EXOSC10 Antibody

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Product Specs

Buffer
PBS with 0.1% Sodium Azide, 50% Glycerol, pH 7.3. Store at -20°C. Avoid repeated freeze-thaw cycles.
Lead Time
Typically, we can ship your orders within 1-3 business days after receiving them. Delivery time may vary depending on the purchasing method or location. Please consult your local distributors for specific delivery timeframes.
Synonyms
Autoantigen PM/Scl 2 antibody; Exosc10 antibody; Exosome component 10 antibody; EXOSX_HUMAN antibody; P100 polymyositis scleroderma overlap syndrome associated autoantigen antibody; P100 polymyositis-scleroderma overlap syndrome-associated autoantigen antibody; p2 antibody; p3 antibody; p4 antibody; PM Scl antibody; PM/Scl 100 antibody; PM/Scl-100 antibody; PMSCL antibody; PMSCL2 antibody; Polymyositis/scleroderma autoantigen 100 kDa antibody; Polymyositis/scleroderma autoantigen 2 100 kDa antibody; Polymyositis/scleroderma autoantigen 2 antibody; RRP6 antibody; Rrp6p antibody
Target Names
Uniprot No.

Target Background

Function
EXOSC10 is a putative catalytic component of the RNA exosome complex. It possesses 3'->5' exoribonuclease activity and plays a critical role in various cellular RNA processing and degradation events. In the nucleus, the RNA exosome complex participates in the proper maturation of stable RNA species such as rRNA, snRNA, and snoRNA. It also eliminates RNA processing byproducts and non-coding 'pervasive' transcripts, including antisense RNA species and promoter-upstream transcripts (PROMPTs). Additionally, it targets mRNAs with processing defects, preventing their export to the cytoplasm. The RNA exosome may be involved in Ig class switch recombination (CSR) and/or Ig variable region somatic hypermutation (SHM) by directing AICDA deamination activity towards transcribed dsDNA substrates. In the cytoplasm, the RNA exosome complex participates in general mRNA turnover, specifically degrading inherently unstable mRNAs containing AU-rich elements (AREs) within their 3' untranslated regions. It also contributes to RNA surveillance pathways, preventing the translation of aberrant mRNAs. Furthermore, it appears to be involved in the degradation of histone mRNA. EXOSC10 exhibits 3'-5' exonuclease activity and is essential for the nucleolar localization of C1D. It likely mediates the association of MTREX, C1D, and MPHOSPH6 with the RNA exosome, which is involved in the maturation of 5.8S rRNA.
Gene References Into Functions
  1. Rrp6: Plays integrated roles in nuclear RNA metabolism and transcription termination. PMID: 26612606
  2. EXOSC10 can be modified by SUMOylation, a significant regulatory mechanism during physiological stress both in vitro and in vivo. PMID: 26857222
  3. DGCR8 forms an alternative complex with the RRP6-containing form of the exosome, acting as an adaptor to recruit the exosome to target structured RNAs. The DGCR8/hRRP6 complex regulates the stability of human telomerase RNA. PMID: 26687677
  4. The Microprocessor orchestrates the recruitment of termination factors Setx and Xrn2, along with the 3'-5' exoribonuclease, Rrp6, to initiate RNAPII pausing and premature termination at the HIV-1 promoter through cleavage of the stem-loop RNA, TAR. PMID: 22980978
  5. Systemic sclerosis patients with anti-PM-Scl antibody are younger and significantly more likely to have limited cutaneous involvement, skeletal muscle disease, pulmonary fibrosis, and calcinosis. PMID: 22261302
  6. Research has characterized Saccharomyces cerevisiae Rrp6 and determined the X-ray structure of a human construct containing the exoribonuclease and HRDC domains, which retains catalytic activity. PMID: 21705430
  7. Cloning of a more complete cDNA for PM/Scl-75 revealed 84 additional amino acids at its N terminus. Only this extended polypeptide is capable of associating with the exosome complex. PMID: 12788944
  8. Autoantibodies specific to this antigen are also detected in systemic sclerosis. PMID: 19103309
  9. Anti-PM/Scl antibodies are prevalent in distinct subsets of systemic sclerosis and are linked to several clinical symptoms. PMID: 19220911
Database Links

HGNC: 9138

OMIM: 605960

KEGG: hsa:5394

STRING: 9606.ENSP00000366135

UniGene: Hs.632368

Subcellular Location
Cytoplasm. Nucleus, nucleolus. Nucleus. Note=Strongly enriched in the nucleolus and a small amount has been found in cytoplasm supporting the existence of a nucleolar RNA exosome complex form.

Q&A

What is EXOSC10 and what cellular functions does it perform?

EXOSC10, also known as PM/Scl-100, is a 100 kDa protein that functions as a putative catalytic component of the RNA exosome complex. It possesses 3′->5′ exoribonuclease activity and participates in numerous cellular RNA processing and degradation events . The protein is predominantly localized in the nucleolus, although small amounts have been detected in the cytoplasm, supporting the existence of a nucleolar RNA exosome complex . EXOSC10 is an 885 amino acid protein characterized by one HRDC domain and one 3′-5′ exoribonuclease domain . Within cellular physiology, it plays critical roles in mRNA surveillance, nuclear export of mRNA, and the nonsense-mediated decay pathway that eliminates mRNAs containing premature stop codons . The protein is especially important for degrading unstable mRNAs, particularly those containing AU-rich elements in untranslated regions, thereby contributing to gene expression regulation and cellular homeostasis maintenance .

What types of EXOSC10 antibodies are currently available for research?

Multiple types of EXOSC10 antibodies are available for research applications, varying in host species, clonality, and conjugation status. The major types include:

  • Polyclonal antibodies:

    • Rabbit polyclonal antibodies, such as those offered by Thermo Fisher Scientific (PA5-28672) at varying concentrations

    • Rabbit polyclonal antibodies from Atlas Antibodies at 0.4 mg/ml concentration

    • Rabbit polyclonal antibodies from Proteintech (11178-1-AP) with demonstrated reactivity in human and mouse samples

  • Monoclonal antibodies:

    • Mouse monoclonal IgG1 kappa light chain antibody (B-8) by Santa Cruz Biotechnology, which detects EXOSC10 in mouse, rat, and human samples

  • Conjugated antibody variants:

    • Non-conjugated forms for standard applications

    • Agarose-conjugated for pull-down applications

    • Horseradish peroxidase (HRP)-conjugated for direct detection

    • Fluorescent conjugates including phycoerythrin (PE), fluorescein isothiocyanate (FITC), and various Alexa Fluor® conjugates for fluorescence-based applications

The selection of the appropriate antibody type should be based on the specific experimental requirements, target species, and detection method.

How should I validate EXOSC10 antibody specificity before experimental use?

Validating EXOSC10 antibody specificity is crucial for ensuring reliable experimental results. A comprehensive validation approach should include multiple complementary techniques:

  • Positive control testing: Use recommended positive controls such as 293T cells or EXOSC10-transfected 293T cells for initial validation . HeLa cells have also been documented as positive controls for Western blot applications .

  • Knockout/knockdown validation: Compare antibody reactivity between wild-type samples and those where EXOSC10 has been knocked down or knocked out. This serves as one of the most stringent specificity controls and has been documented in multiple publications for certain EXOSC10 antibodies .

  • Cross-reactivity assessment: Check for predicted reactivity with other species. For instance, some EXOSC10 antibodies show 99% predicted reactivity with chimpanzee EXOSC10 .

  • Molecular weight verification: Confirm that the observed molecular weight matches the expected size. EXOSC10 has a calculated molecular weight of 98 kDa but is typically observed at approximately 100 kDa in experimental systems .

  • Multi-application testing: Verify antibody performance across multiple applications (WB, IP, IF, IHC) if the antibody will be used in different experimental contexts .

  • Immunogen sequence analysis: Review the immunogen used to generate the antibody (e.g., EXOSC10 fusion protein Ag1666) and assess potential cross-reactivity with related proteins .

Implementing these validation steps before conducting critical experiments will significantly enhance data reliability and reproducibility.

What are the optimal protocols for using EXOSC10 antibodies in Western blot applications?

For optimal Western blot performance with EXOSC10 antibodies, researchers should follow these methodological guidelines based on validated protocols:

  • Sample preparation:

    • Use recommended positive control cell lines such as 293T, EXOSC10-transfected 293T, or HeLa cells

    • Prepare whole cell lysates in standard RIPA buffer supplemented with protease inhibitors

    • When targeting nuclear EXOSC10, consider nuclear-cytoplasmic fractionation protocols

  • Protein loading and separation:

    • Load 20-40 μg of total protein per lane

    • Use 8-10% polyacrylamide gels to adequately resolve the 100 kDa EXOSC10 protein

    • Include molecular weight markers that span the 75-150 kDa range

  • Transfer and blocking:

    • Perform transfer to PVDF membranes (preferred over nitrocellulose for high molecular weight proteins)

    • Block membranes with 5% non-fat dry milk or 3-5% BSA in TBST for 1 hour at room temperature

  • Primary antibody incubation:

    • Dilute EXOSC10 antibodies according to manufacturer recommendations:

      • Polyclonal antibodies: 1:500-1:2000 dilution range

      • Monoclonal antibodies: Follow specific manufacturer guidelines

    • Incubate overnight at 4°C with gentle agitation

  • Detection and visualization:

    • Use appropriate secondary antibodies conjugated to HRP

    • For enhanced sensitivity, consider using signal amplification systems

    • Visualize using standard ECL substrates with exposure times optimized for the 100 kDa molecular weight region

  • Expected results:

    • EXOSC10 should be detected at approximately 100 kDa

    • Be aware of potential isoforms resulting from alternative splicing

Proper sample handling, adequate antibody dilution, and appropriate controls are critical factors for successful Western blot detection of EXOSC10.

How can I optimize immunohistochemistry protocols for EXOSC10 detection in tissue samples?

Optimizing immunohistochemistry (IHC) for EXOSC10 detection requires careful attention to tissue processing, antigen retrieval, and staining conditions:

  • Tissue preparation:

    • Fix tissues in 10% neutral buffered formalin for 24-48 hours

    • Process and embed in paraffin following standard protocols

    • Cut sections at 4-5 μm thickness onto adhesive slides

  • Antigen retrieval (critical step):

    • Primary recommendation: Use TE buffer pH 9.0 for heat-induced epitope retrieval

    • Alternative method: Citrate buffer pH 6.0 may also be effective

    • Perform retrieval using pressure cooker or water bath methods (95-98°C for 15-20 minutes)

  • Blocking and antibody application:

    • Block endogenous peroxidase activity with 3% H₂O₂

    • Apply protein block (5% normal serum from secondary antibody host)

    • Use EXOSC10 antibodies at optimized dilutions:

      • For polyclonal antibodies: 1:20-1:200 range

      • Incubate primary antibody overnight at 4°C or 1-2 hours at room temperature

  • Detection and counterstaining:

    • Apply appropriate biotinylated secondary antibody

    • Develop with DAB or other chromogens

    • Counterstain with hematoxylin

    • Expected cellular localization: Primarily nucleolar/nuclear with some cytoplasmic staining

  • Validation controls:

    • Positive tissue control: Human breast cancer tissue has been validated

    • Negative controls: Primary antibody omission and isotype controls

    • Consider parallel staining with different EXOSC10 antibody clones

  • Troubleshooting weak signals:

    • Extend antigen retrieval time

    • Increase antibody concentration

    • Utilize signal amplification systems (e.g., tyramide signal amplification)

    • Extend chromogen development time (while monitoring background)

Optimizing these parameters will enhance EXOSC10 detection sensitivity and specificity in tissue samples.

What are the recommended protocols for immunofluorescence detection of EXOSC10?

For successful immunofluorescence (IF) detection of EXOSC10, researchers should follow these optimized protocols:

  • Cell preparation:

    • Culture cells on glass coverslips or chamber slides

    • Validated cell lines include NIH/3T3 cells and other mammalian cell lines

    • Grow cells to 70-80% confluence for optimal morphology

  • Fixation and permeabilization:

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

    • Permeabilize with 0.2% Triton X-100 for 10 minutes

    • Alternative fixation: Cold methanol (-20°C) for 10 minutes (may better preserve nuclear structures)

  • Blocking and antibody incubation:

    • Block with 5% normal serum (from secondary antibody host) for 30-60 minutes

    • Dilute EXOSC10 antibodies at 1:20-1:200 range

    • Incubate with primary antibody overnight at 4°C or 1-2 hours at room temperature

  • Secondary antibody application:

    • Use fluorophore-conjugated secondary antibodies appropriate for your microscopy setup

    • For co-localization studies, choose spectrally distinct fluorophores

    • Include DAPI or Hoechst for nuclear counterstaining

  • Expected subcellular localization:

    • Primary localization: Nucleolus and nucleus

    • Secondary localization: Diffuse cytoplasmic staining in some cells

    • Appearance: Punctate nuclear pattern with nucleolar enrichment

  • Image acquisition considerations:

    • Use confocal microscopy for precise subcellular localization

    • Capture z-stacks to fully document nucleolar localization

    • Apply deconvolution for enhanced resolution of nuclear structures

  • Controls and validation:

    • Include cells with EXOSC10 knockdown as specificity controls

    • Consider co-staining with nucleolar markers (e.g., fibrillarin) to confirm localization

    • Compare patterns between different EXOSC10 antibodies if available

Following these guidelines will facilitate reliable visualization of EXOSC10's subcellular distribution and enable accurate interpretation of immunofluorescence data.

How can I use EXOSC10 antibodies for effective immunoprecipitation experiments?

Immunoprecipitation (IP) of EXOSC10 requires careful optimization of lysis conditions, antibody amounts, and washing stringency:

  • Sample preparation:

    • Use MCF-7 cells as a validated positive control for IP experiments

    • Other suitable cell lines include 293T and HeLa cells

    • Prepare lysates in non-denaturing IP buffer (150 mM NaCl, 50 mM Tris pH 7.5, 1% NP-40 or 0.5% Triton X-100, protease inhibitors)

    • Clear lysates by centrifugation (14,000 × g, 10 minutes, 4°C)

  • Antibody amount optimization:

    • Use 0.5-4.0 μg of EXOSC10 antibody per 1.0-3.0 mg of total protein lysate

    • Pre-clear lysates with appropriate control beads to reduce non-specific binding

  • Immunoprecipitation methods:

    • Direct method: Conjugate antibody to activated beads (agarose, magnetic)

    • Indirect method: Use protein A/G beads to capture antibody-antigen complexes

    • For convenience, consider pre-conjugated antibodies like EXOSC10 Antibody (B-8) AC

  • Incubation and washing:

    • Incubate antibody-lysate mixture overnight at 4°C with gentle rotation

    • Wash beads 4-5 times with IP buffer containing reduced detergent concentration

    • Include a final wash with detergent-free buffer

  • Elution and analysis:

    • Elute immunoprecipitated proteins with SDS sample buffer

    • Analyze by Western blot using a different EXOSC10 antibody if possible

    • Expected result: Detection of EXOSC10 at approximately 100 kDa

  • Co-immunoprecipitation (Co-IP) considerations:

    • For RNA exosome complex studies, use gentler lysis conditions

    • Consider crosslinking approaches for transient interactions

    • Validate interactions with reciprocal Co-IP experiments

  • RNA immunoprecipitation (RIP) applications:

    • EXOSC10 antibodies have been validated for RIP applications

    • Include RNase inhibitors in all buffers

    • Consider crosslinking to preserve RNA-protein interactions

Optimizing these parameters will enhance the specificity and efficiency of EXOSC10 immunoprecipitation experiments.

How can EXOSC10 antibodies be used to study the RNA exosome complex and RNA degradation pathways?

EXOSC10 antibodies serve as powerful tools for investigating RNA exosome complex assembly, function, and RNA degradation pathways:

  • Exosome complex composition analysis:

    • Use co-immunoprecipitation with EXOSC10 antibodies to pull down the entire RNA exosome complex

    • Identify interacting components by mass spectrometry or Western blotting for known exosome subunits

    • Compare complex composition across different cellular compartments (nuclear vs. cytoplasmic)

  • RNA degradation pathway investigation:

    • Combine EXOSC10 antibody-based techniques with RNA stability assays

    • Use immunofluorescence to track EXOSC10 localization during RNA stress responses

    • Employ proximity ligation assays to study interactions with pathway components in situ

  • RNA-protein interaction studies:

    • Use EXOSC10 antibodies for RNA immunoprecipitation (RIP) experiments to identify direct RNA targets

    • Combine with high-throughput sequencing (RIP-seq) to generate comprehensive target profiles

    • Validate interactions with specific RNA candidates using targeted approaches

  • Functional inhibition studies:

    • Use EXOSC10 antibodies for intracellular delivery (transfection) to acutely inhibit function

    • Compare results with genetic knockdown/knockout approaches

    • Monitor effects on RNA processing, degradation, and cell viability

  • Post-translational modification analysis:

    • Immunoprecipitate EXOSC10 and analyze for phosphorylation, ubiquitination, or other modifications

    • Use modification-specific antibodies in combination with EXOSC10 pull-downs

    • Correlate modifications with changes in EXOSC10 activity or localization

  • Experimental design considerations:

    • Include appropriate controls (IgG, isotype controls)

    • Validate findings using multiple independent EXOSC10 antibodies

    • Consider cell type-specific differences in exosome complex composition and function

These approaches leverage EXOSC10 antibodies to dissect the molecular mechanisms of RNA processing and degradation pathways in normal cellular function and disease states.

What is the relationship between EXOSC10 antibodies and autoimmune diseases?

The relationship between EXOSC10 antibodies and autoimmune diseases represents an important area of research with both basic science and clinical implications:

  • Clinical associations:

    • Approximately 50% of patients with polymyositis/scleroderma (PM-Scl) overlap syndrome have autoantibodies against a nuclear/nucleolar particle termed PM-Scl

    • EXOSC10 (PM/Scl-100) is the 100 kDa antigen component recognized by most sera from PM-Scl patients

    • Autoantibodies against EXOSC10 have been associated with scleroderma and polymyositis

  • Autoantibody epitope mapping:

    • Commercial EXOSC10 antibodies can be used as tools to map autoantibody epitopes

    • Compare binding patterns between patient-derived autoantibodies and research antibodies

    • Identify immunodominant regions of EXOSC10 that trigger autoimmune responses

  • Pathogenic mechanisms investigation:

    • Use EXOSC10 antibodies to study how autoantibodies might disrupt normal cellular function

    • Investigate potential internalization of autoantibodies and their effects on RNA processing

    • Examine consequences of autoantibody binding on EXOSC10 enzymatic activity

  • Diagnostic development:

    • Commercial EXOSC10 antibodies can serve as standards for autoantibody detection assays

    • Develop quantitative assays using purified EXOSC10 and validated antibodies

    • Compare recognition patterns between different patient populations

  • Research applications in autoimmunity:

    • Use EXOSC10 antibodies as tools to study autoantigen presentation

    • Investigate cell-type specific expression and subcellular localization in affected tissues

    • Examine EXOSC10 expression under inflammatory conditions

  • Therapeutic implications:

    • Screen for compounds that might block autoantibody binding to EXOSC10

    • Test whether EXOSC10 antibodies can neutralize patient-derived autoantibodies

    • Investigate tolerance induction approaches using EXOSC10 epitopes

Understanding the relationship between EXOSC10 and autoimmune diseases may provide insights into disease mechanisms and potential therapeutic approaches for conditions like PM-Scl overlap syndrome.

How should I design experiments to study EXOSC10 isoforms using antibody-based techniques?

Designing experiments to study EXOSC10 isoforms requires careful antibody selection and validation strategies:

  • Isoform background information:

    • EXOSC10 has two documented isoforms arising from alternative splicing

    • These isoforms contribute to functional diversity and regulatory mechanisms within cells

  • Antibody epitope considerations:

    • Review the immunogen information for each antibody

    • Determine whether the antibody epitope lies within regions common to all isoforms or is isoform-specific

    • For example, check if the EXOSC10 fusion protein Ag1666 used for antibody generation spans regions unique to specific isoforms

  • Western blot optimization for isoform detection:

    • Use higher percentage gels (10-12%) to maximize resolution between isoforms

    • Extend running time to enhance separation of closely migrating bands

    • Consider using gradient gels for simultaneous visualization of all isoforms

    • Look for bands near the expected 100 kDa molecular weight with potential variants slightly above or below

  • Validation strategies:

    • Use isoform-specific siRNAs to selectively deplete individual variants

    • Employ recombinant expression of individual isoforms as positive controls

    • Analyze samples from different tissues known to express specific isoforms

  • RT-PCR correlation:

    • Combine antibody-based protein detection with RT-PCR analysis of isoform-specific transcripts

    • Correlate protein expression patterns with mRNA isoform levels

    • Design primers spanning exon junctions unique to each isoform

  • Functional studies:

    • Immunoprecipitate specific isoforms and analyze for differential interacting partners

    • Examine subcellular localization differences between isoforms using immunofluorescence

    • Investigate isoform-specific post-translational modifications

  • Experimental considerations:

    • Include appropriate loading controls

    • Consider using multiple antibodies targeting different epitopes

    • Be aware of potential cross-reactivity with related proteins

These methodological approaches will facilitate the accurate identification and characterization of EXOSC10 isoforms in various experimental systems.

What are common pitfalls in EXOSC10 antibody-based experiments and how can I avoid them?

Several common pitfalls can affect EXOSC10 antibody-based experiments. Here are strategies to recognize and overcome these challenges:

  • Non-specific binding issues:

    • Problem: High background or multiple unexpected bands in Western blots

    • Solution: Optimize blocking conditions (try 5% BSA instead of milk for phospho-specific detection)

    • Solution: Increase washing stringency and duration

    • Solution: Titrate antibody concentration carefully in the 1:500-1:2000 range

  • Poor nuclear protein extraction:

    • Problem: Weak or absent EXOSC10 signal despite proper antibody performance

    • Solution: Use specialized nuclear extraction buffers with higher salt concentrations

    • Solution: Include nuclease treatment to release chromatin-bound proteins

    • Solution: Verify extraction efficiency with nuclear marker controls

  • Inconsistent immunoprecipitation results:

    • Problem: Variable pull-down efficiency between experiments

    • Solution: Standardize lysate preparation and antibody amounts (0.5-4.0 μg for 1.0-3.0 mg protein)

    • Solution: Pre-clear lysates thoroughly to reduce non-specific binding

    • Solution: Consider using affinity-purified antibodies for cleaner results

  • Weak immunohistochemistry staining:

    • Problem: Faint or absent EXOSC10 signal in tissue sections

    • Solution: Optimize antigen retrieval using TE buffer pH 9.0 as primary recommendation

    • Solution: Try alternative retrieval with citrate buffer pH 6.0

    • Solution: Extend primary antibody incubation time or increase concentration

    • Solution: Utilize signal amplification systems

  • Poor reproducibility between antibody lots:

    • Problem: Results vary when switching to a new antibody lot

    • Solution: Validate each new lot against previous standards

    • Solution: Maintain positive control samples from successful experiments

    • Solution: Consider preparing larger stocks of validated antibody lots

  • Cross-reactivity with related proteins:

    • Problem: Detecting signals that may not represent EXOSC10

    • Solution: Include EXOSC10 knockdown/knockout controls

    • Solution: Compare results with multiple EXOSC10 antibodies targeting different epitopes

    • Solution: Verify molecular weight carefully (expected at approximately 100 kDa)

  • RNA-protein interaction disruption:

    • Problem: Failure to detect RNA-EXOSC10 interactions in RIP experiments

    • Solution: Include RNase inhibitors in all buffers

    • Solution: Consider crosslinking approaches to stabilize interactions

    • Solution: Optimize lysis conditions to preserve native complexes

Addressing these common pitfalls through methodical optimization will substantially improve the reliability and reproducibility of EXOSC10 antibody-based experiments.

How should I store and handle EXOSC10 antibodies to maintain optimal activity?

Proper storage and handling of EXOSC10 antibodies is crucial for maintaining their activity and ensuring consistent experimental results:

  • Storage conditions:

    • Store antibodies at -20°C for long-term stability

    • Antibodies in solution with 50% glycerol can be stored at -20°C without aliquoting

    • For antibodies without glycerol, prepare small aliquots to avoid repeated freeze-thaw cycles

    • Keep antibodies away from direct light, especially fluorophore-conjugated variants

  • Working solution preparation:

    • Centrifuge briefly prior to opening the vial to collect liquid

    • Prepare concentrated solutions in appropriate diluent (typically PBS with 0.02% sodium azide)

    • For long-term storage of working dilutions, add carrier protein (0.1-1% BSA)

    • Filter sterilize all diluents to prevent microbial contamination

  • Freeze-thaw considerations:

    • Minimize freeze-thaw cycles (ideally ≤5 total cycles)

    • Thaw antibodies on ice or at 4°C, never at high temperatures

    • Return to -20°C promptly after use

    • Consider storing small working aliquots at 4°C for up to 2 weeks if used frequently

  • Handling precautions:

    • Avoid introducing contaminants (use sterile pipette tips)

    • Never vortex antibodies vigorously (gentle mixing only)

    • Keep at appropriate temperature during experimental procedures

    • For HRP-conjugated antibodies, minimize exposure to light and oxidizing agents

  • Stability monitoring:

    • Include positive controls in each experiment to monitor antibody performance over time

    • Document lot numbers and performance characteristics

    • Test new lots against reference standards before use in critical experiments

  • Shipping and temporary storage:

    • If antibodies must be shipped, use dry ice for frozen antibodies

    • Upon receipt, promptly transfer to -20°C storage

    • For temporary laboratory use, keep antibodies in insulated containers with ice packs

  • Special considerations:

    • For concentrated antibody solutions (>0.5 mg/ml), watch for precipitation during thawing

    • Note that some EXOSC10 antibodies contain mercury compounds and require proper handling

    • Follow manufacturer's specific recommendations for each antibody formulation

Following these storage and handling guidelines will help maintain EXOSC10 antibody activity and ensure consistent experimental results.

What are the best cell and tissue models for studying EXOSC10 expression and function?

Selecting appropriate cell and tissue models is essential for successful EXOSC10 research. Here are validated models and considerations for their use:

  • Established cell line models:

    • 293T cells: Validated positive control for EXOSC10 expression

    • HeLa cells: Verified for Western blot applications

    • MCF-7 cells: Validated for immunoprecipitation experiments

    • NIH/3T3 cells: Confirmed for immunofluorescence applications

  • Cell model selection criteria:

    • Expression level: Choose models with detectable endogenous EXOSC10 expression

    • Subcellular localization: Consider cell types with prominent nucleoli for localization studies

    • Species compatibility: Ensure antibody reactivity with your species of interest (human and mouse are well-validated)

    • Transfection efficiency: For overexpression studies, select easily transfectable lines like 293T

  • Tissue models for immunohistochemistry:

    • Human breast cancer tissue: Validated positive control for IHC applications

    • Selection considerations:

      • Fixation quality: Optimally fixed tissues show better EXOSC10 immunoreactivity

      • Processing methods: Standard FFPE processing is compatible with EXOSC10 detection

      • Antigen retrieval requirements: TE buffer pH 9.0 or citrate buffer pH 6.0

  • Primary cell considerations:

    • Isolation methods should preserve nuclear integrity

    • Culture conditions may affect EXOSC10 expression levels

    • Growth phase can influence nucleolar size and EXOSC10 detection

    • Species differences may require antibody validation in each system

  • Model systems for functional studies:

    • Knockdown models: siRNA or shRNA targeting EXOSC10

    • Knockout systems: CRISPR/Cas9-mediated EXOSC10 deletion

    • Overexpression systems: EXOSC10-transfected 293T cells serve as positive controls

    • Tagged EXOSC10 expression: Consider effect of tags on protein localization and function

  • Disease model considerations:

    • Autoimmune disease models: Relevant for studying EXOSC10 in polymyositis/scleroderma

    • Cancer models: Examine EXOSC10 expression in various tumor types

    • RNA processing disorder models: May reveal functional aspects of EXOSC10

  • Comparative analysis approach:

    • Use multiple model systems in parallel to confirm findings

    • Compare EXOSC10 expression across tissue types and developmental stages

    • Consider species-specific differences in EXOSC10 function and regulation

Selecting appropriate models based on these criteria will enhance the relevance and reliability of EXOSC10 research findings.

What are the most important considerations for ensuring reproducible results with EXOSC10 antibodies?

Ensuring reproducible results with EXOSC10 antibodies requires attention to multiple factors throughout the experimental workflow:

  • Antibody selection and validation:

    • Choose antibodies with published validation data across multiple applications

    • Verify antibody specificity using knockout/knockdown controls

    • Maintain detailed records of antibody source, lot number, and performance characteristics

    • Use multiple independent antibodies targeting different EXOSC10 epitopes to confirm findings

  • Experimental design considerations:

    • Include appropriate positive controls (e.g., 293T cells, EXOSC10-transfected 293T, HeLa cells)

    • Incorporate negative controls (primary antibody omission, isotype controls, EXOSC10-depleted samples)

    • Standardize protocols with detailed SOPs for each application

    • Blind analysis when possible to reduce unconscious bias

  • Technical optimization:

    • Determine optimal antibody dilutions for each application (e.g., 1:500-1:2000 for WB, 1:20-1:200 for IHC/IF)

    • Optimize critical parameters like antigen retrieval methods for IHC (TE buffer pH 9.0 or citrate buffer pH 6.0)

    • Standardize lysate preparation and protein quantification methods

    • Use consistent detection systems across experiments

  • Data analysis and reporting:

    • Document complete experimental conditions including antibody concentrations

    • Report all optimization steps and troubleshooting approaches

    • Include representative images of positive and negative controls

    • Present quantitative data with appropriate statistical analysis

  • Antibody storage and handling:

    • Maintain consistent storage conditions (-20°C for long-term storage)

    • Minimize freeze-thaw cycles through proper aliquoting

    • Prepare working solutions with standardized diluents

    • Monitor antibody performance over time with reference standards

  • Cross-laboratory validation:

    • Exchange protocols and materials between laboratories

    • Implement consistent positive controls across research groups

    • Consider antibody validation consortia approaches

    • Document reagent sources, lot numbers, and handling procedures

By systematically addressing these considerations, researchers can substantially improve the reproducibility and reliability of experiments using EXOSC10 antibodies, leading to more robust and translatable research findings.

What emerging applications and future directions exist for EXOSC10 antibody research?

EXOSC10 antibody research is evolving rapidly, with several emerging applications and promising future directions:

  • Single-cell applications:

    • Adaptation of EXOSC10 antibody-based techniques for single-cell protein analysis

    • Integration with single-cell transcriptomics to correlate EXOSC10 protein levels with RNA profiles

    • Development of highly sensitive detection methods for limited sample inputs

    • Spatial transcriptomics approaches to map EXOSC10 distribution in complex tissues

  • Advanced imaging techniques:

    • Super-resolution microscopy to precisely map EXOSC10 within nucleolar subcompartments

    • Live-cell imaging using cell-permeable EXOSC10 antibody fragments

    • Correlative light and electron microscopy to visualize EXOSC10 at ultrastructural level

    • Expansion microscopy protocols optimized for nuclear proteins like EXOSC10

  • Therapeutic applications:

    • Development of antibody-based approaches to modulate EXOSC10 function

    • Exploration of EXOSC10 as a target in autoimmune diseases like polymyositis/scleroderma

    • Investigation of EXOSC10 inhibition as a potential cancer therapeutic strategy

    • Creation of antibody-based diagnostics for autoimmune conditions involving PM-Scl autoantibodies

  • Multi-omics integration:

    • Combination of EXOSC10 antibody-based proteomics with transcriptomics and epitranscriptomics

    • Systems biology approaches to understand EXOSC10's role in RNA metabolism networks

    • Computational modeling of EXOSC10 interaction networks based on antibody-derived data

    • Integration of EXOSC10 function with broader cellular stress response pathways

  • Technological innovations:

    • Development of proximity labeling approaches using EXOSC10 antibodies

    • Creation of split-antibody complementation systems for monitoring EXOSC10 interactions

    • Engineering of intrabodies targeting specific EXOSC10 domains for functional modulation

    • Application of antibody-based protein degradation technologies to EXOSC10 research

  • Biomarker development:

    • Refinement of EXOSC10 antibody-based assays for diagnostic applications

    • Correlation of EXOSC10 expression or localization patterns with disease progression

    • Development of multiplexed detection systems including EXOSC10 and related proteins

    • Integration with digital pathology platforms for automated analysis

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