CD44 Antibody

Code CSB-PA644696
Size US$297
  • Western blot analysis of extract from Hela cells using CD44 Antibody
  • Immunofluorescence staining of methanol-fixed NCI-h446 cells showing cytoplasmic staining using CD44 Antibody.
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Product Details

Full Product Name Rabbit anti-Homo sapiens (Human) CD44 Polyclonal antibody
Uniprot No. P16070
Target Names CD44
Alternative Names LHR antibody; BA-1 antibody; CD 44 antibody; CD44 antibody; CD44 antigen antibody; CD44 molecule (Indian blood group) antibody; CD44 molecule antibody; CD44_HUMAN antibody; CDw44 antibody; CDW44 antigen antibody; Cell surface glycoprotein CD44 antibody; chondroitin sulfate proteoglycan 8 antibody; CSPG8 antibody; ECMR-III antibody; Epican antibody; Extracellular matrix receptor III antibody; GP90 lymphocyte homing/adhesion receptor antibody; HCELL antibody; hematopoietic cell E- and L-selectin ligand antibody; Heparan sulfate proteoglycan antibody; Hermes antigen antibody; homing function and Indian blood group system antibody; HSA antibody; HUTCH-I antibody; HUTCH1 antibody; HUTCHI antibody; Hyaluronate receptor antibody; IN antibody; INLU-related p80 Glycoprotein antibody; MC56 antibody; MDU2 antibody; MDU3 antibody; MGC10468 antibody; MIC4 antibody; MUTCH I antibody; MUTCH1 antibody; PGP-1 antibody; PGP-I antibody; PGP1 antibody; Phagocytic glycoprotein 1 antibody; Phagocytic glycoprotein I antibody; Soluble CD44 antibody
Raised in Rabbit
Species Reactivity Human,Rat
Immunogen Peptide sequence around aa.734~738(Q-N-V-D-M) derived from Human CD44.
Immunogen Species Homo sapiens (Human)
Clonality Polyclonal
Purification Method Antibodies were produced by immunizing rabbits with synthetic peptide and KLH conjugates. Antibodies were purified by affinity-chromatography using epitope-specific peptide.
Concentration It differs from different batches. Please contact us to confirm it.
Form Supplied at 1.0mg/mL in phosphate buffered saline (without Mg2+ and Ca2+), pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol.
Tested Applications ELISA,WB,IF
Recommended Dilution
Application Recommended Dilution
WB 1:500-1:1000
IF 1:100-1:200
Protocols ELISA Protocol
Western Blotting(WB) Protocol
Immunofluorescence (IF) Protocol
Troubleshooting and FAQs Antibody FAQs
Storage Upon receipt, store at -20°C or -80°C. Avoid repeated freeze.
Lead Time Basically, we can dispatch the products out in 1-3 working days after receiving your orders. Delivery time maybe differs from different purchasing way or location, please kindly consult your local distributors for specific delivery time.

Target Data

Function Receptor for hyaluronic acid (HA). Mediates cell-cell and cell-matrix interactions through its affinity for HA, and possibly also through its affinity for other ligands such as osteopontin, collagens, and matrix metalloproteinases (MMPs). Adhesion with HA plays an important role in cell migration, tumor growth and progression. In cancer cells, may play an important role in invadopodia formation. Also involved in lymphocyte activation, recirculation and homing, and in hematopoiesis. Altered expression or dysfunction causes numerous pathogenic phenotypes. Great protein heterogeneity due to numerous alternative splicing and post-translational modification events. Receptor for LGALS9; the interaction enhances binding of SMAD3 to the FOXP3 promoter, leading to up-regulation of FOXP3 expression and increased induced regulatory T (iTreg) cell stability and suppressive function (By similarity).
Gene References into Functions
  1. Interleukin-4 induces a CD44high /CD49bhigh PC3 subpopulation with tumor-initiating characteristics. PMID: 29236307
  2. we demonstrated that miR711mediated downregulation of CD44 expression inhibited EMT of gastric cancer cells in vitro and in vivo by downregulating vimentin protein expression and upregulating Ecadherin protein expression through transfection, qRTPCR and western blotting. PMID: 30226620
  3. Expression levels of MACC1, CD44, Twist1, and KiSS-1 are related to duration of overall survival among patients with colonic adenocarcinoma. PMID: 30021598
  4. miR-218-5p was downregulated in invasion front cells and negatively regulates oral squamous cell carcinoma invasiveness by targeting the CD44-ROCK pathway. PMID: 29990854
  5. our study demonstrated that miR-520b inhibits the malignancy of HNC through regulation of cancer stemness conversion by targeting CD44. PMID: 28515423
  6. The work identified two new host factors that may act as receptors for P. falciparum during invasion: CD44 and CD55. (Review) PMID: 29249333
  7. Reports indicate that high CD44 expression in ascites tumor cells (ATC) correlates with CSC and EMT phenotype, both regulated by the tumor microenvironment through several signaling pathways, including the TGF-beta signaling pathway. PMID: 30142697
  8. Data identified Twist1 and CD44 as novel REST targeted genes and provide new insight into the epigenetic regulation of Twist1 and CD44 by REST. PMID: 28256535
  9. Data show increased CD44 levels in ovarian cancer patient samples correlated with enhanced expression of the mesenchymal spliced variant CD44s (standard) and a concurrent decrease in the epithelial variants (CD44v). Moreover, CD44s was upregulated upon TGFbeta1-induced EMT, which was mediated through the downregulation of the splicing factor, ESRP1. Overexpression of CD44s induced EMT, invasion, and chemoresistance. PMID: 29130517
  10. The current evidence suggests that CD44 is an efficient prognostic factor in pancreatic cancer. PMID: 29683068
  11. the CD44-NRF2 axis might be a promising therapeutic target for the control of stress resistance and survival of CD44(high) CSC population within breast tumors. PMID: 29729523
  12. These results reveal a novel positive feedback loop involving CD44S and YAP1, in which CD44S functions as both an upstream regulator and a downstream effector of YAP1 in hepatocellular carcinoma. PMID: 29649630
  13. CHI3L1 expression is a novel biomarker for the prognosis of gastric cancer and these findings have thus identified CHI3L1/CD44 axis as a vital pathway and potential therapeutic target in gastric cancer . PMID: 30165890
  14. The selective binding of HA-CH-NP/siRNA to CD44-positive tumor endothelial cells. PMID: 29890852
  15. Results showed that the expression of IGF1R appears to be highly correlated with the expression of ABCG2 in osteosarcoma and with the expression of CD44 in osteosarcoma patients under age of 10. PMID: 29892839
  16. CD44 Polymorphisms are associated with Gastric Cancer. PMID: 29802692
  17. verification of the presence of stem cell-like cells in the epithelial component through the immunopositivity to Oct-4 and CD44 in benign odontogenic lesions of variable biological behaviors PMID: 29971493
  18. The genotypes CT, CT+TT, TT, and allele T in rs13347 of CD44 may be risk factors for breast cancer. PMID: 29748526
  19. Peripheral blood lymphocyte subsets in patients with lung cancer are different from those in healthy people, and circulating CD44+ and CD54+ lymphocytes seem to be a promising criterion to predict survival in lung cancer patients undergoing chemotherapy PMID: 29148014
  20. The minority of cancer stem cells would not be detected by immunohistochemistry using panCD44. PMID: 29682524
  21. CD44 regulated TLR2 responses in human macrophages, whereby a reduction in CD44 levels or engagement of CD44 by its ligand (HA) or a CD44-specific Ab reduced NF-kappaB translocation and downstream proinflammatory cytokine production. PMID: 29196459
  22. Our results suggested that CD44 expression could be used as a marker for the prediction of gastric cancer development, particularly in patients with precancerous gastric lesions carrying AG or GG, who were selected to surveillance follow-up for gastric cancer prevention. PMID: 29445738
  23. CD44 polymorphism rs13347 acts as a risk factor for cancer, especially in Chinese, while the minor allele of polymorphism rs11821102 may be associated with a decreased susceptibility to cancer PMID: 28000766
  24. ntermediate Molecular Mass Hyaluronan and CD44 interactions on PMNs potently elicit F-actin cytoskeleton polymerization and p38- and ERK1/2-MAPK phosphorylation to enhance PMN function. PMID: 28730511
  25. CD44v9 in tumor specimens has potential as a novel indicator for identifying a cisplatin-chemoresistant population among urothelial cancer patients. CD44v8-10 contributes to reactive oxygen species defenses, which are involved in chemoresistance, by promoting the function of xCT, which adjusts the synthesis of glutathione. PMID: 29385995
  26. CD44 standard isoform was especially upregulated after high-dose X-ray irradiation. PMID: 29106581
  27. Upregulated miR-373 levels and simultaneously downregulated levels of CD44 and E-cadherin were noted in this study. PMID: 29307338
  28. MiRNA-34a suppresses invasion and metastatic in esophageal squamous cell carcinoma by regulating CD44. PMID: 29094237
  29. This study using syngeneic mouse models, which better model the disease in humans than conventional xenografts, suggests that NIR-PIT with anti-CD44-IR700 is a potential candidate for the treatment of Oral cavity squamous cell carcinoma PMID: 28923838
  30. miR214 represses endogenous CD44 expression by targeting the 3'untranslated region in HeLa, Raji and Jurkat cells. PMID: 29138813
  31. This analysis indicated that corilagin is mainly involved in the glycolysis pathway. Seahorse XF96 extracellular acidification rate analysis confirmed that corilagin inhibited glycolysis by downregulation of CD44 and STAT3 PMID: 28791374
  32. an important role for HYAL2 in CD44 alternative splicing. PMID: 29162741
  33. CD146 suppresses BC progression as a target of CD44-downstream signaling PMID: 29121955
  34. based on our data, the markers CD44 and CD24 do not reflect the features of CSC and unfavorable prognosis and do not clarify the role and clinical significance of the immunophenotype CD44+/CD24-. PMID: 28967636
  35. CD44s levels correlate with EGFR signature and predict poor prognosis in glioblastomas. PMID: 28716909
  36. This study demonstrated that expression of CD44S and CD44 splice variants CD44V3, CD44V6, and CD44V10 was significantly higher in AD patients compared to non-AD controls PMID: 28550248
  37. Network analysis of overlapping genes revealed the effects on tubulins (Tubb2a, Tubb3, Tubb4b), Nfe2l2, S100a4, Cd44, and Nfkb2, all of which are linked to TBI-relevant outcomes, including epileptogenesis and tissue repair PMID: 27530814
  38. In obese patients, hepatic CD44 was strongly upregulated in NASH patients (p=0.0008) and correlated with NAFLD activity score (NAS) (p=0.001), ballooning (p=0.003), alanine transaminase (p=0.005) and hepatic CCL2 (p<0.001) and macrophage marker CD68 (p<0.001) expression. Correction of NASH was associated with a strong decrease in liver CD44(+) cells. PMID: 28323124
  39. These findings suggest that CD44v and CD44s cells play differently important roles in the progression and metastasis of GBC and the isoform switch triggers epithelial-mesenchymal transition PMID: 28677740
  40. Results suggest significant role of CD44 variants (rs13347, rs187115 and rs11821102) in modulating individual's cancer susceptibility in Asians (meta-analysis). PMID: 27521214
  41. CD44v9 may be a good biomarker for prognosis prediction and for chemoprevention or biomarker-driven therapies only for Early Gastric Cancer, and it appeared to be associated with lymph node metastasis PMID: 25779358
  42. Tunicamycin inhibited CD44s overexpression-associated cell migration. PMID: 29377347
  43. Osteopontin and CD44 play important roles in the development and progression of meningioma and can be used as prognostic markers for tumor recurrence and progression as well as therapeutic targets for the development of new drugs. PMID: 29504367
  44. CD24 and CD44 are upregulated in human pancreatic cancer compared to chronic pancreatitis and may be related to the development of pancreatic cancer. PMID: 28659655
  45. our study results showed that CD44v6 is an important regulator of GC tumorigenesis, angiogenesis, and survival in an IL-6 mediated, pSTAT3-dependent manner PMID: 28507278
  46. expressed by rheumatoid synovial fibroblasts in a MIF allele-dependent fashion and undergoes functional regulation and activation by autocrine/paracrine MIF PMID: 27872288
  47. Circulating tumor cells expressing cytokeratin and tumor-initiating cell markers, including ALDH, CD133, and CD44, were identified in patients with pancreatic adenocarcinoma. These TIC-like CTCs were associated with poor prognosis after surgical resection and with an increased incidence of tumor recurrence PMID: 27789528
  48. High CD44 expression is associated with renal cell carcinoma. PMID: 27588469
  49. FAM83D promotes HCC recurrence by promoting CD44 expression and CD44+ CSCs malignancy. PMID: 27769048
  50. Intraperitoneal enrichment of cancer stem-like cells, from ovarian cancer cell lines or primary ovarian tumor, provides a rational approach for cancer stem-like cell isolation and characterization using CD44 and prominin-1(CD133) as selection markers. PMID: 27655682
  51. D44 and RHOA are required for CFL1 phosphorylation and cell migration induced by CD74 in breast cancer cells. PMID: 27626171
  52. This review will summarize the biology and diagnostic implication of CD44 and HA as well as the interaction of both molecules in MPM that will demonstrate their potential as biomarkers. Augmentation of the current markers in MPM may lead to an earlier diagnosis and management of this disease. [review] PMID: 28403901
  53. CD44 and CD24 collaboratively drive the reprogramming of nasopharyngeal carcinoma cells through STAT3-mediated stemness and epithelial-mesenchymal transition activation PMID: 27521216
  54. High CD44 expression is associated with high c-MET expression, p16-negative tumors, and EGFR-positive tumors. The combination of these markers predicts for poor prognosis in HNSCC patients treated with chemoradiation. PMID: 27442811
  55. our meta-analysis demonstrates that CD44 polymorphisms may not represent risk factors for cancer. PMID: 27738347
  56. that ITGbeta3 and CD44 expression levels determine whether OPN-a inhibits or enhances growth in lung cancer cells. PMID: 27487131
  57. CD44 and ALDH are the most specific biomarkers to detect and isolate tumorigenic and chemoresistant gastric CSCs in noncardia gastric carcinomas independently of the histologic classification of the tumor. PMID: 27620279
  58. Malignant transformation of mucinous tumors is associated with changes in CD44 expression, with low expression level being a prognostic factor in ovarian mucinous carcinomas. PMID: 29374695
  59. the majority of cells within the tumor appears to express predominantly TAp63 isoform. While DeltaNp63 exerts its effects by regulating a PI3K/CD44v6 pathway. PMID: 27494839
  60. Mobilization of the CD44/CD105 positive synovial cells seems to play a role in the genesis of hip osteoarthritis. PMID: 27803113
  61. Data suggest that CD44 antigen expression might be an indicative and descriptive marker of epithelial-mesenchymal transition. PMID: 27815484
  62. Data indicate the mechanism and energetics of F-19848A binding to hyaluronan receptor CD44 using molecular simulation. PMID: 27342250
  63. CD133(+) CD44(+) CD54(+) cellular subpopulation of circulating tumor cells has a prognostic value in colorectal cancer patients with liver metastasis, especially in the survival of CRC patients with liver metastasis who did not undergo surgical treatment for metastasis. PMID: 29105339
  64. Flat Intraurothelial Neoplasia Exhibiting Diffuse Immunoreactivity for CD44 and Cytokeratin 5 (Urothelial Stem Cell/Basal Cell Markers): A Variant of Intraurothelial Neoplasia Commonly Associated With Muscle-invasive Urothelial Carcinoma PMID: 26990746
  65. inhibition of autophagy led to the decrease in stemness, restoration of mitochondrial proteins and reduced expression of CD44, ABCB1 and ADAM17 PMID: 29171106
  66. PDAC cells expressing high levels of CD44s with a mesenchymal-like phenotype were highly invasive. PMID: 27267855
  67. The differences in PD-L1 expression between CD44(+) and CD44(-) cells are biologically and clinically relevant. PMID: 26864211
  68. CD44v6 membranous staining can be useful for differentiating malignant from benign endometrial tissue. PMID: 28620808
  69. An SNP in the CD44 gene (SNP(rs187115)) that independently associates with allelic differences in prognosis in all study cohorts. PMID: 27283965
  70. CD44 and CD24 were not found to predict overall survival or disease-free survival in colonic liver metastases. PMID: 29277789
  71. miR-145 targeting of CD44 plays critical roles in the regulation of tumor growth and chemo-resistance in gastric cancer. PMID: 28428713
  72. High expression of CD244 and receptor activation with its endogenous ligand CD48 inhibited starvation- and rapamycin-induced autophagy by promoting association of CD244 with the autophagy complex proteins Vps34 and Beclin-1. The association of CD244 with this complex reduced Vps34 lipid kinase activity. PMID: 27345162
  73. The results of this study High levels of CD44 and DNA-PK are associated with a better survival and better response to radiotherapy and temozolomide. PMID: 28070830
  74. Knockdown of CD44 reduced the protein level of xCT, a cystine transporter, and increased oxidative stress. However, an increase in GSH was also observed and was associated with enhanced chemoresistance in CD44-knockdown cells. Increased GSH was mediated by the Nrf2/AP-1-induced upregulation of GCLC, a subunit of the enzyme catalyzing GSH synthesis PMID: 28185919
  75. CD44 and FGFR2 maintain stemness in gastric cancer by differentially regulating c-Myc transcription. PMID: 27107424
  76. Study demonstrated that WNT5A signaling can suppress CD44 protein expression and signaling. CD44 knockdown reduces the level of pAKT, migration and invasion of breast cancer cell. PMID: 27623766
  77. assembly of a sialyllactosaminyl-decorated CD44s glycovariant is a conserved feature of human mesenchymal stem cells derived from adipose tissue and marrow. PMID: 27888602
  78. MUC1-C binds directly with CD44v and in turn promotes stability of xCT in the cell membrane PMID: 26930718
  79. Nimbolide reduces CD44 positive cell population and induces mitochondrial apoptosis in pancreatic ductal adenocarcinoma cells. PMID: 29107110
  80. Together, these data indicate that different mechanisms govern the flow response across GSCs, but that within a single patient, there are subpopulations of GSCs that respond to flow via either CD44- or CXCR4-CXCL12 mechanisms. PMID: 27775742
  81. Our data suggest an important role of beta2-AR/STAT3/miR-373 signaling on the transformation of gastric cancer cells. PMID: 27512943
  82. High CD44 expression is associated with Malignant Pleural Mesothelioma. PMID: 27867002
  83. the survival outcomes of genetically induced glioma-bearing mice and of high-grade human glioma patients are biphasically correlated with CD44 level, with the poorest outcomes occurring at intermediate levels. PMID: 28052252
  84. The rates of CD44st and MMP2 expression were higher in squamous cell carcinomas than in adenocarcinomas, were closely associated with lymph node metastasis and TNM stage, and affected patients' prognoses. PMID: 28365695
  85. suggest that upregulation of NG2/CSPG4 rather than changes in CD44 or Ki-67 expression is associated with low overall survival in glioblastoma multiforme patients, supporting NG2/CSPG4 as a potential prognostic marker in glioblastoma PMID: 28945172
  86. Suggest that CD44-positivity might be a candidate tumor stem cell marker in intrahepatic cholangiocarcinoma and a prognostic indicator. PMID: 28982889
  87. Mechanistically, CD44v interacts with and stabilizes xCT and thereby promotes the uptake of cysteine for glutathione synthesis and stimulates side-population cell enrichment. PMID: 27279909
  88. These tumor samples express CD44 protein at low rather than high levels. There is no correlation between CLDN3 gene expression and protein expression in these CPTAC samples; hence, the claudin-low subtype defined by gene expression is not the same group of tumors as that defined by low expression of CLDN3 protein. PMID: 28287265
  89. this study shows that genkwadaphnin promotes leukocyte migration by increasing CD44 expression via PKD1/NF-kappaB signaling pathway PMID: 26987843
  90. High CD44 expression is associated with high grade glioma. PMID: 27527869
  91. this meta-analysis suggested that CD44v6 is an efficient prognostic factor in colorectal cancer PMID: 28030817
  92. CNS disease was associated with enhanced expression of cytoplasmic and membranous ITGA10 and nuclear PTEN (P < 0.0005, P = 0.002, P = 0.024, respectively). sCNSL presented decreased membranous CD44 and nuclear and cytoplasmic cadherin-11 expressions (P = 0.001, P = 0.006, P = 0.048, respectively). In PCNSL lactoferrin expression was upregulated (P < 0.0005). PMID: 28854563
  93. In clinical specimens of breast cancer, authors established that the expression of CD44s and HAS2 was positively correlated. Results establish a positive feedback mechanism that sustains PI3K/Akt signaling in tumor cells, further illuminating the nearly universal role of this pathway in cancer cell survival. PMID: 28533273
  94. In regulation of tumour cells with high CD44 expression. PMID: 28414310
  95. ZEB1-induced epithelial-to-mesenchymal transition and associated molecular changes in ESRP1 and CD44 contribute to early pathogenesis and metastatic potential in established lung cancer PMID: 27500490
  96. In conclusion, CD44 and Oct3/4 overexpression may imply malignant transformation of pancreatic ducts and could help pathologists make a more accurate diagnosis and decision on clear surgical margins. PMID: 28464601
  97. Expression analyses of miR-383 in PCa clinical tissues established that low miR-383 expression is associated with poor prognosis. Functional data suggest that miR-383 regulates PCa tumor-initiating/stem-like cells via CD44 regulation. Ectopic expression of miR-383 inhibited tumor-initiating capacity of CD44+ PCa cells PMID: 27893706
  98. our data demonstrated that FOXO3 is essential for CD44 expression and the properties of cancer stem cells (CSCs). Our data also indicated that patients with high FOXO3 activation signatures had poor prognoses. This evidence suggested that cGMP induction and FOXO3 inhibition could be ideal candidates for pancreatic CSC PMID: 27893718
  99. CD44, both a functional biomarker and therapeutic target, promoted CD133(+) CD44(+) lung cancer stem cell-like cells metastasis by Wnt/beta-catenin-FoxM1-Twist signaling. PMID: 26621583
  100. CD133 and CD44 in glioblastoma stem cells have roles in cell proliferation, phenotype stability and intra-tumor heterogeneity PMID: 28241049

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Subcellular Location Cell membrane, Single-pass type I membrane protein
Tissue Specificity Isoform 10 (epithelial isoform) is expressed by cells of epithelium and highly expressed by carcinomas. Expression is repressed in neuroblastoma cells.
Database Links

HGNC: 1681

OMIM: 107269

KEGG: hsa:960

STRING: 9606.ENSP00000398632

UniGene: Hs.502328

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