Related Experiment Video
Updated: Sep 26, 2025

Isolation of Rat Adipose Tissue Mesenchymal Stem Cells for Differentiation into Insulin-producing Cells
Published on: August 29, 2022
Mesenchymal Stem Cells Ameliorate Hyperglycemia in Type I Diabetic Developing Male Rats
Hany N Yousef1, Samia M Sakr1, Sahar A Sabry1
1Department of Biological and Geological Sciences, Faculty of Education, Ain Shams University, Cairo 11566, Egypt.
Abstract:
One of the most promising treatments for diabetes mellitus (DM) is stem cell therapy. This study is aimed at elucidating the antidiabetic effect of mesenchymal stem cells (MSCs) on streptozotocin- (STZ-) induced DM in developing male rats. Twenty-four male albino rats (4 weeks old) were divided into control, diabetic, diabetic+MSCs1 (received MSCs one week after STZ treatment), and diabetic+MSCs2 (received MSCs 4 weeks after STZ treatment). Diabetic rats showed marked impairment (p < 0.05) in serum levels of glucose, insulin, C-peptide, glycosylated hemoglobin (HbA1c), malondialdehyde (MDA), total antioxidant status (TAS), and total oxidant status (TOS) in addition to disruption of the calculated values of homeostatic model assessment of insulin resistance (HOMA-IR), pancreatic β cell function (HOMA-β), and oxidative stress index (OSI). These biochemical alterations were confirmed by the histopathological and ultrastructural assessments which showed marked destructive effect on pancreatic islet cells. MSC therapy in an early stage reversed most of the biochemical, histological, and ultrastructural alterations in the STZ-induced diabetic model and restored the normal cellular population of most acinar cells and islet of Langerhans. These results indicate that MSC therapy of STZ-induced diabetic developing rats during an early stage has the capacity of β cell restoration and the control of blood glycemic homeostasis.
Insights
Mesenchymal stem cell (MSC) therapy shows promise for diabetes mellitus (DM). Early-stage MSC treatment in rats with streptozotocin-induced DM effectively restored pancreatic beta cells and improved glycemic control.
Area of Science:
- Endocrinology
- Regenerative Medicine
- Cell Biology
Background:
- Diabetes Mellitus (DM) poses a significant global health challenge.
- Stem cell therapy, particularly with Mesenchymal Stem Cells (MSCs), is an emerging therapeutic strategy for DM.
- Streptozotocin (STZ) induced diabetes in rats is a widely used model to study DM pathogenesis and treatment.
Purpose of the Study:
- To investigate the antidiabetic effects of MSCs in a rat model of STZ-induced DM.
- To evaluate the impact of early-stage MSC administration on glycemic control and pancreatic function.
- To assess the histological and ultrastructural changes in pancreatic islet cells following MSC therapy.
Main Methods:
- Twenty-four male rats were divided into control, diabetic, and two diabetic groups receiving MSCs at different time points post-STZ induction.
- Biochemical parameters including glucose, insulin, C-peptide, HbA1c, MDA, TAS, and TOS were measured.
- Insulin resistance (HOMA-IR), beta cell function (HOMA-β), and oxidative stress index (OSI) were calculated.
- Histopathological and ultrastructural analyses of pancreatic tissues were performed.
Main Results:
- STZ-induced diabetic rats exhibited significant impairments in glycemic control, insulin regulation, and oxidative balance.
- Histopathological analysis revealed destructive effects on pancreatic islet cells in diabetic rats.
- Early-stage MSC therapy significantly reversed biochemical alterations and restored pancreatic islet cell structure and function.
- MSC treatment led to improved glycemic homeostasis and beta cell restoration.
Conclusions:
- Mesenchymal stem cell therapy demonstrates significant potential in treating STZ-induced diabetes mellitus.
- Early intervention with MSCs is crucial for effective beta cell restoration and glycemic control.
- MSC therapy offers a promising regenerative approach for managing diabetes and its complications.
Related Concept Videos
Mesenchymal Stem Cells
Diabetes Mellitus: Overview and Type I Subtype
Type 1 diabetes is an autoimmune disease in which the immune system mistakenly attacks and destroys the insulin-producing beta cells in the pancreas. As a result, the body is unable to produce sufficient insulin, and individuals with...

