title: Aberrant expression of soluble co-stimulatory molecules and adhesion molecules in type 2 diabetic patients with nephropathy.
abstract: Co-stimulatory molecules together with leukocyte adhesion molecules are important for T lymphocyte and leukocyte-mediated inflammatory responses. We investigated the soluble costimulatory molecules CD80, CD86, CD28, and CTLA-4 and soluble adhesion molecules in plasma of 94 type 2 diabetic patients with or without nephropathy (DN and NDN) and 20 healthy controls. Plasma concentration of sCTLA-4 was significantly lower, whereas sCD28 was significantly higher in DN patients than that in control subjects (all P < 0.05). sCD28 and sCD80 were found to be positively correlated with fasting urine albumin: creatinine ratio in DN patients but not in NDN patients. Elevated soluble adhesion molecule vascular cell adhesion molecule-1 and P-selectin could be related with the disease severity of DN (all P < 0.05). Therefore, the aberrant expression of soluble co-stimulatory molecules and adhesion molecules can be related to the activation of T cells and leukocytes in the progression of inflammation in diabetic nephropathy.
authors.affiliation: Department of Chemical Pathology, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong.
authors.forename: C K
authors.initials: CK
authors.lastname: Wong
authors.forename: Amy W Y
authors.initials: AW
authors.lastname: Ho
authors.forename: Peter C Y
authors.initials: PC
authors.lastname: Tong
authors.forename: C Y
authors.initials: CY
authors.lastname: Yeung
authors.forename: Juliana C N
authors.initials: JC
authors.lastname: Chan
authors.forename: Alice P S
authors.initials: AP
authors.lastname: Kong
authors.forename: Christopher W K
authors.initials: CW
authors.lastname: Lam
mesh_terms: D000328:Adult; D015703:Antigens, CD / Q000097:blood*; D000943:Antigens, Differentiation / Q000097:blood*; D018122:B7-1 Antigen / Q000097:blood*; D051940:B7-2 Antigen / Q000097:blood*; D018106:CD28 Antigens / Q000097:blood*; D060908:CTLA-4 Antigen; D015815:Cell Adhesion Molecules / Q000097:blood*; D016207:Cytokines / Q000276:immunology / Q000378:metabolism; D003924:Diabetes Mellitus, Type 2 / Q000097:blood* / Q000150:complications / Q000276:immunology; D003928:Diabetic Nephropathies / Q000097:blood* / Q000276:immunology; D005260:Female; D006801:Humans; D007249:Inflammation / Q000276:immunology; D008297:Male; D008875:Middle Aged
chemical_list: D015703:Antigens, CD; D000943:Antigens, Differentiation; D018122:B7-1 Antigen; D051940:B7-2 Antigen; D018106:CD28 Antigens; D060908:CTLA-4 Antigen; C556706:CTLA4 protein, human; D015815:Cell Adhesion Molecules; D016207:Cytokines