DPP4 Antibody

Code CSB-PA06229A0Rb
Size US$299Purchase it in Cusabio online store
(only available for customers from the US)
  • Western Blot
    Positive WB detected in: Rat kidney tissue
    All lanes: DPP4 antibody at 2.8μg/ml
    Goat polyclonal to rabbit IgG at 1/50000 dilution
    Predicted band size: 89 kDa
    Observed band size: 89 kDa

  • Immunohistochemistry of paraffin-embedded human prostate tissue using CSB-PA06229A0Rb at dilution of 1:100

  • Immunohistochemistry of paraffin-embedded human small intestine tissue using CSB-PA06229A0Rb at dilution of 1:100

  • Immunofluorescent analysis of PC-3 cells using CSB-PA06229A0Rb at dilution of 1:100 and Alexa Fluor 488-congugated AffiniPure Goat Anti-Rabbit IgG(H+L)

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Product Details

Full Product Name Rabbit anti-Homo sapiens (Human) DPP4 Polyclonal antibody
Uniprot No. P27487
Target Names DPP4
Alternative Names ADABP antibody; ADCP-2 antibody; ADCP2 antibody; Adenosine deaminase complexing protein 2 antibody; CD26 antibody; Dipeptidyl peptidase 4 antibody; Dipeptidyl peptidase 4 soluble form antibody; Dipeptidyl peptidase IV antibody; Dipeptidyl peptidase IV membrane form antibody; Dipeptidyl peptidase IV soluble form antibody; DPP IV antibody; DPP4 antibody; DPP4_HUMAN antibody; DPPIV antibody; T-cell activation antigen CD26 antibody; TP103 antibody
Raised in Rabbit
Species Reactivity Human, Rat
Immunogen Recombinant Human Dipeptidyl peptidase 4 protein (473-588AA)
Immunogen Species Homo sapiens (Human)
Conjugate Non-conjugated
Clonality Polyclonal
Isotype IgG
Purification Method >95%, Protein G purified
Concentration It differs from different batches. Please contact us to confirm it.
Buffer Preservative: 0.03% Proclin 300
Constituents: 50% Glycerol, 0.01M PBS, pH 7.4
Form Liquid
Tested Applications ELISA, WB, IHC, IF
Recommended Dilution
Application Recommended Dilution
WB 1:500-1:5000
IHC 1:20-1:200
IF 1:50-1:200
Protocols ELISA Protocol
Western Blotting(WB) Protocol
Immunohistochemistry (IHC) 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 Cell surface glycoprotein receptor involved in the costimulatory signal essential for T-cell receptor (TCR)-mediated T-cell activation. Acts as a positive regulator of T-cell coactivation, by binding at least ADA, CAV1, IGF2R, and PTPRC. Its binding to CAV1 and CARD11 induces T-cell proliferation and NF-kappa-B activation in a T-cell receptor/CD3-dependent manner. Its interaction with ADA also regulates lymphocyte-epithelial cell adhesion. In association with FAP is involved in the pericellular proteolysis of the extracellular matrix (ECM), the migration and invasion of endothelial cells into the ECM. May be involved in the promotion of lymphatic endothelial cells adhesion, migration and tube formation. When overexpressed, enhanced cell proliferation, a process inhibited by GPC3. Acts also as a serine exopeptidase with a dipeptidyl peptidase activity that regulates various physiological processes by cleaving peptides in the circulation, including many chemokines, mitogenic growth factors, neuropeptides and peptide hormones. Removes N-terminal dipeptides sequentially from polypeptides having unsubstituted N-termini provided that the penultimate residue is proline.
Gene References into Functions
  1. Our results showed 14% inferior plasma DPP-4 activity in adolescent idiopathic scoliosis (AIS) patients when compared to healthy controls . Similarly, osteoblasts derived from AIS subjects had lower DPP-4 gene and protein expression than controls by 90.5% and 57.1% respectively (P < 0.009). DPP-4 expression was regulated in a different manner in osteoblasts isolated from AIS participants compared to controls. PMID: 28600546
  2. Here we review the recent advances in identifying the cellular sources of both circulating and membrane-bound DPP4 important for cleavage of the incretin hormones and regulation of glucose and lipoprotein metabolism. PMID: 29412815
  3. DPP4 activity when compared to healthy controls. Analysis of Dpp4-Liv-Tg mice revealed elevated systemic DPP4 activity and diminished active GLP-1 levels. PMID: 29031724
  4. DPP4 was not different in this group of polycystic ovarian syndrome patients. However, a relationship between DPP4 and markers of insulin resistance were found. PMID: 29680519
  5. The analysis of their molecular properties allowed the design of a multiple linear regression model for activity prediction. Their docking analysis allowed visualization of the interactions between the pharmacophore regions and hDDP-IV. PMID: 28027711
  6. The level of myocardial CD26 expression might be a predictive marker of prognosis in patients with heart failure. PMID: 30369565
  7. Our study showed that complement was excessively activated in MERS-CoV-infected hDPP4-Tg mice through observations of increased concentrations of the C5a and C5b-9 complement activation products in sera and lung tissues, respectively. PMID: 29691378
  8. API was demonstrated to inhibit the migration/invasion of NSCLC cells harboring different EGFR statuses via suppressing the Snail/Slug-mediated EMT..CD26 may be a useful biomarker for predicting NSCLC progression. API effectively suppressed lung cancer progression by targeting the CD26-Akt-Snail/Slug signaling pathway PMID: 30134935
  9. hepatocyte DPP4 promotes visceral adipose tissue inflammation and insulin resistance in obesity, and targeting this pathway may have metabolic benefits that are distinct from those observed with oral DPP4 inhibitors PMID: 29562231
  10. this study shows that CD26 expression is down-regulated on CD8(+) T cells in patients with Hashimoto's thyroiditis PMID: 29175506
  11. Several isoforms of DPP-IV and FAP are present in glioblastoma tissue. The absence of alkaline isoforms of both enzymes in glioma cell lines however suggests that isoforms from other, most likely stromal, cell types contribute to the overall pattern seen in glioblastoma tissues. PMID: 28452380
  12. Data suggest that dipeptidyl peptidase 4 (DPPIV) gene polymorphism influences disease susceptibility and acute pancreatitis (AP) severity. PMID: 28902797
  13. High levels of DPP4a are independently associated with an increased rate of no-reflow events. PMID: 28000723
  14. DPP-4 activity and GLP-1total levels were higher in patients with microvascular complications associated with T2DM. Contrary to expectations, no negative correlation was seen between GLP-1 and DDP-4 levels. This result suggests the possible inefficacy of DDP-4 activity as a marker to predict in vivo degradation of endogenous GLP-1. PMID: 29061224
  15. The study showed that DPP-4 inhibitor use does not modify the risk of bone fracture compared with placebo or other anti-diabetic medications in patients with type 2 diabetes. PMID: 27384445
  16. A close connection between SerpinB3 and DPPPIV has been identified, but further studies are required to better understand the mechanism by which these proteins communicate and exert metabolic effects in hepatocellular carcinoma. PMID: 29524519
  17. There is a U-shaped association of serum DPP-IV with mortality in chronic heart failure patients. PMID: 28318663
  18. Levels of DPPIV enzyme activity in sera of patients with psoriatic pruritus were significantly increased compared to those of healthy controls. PMID: 28365081
  19. These findings implicate that DPP4 plays a role in the aggressiveness of UCs, and can serve as a novel prognostic marker and therapeutic target. PMID: 27936466
  20. Data suggest that up-regulation of serum DPP4 activity is associated with severity of diabetic nephropathy/renal insufficiency/albuminuria in subjects with type 1 diabetes. PMID: 27625045
  21. DPPIV overexpression altered cell morphology and stimulated cell proliferation, invasion and tumorigenesis in endometrial carcinoma cells. PMID: 28060721
  22. MERS-CoV S protein binds to DPP4 to suppress macrophage activation via induction of IRAK-M, PPARgamma and the immunosuppressive cytokine IL-10. PMID: 28118607
  23. DPP4a may be associated with future major adverse cardiac or cerebrovascular events in diabetic STEMI patients. PMID: 28587613
  24. DPP4 inhibitors have been demonstrated to be beneficial in the improvement of endothelial homeostasis. PMID: 28440488
  25. As for 18Lin(-), CD34(-) HSCs are characterized by low expression of the tetraspanin CD9, which promotes homing, and high expression of the peptidase CD26, which inhibits homing. PMID: 28687990
  26. suggests that DPP4 T-molecules have modified binding and functions compared with their FL counterparts and may serve regulatory roles in normal and malignant hematopoiesis PMID: 28344320
  27. Analysis of both the structures and inhibitory activities suggests that the binding of the trifluorophenyl moiety in the S1 pocket and the piperazine-2-one moiety have hydrophobic interactions with Phe357 in the S2 extensive subsite, and that the multiple hydrogen bonds made by the (R)-beta-amine group in the S2 pocket and the contacts made by the (R)-tert-butyl group with Arg125 contribute to the high potency observed... PMID: 29061303
  28. the selective expression of DPP4 on the surface of senescent cells enables their preferential elimination. PMID: 28877934
  29. Study shows that increased DPP4 activities are independently associated with mild cognitive impairment in elderly patients with type 2 diabetes. PMID: 27371673
  30. A common variant, i.e., single nucleotide polymorphism rs6741949, in the DPP4 gene interacts with body adiposity and negatively affects glucose-stimulated GLP-1 levels, insulin secretion, and glucose tolerance. PMID: 28750074
  31. CUX-1 overexpression enhanced TNF- production on sCD26/LPS stimulation, while CUX-1 depletion had no effect. Neither CUX-1 overexpression nor CUX-1 depletion had an effect on IL-6 stimulation. These results are discussed in the context of a model that describes the mechanisms by which stimulation of monocytic cells by sCD26 and LPS leads to elevation of TNF- and IL-6 expression. PMID: 23805228
  32. Increased plasma DPP-4 activity may correlate with aneurysmal development. CD26 on monocytes plays a critical role in cell differentiation, possibly mediated by extracellular signal-regulated protein kinase 1/2-p21 axis signaling pathways and cytoskeletal proteins reassembly. PMID: 27887857
  33. Plasma DPP4 activity is significantly associated with NAFLD. The underlying mechanisms may be partly attributed to the interactions between insulin resistance, oxidative stress, inflammation, and DPP4. PMID: 28637594
  34. CD26+ fibroblasts possess proliferation advantage in comparison to CD26- fibroblasts, and the advantage caused expansion of CD26 positive fibroblast population promotes keloid progression. PMID: 28454879
  35. MFSD2B, CCL20 and STAT1, or STARD7 and ZNF512 genes may be risk or protect factors in prognosis of ADC; HTR2B, DPP4, and TGFBRAP1 genes may be risk factors in prognosis of SQC. PMID: 27301951
  36. Increased DPP4 expression is associated with cellular invasion and more aggressive disease in papillary thyroid cancer. DPP4 silencing or treatment with DPP4 inhibitors significantly suppressed colony formation, cell migration, and invasion. PMID: 28575350
  37. Cultured human skin fibroblasts displayed significantly higher levels of CD26 than gingival fibroblasts. This was associated with an increased expression of profibrotic genes and transforming growth factor-beta signaling in skin fibroblasts. PMID: 28641076
  38. Suggest DPP-4 inhibition has a neutral effect on cardiovascular risk in type 2 diabetics without a history of heart failure or renal insufficiency. PMID: 28145158
  39. To clarify whether DPP4 alters its general or partial structure according to the inhibitor used and whether DPP4 has a common rule for inhibitor binding, this study comprehensively analyzed X-ray cocrystal structures of DPP-4 and its inhibitor. All the main and side chains in the inhibitor binding area were minimally altered, except for a few side chains, despite binding to inhibitors of various shapes. PMID: 27491540
  40. DPP-4-dependent insulin like growth factor-1 inhibition in valvular interstitial cells contributes to aortic calcification. PMID: 28179397
  41. Data suggest that, in obesity, serum levels of active GLP1 are down-regulated and serum levels of soluble DPP4 are up-regulated; DPP4 levels correlate negatively with active GLP-1 levels but are positively associated with insulin resistance; thus, DPP4 may be biomarker for insulin resistance. This study was conducted in Malaysia. (GLP1 = glucagon-like peptide 1; DPP4 = dipeptidyl peptidase 4) PMID: 28288852
  42. YS110 is a humanised IgG1 monoclonal antibody with high affinity to the CD26 antigen. YS110 demonstrated preclinical anti-tumour effects without significant side effects PMID: 28291776
  43. Gain of CD26 expression on the malignant T-cells in relapsed erythrodermic leukemic mycosis fungoides PMID: 28083948
  44. like AprA, DPPIV is a chemorepellent for, and inhibits the proliferation of, D. discoideum cells, and that AprA binds some DPPIV binding partners such as fibronectin. PMID: 28028841
  45. CD26 expression should be incorporated in B-CLL patients risk assessment along with well known prognostic factors, since it seems to have a relationship with the tumor mass and influences TTT. PMID: 27376546
  46. Serum CD26 concentration might be an independent prognostic indicator in patients with esophageal squamous cell carcinoma . It might be also useful to detect recurrent tumor in postoperative patients. PMID: 27664490
  47. The trimeric form receptor-binding domain of MERS-CoV spike protein protected hDPP4 transgenic mice from lethal MERS-CoV challenge. PMID: 27750111
  48. Data suggest that dipeptidyl-peptidase 4 [DPP-4) induces a selective pathway of insulin resistance with reduced glycogen storage, enhanced glucose output and increased lipid accumulation in the liver. PMID: 28213130
  49. Analysis of human liver biopsy specimens revealed a correlation of DPP4 expression and DNA methylation to stages of hepatosteatosis and nonalcoholic steatohepatitis. PMID: 27999105
  50. The study suggests that a genetic interaction between DPP4 and CCR6 is involved in RA susceptibility PMID: 27587881
  51. Dipeptidyl peptidase-4 is a common pathway leading to inflammation and fibrosis. Review. PMID: 27782998
  52. review explores the roles of DPPIV/CD26 expression in tumor progression in different types of cancer and demonstrates the importance of this protein as a promising therapeutic target and tumor biomarker PMID: 26943912
  53. Plasmatic DPP-IV enzymatic activity, and in particular the ratio between DPP-IV enzymatic activity and concentration in pancreatic ductal adenocarcinoma with recent onset diabetes was higher compared to type 2 diabetes mellitus PMID: 27320722
  54. DPP4 polymorphisms are associated with T2DM in Malaysian subjects, and linked to variations in sDPP-IV levels PMID: 27111895
  55. DPP4 activity and/or structure homologue (DASH) proteins are involved in many pathophysiological processes and have therefore been proposed for potential biomarkers or even drug targets in various cancers (DPP4 and FAP). (Review) PMID: 26671446
  56. The results show that a decrease in DPPIV serum activity, but not CD26 expression, is present in an early stage of rheumatoid arthritis. PMID: 27341562
  57. This is the first study to investigate DPP4 allelic distributions and their association with dyslipidemia in Chinese type 2 diabetes patients, which may have clinical significance. PMID: 27585937
  58. Neuropeptide Y is the best dipeptidyl peptidase 4 (DPP4)-substrate in blood, being truncated by soluble and membrane DPP4, respectively. The decline of soluble DPP4 in acute depression could be reversed upon anti-depressive treatment. PMID: 26988064
  59. Expression of trophinin and dipeptidyl peptidase IV in endometrial co-culture in the presence of an embryo: A comparative immunocytochemical study. PMID: 27035766
  60. hypoxia altered the expression of DPP4 in human preadipocytes PMID: 26881257
  61. High CXCL9 plasma levels favour response to pegIFN alpha 2a and ribavirin in hepatitis C virus infected patients regardless of DPP4 activity. PMID: 26344576
  62. increased DPP4 activities are strongly and independently associated with diabetic nephropathy in type 2 diabetes PMID: 26821795
  63. High stromal CD26 expression is associated with rectal cancer. PMID: 26370256
  64. Serum DPP-4 levels were positively associated with visceral fat obesity and metabolic syndrome in men with type 2 diabetes mellitus. PMID: 27321309
  65. Data show that high level of serum dipeptidyl peptidase-4 (DPP-4) is associated with multiple vertebral fractures (VFs) independently of bone mineral density (BMD) and bone formation in men with type 2 diabetes mellitus (T2DM). PMID: 26541263
  66. DPP4 may be involved in the pathologic features of asthmatic airway inflammation and cell proliferation and FN production. PMID: 26975422
  67. Results identified heart expression of DPP4 to be coordinated with a gene expression signature characteristic for whole blood proliferation, potentially impacting peripheral stem cell mobilization. PMID: 26856537
  68. decreased T-cell expression and lower plasma levels in Indian patients with Post Kala-azar Dermal Leishmaniasis PMID: 26644312
  69. The effect of the DPP-4 inhibitor alogliptin on HbA1c. PMID: 26125284
  70. Lack of DPP4 expression may be the primary cause of limited MERS-CoV replication in the human upper respiratory tract and hence restrict transmission. PMID: 26889022
  71. Loss of DPP4 is associated with Multi-Organ Damage in Human Dipeptidyl Peptidase 4 Transgenic Mice Infected with Middle East Respiratory Syndrome-Coronavirus. PMID: 26701103
  72. DPP4 may have a role in the pathogenesis of subclinical atherosclerosis and in the prevention and management of this disease PMID: 26318108
  73. Our results might indicate an altered DPP4-incretin system and altered immunoregulation including a potentially dysfunctional GLP1(9)(-)(36) signaling in T1DM. PMID: 26434625
  74. In diabetes and/or obesity, cDPP4 activity is associated with hepatocyte apoptosis and liver fibrosis. PMID: 25350950
  75. Serum DPPIV concentration in patients with COPD is decreased significantly, and there is no correlation between serum DPPIV concentration and sex or age. PMID: 26992252
  76. In conclusion, each of the DPP-4 inhibitors may have unique drug-specific effects. PMID: 26826382
  77. Based on our previous observation that sDPP4 induces insulin resistance in adipocytes, we suggest dpp4 is a regulator of insulin signaling. PMID: 26872429
  78. This is a preliminary study showing that the measurement of serum CD26 levels could represent an early detection marker for gastric cancer. PMID: 26471376
  79. Consistent with the loss of CXCR4 and gain in CD26, migratory responses to exogenous CXCL12 were eliminated in cells pretreated with cytotoxic agents, although cells retained basal motility PMID: 26552750
  80. DPP-4 and integrin beta1 interactions regulate key endothelial cell signal transduction in both physiological and pathological conditions including endothelial mesenchymal transformation. PMID: 25830763
  81. Serum sCD26/DPP-IV levels increased in T2DM subjects with and without MetS PMID: 26474470
  82. Pancreatic dipeptidyl peptidase-4 was elevated in pancreatic tissue from patients with congenital hyperinsulinism. PMID: 26339388
  83. Increased plasma dipeptidyl peptidase 4 activities are associated with new-onset microalbuminuria in association with its proinflammatory effects in Chinese without diabetes PMID: 25294850
  84. Report molecular docking studies of representative active DPP4 inhibitors. PMID: 26309399
  85. Treatment with metformin and DPP4 inhibitor vildagliptin favorably changed glycemic indices and apelin levels in type 2 diabetics. PMID: 26316706
  86. Association has been found between CXCL10 and DPP4 Gene polymorphisms and a complementary role for unfavorable IL28B genotype in prediction of treatment response in Thai patients with chronic hepatitis C virus infection. PMID: 26339796
  87. The obtained data support the participation of dipeptidylpeptidase 4 in adaptive reactions of newborns and its regulating influence during hypoxemic damage of the central nervous system due to inflammation and neurodegeneration. PMID: 26051627
  88. Changes in blood plasma and blood mononuclear cell DPP-IV was related to intraindividual differences in rheumatoid arthritis disease activity. PMID: 26353808
  89. Cell migration is regulated by DPPIV/CD26 activity. PMID: 26222679
  90. DPP4 activity is an important predictor of hypertension onset in apparently healthy Chinese individuals. PMID: 25411054
  91. In this article we hypothesize the potential role of DPP-4 inhibitors, a novel class of antidiabetic drugs in increasing the number of circulating endothelial progenitor cells. PMID: 25913811
  92. Elevation in CD26 is associated with oxidative stress in Acute Lymphoblastic Leukemia. PMID: 26163641
  93. CD49d and CD26 have independent prognostic value and we suggest its use as a part of routine panel for prognostic stratification of CLL. PMID: 26142332
  94. We aimed to review the evidences that reinforce the associations between DPP4, atherosclerosis, and Type 2 diabetes mellitus PMID: 26146634
  95. Data show that FAP and DPP4 proteins were simultaneously induced in dedifferentiating mature adipocytes supporting a potential role for these enzymes in adipose tissue remodeling and cell plasticity. PMID: 25816202
  96. These results indicate that the synergistic enhancement of the hDPPIV inhibitory effects by the combination of Trp-Arg-Glu and collagen hydrolysates was partly attributable to the combination of Trp-Arg-Glu and Gly-Pro-Ala PMID: 25929171
  97. This study shows that porcine DPP-IV is generally inhibited with greater potency by protein-derived peptides than is the human enzyme PMID: 25828735
  98. increase in the salivary ADA and DPP-IV activities as well as in the lipid peroxidation could be related of the regulation to various aspects of adipose tissue function and inflammatory obesity PMID: 25527815
  99. Up-regulation of DPPIV in colorectal tumors suggests a role for this enzyme in the neoplastic transformation of colorectal tissues PMID: 25790122
  100. Circulating levels of DPP4 in cardiovascular disease patients were dependent on serum PEDF levels. PMID: 25705004

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Subcellular Location Dipeptidyl peptidase 4 soluble form: Secreted, Note=Detected in the serum and the seminal fluid, SUBCELLULAR LOCATION: Cell membrane, Single-pass type II membrane protein, Apical cell membrane, Single-pass type II membrane protein, Cell projection, invadopodium membrane, Single-pass type II membrane protein, Cell projection, lamellipodium membrane, Single-pass type II membrane protein, Cell junction, Membrane raft
Protein Families Peptidase S9B family, DPPIV subfamily
Tissue Specificity Expressed specifically in lymphatic vessels but not in blood vessels in the skin, small intestine, esophagus, ovary, breast and prostate glands. Not detected in lymphatic vessels in the lung, kidney, uterus, liver and stomach (at protein level). Expressed
Database Links

HGNC: 3009

OMIM: 102720

KEGG: hsa:1803

STRING: 9606.ENSP00000353731

UniGene: Hs.368912

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