MEGF10 Antibody, FITC conjugated

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Product Specs

Buffer
Preservative: 0.03% Proclin 300
Constituents: 50% Glycerol, 0.01M PBS, pH 7.4
Form
Liquid
Lead Time
Typically, we can ship your order within 1-3 business days of receiving it. Delivery times may vary depending on the shipping method and destination. Please contact your local distributor for specific delivery details.
Synonyms
MEGF10 antibody; KIAA1780Multiple epidermal growth factor-like domains protein 10 antibody; Multiple EGF-like domains protein 10 antibody
Target Names
MEGF10
Uniprot No.

Target Background

Function
MEGF10 is a membrane receptor crucial for phagocytosis, the process by which macrophages and astrocytes engulf apoptotic cells. It acts as a receptor for C1q, a signal indicating that a cell should be engulfed, by binding to phosphatidylserine displayed on the surface of apoptotic cells. MEGF10 collaborates with ABCA1 in facilitating engulfment. It promotes the formation of large intracellular vacuoles and is potentially involved in the uptake of amyloid-beta peptides. MEGF10 is essential for astrocyte-mediated clearance of apoptotic neurons in the developing cerebellum. Beyond its role in cell engulfment, MEGF10 is implicated in muscle cell proliferation, adhesion, and motility. It plays a crucial role in regulating myogenesis, the process of muscle cell development. MEGF10 controls the balance between skeletal muscle satellite cell proliferation and differentiation by regulating the notch signaling pathway. Additionally, it may contribute to the precise distribution of specific neuron subtypes in the retina through homotypic retinal neuron repulsion. This mosaic arrangement ensures that each cell type is evenly spread across the retina, granting all parts of the visual field access to a complete set of processing elements.
Gene References Into Functions
  1. Research findings suggest that methylation levels and mRNA expression of MEGF10 in glioma are correlated with IDH mutations and are associated with the clinical outcome of patients. PMID: 29887919
  2. Focusing on hypermethylated genes to identify potential tumor suppressor loci, the study found that the cell engulfment and adhesion factor gene MEGF10 is epigenetically repressed by DNA hypermethylation or by H3K27/K9 methylation in neuroblastoma cell lines. PMID: 27862318
  3. Mutations in MEGF10 can lead to myopathy with adult-onset respiratory insufficiency. PMID: 26802438
  4. Results indicate that myogenin positively regulates the transcriptional regulation of MEGF10 in skeletal muscle. PMID: 25044114
  5. Megf10 is essential for maintaining the undifferentiated, proliferative potential of satellite cells, myogenic precursors that regenerate skeletal muscle in response to injury or disease. PMID: 22371254
  6. Mutations in MEGF10 cause a recessive congenital myopathy with minicores, suggesting that satellite cell dysfunction is the underlying pathogenic mechanism. PMID: 22371254
  7. Mutations in MEGF10, a regulator of satellite cell myogenesis, cause early onset myopathy, areflexia, respiratory distress, and dysphagia (EMARDD). PMID: 22101682
  8. This study found no association between schizophrenia and rs27388 of the MEGF10 gene in a Chinese case-control sample. PMID: 20813413
  9. MEGF10 is involved in the uptake of amyloid-beta peptide (Abeta42) in the brain. PMID: 20828568
  10. In a forced expression system using transfection, MEGF10 function can be modulated by the ATP binding cassette transporter ABCA1, which is homologous to CED-7. PMID: 17205124
  11. Human MEGF10 is an ortholog of Ced1. PMID: 17498693
  12. An interaction between MEGF10 and clathrin assembly protein complex 2 medium chain (AP50), a component of clathrin-coated pits, was identified. PMID: 17643423
  13. Expression studies revealed higher MEGF10 levels in affected individuals compared to unaffected individuals (p = .015). Schizophrenia patients with a 1/1 genotype at rs27388 exhibited higher expression levels than those with 1/2 and 2/2 genotypes (p = .0008). PMID: 18179784

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Database Links

HGNC: 29634

OMIM: 612453

KEGG: hsa:84466

STRING: 9606.ENSP00000274473

UniGene: Hs.438709

Involvement In Disease
Myopathy, early-onset, areflexia, respiratory distress, and dysphagia (EMARDD)
Protein Families
MEGF family
Subcellular Location
Cell membrane; Single-pass type I membrane protein. Cell projection, phagocytic cup.

Q&A

What is MEGF10 and why is it important in scientific research?

MEGF10 (Multiple EGF-like-domains 10) is a 1,140 amino acid protein encoded by the human gene MEGF10. It belongs to the MEGF family and contains fifteen EGF-like domains and one EMI domain. MEGF10 functions as an engulfment receptor protein that localizes to the plasma membrane in a punctuated pattern and shares structural similarities with the nematode engulfment receptor cell death abnormal-1 (CED-1) . Research interest in MEGF10 stems from its critical roles in several biological processes, including:

  • Phagocytosis and clearance of apoptotic cells (engulfment)

  • Uptake of amyloid-β peptides in the brain, which has implications for neurodegenerative disorders

  • Regulation of satellite cell myogenic programs in muscle development and regeneration

The protein is predominantly expressed in the brain where it functions as a phagocytic receptor and has been shown to participate in the uptake of amyloid-β, suggesting a potential role in Alzheimer's disease pathology .

What are the basic characteristics of MEGF10 antibodies with FITC conjugation?

MEGF10 antibodies with FITC conjugation combine the specific binding properties of anti-MEGF10 antibodies with the fluorescent capabilities of FITC (Fluorescein Isothiocyanate), enabling direct visualization of MEGF10 in various applications. The key characteristics include:

  • Conjugation: FITC fluorophore directly attached to the antibody, eliminating the need for secondary antibody detection

  • Host: Typically raised in rabbit (polyclonal)

  • Clonality: Most commonly available as polyclonal antibodies

  • Reactivity: Primary reactivity to mouse MEGF10, with predicted cross-reactivity to human, rat, and other species

  • Applications: Primarily used in immunofluorescence applications including IF(IHC-P), IF(IHC-F), and IF(ICC)

  • Storage: Typically stored in buffers containing glycerol at -20°C to maintain stability

  • Working dilution: Generally used at dilutions between 1:50-1:200 for immunofluorescence applications

The fluorescent properties of FITC (excitation ~495 nm, emission ~519 nm) make these conjugated antibodies particularly valuable for multicolor immunofluorescence studies where MEGF10 localization is analyzed in relation to other cellular components.

How does MEGF10 function in cellular processes based on current research?

Recent research has revealed several critical functions of MEGF10 in cellular processes:

Phagocytic activity: MEGF10 acts as an engulfment receptor that plays a key role in the clearance of apoptotic cells. During the engulfment process, MEGF10 is expressed at the cell surface in clusters around cell corpses and is recruited to the bottom of the forming phagocytic cup during the engulfment of apoptotic thymocytes .

Amyloid-β uptake: MEGF10 functions as a receptor for the uptake of amyloid-β peptides in the brain. Experiments with HeLa cells expressing MEGF10 demonstrated significant internalization of FITC-conjugated Aβ42, while control cells did not exhibit this uptake. This process appears to be predominantly mediated through a lipid raft-dependent pathway rather than through early endosomes, as evidenced by greater co-localization with Cholera toxin B subunit (a lipid raft marker) compared to EEA1 (an early endosomal marker) .

Regulation of myogenic differentiation: In muscle satellite cells, MEGF10 appears to regulate the balance between proliferation and differentiation. Overexpression of Megf10 in C2C12 myoblasts increased their proliferation rate while inhibiting terminal differentiation. Conversely, knockdown of Megf10 expression promoted differentiation, suggesting that MEGF10 helps maintain the proliferative state of satellite cells .

These diverse functions highlight the importance of MEGF10 in tissue homeostasis, potential neurodegenerative disease mechanisms, and muscle development/regeneration.

What are the optimal protocols for using FITC-conjugated MEGF10 antibodies in immunofluorescence applications?

When using FITC-conjugated MEGF10 antibodies for immunofluorescence applications, researchers should consider the following optimized protocol:

For paraffin-embedded tissue sections (IF-IHC-P):

  • Deparaffinize and rehydrate tissue sections through xylene and graded alcohols

  • Perform antigen retrieval (typically heat-mediated in citrate buffer pH 6.0 or EDTA buffer pH 8.0)

  • Block non-specific binding with 5-10% normal serum from the same species as the secondary antibody for 1 hour at room temperature

  • Apply FITC-conjugated MEGF10 antibody diluted 1:50-1:200 in antibody dilution buffer

  • Incubate in a humidified chamber overnight at 4°C (protected from light)

  • Wash three times with PBS (5 minutes each)

  • Counterstain nuclei with DAPI

  • Mount with anti-fade mounting medium

  • Store slides at 4°C protected from light

For cultured cells (IF-ICC):

  • Fix cells with 4% paraformaldehyde for 15 minutes at room temperature

  • Permeabilize with 0.1-0.5% Triton X-100 in PBS for 10 minutes

  • Block with 5% normal serum in PBS for 1 hour

  • Apply FITC-conjugated MEGF10 antibody diluted 1:50-1:200 in antibody dilution buffer

  • Incubate overnight at 4°C (protected from light)

  • Wash three times with PBS (5 minutes each)

  • Counterstain nuclei with DAPI

  • Mount with anti-fade mounting medium

  • Image using fluorescence microscopy with appropriate filters for FITC detection

Critical considerations:

  • Always include appropriate negative controls (omitting primary antibody) and positive controls (tissues or cells known to express MEGF10)

  • Protect the FITC-conjugated antibody from light during all steps to prevent photobleaching

  • When performing co-localization studies, select secondary fluorophores with minimal spectral overlap with FITC

  • For optimal results, titrate the antibody concentration for each specific application and sample type

How can researchers validate the specificity of FITC-conjugated MEGF10 antibodies?

Validating antibody specificity is crucial for ensuring reliable experimental results. For FITC-conjugated MEGF10 antibodies, the following validation approaches are recommended:

1. Genetic knockdown/knockout validation:

  • Transfect cells with MEGF10-specific siRNA or use CRISPR/Cas9 to generate MEGF10-knockout cells

  • Compare immunofluorescence staining between control and MEGF10-depleted samples

  • A significant reduction in signal in the depleted samples confirms specificity, as demonstrated in studies where knockdown of MEGF10 in neuroblastoma cells inhibited the uptake of Aβ42

2. Overexpression validation:

  • Transfect cells with a MEGF10 expression construct (such as the full-length human MEGF10 cDNA with a FLAG-tag as used in published research)

  • Compare staining intensity between transfected and non-transfected cells

  • Increased signal intensity in overexpressing cells supports antibody specificity

3. Cross-validation with different antibodies:

  • Use multiple antibodies against different epitopes of MEGF10

  • Compare staining patterns to ensure consistency

  • Concordant results from different antibodies increase confidence in specificity

4. Peptide competition assay:

  • Pre-incubate the FITC-conjugated MEGF10 antibody with excess immunizing peptide

  • Apply to parallel samples alongside the non-blocked antibody

  • Specific staining should be significantly reduced in the peptide-blocked samples

5. Western blot correlation:

  • Perform Western blot analysis using the same antibody (if available in non-conjugated form)

  • Correlation between the expected ~125 kDa band for MEGF10 and immunofluorescence patterns increases confidence in specificity

6. Species cross-reactivity confirmation:

  • Test the antibody on samples from different species to verify predicted cross-reactivity

  • Compare with known expression patterns in these species

A systematic combination of these validation approaches provides strong evidence for antibody specificity and should be documented in research publications.

What controls should be included when using FITC-conjugated MEGF10 antibodies?

Proper experimental controls are essential when using FITC-conjugated MEGF10 antibodies to ensure accurate interpretation of results:

Essential negative controls:

  • No primary antibody control: Samples processed identically but with the primary antibody omitted to assess background fluorescence and non-specific binding of components in the buffer

  • Isotype control: Samples incubated with a FITC-conjugated irrelevant antibody of the same isotype (e.g., rabbit IgG-FITC) at the same concentration to identify non-specific binding due to Fc receptor interactions or other non-specific interactions

  • Blocking peptide control: Samples stained with FITC-conjugated MEGF10 antibody pre-incubated with excess immunizing peptide to verify binding specificity

Essential positive controls:

  • Known positive tissue/cell samples: Tissues or cells with confirmed MEGF10 expression (e.g., brain tissue, C6 rat glioma cells, BV2 mouse microglial cells, or N2A mouse neuroblastoma cells which show high MEGF10 expression)

  • Overexpression control: Cells transfected with MEGF10 expression construct (such as the HeLa/MEGF10 model used in published studies)

Technical controls:

  • Autofluorescence control: Unstained sample to assess natural fluorescence of the tissue/cells

  • Single-color controls: When performing multicolor immunofluorescence, include single-stained samples for each fluorophore to establish appropriate compensation settings and identify any spectral overlap

  • Secondary antibody control: For experiments where multiple primary antibodies are being used alongside the FITC-conjugated antibody

Experimental manipulation controls:

  • Knockdown/knockout validation: Cells with MEGF10 expression reduced by siRNA or CRISPR to demonstrate antibody specificity and signal reduction

  • Treatment response: Samples from experimental conditions known to alter MEGF10 expression (e.g., differentiation conditions that downregulate MEGF10 expression)

Including these controls and properly documenting them increases the reliability and reproducibility of research findings using FITC-conjugated MEGF10 antibodies.

How can FITC-conjugated MEGF10 antibodies be utilized to study amyloid-β uptake mechanisms?

FITC-conjugated MEGF10 antibodies serve as powerful tools for investigating the role of MEGF10 in amyloid-β uptake, particularly in neurodegenerative disease research. Based on published findings, the following experimental approaches are recommended:

Visualization of MEGF10-Aβ interactions:

  • Prepare neuronal or glial cell cultures expressing MEGF10

  • Expose cells to fluorescently labeled Aβ42 (different fluorophore than FITC)

  • Fix cells at different time points post-exposure

  • Stain with FITC-conjugated MEGF10 antibody

  • Analyze co-localization using high-resolution confocal microscopy

  • Quantify co-localization coefficients between MEGF10 and Aβ42 signals

Investigation of uptake mechanisms:
Research has shown that MEGF10-mediated Aβ uptake primarily occurs through lipid raft-dependent pathways. To investigate this:

  • Treat cells with FITC-conjugated MEGF10 antibody alongside markers for different endocytic pathways:

    • Cholera toxin B subunit (CTxB) for lipid raft-dependent endocytosis

    • Early Endosome Antigen 1 (EEA1) for clathrin-dependent endocytosis

  • Expose cells to fluorescently labeled Aβ42

  • Analyze triple co-localization to determine the predominant uptake pathway

  • Quantify the percentage of internalized Aβ42 that co-localizes with each pathway marker

Pathway inhibition studies:

  • Treat cells with pathway-specific inhibitors:

    • Methyl-β-cyclodextrin to selectively inhibit caveolae/raft-dependent endocytosis

    • Chlorpromazine to inhibit clathrin-dependent endocytosis

  • Assess changes in MEGF10 distribution and Aβ42 uptake using FITC-conjugated MEGF10 antibodies

  • Quantify the effects on internalization efficiency

MEGF10 knockdown studies:
Studies have demonstrated that knockdown of MEGF10 inhibits the uptake of Aβ42 in neuroblastoma cells. To replicate and extend these findings:

  • Transfect neuronal cells with MEGF10 siRNA or control siRNA

  • Confirm knockdown efficiency using FITC-conjugated MEGF10 antibodies

  • Expose cells to fluorescently labeled Aβ42

  • Quantify internalization in control versus knockdown cells

  • Analyze co-localization with pathway markers to determine if alternative uptake mechanisms are utilized in MEGF10-deficient cells

This approach revealed that when N2A cells were treated with MEGF10 siRNA, the internalized Aβ42 that co-localized with CTxB was reduced by ~24%, compared with 62% in control siRNA-treated cells, confirming MEGF10's role in lipid raft-dependent Aβ uptake .

What are the considerations for using FITC-conjugated MEGF10 antibodies in muscle satellite cell research?

MEGF10 plays a crucial role in regulating satellite cell function during muscle development and regeneration. When using FITC-conjugated MEGF10 antibodies in this research context, several considerations should be addressed:

Developmental expression profiling:
Research has shown that Megf10 expression is markedly downregulated during myoblast differentiation . To study this:

  • Isolate satellite cells from muscle tissue at different developmental stages

  • Analyze MEGF10 expression patterns using FITC-conjugated antibodies throughout the differentiation process

  • Quantify fluorescence intensity changes as cells progress from quiescence to activation and differentiation

  • Correlate MEGF10 expression levels with markers of satellite cell states (Pax7, MyoD, Myogenin)

Co-localization with satellite cell markers:

  • Perform dual immunofluorescence using FITC-conjugated MEGF10 antibodies alongside antibodies against:

    • Pax7 (quiescent and activated satellite cells)

    • MyoD (activated and proliferating satellite cells)

    • Myogenin (differentiating satellite cells)

  • Quantify co-expression patterns to determine the precise satellite cell subpopulation expressing MEGF10

Ex vivo satellite cell analysis:

  • Isolate individual muscle fibers with associated satellite cells

  • Maintain fibers in culture to allow satellite cell activation

  • Transfect satellite cells with control or MEGF10 siRNA

  • Monitor MEGF10 expression using FITC-conjugated antibodies

  • Assess proliferation and differentiation responses

This approach is supported by research showing that siRNA-mediated knockdown of Megf10 in satellite cells on isolated muscle fibers affects their proliferative potential .

Functional studies:
Based on findings that MEGF10 overexpression increases proliferation while inhibiting differentiation :

  • Establish myoblast cultures with modulated MEGF10 expression:

    • Control

    • MEGF10 overexpression

    • MEGF10 knockdown

  • Quantify MEGF10 expression levels using FITC-conjugated antibodies

  • Assess proliferation rates (using EdU incorporation or Ki67 staining)

  • Evaluate differentiation (using MyHC staining)

  • Analyze fusion index (percentage of nuclei in MyHC-positive multinucleated cells)

Technical considerations:

  • Muscle tissue often exhibits high autofluorescence, so include appropriate controls

  • FITC signal may interfere with other common muscle markers; consider using antibodies with more distant emission spectra

  • When imaging whole muscle sections, optimize section thickness (10-15 μm is typically optimal)

  • For quantitative analysis, use standardized exposure settings across all samples

How can researchers troubleshoot common issues with FITC-conjugated MEGF10 antibodies?

When working with FITC-conjugated MEGF10 antibodies, researchers may encounter several technical challenges. The following troubleshooting guide addresses common issues and provides evidence-based solutions:

Issue 1: Weak or absent signal

Potential causes and solutions:

  • Low target expression: MEGF10 expression varies significantly across cell types. Brain-derived cells typically show higher expression than other tissues . Consider using positive control samples with known MEGF10 expression.

  • Insufficient antibody concentration: Titrate antibody concentrations, starting with the manufacturer's recommended dilution (typically 1:50-1:200) and adjust as needed.

  • Inadequate antigen retrieval: For FFPE tissues, optimize antigen retrieval methods (heat-induced epitope retrieval in citrate buffer pH 6.0 or EDTA buffer pH 8.0).

  • Photobleaching: FITC is susceptible to photobleaching. Protect samples from light during all protocol steps and use anti-fade mounting media with DAPI.

  • Antibody degradation: Store antibodies as recommended (typically at -20°C in glycerol-containing buffer) and avoid repeated freeze-thaw cycles.

Issue 2: High background or non-specific staining

Potential causes and solutions:

  • Excessive antibody concentration: Titrate to determine the optimal concentration that provides specific signal with minimal background.

  • Insufficient blocking: Increase blocking time (1-2 hours) and concentration (5-10% normal serum).

  • Autofluorescence: Particularly common in muscle and brain tissues. Pre-treat sections with autofluorescence quenchers or use spectral unmixing during image acquisition.

  • Non-specific binding: Include isotype controls and consider additional blocking with 1% BSA, 0.1% gelatin, or commercial protein blockers.

  • Cross-reactivity: Validate antibody specificity using knockdown/knockout controls as described in section 2.2.

Issue 3: Signal localization discrepancies

Potential causes and solutions:

  • Fixation artifacts: Optimize fixation conditions. MEGF10 is primarily localized to the plasma membrane, with some cytoplasmic expression .

  • Permeabilization issues: Adjust detergent concentration and incubation time. Excessive permeabilization can disrupt membrane structures affecting MEGF10 localization.

  • Internalization during processing: MEGF10 can be internalized during experimental manipulations. Consider live-cell labeling approaches for surface MEGF10 detection.

Issue 4: Poor co-localization results

Potential causes and solutions:

  • Spectral overlap: FITC emission may bleed into other channels. Use appropriate filter sets and perform single-color controls for compensation.

  • Sequential vs. simultaneous staining: For co-localization studies with other membrane proteins, sequential staining may be preferable to prevent steric hindrance.

  • Antibody competition: When using multiple antibodies against interacting proteins, binding of one antibody may block epitopes for the other.

Issue 5: Inconsistent results across experiments

Potential causes and solutions:

  • Antibody lot variation: Document lot numbers and request the same lot for critical comparative studies.

  • Protocol standardization: Develop detailed SOPs with precisely defined conditions for each step.

  • Sample preparation variations: Standardize tissue collection, fixation duration, and processing steps.

  • Image acquisition settings: Use identical acquisition parameters (exposure time, gain, offset) across all comparable samples.

What are the emerging applications and future directions for MEGF10 antibody research?

Based on current research and emerging trends, several promising future directions for MEGF10 antibody research warrant investigation:

Neurodegenerative disease mechanisms:
Given MEGF10's role in amyloid-β uptake , FITC-conjugated MEGF10 antibodies could be instrumental in:

  • Screening potential therapeutic compounds that modulate MEGF10-mediated amyloid clearance

  • Developing in vivo imaging techniques to visualize MEGF10 expression in animal models of Alzheimer's disease

  • Investigating the relationship between MEGF10 expression levels and disease progression

  • Exploring whether MEGF10 similarly affects the clearance of other pathological protein aggregates (α-synuclein, tau, etc.)

Muscle disease and regeneration:
Building on findings that MEGF10 regulates satellite cell function :

  • Investigating MEGF10 expression in various myopathies and muscular dystrophies

  • Assessing whether modulation of MEGF10 can enhance muscle regeneration in injury or disease models

  • Developing therapeutic approaches targeting the MEGF10 pathway to promote satellite cell-mediated repair

  • Exploring the interplay between MEGF10 and other key regulators of muscle stem cell function

Cell-specific targeting strategies:

  • Developing antibody-drug conjugates using anti-MEGF10 antibodies to deliver therapeutics specifically to MEGF10-expressing cells

  • Creating bispecific antibodies that link MEGF10-expressing cells with therapeutic targets

  • Engineering antibody fragments with enhanced tissue penetration for in vivo applications

Advanced imaging techniques:

  • Implementing super-resolution microscopy with FITC-conjugated MEGF10 antibodies to visualize nanoscale protein organization

  • Developing intravital imaging approaches to monitor MEGF10 dynamics in living tissues

  • Applying correlative light and electron microscopy to connect MEGF10 fluorescence patterns with ultrastructural features

Multi-omics integration:

  • Correlating MEGF10 protein expression patterns detected with antibodies to transcriptomic profiles

  • Developing antibody-based proximity labeling techniques to identify MEGF10-interacting proteins

  • Combining MEGF10 antibody staining with spatial transcriptomics to map expression patterns in complex tissues

Technological innovations:

  • Developing pH-sensitive FITC variants conjugated to MEGF10 antibodies to track receptor internalization and endosomal trafficking

  • Creating photoactivatable MEGF10 antibodies for pulse-chase experiments to track protein dynamics

  • Engineering nanobodies against MEGF10 for improved tissue penetration and reduced immunogenicity

These emerging directions highlight the continued importance of well-validated FITC-conjugated MEGF10 antibodies in advancing our understanding of fundamental biological processes and disease mechanisms.

What are the detailed specifications and performance characteristics of available FITC-conjugated MEGF10 antibodies?

The following table provides a comprehensive overview of the technical specifications for commercially available FITC-conjugated MEGF10 antibodies based on the search results:

SpecificationMEGF10 Polyclonal Antibody (Bioss)Other Available MEGF10 Antibodies
Catalog #bs-12372R-FITC Various (ABIN7255341, etc.)
HostRabbit Rabbit
ClonalityPolyclonal Polyclonal
ImmunogenKLH conjugated synthetic peptide derived from human MEGF10 Recombinant fusion protein of human MEGF10 (NP_001295048.1)
Immunogen RangeAA 55-150/1140 AA 55-150 (various epitopes available)
ReactivityMouse (primary), Human, Rat, Dog, Cow, Sheep, Pig, Horse, Chicken (predicted) Human, Mouse, Rat
ApplicationsIF(IHC-P), IF(IHC-F), IF(ICC) Immunofluorescence (IF)
Recommended Dilution1:50-200 for all applications 1:50-1:200 for IF applications
Concentration1μg/μl Varies by product
Purification MethodProtein A Affinity purification
Storage BufferAqueous buffered solution containing 0.01M TBS (pH 7.4) with 1% BSA, 0.03% Proclin300 and 50% Glycerol Varies by manufacturer
Storage Condition-20°C, aliquot to avoid freeze-thaw cycles Typically -20°C
IsotypeIgG IgG
FluorophoreFITC FITC and other options (AbBy Fluor® 350, 488, 680, 750)
Excitation/Emission~495nm/~519nm (FITC standard)Varies by fluorophore

Performance characteristics comparison:

Sensitivity: While direct comparative studies between different FITC-conjugated MEGF10 antibodies are not available in the search results, the general sensitivity of these antibodies appears sufficient for detecting both endogenous and overexpressed MEGF10 in appropriate samples. Studies have successfully used MEGF10 antibodies to detect expression in neuroblastoma cells and muscle satellite cells .

Specificity: Antibody specificity has been validated through siRNA-mediated knockdown approaches, where reduced MEGF10 expression correlates with decreased antibody signal . Additionally, overexpression models show increased signal intensity in cells transfected with MEGF10 expression constructs .

Cross-reactivity: While the Bioss antibody (bs-12372R-FITC) is noted to have confirmed reactivity to mouse MEGF10 with predicted cross-reactivity to multiple species including human, rat, and others , detailed cross-reactivity validation data is not provided in the search results.

What is the current understanding of MEGF10's role in physiological and pathological processes?

MEGF10 has emerged as a multifunctional protein involved in several key physiological processes, with implications in various pathological conditions:

Physiological roles:

1. Phagocytosis and engulfment:
MEGF10 functions as an engulfment receptor protein that localizes to the plasma membrane. It shares structural similarities with the nematode engulfment receptor cell death abnormal-1 (CED-1) and participates in the clearance of apoptotic cells. During engulfment, MEGF10 is expressed at the cell surface in clusters around cell corpses and is recruited to the phagocytic cup . This function is essential for tissue homeostasis and prevention of inflammatory responses to cellular debris.

2. Amyloid-β clearance:
MEGF10 serves as a receptor for the uptake of amyloid-β peptides in the brain. Studies using HeLa cells expressing MEGF10 demonstrated significant internalization of FITC-conjugated Aβ42 compared to control cells . This uptake appears to occur primarily through lipid raft-dependent pathways rather than clathrin-dependent endocytosis, as evidenced by greater co-localization with Cholera toxin B subunit than with Early Endosome Antigen 1 . This function suggests a potential role for MEGF10 in the clearance of neurotoxic protein aggregates under normal physiological conditions.

3. Muscle satellite cell regulation:
In skeletal muscle, MEGF10 plays a critical role in regulating satellite cell function. It is predominantly expressed in quiescent and activated satellite cells, with expression markedly decreasing during differentiation . Experimental evidence indicates that MEGF10 overexpression promotes satellite cell proliferation while inhibiting differentiation and fusion. Specifically:

  • C2C12 myoblasts overexpressing Megf10 showed a 2.5-hour decrease in doubling time compared to controls

  • Only 15% of cells overexpressing Megf10 underwent terminal differentiation after 5 days in low-serum conditions, compared to >80% of control cells

  • Of the differentiated cells, approximately 50% remained mononuclear, indicating impaired fusion

These findings establish MEGF10 as a regulator of the balance between proliferation and differentiation within the satellite cell compartment, essential for proper muscle development and regeneration.

Pathological implications:

1. Neurodegenerative disorders:
The role of MEGF10 in amyloid-β uptake suggests potential implications in Alzheimer's disease pathology. Inefficient clearance of amyloid-β is considered a contributing factor to amyloid plaque formation. MEGF10 dysfunction could potentially affect this clearance mechanism, though direct evidence linking MEGF10 to Alzheimer's disease progression is not provided in the search results.

2. Muscle disorders:
Given MEGF10's function in satellite cell regulation, alterations in its expression or activity could contribute to muscle pathologies. While not specifically detailed in the provided search results, the critical role of MEGF10 in maintaining the proliferative potential of satellite cells suggests that dysfunction could impair muscle regeneration capacity.

Understanding these physiological and pathological roles provides the foundation for developing targeted research approaches using FITC-conjugated MEGF10 antibodies to further elucidate molecular mechanisms and potential therapeutic interventions.

What are the key considerations for selecting the appropriate MEGF10 antibody for specific research applications?

When selecting a MEGF10 antibody for research applications, researchers should consider several critical factors to ensure optimal experimental outcomes:

1. Experimental application compatibility:
Different research applications have specific antibody requirements. For MEGF10 research:

  • Immunofluorescence studies: FITC-conjugated antibodies eliminate the need for secondary detection and are ideal for co-localization studies, with recommended dilutions of 1:50-1:200

  • Mechanistic studies of Aβ uptake: Antibodies recognizing the extracellular domain (AA 55-150) are suitable based on published research demonstrating successful visualization of MEGF10-mediated Aβ internalization

  • Muscle satellite cell research: Antibodies validated in muscle tissue are essential, particularly those capable of detecting MEGF10 in both activated and quiescent satellite cells

2. Epitope selection:
The choice of epitope impacts antibody functionality and specificity:

  • Antibodies targeting the extracellular domain (e.g., AA 55-150/1140) are suitable for detecting surface-expressed MEGF10 involved in phagocytosis and Aβ uptake

  • For detection of potentially cleaved or processed forms, consider antibodies targeting different regions (e.g., AA 26-160 or AA 1041-1140)

  • When studying protein-protein interactions, select antibodies targeting epitopes away from known interaction domains to avoid masking

3. Species cross-reactivity:
MEGF10 antibodies vary in their cross-reactivity profiles:

  • For comparative studies across species, select antibodies with validated cross-reactivity (e.g., antibodies reactive to human, mouse, and rat MEGF10)

  • For species-specific studies, choose antibodies with minimal cross-reactivity to avoid misleading results

  • Confirm predicted cross-reactivity experimentally before conducting extensive studies

4. Clonality considerations:
Most available MEGF10 antibodies are polyclonal , which offers:

5. Conjugation options:
Beyond FITC conjugation, consider:

  • Alternative fluorophores if performing multicolor imaging where spectral overlap is a concern

  • Unconjugated antibodies for applications requiring amplification steps

  • Biotin conjugation for specialized detection systems

  • Enzyme conjugations (e.g., HRP) for chromogenic applications

6. Validation evidence:
Prioritize antibodies with comprehensive validation data:

  • Genetic knockdown/knockout validation

  • Overexpression systems

  • Peptide competition assays

  • Species cross-reactivity confirmation

  • Application-specific validation (e.g., published use in specific techniques)

7. Technical support considerations:
Evaluate the technical support provided by manufacturers:

  • Detailed protocols optimized for specific applications

  • Troubleshooting guidance

  • Access to validation data

  • Lot-to-lot consistency information

By systematically evaluating these factors, researchers can select the most appropriate MEGF10 antibody for their specific research questions, experimental systems, and technical requirements.

How might future technological advances enhance MEGF10 antibody applications in research?

The field of antibody technology continues to evolve rapidly, promising several advances that could significantly enhance MEGF10 research:

1. Advanced antibody engineering:

  • Single-domain antibodies (nanobodies): Developing MEGF10-targeting nanobodies could provide superior tissue penetration, reduced immunogenicity, and access to epitopes difficult to reach with conventional antibodies

  • Bispecific antibodies: Engineering antibodies that simultaneously target MEGF10 and other proteins of interest (e.g., amyloid-β or myogenic factors) could enable novel functional studies of protein interactions

  • Site-specific conjugation: Next-generation conjugation methods that attach fluorophores at defined positions rather than random lysine residues could improve consistency and preserve antibody functionality

2. Novel fluorescent technologies:

  • Quantum dots: Conjugating MEGF10 antibodies to quantum dots could provide exceptional photostability for long-term imaging and superior brightness for detecting low-abundance targets

  • Photoactivatable fluorophores: Developing MEGF10 antibodies with photoactivatable fluorophores would enable super-resolution microscopy applications and precise spatiotemporal studies of MEGF10 dynamics

  • FRET-based sensors: Engineered antibody pairs with donor-acceptor fluorophores could report on MEGF10 conformational changes or interactions with binding partners

3. Multiparametric analysis techniques:

  • Mass cytometry (CyTOF): Metal-conjugated MEGF10 antibodies could enable high-dimensional analysis of MEGF10 expression alongside dozens of other markers in complex tissue samples

  • Spatial transcriptomics integration: Combining FITC-conjugated MEGF10 antibody staining with spatial transcriptomics would correlate protein localization with gene expression patterns in the same sample

  • Multiplexed imaging: Advanced multiplexing techniques could allow simultaneous visualization of MEGF10 alongside numerous other proteins in the same sample

4. In vivo applications:

  • Intravital microscopy: Developing non-toxic, membrane-permeable MEGF10 antibody derivatives could enable real-time imaging of MEGF10 dynamics in living animals

  • PET/SPECT imaging: Radiolabeled MEGF10 antibodies could facilitate whole-body imaging of MEGF10 expression patterns in disease models

  • Optogenetic integration: Coupling MEGF10 antibody binding to optogenetic systems could enable light-controlled manipulation of MEGF10 function in vivo

5. High-throughput screening applications:

  • Antibody arrays: Developing MEGF10 antibody arrays could enable rapid screening of MEGF10 expression across multiple samples simultaneously

  • Microfluidic platforms: Integration with microfluidic devices could enable high-throughput screening of compounds that modulate MEGF10 expression or function

  • AI-assisted analysis: Machine learning algorithms could enhance detection and quantification of complex MEGF10 expression patterns in large datasets

6. Therapeutic applications:

  • Antibody-drug conjugates: MEGF10-targeting antibodies could deliver therapeutic payloads specifically to cells expressing high levels of MEGF10

  • Engineered exosomes: Exosomes decorated with MEGF10-targeting antibody fragments could deliver therapeutic cargo to specific cell populations

  • CAR-T approaches: Chimeric antigen receptors incorporating MEGF10-binding domains could direct immune responses to specific cellular targets

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