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Adipose-derived mesenchymal stromal cells improve the healing of colonic anastomoses following high dose of irradiation through anti-inflammatory and angiogenic processes

(2018) CELL TRANSPLANTATION. 26(12). p.1919-1930
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Abstract
Cancer patients treated with radiotherapy (RT) could develop severe late side effects that affect their quality of life. Long-term bowel complications after RT are mainly characterized by a transmural fibrosis that could lead to intestinal obstruction. Today, surgical resection is the only effective treatment. However, preoperative RT increases the risk of anastomotic leakage. In this study, we attempted to use mesenchymal stromal cells from adipose tissue (Ad-MSCs) to improve colonic anastomosis after high-dose irradiation. MSCs were isolated from the subcutaneous fat of rats, amplified in vitro, and characterized by flow cytometry. An animal model of late radiation side effects was induced by local irradiation of the colon. Colonic anastomosis was performed 4 wk after irradiation. It was analyzed another 4 wk later (i.e., 8 wk after irradiation). The Ad-MSC-treated group received injections several times before and after the surgical procedure. The therapeutic benefit of the Ad-MSC treatment was determined by colonoscopy and histology. The inflammatory process was investigated using Fluorine-182-Fluoro-2-Deoxy-d-Glucose Positron Emission Tomography and Computed Tomography (F-18-FDG-PET/CT) imaging and macrophage infiltrate analyses. Vascular density was assessed using immunohistochemistry. Results show that Ad-MSC treatment reduces ulcer size, increases mucosal vascular density, and limits hemorrhage. We also determined that 1 Ad-MSC injection limits the inflammatory process, as evaluated through F-18-FDG-PET-CT (at 4 wk), with a greater proportion of type 2 macrophages after iterative cell injections (8 wk). In conclusion, Ad-MSC injections promote anastomotic healing in an irradiated colon through enhanced vessel formation and reduced inflammation. This study also determined parameters that could be improved in further investigations.
Keywords
STEM-CELLS, RECTAL-CANCER, RADIATION ENTEROPATHY, MESORECTAL EXCISION, COLORECTAL SURGERY, TISSUE ADHESIVES, RISK-FACTORS, THERAPY, LEAKAGE, INJURY

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MLA
Van de Putte, Dirk et al. “Adipose-derived Mesenchymal Stromal Cells Improve the Healing of Colonic Anastomoses Following High Dose of Irradiation Through Anti-inflammatory and Angiogenic Processes.” CELL TRANSPLANTATION 26.12 (2018): 1919–1930. Print.
APA
Van de Putte, D., Demarquay, C., Van Daele, E., Moussa, L., Vanhove, C., Benderitter, M., Ceelen, W., et al. (2018). Adipose-derived mesenchymal stromal cells improve the healing of colonic anastomoses following high dose of irradiation through anti-inflammatory and angiogenic processes. CELL TRANSPLANTATION, 26(12), 1919–1930.
Chicago author-date
Van de Putte, Dirk, Christelle Demarquay, Elke Van Daele, Lara Moussa, Christian Vanhove, Marc Benderitter, Wim Ceelen, Piet Pattyn, and Noëlle Mathieu. 2018. “Adipose-derived Mesenchymal Stromal Cells Improve the Healing of Colonic Anastomoses Following High Dose of Irradiation Through Anti-inflammatory and Angiogenic Processes.” Cell Transplantation 26 (12): 1919–1930.
Chicago author-date (all authors)
Van de Putte, Dirk, Christelle Demarquay, Elke Van Daele, Lara Moussa, Christian Vanhove, Marc Benderitter, Wim Ceelen, Piet Pattyn, and Noëlle Mathieu. 2018. “Adipose-derived Mesenchymal Stromal Cells Improve the Healing of Colonic Anastomoses Following High Dose of Irradiation Through Anti-inflammatory and Angiogenic Processes.” Cell Transplantation 26 (12): 1919–1930.
Vancouver
1.
Van de Putte D, Demarquay C, Van Daele E, Moussa L, Vanhove C, Benderitter M, et al. Adipose-derived mesenchymal stromal cells improve the healing of colonic anastomoses following high dose of irradiation through anti-inflammatory and angiogenic processes. CELL TRANSPLANTATION. 2018;26(12):1919–30.
IEEE
[1]
D. Van de Putte et al., “Adipose-derived mesenchymal stromal cells improve the healing of colonic anastomoses following high dose of irradiation through anti-inflammatory and angiogenic processes,” CELL TRANSPLANTATION, vol. 26, no. 12, pp. 1919–1930, 2018.
@article{8548592,
  abstract     = {Cancer patients treated with radiotherapy (RT) could develop severe late side effects that affect their quality of life. Long-term bowel complications after RT are mainly characterized by a transmural fibrosis that could lead to intestinal obstruction. Today, surgical resection is the only effective treatment. However, preoperative RT increases the risk of anastomotic leakage. In this study, we attempted to use mesenchymal stromal cells from adipose tissue (Ad-MSCs) to improve colonic anastomosis after high-dose irradiation. MSCs were isolated from the subcutaneous fat of rats, amplified in vitro, and characterized by flow cytometry. An animal model of late radiation side effects was induced by local irradiation of the colon. Colonic anastomosis was performed 4 wk after irradiation. It was analyzed another 4 wk later (i.e., 8 wk after irradiation). The Ad-MSC-treated group received injections several times before and after the surgical procedure. The therapeutic benefit of the Ad-MSC treatment was determined by colonoscopy and histology. The inflammatory process was investigated using Fluorine-182-Fluoro-2-Deoxy-d-Glucose Positron Emission Tomography and Computed Tomography (F-18-FDG-PET/CT) imaging and macrophage infiltrate analyses. Vascular density was assessed using immunohistochemistry. Results show that Ad-MSC treatment reduces ulcer size, increases mucosal vascular density, and limits hemorrhage. We also determined that 1 Ad-MSC injection limits the inflammatory process, as evaluated through F-18-FDG-PET-CT (at 4 wk), with a greater proportion of type 2 macrophages after iterative cell injections (8 wk). In conclusion, Ad-MSC injections promote anastomotic healing in an irradiated colon through enhanced vessel formation and reduced inflammation. This study also determined parameters that could be improved in further investigations.},
  author       = {Van de Putte, Dirk and Demarquay, Christelle and Van Daele, Elke and Moussa, Lara and Vanhove, Christian and Benderitter, Marc and Ceelen, Wim and Pattyn, Piet and Mathieu, Noëlle},
  issn         = {0963-6897},
  journal      = {CELL TRANSPLANTATION},
  keywords     = {STEM-CELLS,RECTAL-CANCER,RADIATION ENTEROPATHY,MESORECTAL EXCISION,COLORECTAL SURGERY,TISSUE ADHESIVES,RISK-FACTORS,THERAPY,LEAKAGE,INJURY},
  language     = {eng},
  number       = {12},
  pages        = {1919--1930},
  title        = {Adipose-derived mesenchymal stromal cells improve the healing of colonic anastomoses following high dose of irradiation through anti-inflammatory and angiogenic processes},
  url          = {http://dx.doi.org/10.1177/0963689717721515},
  volume       = {26},
  year         = {2018},
}

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