Academic Journals Database
Disseminating quality controlled scientific knowledge

In-vitro differentiation of rat peripheral blood monocytes into insulin-producing cells by rat pancreatic extract

ADD TO MY LIST
 
Author(s): Tanhaye Kalate Sabz F | Farokhi F | Delirezh N | Chapari H

Journal: Tehran University Medical Journal
ISSN 1683-1764

Volume: 69;
Issue: 4;
Start page: 211;
Date: 2011;
Original page

Keywords: Insulin-producing beta cells | monocyte | peripheral blood stem cells | pancreatic extract | rat

ABSTRACT
Background: Cell-therapy provides a promising alternative for the treatment of type 1 diabetes. Monocytes which have a reprogramming or differentiation potential and are more available than any other types of stem cells, have been recognized as candidates for such investigations. The aim of the present study was to evaluate the differentiation potential of rat peripheral blood monocytes into insulin-producing cells by the use of rat pancreatic extract (2 days after a 60% pancreatectomy). Methods: Rat peripheral blood monocytes were isolated and cultured. Adherent monocytes were induced to differentiate into programmable cells in RPMI supplemented by 10% FCS, β-mercaptoetanol, M-CSF and IL-3 for six days. The dedifferentiated cells were analyzed by invert microscopy. Cultures of Programmable Cells of Monocytic Origin (PCMOs) were continued in RPMI, containing 10% FBS, pancreatic extract and 5 mmol/L glucose for 15 days. The medium was replaced every three days. At the end of the protocol, insulin and c-peptide excreted by the differentiated cells were tested by radioimmunoassay on days 6, 14, and 21. In order to verify insulin production in the cells, dithizone-staining, which is a method for insulin identification, was employed. Results: The results showed that the cells cultured in rat pancreatic extract secreted insulin and c-peptide relative to the control group. Dithizone-staining was positive in the aforesaid cells (P

Tango Jona
Tangokurs Rapperswil-Jona

     Save time & money - Smart Internet Solutions