SOX11 Antibody, HRP conjugated

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Description

SOX11 Antibody Overview

SOX11 is a transcription factor critical in embryonic development and tumorigenesis. Its expression is diagnostic in MCL (nearly 100% positivity in tissue microarray cases) and EOC, where it serves as a prognostic marker .

FeatureDetailsSources
TargetSOX11 transcription factor (46.7 kDa nuclear protein)
ApplicationsIHC, flow cytometry, Western blot, immunofluorescence
ConjugationTypically unconjugated; HRP-conjugated secondary antibodies used for detection
Key Antibody TypesMonoclonal (e.g., SOX11-C1), polyclonal (e.g., rabbit, sheep)

Monoclonal Antibodies

  • SOX11-C1 (Mouse IgG1):

    • Sensitivity/Specificity: Detects <1% SOX11-positive cells in flow cytometry; no cross-reactivity with normal B/T cells .

    • Applications: IHC, flow cytometry, Western blot .

    • Validation: Confirmed via mRNA expression in MCL cell lines and primary tumors .

Polyclonal Antibodies

  • Rabbit Anti-Human SOX11 (Bio-Rad):

    • Reactivity: Human SOX11; purified IgG for IHC and Western blot .

    • Applications: Detects SOX11 in paraffin-embedded tissues and nuclear/cytoplasmic extracts .

Diagnostic Applications

  • Mantle Cell Lymphoma (MCL):

    • SOX11-C1 antibody demonstrates 100% specificity in MCL diagnosis via IHC, outperforming polyclonal antibodies .

    • Flow cytometry detects rare MCL cells (≤1%) in blood samples .

  • Epithelial Ovarian Cancer (EOC):

    • SOX11 overexpression correlates with aggressive disease subtypes .

    • SOX11-C1 identifies EOC cell lines (e.g., OVCAR-3, TOV-112D) with strong nuclear staining .

Prognostic Insights

  • SOX11 Expression in MCL:

    • High SOX11 mRNA levels correlate with favorable prognosis in MCL .

    • SOX11-negative MCL cases exhibit promoter region hypomethylation but lack SOX11 expression, suggesting alternative regulatory mechanisms .

Western Blot Optimization

ParameterSOX11-C1 AntibodyRabbit Polyclonal (Bio-Rad)
Primary Dilution1:500–1:1,0001:500–1:1,000
DetectionHRP-conjugated secondaryHRP-conjugated secondary
Band Size~46.7 kDa (predicted)~70 kDa (observed in HeLa cells)

Example from R&D Systems (AF3976):

  • Sample: HeLa nuclear extracts.

  • Result: Clear band at ~70 kDa, confirming nuclear localization .

Immunohistochemistry (IHC)

TissueStaining PatternClinical Relevance
MCL TumorsBright nuclear stainingDiagnostic confirmation
Burkitt’s LymphomaModerate nuclear stainingDifferential diagnosis
Hairy Cell LeukemiaNegative (SOX11-C1)Exclusion of HCL in MCL

Challenges and Limitations

  • HRP Conjugation: Most SOX11 antibodies are unconjugated, requiring secondary antibodies for HRP-mediated detection .

  • Cross-Reactivity: Early polyclonal antibodies falsely detected SOX11 in hairy cell leukemias (HCL); SOX11-C1 resolved this .

  • Epigenetic Regulation: SOX11 promoter hypomethylation in MCL suggests complex transcriptional control beyond promoter methylation .

Future Directions

  • Flow Cytometry: SOX11-C1’s ability to detect rare MCL cells (<1%) in blood supports minimal residual disease monitoring .

  • Therapeutic Targeting: SOX11’s role in cell adhesion/migration pathways may inform targeted therapies in EOC and MCL .

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 the products within 1-3 business days of receiving your order. Delivery times may vary depending on the purchase method or location. Please consult your local distributor for specific delivery timeframes.
Synonyms
MRD27 antibody; SOX11 antibody; SOX11_HUMAN antibody; SRY (sex determining region Y) box 11 antibody; SRY related HMG box gene 11 antibody; SRY-box 11 antibody; Transcription factor SOX-11 antibody
Target Names
Uniprot No.

Target Background

Function
SOX11, a transcription factor, serves as a transcriptional activator. It binds cooperatively with POU3F2/BRN2 or POU3F1/OCT6 to gene promoters, thereby enhancing transcriptional activation. SOX11 acts as a transcriptional activator of TEAD2 by binding to its gene promoter and first intron. In collaboration with SOX4 and SOX12, SOX11 plays a redundant role in promoting cell survival within developing tissues such as the neural tube, branchial arches, and somites, contributing to organogenesis.
Gene References Into Functions
  1. Research findings demonstrate a critical role for SOX11 in normal kidney development, suggesting that variations in this gene may predispose individuals to CAKUT (Congenital Anomalies of the Kidney and Urinary Tract). PMID: 29459093
  2. Studies have shown a negative correlation between miR-223 and the mRNA level of SOX11 in clinical samples. These findings indicate that miR-223 is repressed and correlated with high-risk clinical features in MCL (Mantle Cell Lymphoma), suggesting its potential as a target for optimizing MCL management. PMID: 29158064
  3. SOX11 hypermethylation has been linked to adverse clinicopathological characteristics of prostate cancer. PMID: 29315911
  4. Research confirms the high specificity of SOX11 expression as a molecular marker for minimal residual disease in mantle cell lymphoma. PMID: 29520657
  5. Both SOX11 and TFE3 have been found to be overexpressed in solid-pseudopapillary neoplasms (SPNs) and may play a role in their pathogenesis. PMID: 29272888
  6. Studies investigated the association between miR-211-5p and SOX11 in relation to proliferation, viability, and invasion of human thyroid cancer (TC) cells. The findings revealed that miR-211-5p was upregulated and SOX11 was downregulated in TC tissues and cell lines. Inhibiting SOX11 suppressed the proliferation and invasion of TC cells, indicating that miR-211-5p plays a role in regulating these processes through targeting SOX11 expression. PMID: 28703321
  7. REVIEW: This review delves into the implications of SOX11 overexpression and frequent genetic lesions, particularly in cooperation with cyclin D1, in the pathogenesis of mantle cell lymphoma. PMID: 28466437
  8. Research sheds new light on the biology of mantle cell lymphoma (MCL), highlighting the role of SOX11 in exerting a functional effect through the repression of BCL6 transcription in MCL cells. PMID: 26710884
  9. Studies revealed, for the first time, that HIG-2 and SOX11 mutually co-regulate each other, and that knocking down either gene promotes increased proliferation in a non-synergistic manner in primary mantle cell lymphoma cells. PMID: 26757780
  10. Solid pseudopapillary neoplasms (SPNs) showed positive staining for SRY-related high-mobility group box 11 (SOX-11), transcription factor E3 (TFE3), and beta-catenin on cell blocks. PMID: 29045075
  11. SOX11 (sex determining region Y-box 11) was inversely expressed with miR-223-3p in ovarian cancer (OC) cell lines and tissue specimens. miR-223-3p mimic decreased SOX11 expression. Overexpressing SOX11 inhibited ovarian cancer cell proliferation and invasion, suggesting that miR-223-3p regulates OC cell proliferation and invasion by targeting SOX11 expression. PMID: 28587313
  12. Research demonstrates that SOX11 is a crucial regulator of multiple basal-like breast cancer phenotypes, including growth, migration, invasion, and expression of signature basal-like breast cancer genes. PMID: 26894864
  13. Findings suggest that SOX11 is a potential biomarker for ductal carcinoma in situ lesions containing cells with distinct biological features that are likely to progress to invasive breast cancer. PMID: 28707729
  14. SOX11 antigen can be reliably detected in decalcified tissue bone marrow tissue from mantle cell lymphoma patients. PMID: 27720733
  15. Results suggest that SOX11 promotes MCL homing and invasion, and increases CAM-DR (Chemoresistance) through the direct regulation of CXCR4 and FAK expression, as well as FAK/PI3K/AKT pathway activation, contributing to a more aggressive phenotype. PMID: 28533307
  16. Analysis of 28 other patients with CHARGE syndrome showed no SOX11 copy number changes or pathogenic sequence variants. This child's chromosomal abnormality is unique and represents the first co-occurrence of duplication 2p25 and clinical features of CHARGE syndrome. PMID: 26850571
  17. SOX11 immunohistochemistry could be a useful adjunct in distinguishing secondary cutaneous mantle cell lymphoma from primary cutaneous B-cell lymphomas. PMID: 26762898
  18. BLIMP1 and XBP1 expression was significantly more frequent in SOX11-negative cases than in SOX11-positive cases. PMID: 26360498
  19. SOX11 is a useful marker in differentiating cyclin D1-positive diffuse large B-cell lymphoma from mantle cell lymphoma. PMID: 22642745
  20. Deletion or mutation of SOX11 can result in a Coffin-Siris phenotype. PMID: 26543203
  21. SOX11's ability to reduce effector caspase activity is reflected in its capacity to reduce cell death following toxic insult. Notably, other SOX proteins also demonstrate the ability to reduce caspase-6 activity, but to a lesser extent than SOX11. PMID: 26505998
  22. Results show that in non-malignant cells, SOX11 is strongly marked by enrichment of H3K27me3, while tumors in general show promoter DNA methylation. PMID: 25880212
  23. This research explores the utility of mRNA analysis in defining SOX11 expression levels in mantle cell lymphoma and reactive lymph nodes. PMID: 25887497
  24. Implementing the detection of SOX11 in diagnostic flow cytometry would be beneficial for accurate and reliable diagnosis of MCL, especially for distinguishing cases of MCL and B-CLL/SLL with aberrant immune phenotypes. PMID: 25120048
  25. Research indicates that aberrant SOX11 gene promoter methylation may underlie its down-regulation in Gastric cancer. PMID: 25801783
  26. These findings suggest that differential miRNA expression in neurons could contribute to an altered function of the transcription factor SOX11 and other genes in the context of epilepsy. PMID: 25766675
  27. SOX11 overexpression suppresses PCa (Prostate Cancer) cell migration and invasion. These findings demonstrate that SOX11 could suppress cell proliferation, migration, and invasion of PCa in vitro. PMID: 25773392
  28. These results point to SOX11 as a possible biomarker that provides new biological insights, contributing to a better understanding of this pathology. PMID: 25608839
  29. De novo SOX11 mutations cause Coffin-Siris syndrome. Sox11 is expressed in fetal brain and adult brain and heart tissue. PMID: 24886874
  30. Currently, there are conflicting perspectives on the association of SOX11 gene expression and outcome in MCL, with some studies linking the lack of SOX11 expression to a good prognosis, while others find it associated with an adverse clinical course. PMID: 24736261
  31. SOX11 directly binds to genes in critical intracellular pathways controlling cell cycle and proliferation in MCL. PMID: 24681958
  32. High nuclear SOX11 expression has been associated with more prolonged overall survival. PMID: 25041022
  33. High SOX11 expression is associated with mantle cell lymphoma. PMID: 25056830
  34. PDGFA is a direct target gene of SOX11, upregulated in MCL cells, and its inhibition has been shown to impair SOX11-enhanced in vitro angiogenic effects on endothelial cells. PMID: 25092176
  35. Immunohistochemical (IHC) analysis revealed protein expression of all four genes. IHC staining for ADAM12, FAP, and WISP1 correlated with CDR (Complete Disease Response) and was higher, whereas SOX11 staining was lower in tumors with earlier recurrence following excision. PMID: 24402778
  36. Results indicate that SOX11 is a potential tumor suppressor and an independent positive prognostic factor in gastric cancer patients with less advanced clinicopathological features. PMID: 24604109
  37. This is the first report demonstrating that quantification of SOX11 can be used as a minimal residual disease marker, comparable to the key translocation t(11;14), in Mantle cell lymphoma. PMID: 24878000
  38. Patients with SOX11 expression showed a shorter TTT (Time to Treatment), and SOX11-expressing MCL patients exhibited a potentially more indolent course. However, further analyses within a larger cohort are warranted to confirm the independent diagnostic role of SOX11 expression. PMID: 23648671
  39. SOX11 is overexpressed in cutaneous malignant melanoma patients. PMID: 23867449
  40. This research characterizes new monoclonal anti-SOX11 antibodies, suitable for Western blot assay and immunohistochemistry. PMID: 24145648
  41. SOX11 is unable to differentiate mantle cell lymphoma from B-cell non-Hodgkin lymphomas. PMID: 24225745
  42. Statistically significant differences in SOX11 mRNA expression were observed between mantle cell lymphoma and other B-cell non-Hodgkin lymphomas. PMID: 22967417
  43. This study highlights the importance of Sox11 expression as a favorable prognosticator in glioblastomas. PMID: 23619925
  44. These findings confirm the significance of SOX11 as a diagnostic antigen in MCL, as 100% of tissue microarray (TMA) cases exhibit bright nuclear staining using the SOX11-C1 antibody in IHC-P (Immunohistochemistry). PMID: 22738398
  45. SOX11 contributes to tumor development by altering the terminal B-cell differentiation program of mantle cell lymphoma. PMID: 23321250
  46. Downregulation of SOX11 is associated with neurodevelopmental defects in trisomies 21. PMID: 22752091
  47. Significant differences were observed between the expression levels of SOX11 in patients with mantle cell lymphoma at diagnosis (n = 21) and in healthy donors (n = 18) (blood: P < 0.0001; marrow: P = 0.0001). PMID: 22827557
  48. Observations suggest that MCL with mutated IGHV, SOX11-negativity, and non-nodal presentation correspond to a subtype of the disease with more indolent behavior. PMID: 22915760
  49. High expression of SOX11 is associated with mantle cell lymphoma. PMID: 21479697
  50. In vitro studies demonstrated a SOX11-dependent regulation of mantle cell lymphoma-specific gene expression. PMID: 21880559

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Database Links

HGNC: 11191

OMIM: 600898

KEGG: hsa:6664

STRING: 9606.ENSP00000322568

UniGene: Hs.432638

Involvement In Disease
Mental retardation, autosomal dominant 27 (MRD27)
Subcellular Location
Nucleus.
Tissue Specificity
Expressed primarily in the brain and heart, with low expression in the kidney, pancreas and muscle.

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