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您的检索式：作者名="Zhangfa Song"
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| 1 | L1 drives HSC aging and affects prognosis of chronic myelomonocytic leukemia显示文摘Dear Editor,Telomere attrition is one of the hallmark of aging.Lategeneration Terc knockout mice exhibit impaired hematopoiesis,1 while the underling mechanisms remain poorly understood.Retrotransposon long interspersed element-1(L1)is the only human retrotransposable elements capable of autonomous retrotransposition,and evolutionarily inactive.Recent studies reported that L1 is derepressed during the aging process with redistribution and reorganization of the heterochromatin.2 Considering that telomere shortening can cause chromosome instability and rearrangements,3 we speculate that L1 may play a role in impaired hematopoiesis in telomere dysfunctional mice. | Ying Wang Jin-ping Zheng Ying Luo Junyi Wang Lingjie Xu Jinyong Wang John M.Sedivy Zhangfa Song Hu Wang Zhenyu Ju | 2020 | Signal Transduction and Targeted Therapy2020，5，1： | 0 |
| 2 | One-step fabrication of cell sheet-laden hydrogel for accelerated wound healing显示文摘Full-thickness skin wounds are have continued to be reconstructive challenges in dermal and skin appendage regeneration, and skin substitutes are promising tools for addressing these reconstructive procedures. Herein, the one-step fabrication of a cell sheet integrated with a biomimetic hydrogel as a tissue engineered skin for skin wound healing generated in one step is introduced. Briefly, cell sheets with rich extracellular matrix, high cell density, and good cell connections were integrated with biomimetic hydrogel to fabricate gel + human skin fibroblasts (HSFs) sheets and gel + human umbilical vein endothelial cells (HUVECs) sheets in one step for assembly as a cell sheet-laden hydrogel (CSH). The designed biomimetic hydrogel formed with UV crosslinking and ionic crosslinking exhibited unique properties due to the photo-generated aldehyde groups, which were suitable for integrating into the cell sheet, and ionic crosslinking reduced the adhesive force toward the substrate. These properties allowed the gel + cell sheet film to be easily released from the substrate. The cells in the harvested cell sheet maintained excellent viability, proliferation, and definite migration abilities inside the hydrogel. Moreover, the CSH was implanted into a full-thickness skin defects to construct a required dermal matrix and cell microenvironment. The wound closure rate reached 60.00 ± 6.26% on the 2nd day, accelerating mature granulation and dermis formation with skin appendages after 14 days. This project can provide distinct guidance and strategies for the complete repair and regeneration of full-thickness skin defects, and provides a material with great potential for tissue regeneration in clinical applications. | Huijuan Wang Deshun Sun Weiming Lin Chao Fang Kui Cheng Zhengzhou Pan Daping Wang Zhangfa Song Xiaojun Long | 2023 | Bioactive Materials2023，，10： | 0 |
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