Biomaterial Database

[Primary culturing and effects of insulin glargine on proliferation, differentiation of human preadipocytes from subcutaneous and omental adipose tissue]. 2013

Hong-yun Lu, and Xiao-feng Li, and Pan-wei Mu, and Wei Jiang, and Long-yi Zeng

Department of Endocrinology, Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, China.

OBJECTIVE To compare the morphological and functional differences of human primary preadipocytes from different fat depots and explore the effects of insulin glargine on their proliferation and differentiation. METHODS Primary preadipocytes isolated from human subcutaneous and omental adipose tissue by collagenase I were passaged in vitro.Inverted phase contrast microscope was used to observe the morphological differences of two kinds of preadipocytes. Then two kinds of preadipocytes were cultured or induced to differentiation with different doses of insulin glargine. The methyl thiazolyl tetrazolium (MTT) assay was used to detect their proliferative differences.Reverse transcription-polymerase chain reaction (RT-PCR) was used to observe the effects of insulin on adipogenic gene expression. RESULTS (1) Both preadipocytes could be successfully cultured from adipose tissue and amplified in vitro.Subcutaneous preadipocytes were more slender and proliferated more quickly while omental preadipocytes were polygonal and aged easily.(2) MTT results showed that insulin glargine could inhibit the proliferation of omental preadipocytes in a dose-dependent fashion. After 72 h incubation, compared with negative control, the absorbance (A) value of 1000 nmol/L insulin glargine group decreased greatly (0.144 ± 0.021 vs 0.267 ± 0.040, P < 0.01). But it had no effect on subcutaneous preadipocytes (0.305 ± 0.045 vs 0.350 ± 0.037, P > 0.05). (3) Insulin at 500 nmol/L was a suitable concentration for inducing differentiation.RT-PCR analysis showed that, for subcutaneous adipocytes, adipogenic genes such as peroxisome proliferator-activated receptor gamma (PPARγ) (F = 31.31, P < 0.01) and CCAAT enhancer binding protein α (C/EBPα) (F = 9.86, P < 0.05) had the highest mRNA expression while preadipocytes gene Pref-1 had the lowest expression at this concentration. But insulin dose had no obvious effect on PPARγ or C/EBPα mRNA (P > 0.05) for omental adipocytes. CONCLUSIONS Insulin glargine could inhibit the proliferation of omental preadipocytes, and enhance the differentiation of subcutaneous and omental preadipocytes.

UI	MeSH Term	Description	Entries
D009852	Omentum	A double-layered fold of peritoneum that attaches the STOMACH to other organs in the ABDOMINAL CAVITY.	Omentums
D002454	Cell Differentiation	Progressive restriction of the developmental potential and increasing specialization of function that leads to the formation of specialized cells, tissues, and organs.	Differentiation, Cell,Cell Differentiations,Differentiations, Cell
D002478	Cells, Cultured	Cells propagated in vitro in special media conducive to their growth. Cultured cells are used to study developmental, morphologic, metabolic, physiologic, and genetic processes, among others.	Cultured Cells,Cell, Cultured,Cultured Cell
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000069036	Insulin Glargine	A recombinant LONG ACTING INSULIN and HYPOGLYCEMIC AGENT that is used to manage BLOOD GLUCOSE in patients with DIABETES MELLITUS.	Insulin Glargine-aglr,Insulin Glargine-yfgn,Rezvoglar,Semglee,A21-Gly-B31-Arg-B32-Arg-insulin,Basaglar,Glargine,HOE 901,HOE-901,Insulin, Gly(A21)-Arg(B31,B32),Insulin, Glycyl(A21)-Arginyl(B31,B32),Lantus,Lantus Solostar,901, HOE,A21 Gly B31 Arg B32 Arg insulin,Glargine, Insulin,Glargine-aglr, Insulin,HOE901,Solostar, Lantus
D000273	Adipose Tissue	Specialized connective tissue composed of fat cells (ADIPOCYTES). It is the site of stored FATS, usually in the form of TRIGLYCERIDES. In mammals, there are two types of adipose tissue, the WHITE FAT and the BROWN FAT. Their relative distributions vary in different species with most adipose tissue being white.	Fatty Tissue,Body Fat,Fat Pad,Fat Pads,Pad, Fat,Pads, Fat,Tissue, Adipose,Tissue, Fatty
D017667	Adipocytes	Cells in the body that store FATS, usually in the form of TRIGLYCERIDES. WHITE ADIPOCYTES are the predominant type and found mostly in the abdominal cavity and subcutaneous tissue. BROWN ADIPOCYTES are thermogenic cells that can be found in newborns of some species and hibernating mammals.	Fat Cells,Lipocytes,Adipocyte,Cell, Fat,Cells, Fat,Fat Cell,Lipocyte
D049109	Cell Proliferation	All of the processes involved in increasing CELL NUMBER including CELL DIVISION.	Cell Growth in Number,Cellular Proliferation,Cell Multiplication,Cell Number Growth,Growth, Cell Number,Multiplication, Cell,Number Growth, Cell,Proliferation, Cell,Proliferation, Cellular
D049528	Insulin, Long-Acting	Insulin formulations that contain substances that retard absorption thus extending the time period of action.	Insulin, Semilente,Long-Acting Insulin,Insulin, Long Acting,Long Acting Insulin,Semilente Insulin
D050151	Subcutaneous Fat	Fatty tissue under the SKIN through out the body.	Adipose Tissue, Subcutaneous,Fat, Subcutaneous,Subcutaneous Adipose Tissue,Fats, Subcutaneous,Subcutaneous Fats