Injected hMSCs transduced with CRAds suppressed the growth of pulmonary metastases, presumably through viral amplification in the hMSCs. Thus, hMSCs may be an effective platform for the targeted delivery of CRAds to distant cancer sites such as metastatic breast cancer.
The purpose of this study was to determine the effect of transplanted human mesenchymal stem cells (hMSCs) on wound healing. In this model, full-thickness cutaneous wounds were created by incision in the skin of adult New Zealand white rabbits and treated by transplanted human MSCs into the wounds. Wound healing was evaluated by histologic analysis and tensiometry over time. A total of 15 New Zealand white rabbits with 10 wounds per animal were examined in this study. Animals were treated with human MSCs and euthanized at 3, 7, 14, 21 and 80 days after manipulation. The hMSCs were labeled with a fluorescent dye (CM-DiI), suspended in PBS, and used to treat full-thickness incisional wounds in rabbit skin. Tensiometry and histology was used to characterize the wound-healing rate of the incisional wounds. These results showed that transplanted hMSCs significantly inhibited scar formation and increased the tensile strength of the wounds. Importantly, MSCs from genetically unrelated donors did not appear to induce an immunologic response. In conclusion, human mesenchymal stem cell therapy is a viable approach to significantly affect the course of normal cutaneous wound healing and significantly increase the tensile strength.
The use of a see and treat protocol for patients with HSIL (CIN 2) Pap smear results may be an acceptable treatment option because of a high incidence of CIN 2 and CIN 3.
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