639-P: Pharmacological Mobilization and Recruitment of Bone Marrow Stem Cells Accelerates Diabetic Wound Healing in Rats with Diabetic Complications

Diabetes ◽  
2019 ◽  
Vol 68 (Supplement 1) ◽  
pp. 639-P
Author(s):  
LE QI ◽  
ALI REZA AHMADI ◽  
JINNY HUANG ◽  
QING LIN ◽  
MELISSA CHEN ◽  
...  
2010 ◽  
Vol 174 (4) ◽  
pp. 467-479 ◽  
Author(s):  
Wei-Ying Guo ◽  
Guan-Jun Wang ◽  
Ping Wang ◽  
Qiang Chen ◽  
Yi Tan ◽  
...  

2018 ◽  
Vol 315 (6) ◽  
pp. C885-C896 ◽  
Author(s):  
Jianming Guo ◽  
Haidi Hu ◽  
Jolanta Gorecka ◽  
Hualong Bai ◽  
Hao He ◽  
...  

We have previously shown that bone marrow-derived mesenchymal stem cells (BMSC) accelerate wound healing in a diabetic mouse model. In this study, we hypothesized that adipose tissue-derived stem cells (ADSC), cells of greater translational potential to human therapy, improve diabetic wound healing to a similar extent as BMSC. In vitro, the characterization and function of murine ADSC and BMSC as well as human diabetic and nondiabetic ADSC were evaluated by flow cytometry, cell viability, and VEGF expression. In vivo, biomimetic collagen scaffolds containing murine ADSC or BMSC were used to treat splinted full-thickness excisional back wounds on diabetic C57BL/6 mice, and human healthy and diabetic ADSC were used to treat back wounds on nude mice. Wound healing was evaluated by wound area, local VEGF-A expression, and count of CD31-positive cells. Delivery of murine ADSC or BMSC accelerated wound healing in diabetic mice to a similar extent, compared with acellular controls ( P < 0.0001). Histological analysis showed similarly increased cellular proliferation ( P < 0.0001), VEGF-A expression ( P = 0.0002), endothelial cell density ( P < 0.0001), numbers of macrophages ( P < 0.0001), and smooth muscle cells ( P < 0.0001) with ADSC and BMSC treatment, compared with controls. Cell survival and migration of ADSC and BMSC within the scaffolds were similar ( P = 0.781). Notch signaling was upregulated to a similar degree by both ADSC and BMSC. Diabetic and nondiabetic human ADSC expressed similar levels of VEGF-A ( P = 0.836) in vitro, as well as in scaffolds ( P = 1.000). Delivery of human diabetic and nondiabetic ADSC enhanced wound healing to a similar extent in a nude mouse wound model. Murine ADSC and BMSC delivered in a biomimetic-collagen scaffold are equivalent at enhancing diabetic wound healing. Human diabetic ADSC are not inferior to nondiabetic ADSC at accelerating wound healing in a nude mouse model. This data suggests that ADSC are a reasonable choice to evaluate for translational therapy in the treatment of human diabetic wounds.


Author(s):  
Jiang-wen Wang ◽  
Yuan-zheng Zhu ◽  
Xuan Hu ◽  
Jia-ying Nie ◽  
Zhao-hui Wang ◽  
...  

Background: The healing of diabetic wounds is poor due to a collagen deposition disorder. Matrix metalloproteinase-9 (MMP-9) is closely related to collagen deposition in the process of tissue repair. Many studies have demonstrated that extracellular vesicles derived from adipose-derived stem cells (ADSC-EVs) promote diabetic wound healing by enhancing collagen deposition. Objective: In this study, we explored if ADSC-EVs could downregulate the expression of MMP-9 in diabetic wounds and promote wound healing by improving collagen deposition. The potential effects of ADSC-EVs on MMP-9 and diabetic wound healing were tested both in vitro and in vivo. Methods: We first evaluated the effect of ADSC-EVs on the proliferation and MMP-9 secretion of HaCaT cells treated with advanced glycation end product-bovine serum albumin (AGE-BSA), using CCK-8 western blot and MMP-9 enzyme-linked immunosorbent assay(ELISA). Next, the effect of ADSC-EVs on the healing, re-epithelialisation, collagen deposition, and MMP-9 concentration in diabetic wound fluids was evaluated in an immunodeficient mouse model via MMP-9 ELISA and haematoxylin and eosin, Masson’s trichrome, and immunofluorescence staining for MMP-9. Results: In vitro, ADSC-EVs promoted the proliferation and MMP-9 secretion of HaCaT cells.In vivo, ADSC-EVs accelerated diabetic wound healing by improving re-epithelialisation and collagen deposition and by inhibiting the expression of MMP-9. Conclusion: ADSC-EVs possessed the healing of diabetic wounds in a mouse model by inhibiting downregulating MMP-9 and improving collagen deposition.Thus ,ADSC-EVs are a promising candidate for the treatment of diabetic wounds .


2019 ◽  
Vol 312 (5) ◽  
pp. 325-336 ◽  
Author(s):  
Mona Saheli ◽  
Mohammad Bayat ◽  
Rasoul Ganji ◽  
Farzane Hendudari ◽  
Raziyeh Kheirjou ◽  
...  

2018 ◽  
Vol 107 ◽  
pp. 625-633 ◽  
Author(s):  
Mohamed Gadelkarim ◽  
Abdelrahman Ibrahim Abushouk ◽  
Esraa Ghanem ◽  
Ali Mohamed Hamaad ◽  
Anas M. Saad ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document