CD26

CD26

a type II transmembrane protein present on mature T cells, some B cells, apical membranes of epithelial and endothelial cells, kidney, intestinal brush borders, and liver bile canaliculi; combines with collagen and associates with adenosine deaminase.

DPP4

A gene on chromosome 2q24.3 that encodes dipeptidyl-peptidase 4, a ubiquitous, membrane-bound enzyme with roles in nutrition, metabolism, the endocrine system, immune regulation (for instance, it is essential for T-cell receptor (TCR)-mediated T-cell activation), bone marrow mobilisation, apoptosis, cell adhesion and tumourigenesis.
References in periodicals archive ?
In previous studies, we reported the emergence and spread of mutant MERS-CoV bearing spike mutations (I529T or D510G) in receptor binding domain (RBD) with reduced affinity to human CD26 receptor during the South Korea outbreak (6).
It inhibits inflammatory signaling mechanism by reducing the expression of CD26, toll like receptor (TLR-2 and TLR-R), mitogen-activated protein kinase (MAPK-8), chemokine receptor 2(CCR-2), nuclear factor Kappa-B kinase and TNF-[alpha] on mononuclear cells.
In peripheral blood, nontransformed MF frequently demonstrates loss of CD7 and CD26. In the correct clinical setting, a population with a [CD3.sup.+]/[CD4.sup.+]/[CD7.sup.-]/[CD8.sup.-] phenotype in which the abnormal [CD7.sup.-]/[CD26.sup.-] cells typically show dim expression of CD3 and CD4 is highly suggestive of MF (4,8,9); at tissue sites, CD26 may alternately be overexpressed.
Abnormalities may consist of absent or reduced CD2, CD5, CD7, or CD26 expression [6].
Dipeptidyl peptidase 4 (DPP4) also named as the CD26 lymphocyte marker was initially identified as a therapeutic target for T2DM [55].
Huang, "DPP-4 (CD26) inhibitor alogliptin inhibits atherosclerosis in diabetic apolipoprotein E-deficient mice," Journal of Cardiovascular Pharmacology, vol.
ADA, which is responsible for adenosine degradation, is hosted on CD26, a cell surface-bound glycoprotein [15].
Flow cytometry (FCM) analysis of the BM aspirate cells using the EuroFlow lymphoid screening tube (LST) and antibody panel for NK cell chronic lymphoproliferative diseases (NK-CLPD) [7], complemented with other cell surface markers, showed that the neoplastic cells were positive for CD45 (high), CD2, CD26, CD38, CD94 (high), and HLADR (high, heterogeneous) antigens, and negative for surface CD3, TCR, CD4, CD5, CD7, CD8, CD11b, CD11c, CD16, CD56, CD57, and CD161, as well as for cytoplasmic CD3; in addition, they express intracellular granzyme B and perforin (Figure 3).
(1993) reported that direct relationship between the CD26 and ADA asserted to these interactions may provide a clue for pathophysiology of severe combined immune deficiency related to ADA deficiency.
La enzima se localiza tanto en citoplasma donde mantiene su actividad hidrolasa, como en la superficie de diversas celulas; por lo que es considerada una ecto-enzima y mantiene su funcion incluso despues de unirse a la glicoproteina CD26, la cual involucra la desaminacion de la adenosina extracelular cuando se encuentra en elevados niveles que son toxicos para los linfocitos (3).
Known as LCA60, it binds to the virus when it encounters it, preventing the virus from binding to CD26 receptor cells.