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8篇 您的检索式:作者名="Shuchen GU"
    题名 作者 年代 出处 被引量
1TGF-β signaling in cancer显示文摘Shuchen Gu Xin-Hua Feng 2018Acta Biochimica et Biophysica Sinica2018,50,10:7
2Imaging for thinned perforator flap harvest:current status and future perspectives显示文摘With advances in anatomical knowledge and technology,increased interest has been directed towards reconstruction with enhanced aesthetic and functional outcomes.A myriad of thinned perforator flap harvest approaches have been developed for this purpose;however,concerns about jeopardizing their vascularity remain.To ensure optimum reconstructive outcome without hampering the flap’s microcirculation,it is important to make good use of the existing advanced imaging modalities that can provide clear visualization of perforator branches,particularly in the adipose layer,and an accurate assessment of flap perfusion.Therefore,this review will highlight the imaging modalities that have been utilized for harvesting a thinned perforator flap from these two perspectives,along with future insights into creating both functionally and aesthetically satisfying,yet simultaneously safe,thinned perforator flaps for the best reconstructive outcomes for patients.Yi Min Khoong Xin Huang Shuchen Gu Tao Zan 2021Burns & Trauma2021,9,1:3
3A case of scalp avulsion with prolonged ischemic time:indocyanine green angiography can aid in predicting replant survival显示文摘Background:Microsurgical replantation has become the most favorable treatment option for scalp avulsion.However,the accurate prediction of postoperative replant viability remains challenging.Case presentation:In this article,we showed that(indocyanine green angiography,ICGA)can provide a much more precise prediction of replant necrosis than conventional clinical assessment in a rare case of complete scalp avulsion with prolonged ischemia time.Conclusion:Clinical assessment of replant survival may be misleading in cases of complex tissue injuries and prolonged ischemic stress.This case provides insight into the promising utility of ICGA as an important adjuvant tool to better assess tissue perfusion and viability in scalp avulsion and possibly other types of replantation.Xin Huang Zhichao Wang Caiyue Liu Shuchen Gu Yashan Gao Xiangwen Xu Tao Zan 2019Burns & Trauma2019,7,1:2
4The role of macrophages in the formation of hypertrophic scars and keloids显示文摘Numerous studies have shown that macrophages can orchestrate the microenvironment from the early stage of wound healing to the later stages of scar formation.However,few reviews have highlighted the significance of macrophages during the formation of abnormal scars.The purpose of this reviewwas to outline the polarization of macrophages from early to late stage of pathological scar formation,focusing on spatiotemporal diversity of M1 and M2 macrophages.In this review,the role of macrophages in the formation of hypertrophic scars and keloids is summarized in detail.First,an increased number of M2 cells observed before injuries are significantly associated with susceptibility to abnormal scar pathogenesis.Second,decreased expression of M1 at the early stage and delayed expression of M2 at the late stage results in pathological scar formation.Third,M2 cells are highly expressed at both the margin and the superficial region,which is consistent with the invasive property of keloids.Finally,this review helps to characterize strategies for the prediction and prevention of pathological scar formation.Xiangwen Xu Shuchen Gu Xin Huang Jieyi Ren Yihui Gu Chengjiang Wei Xiang Lian Haizhou Li Yashan Gao Rui Jin Bin Gu Tao Zan Zhichao Wang 2020Burns & Trauma2020,8,1:0
5Pre-expanded Muscle-sparing Latissimus Dorsi Flaps for Reconstruction of Severe Scar Contractures on the Anterior Chest显示文摘Objective To investigate the utility of pre-expanded muscle-sparing latissimus dorsi flaps in the reconstruction of deformities secondary to severe scar contractures on the anterior chest.Methods The function of the latissimus dorsi was preserved with blood supply from the main or lateral branch of the thoracodorsal artery.The entire treatment period was divided into two stages,during which segmental latissimus dorsi flaps were pre-expanded in stage I and anterior chest scar deformities were reconstructed in stage II.During stage I,the musculocutaneous perforators arising from the lateral branch of the thoracodorsal artery were determined by ultrasound preoperatively;the flap design included the anterior segment of the latissimus dorsi supplied by the musculocutaneous perforators from the lateral branch;and a tissue expander was placed following flap dissection and then infused with saline intermittently for 4–6 months.In stage II,the chest scars were excised,and breast tissues were repositioned;the continuity of the medial branch of the thoracodorsal nerve to the muscle was preserved when reconstruction was performed using the segmental latissimus dorsi flaps supplied by the main or lateral branch of the thoracodorsal artery.Results From October 2010 to October 2019,21 patients(on 24 sides)underwent reconstructive procedures for extensive scar contractures on the anterior chest.All flaps survived,and their donor sites were sutured directly.During a follow-up of 3 months to 8 years,the flaps became soft and exhibited color similar to that of the adjacent tissues.The limited neck and shoulder movements improved,and postoperatively,all female patients were satisfied with the shape of their breasts.Additionally,neither apparent weakening on the adduction,internal rotation,or extension strength of the shoulder joint on the affected side nor marked depression deformity in the back was observed.Conclusion Pre-expanded muscle-sparing latissimus dorsi flaps with blood supply from the main or lateral branch of the thoracodorsal artery proved to be a desirable option for the reconstruction of extensive scar contractures on the anterior chest.Zhichao WANG Dujuan LIU Shuchen GU Baoxiang TIAN Tao ZAN Bin GU 2020Chinese Journal Of Plastic and Reconstructive Surgery2020,2,2:0
6WDR74 functions as a novel coactivator in TGF-β signaling显示文摘Smads are critical intracellular signal transducers for transforming growth factor-β(TGF-β) in mammalian cells. In this study, we have identified WD repeat-containing protein 74(WDR74) as a novel transcriptional coactivator for Smads in the canonical TGF-β signaling pathway. Through direct interactions with Smad proteins, WDR74 enhances TGF-β-mediated phosphorylation and nuclear accumulation of Smad2 and Smad3. Consequently, WDR74 enables stronger transcriptional responses and more robust TGF-β-induced physiological responses. Our findings have elucidated a critical role of WDR74 in regulating TGF-β signaling.Jinquan Liu Meiling Zhao Bo Yuan Shuchen Gu Mingjie Zheng Jian Zou Jianping Jin Ting Liu Xin-Hua Feng 2018Journal of Genetics and Genomics2018,45,12:0
7Imatinib blocks tyrosine phosphorylation of Smad4 and restores TGF-β growth-suppressive signaling in BCR-ABL1-positive leukemia显示文摘Loss of TGF-β-mediated growth suppression is a major contributor to the development of cancers,best exemplified by loss-offunction mutations in genes encoding components of the TGF-βsignaling pathway in colorectal and pancreatic cancers.Alternatively,gain-of-function oncogene mutations can also disrupt antiproliferative TGF-βsignaling.However,the molecular mechanisms underlying oncogene-induced modulation of TGF-βsignaling have not been extensively investigated.Here,we show that the oncogenic BCR-ABL1 of chronic myelogenous leukemia(CML)and the cellular ABL1 tyrosine kinases phosphorylate and inactivate Smad4 to block antiproliferative TGF-βsignaling.Mechanistically,phosphorylation of Smad4 at Tyr195,Tyr301,and Tyr322 in the linker region interferes with its binding to the transcription co-activator p300/CBP,thereby blocking the ability of Smad4 to activate the expression of cyclin-dependent kinase(CDK)inhibitors and induce cell cycle arrest.In contrast,the inhibition of BCR-ABL1 kinase with Imatinib prevented Smad4 tyrosine phosphorylation and re-sensitized CML cells to TGF-β-induced antiproliferative and pro-apoptotic responses.Furthermore,expression of phosphorylation-site-mutated Y195F/Y301F/Y322F mutant of Smad4 in Smad4-null CML cells enhanced antiproliferative responses to TGF-β,whereas the phosphorylation-mimicking Y195E/Y301E/Y322E mutant interfered with TGF-βsignaling and enhanced the in vivo growth of CML cells.These findings demonstrate the direct role of BCR-ABL1 tyrosine kinase in suppressing TGF-βsignaling in CML and explain how Imatinib-targeted therapy restored beneficial TGF-βanti-growth responses.Lijing Wang Shuchen Gu Fenfang Chen Yi Yu Jin Cao Xinran Li Chun Gao Yanzhen Chen Shuchong Yuan Xia Liu Jun Qin Bin Zhao Pinglong Xu Tingbo Liang Hongyan Tong Xia Lin Xin-Hua Feng 2023Signal Transduction and Targeted Therapy2023,8,4:0
8Fine-needle aspiration for periprosthetic fluid removal after implantation of a remote internal-port tissue expander显示文摘Background:Use of internal filling ports in tissue expander–based reconstructions are advantageous because of easier self-care,lower infection rates,and fewer instances of capsule formation.The appearance of periprosthetic fluid accumulation after internal-port tissue expander implantation is a common complication that warrants treatment.In this study,we introduced a noninvasive method using fine-needle aspiration(FNA)to remove fluids accumulated after implantation of a remote internal-port tissue expander.Methods:In this study,245 patients who underwent implantation of remote internal-port tissue expanders in our hospital from July 1,2012,to July 1,2019,were included and divided into two groups.In the control group,patients underwent tissue expander implantation before July 1,2016,and large quantities of fluids were removed with surgical aspiration procedures in most cases.In the FNA group,the patients underwent implantation after July 1,2016,and large quantities of fluids were removed first with the FNA procedure.Patients’demographic data,indications for FNA application,and related complications were collected and analyzed.Results:Overall,395 expanders were placed in 245 patients.Postoperative management was similar in both groups.Fluids were managed with 23 expanders in the control group and with 31 expanders in the FNA group.There was no difference in the fluid aspiration rate between the two groups.The surgical aspiration rate was 11.1%(23/208)in the control group.The success rate of FNA was 90.3%(28/31).In the FNA group,the surgical aspiration rate was 1.6%(3/187),which was significantly lower than that in the control group.There were no significant differences in complications between the two groups.Conclusion:FNA can be used for periprosthetic fluid removal after the implantation of a remote internal-port tissue expander in most cases.This method is more convenient and safer than surgical aspiration for the postoperative management of internal-port tissue expander implantation.Xifeng Lin Shuchen Gu Yashan Gao Hainan Zhu Bin Gu Feng Xie Qingfeng Li Tao Zan Haizhou Li 2021Chinese Journal Of Plastic and Reconstructive Surgery2021,3,3:0
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