Biomaterial Database

Characterization of stromal vascular fraction and adipose stem cells from subcutaneous, preperitoneal and visceral morbidly obese human adipose tissue depots. 2017

Karina Ribeiro Silva, and Isis Côrtes, and Sally Liechocki, and João Regis Ivar Carneiro, and Antônio Augusto Peixoto Souza, and Radovan Borojevic, and Clarissa Menezes Maya-Monteiro, and Leandra Santos Baptista

Post-graduation Program of Medical Clinics, Federal University of Rio de Janeiro - UFRJ, Rio de Janeiro, Brazil.

OBJECTIVE The pathological condition of obesity is accompanied by a dysfunctional adipose tissue. We postulate that subcutaneous, preperitoneal and visceral obese abdominal white adipose tissue depots could have stromal vascular fractions (SVF) with distinct composition and adipose stem cells (ASC) that would differentially account for the pathogenesis of obesity. METHODS In order to evaluate the distribution of SVF subpopulations, samples of subcutaneous, preperitoneal and visceral adipose tissues from morbidly obese women (n = 12, BMI: 46.2±5.1 kg/m2) were collected during bariatric surgery, enzymatically digested and analyzed by flow cytometry (n = 12). ASC from all depots were evaluated for morphology, surface expression, ability to accumulate lipid after induction and cytokine secretion (n = 3). RESULTS A high content of preadipocytes was found in the SVF of subcutaneous depot (p = 0.0178). ASC from the three depots had similar fibroblastoid morphology with a homogeneous expression of CD34, CD146, CD105, CD73 and CD90. ASC from the visceral depot secreted the highest levels of IL-6, MCP-1 and G-CSF (p = 0.0278). Interestingly, preperitoneal ASC under lipid accumulation stimulus showed the lowest levels of all the secreted cytokines, except for adiponectin that was enhanced (p = 0.0278). CONCLUSIONS ASC from preperitoneal adipose tissue revealed the less pro-inflammatory properties, although it is an internal adipose depot. Conversely, ASC from visceral adipose tissue are the most pro-inflammatory. Therefore, ASC from subcutaneous, visceral and preperitoneal adipose depots could differentially contribute to the chronic inflammatory scenario of obesity.

UI	MeSH Term	Description	Entries
D007249	Inflammation	A pathological process characterized by injury or destruction of tissues caused by a variety of cytologic and chemical reactions. It is usually manifested by typical signs of pain, heat, redness, swelling, and loss of function.	Innate Inflammatory Response,Inflammations,Inflammatory Response, Innate,Innate Inflammatory Responses
D009767	Obesity, Morbid	The condition of weighing two, three, or more times the ideal weight, so called because it is associated with many serious and life-threatening disorders. In the BODY MASS INDEX, morbid obesity is defined as having a BMI greater than 40.0 kg/m2.	Morbid Obesity,Obesity, Severe,Morbid Obesities,Obesities, Morbid,Obesities, Severe,Severe Obesities,Severe Obesity
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328	Adult	A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available.	Adults
D013234	Stem Cells	Relatively undifferentiated cells that retain the ability to divide and proliferate throughout postnatal life to provide progenitor cells that can differentiate into specialized cells.	Colony-Forming Units,Mother Cells,Progenitor Cells,Colony-Forming Unit,Cell, Mother,Cell, Progenitor,Cell, Stem,Cells, Mother,Cells, Progenitor,Cells, Stem,Colony Forming Unit,Colony Forming Units,Mother Cell,Progenitor Cell,Stem Cell
D016207	Cytokines	Non-antibody proteins secreted by inflammatory leukocytes and some non-leukocytic cells, that act as intercellular mediators. They differ from classical hormones in that they are produced by a number of tissue or cell types rather than by specialized glands. They generally act locally in a paracrine or autocrine rather than endocrine manner.	Cytokine
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
D050151	Subcutaneous Fat	Fatty tissue under the SKIN through out the body.	Adipose Tissue, Subcutaneous,Fat, Subcutaneous,Subcutaneous Adipose Tissue,Fats, Subcutaneous,Subcutaneous Fats
D050152	Intra-Abdominal Fat	Fatty tissue inside the ABDOMINAL CAVITY, including visceral fat and retroperitoneal fat. It is the most metabolically active fat in the body and easily accessible for LIPOLYSIS. Increased visceral fat is associated with metabolic complications of OBESITY.	Abdominal Visceral Fat,Fat, Intra-Abdominal,Intra-Abdominal Adipose Tissue,Retroperitoneal Adipose Tissue,Retroperitoneal Fat,Visceral Adipose Tissue,Visceral Fat,Abdominal Visceral Fats,Adipose Tissue, Intra-Abdominal,Adipose Tissue, Retroperitoneal,Adipose Tissue, Visceral,Fat, Abdominal Visceral,Fat, Intra Abdominal,Fat, Retroperitoneal,Fat, Visceral,Fats, Abdominal Visceral,Fats, Intra-Abdominal,Fats, Retroperitoneal,Fats, Visceral,Intra Abdominal Adipose Tissue,Intra Abdominal Fat,Intra-Abdominal Fats,Retroperitoneal Fats,Visceral Fats