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Periplaneta americana extract promotes infectious diabetic ulcers wound healing by downregulation of LINC01133/SLAMF9

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Chinese Journal of Natural Medicines 2024年第7期22卷 608-618页

作者： YANG Yuhang HUANG Jun LI Xintian LIN Renjing WANG Xiaoyan XIAO Ge ZENG Juanni WANG Zhenquan Department of Anorectal Disease 1 The Second Affiliated Hospital of Hunan University of Traditional Chinese MedicineChangsha 410005China Department of Anorectal Disease 3 The Second Affiliated Hospital of Hunan University of Traditional Chinese MedicineChangsha 410005China laboratory of vascular biology and Translational Medicine Medical SchoolHunan University of Chinese Medicine/Hunan Provincial Key Laboratory of Vascular Biology and Translational MedicineChangsha 410208China

Wound healing in diabetic ulcers remains a significant clinical challenge,primarily due to bacterial infection and impaired *** americana extract(PAE)has been widely used to treat diabetic wounds,yet its underlying mechanisms are not fully *** study aimed to elucidate these mechanisms by analyzing long non-coding RNA(lncRNA)expressions in the wound tissues from diabetic anal fistula patients treated with or without PAE,using high-throughput *** blood monocytes from patients were differentiated into M0 macrophages with human macrophage colony-stimulating factor(hMCSF)and subsequently polarized into M1 macrophages with *** results indicated that LINC01133 and SLAMF9 were downregulated in wound tissues of patients treated with ***,PAE suppressed M1 macrophage polarization and enhanced human umbilical vein endothelial cell(HUVEC)proliferation,migration,and *** effects were diminished when LINC01133 or SLAMF9 were ***,LINC01133 was shown to upregulate SLAMF9 through interaction with *** of SLAMF9 reversed the effects of LINC01133 silencing on macrophage polarization and HUVEC *** conclusion,PAE facilitates the healing of infected diabetic ulcers by downregulating the LINC01133/SLAMF9 pathway.

关键词： Periplaneta americana extract Infectious diabetic ulcers M1 macrophage polarization LINC01133 SLAMF9

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Intermittent fasting boosts antitumor immunity by restricting CD11b^(+)Ly6C^(low)Ly6G^(low) cell viability through glucose metabolism in murine breast tumor model

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Food Science and Human Wellness 2024年第4期13卷 2327-2345页

作者： Chenghao Fu Zhehao Liang Zemiao Niu Ning Chen Yuemin Li Zhenhua Liang Yanwei Huo Hao Xi Rong Wang Yonghuan Yan Xiaoruo Gan Mengtian Wang Yun Huang Yan Zhang Mingming Gao Pin Lü Postdoctoral Station for Basic Medicine Cardiovascular Medical Science CenterDepartment of Cell BiologyKey Laboratory of Neural and Vascular Biology of Ministry of EducationHebei Medical UniversityShijiazhuang 050017China Hebei Key laboratory of Forensic Medicine College of Forensic MedicineHebei Medical UniversityShijiazhuang 050017China Hebei Food Safety Key laboratory Hebei Food Inspection and Research InstituteShijiazhuang 050091China laboratory of Lipid Metabolism Department of Biochemistry and Molecular BiologyKey Laboratory of Medical Biotechnology of Hebei ProvinceShijiazhuang 050017China

Intermittent fasting can benefit breast cancer patients undergoing chemotherapy or ***,it is still uncertain how to select immunotherapy drugs to combine with intermittent *** we observed that two cycles of fasting treatment significantly inhibited breast tumor growth and lung tissue metastasis,as well as prolonged overall survival in mice bearing 4T1 and 4T07 breast *** this process,both the immunosuppressive monocytic-(M-)and granulocytic-(G-)myeloid-derived suppressor cell(MDSC)decreased,accompanied by an increase in interleukin(IL)7R^(+)and granzyme B^(+)T cells in the tumor ***,we observed that Ly6G^(low)G-MDSC sharply decreased after fasting treatment,and the cell surface markers and protein mass spectrometry data showed potential therapeutic *** investigation revealed that glucose metabolism restriction suppressed the splenic granulocytemonocyte progenitor and the generation of colony-stimulating factors and IL-6,which both contributed to the accumulation of *** the other hand,glucose metabolism restriction can directly induce the apoptosis of Ly6G^(low)G-MDSC,but not Ly6G^(high)*** summary,these results suggest that glucose metabolism restriction induced by fasting treatment attenuates the immune-suppressive milieu and enhances the activation of CD3^(+)T cells,providing potential solutions for enhancing immune-based cancer interventions.

关键词： Intermittent fasting Ly6G^(low)myeloid-derived suppressor cell apoptosis Extramedullary hematopoiesis Colony stimulating factor Glucose metabolism restriction

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Bile acids and coronavirus disease 2019

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Acta Pharmaceutica Sinica B 2024年第5期14卷 1939-1950页

作者： Xiaoru Huang Xuening Liu Zijian Li Department of Pharmacy Peking University Third HospitalBeijing 100191China Department of Pharmaceutical Management and Clinical Pharmacy College of PharmacyPeking UniversityBeijing 100191China Department of Cardiology and Institute of vascular Medicine Peking University Third HospitalBeijing Key Laboratory of Cardiovascular Receptors ResearchKey Laboratory of Cardiovascular Molecular Biology and Regulatory PeptidesMinistry of HealthState Key Laboratory of Vascular Homeostasis and RemodelingPeking UniversityBeijing 100191China

The coronavirus disease 2019(COVID-19)pandemic,caused by severe acute respiratory syndrome coronavirus 2(SARS-CoV-2),has been significantly ***,long-term health effects and prevention strategy remain ***,it is essential to explore the pathophysiological mechanisms and intervention for SARS-CoV-2 *** research indicates a link between COVID-19 and bile acids,traditionally known for facilitating dietary fat *** bile acid ursodeoxycholic acid potentially protects against SARS-CoV-2 infection by inhibiting the farnesoid X receptor,a bile acid nuclear *** activation of G-protein-coupled bile acid receptor,another membrane receptor for bile acids,has also been found to regulate the expression of angiotensin-converting enzyme 2,the receptor through which the virus enters human ***,we review the latest basic and clinical evidence linking bile acids to SARS-CoV-2,and reveal their complicated pathophysiological mechanisms.

关键词： Bile acids COVID-19 Farnesoid X receptor G-protein-coupled bile acid receptor SARS-CoV-2 Angiotensin-converting enzyme 2 Ursodeoxycholic acid Chenodeoxycholic acid

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A Novel Poly(3-hexylthiophene) Engineered Interface for Electrochemical Monitoring of Ascorbic Acid During the Occurrence of Glutamate-Induced Brain Cytotoxic Edemas

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Research 2024年第1期2023卷 301-313页

作者： Zexuan Meng Yuchan Zhang Lu Yang Shuang Zhao Qiang Zhou Jiajia Chen Jiuxi Sui Jian Wang Lizhong Guo Luyue Chang Jialing He Guixue Wang Guangchao Zang Institute of Life Science and Laboratory of Tissue and Cell BiologyLab Teaching and Management CenterChongqing Medical UniversityChongqing 400016China Key laboratory for Biorheological Science and Technology of Ministry of Education State and Local Joint Engineering Laboratory for Vascular ImplantsBioengineering College of Chongqing UniversityChongqing 400030China Jinfeng laboratory Chongqing 401329China Department of Pathophysiology Chongqing Medical UniversityChongqingChina

Although neuroelectrochemical sensing technology offers unique benefits for neuroscience research,its application is limited by substantial interference in complex brain environments while ensuring biosafety *** this study,we introduced poly(3-hexylthiophene)(P3HT)and nitrogen-doped multiwalled carbon nanotubes(N-MWCNTs)to construct a composite membrane-modified carbon fiber microelectrode(CFME/P3HT-N-MWCNTs)for ascorbic acid(AA)*** microelectrode presented good linearity,selectivity,stability,antifouling,and biocompatibility and exhibited great performance for application in neuroelectrochemical ***,we applied CFME/P3HT-N-MWCNTs to monitor AA release from in vitro nerve cells,ex vivo brain slices,and in vivo living rat brains and determined that glutamate can induce cell edema and AA *** also found that glutamate activated the N-methyl-d-aspartic acid receptor,which enhanced Na^(+) and Cl^(−) inflow to induce osmotic stress,resulting in cytotoxic edema and ultimately AA *** study is the first to observe the process of glutamate-induced brain cytotoxic edema with AA release and to reveal the *** work can benefit the application of P3HT in in vivo implant microelectrode construction to monitor neurochemicals,understand the molecular basis of nervous system diseases,and discover certain biomarkers of brain diseases.

关键词： release microelectrode Engine

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Meningeal lymphatic vasculature,a general target for glioblastoma therapy?

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Fundamental Research 2024年第2期4卷 267-269页

作者： Changping Zhou Han Xu Jincai Luo laboratory of vascular biology Institute of Molecular MedicineCollege of Future TechnologyBeijing Key Laboratory of Cardiometabolic Molecular MedicinePeking UniversityBeijing 100871China

Glioblastoma(GBM)causes nearly universal mortality as a result of the failure of conventional therapies including surgical resection,targeted radiation therapy,and *** increasingly important treatment option is combining immunotherapy with other therapies in both preclinical and clinical *** central nervous system(CNS)has been historically considered an immune privileged area,but increasing evidence,including the recent rediscovery of meningeal lymphatic vessels(MLVs),has overturned this *** are populated by multiple immune cells and connect the CNS to the periphery by draining cerebrospinal fluid with soluble CNS antigens and immune cells into cervical lymph *** the past few years,more and more studies have indicated that MLVs are involved in the regulation of inflammation and the immune response in the pathogenesis of various CNS diseases including ***,we explore the critical interlinkages between MLVs and GBM therapies including chemotherapy,radiotherapy and immunotherapy,and propose the meningeal lymphatic vasculature as a general target for GBM therapy.

关键词： Meningeal lymphatic vessels Glioblastoma Immunity vascular endothelial growth factor C Immune modulation

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High-density lipoprotein regulates angiogenesis by affecting autophagy via miRNA-181a-5p

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Science China(Life Sciences) 2024年第2期67卷 286-300页

作者： Bi-Ang Kang Hua-Ming Li Ya-Ting Chen Meng-Jie Deng Yan Li Yue-Ming Peng Jian-Jun Gao Zhi-Wei Mo Jia-Guo Zhou Zhi-Jun Ou Jing-Song Ou Division of Cardiac Surgery Cardiovascular Diseases InstituteThe First Affiliated HospitalSun Yat-sen UniversityGuangzhou 510080China National-Guangdong Joint Engineering laboratory for Diagnosis and Treatment of vascular Diseases Guangzhou 510080China NHC key laboratory of Assisted Circulation(Sun Yat-sen University) Guangzhou 510080China Guangdong Provincial Engineering and Technology Center for Diagnosis and Treatment of vascular Diseases Guangzhou 510080China Division of vascular Surgery The First Affiliated HospitalSun Yat-sen UniversityGuangzhou 510080China Department of Pharmacology Cardiac and Cerebral Vascular Research CenterZhongshan School of MedicineSun Yat-sen UniversityGuangzhou 510080China Division of Hypertension and vascular Diseases Department of CardiologyCardiovascular Diseases InstituteThe First Affiliated HospitalSun Yat-sen UniversityGuangzhou 510080China Guangdong Provincial Key laboratory of Brain Function and Disease Zhongshan School of MedicineSun Yat-sen UniversityGuangzhou 510080China

We previously demonstrated that normal high-density lipoprotein(nHDL)can promote angiogenesis,whereas HDL from patients with coronary artery disease(d HDL)is dysfunctional and impairs *** plays a critical role in angiogenesis,and HDL regulates ***,it is unclear whether n HDL and d HDL regulate angiogenesis by affecting *** cells(ECs)were treated with n HDL and d HDL with or without an autophagy ***,endothelial nitric oxide synthase(e NOS)expression,miRNA expression,nitric oxide(NO)production,superoxide anion(O2^(·-))generation,EC migration,and tube formation were evaluated.n HDL suppressed the expression of miR-181a-5p,which promotes autophagy and the expression of e NOS,resulting in NO production and the inhibition of O2^(·-)generation,and ultimately increasing in EC migration and tube formation.d HDL showed opposite effects compared to n HDL and ultimately inhibited EC migration and tube *** found that autophagy-related protein 5(ATG5)was a direct target of ***5 silencing or miR-181a-5p mimic inhibited n HDL-induced autophagy,e NOS expression,NO production,EC migration,tube formation,and enhanced O2^(·-)generation,whereas overexpression of ATG5 or miR-181a-5p inhibitor reversed the above effects of d ***5 expression and angiogenesis were decreased in the ischemic lower limbs of hypercholesterolemic low-density lipoprotein receptor null(LDLr^(-/-))mice when compared to C57BL/6 ***5 overexpression improved angiogenesis in ischemic hypercholesterolemic LDLr^(-/-)*** together,nHDL was able to stimulate autophagy by suppressing miR-181a-5p,subsequently increasing e NOS expression,which generated NO and promoted *** contrast,d HDL inhibited angiogenesis,at least partially,by increasing miR-181a-5p expression,which decreased autophagy and e NOS expression,resulting in a decrease in NO production and an increase in O2^(·-)*** findings reveal a nov

关键词： high-density lipoprotein angiogenesis autophagy ATG5 miRNA endothelial nitric oxide synthase

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Increase of PCSK9 expression in diabetes promotes VEGFR2ubiquitination to inhibit endothelial function and skin wound healing

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Science China Life Sciences 2024年

作者： Jian-Jun Gao Fang-Yuan Wu Yu-Jia Liu Le Li Yi-Jun Lin Yue-Ting Kang Yue-Ming Peng Yi-Fang Liu Chen Wang Zhen-Sheng Ma Yang Cao Hong-Yu Cao Zhi-Wei Mo Yan Li Jing-Song Ou Zhi-Jun Ou Division of Cardiac Surgery Cardiovascular Diseases Institute The First Affiliated Hospital Sun Yat-sen University National-Guangdong Joint Engineering laboratory for Diagnosis and Treatment of vascular Diseases NHC key Laboratory of Assisted Circulation and Vascular Diseases (Sun Yat-sen University) Key Laboratory of Assisted Circulation and Vascular Diseases Chinese Academy of Medical Sciences Guangdong Provincial Engineering and Technology Center for Diagnosis and Treatment of Vascular Diseases Division of Hypertension and vascular Diseases Department of Cardiology Heart Center The First Affiliated Hospital Sun Yat-sen University Division of vascular Surgery The First Affiliated Hospital Sun Yat-sen University Guangdong Provincial Key laboratory of Brain Function and Disease Zhongshan School of Medicine Sun Yat-sen University

Diabetic foot ulcers（DFUs） are a serious vascular disease. Currently, no effective methods are available for treating DFUs. Pro-protein convertase subtilisin/kexin type 9（PCSK9） regulates lipid levels to promote atherosclerosis. However, the role of PCSK9 in DFUs remains unclear. In this study, we found that the expression of PCSK9 in endothelial cells（ECs） increased significantly under high glucose（HG）stimulation and in diabetic plasma and vessels. Specifically, PCSK9 promotes the E3 ubiquitin-protein ligase NEDD4 binding to vascular endothelial growth factor receptor 2（VEGFR2）, which led to the ubiquitination of VEGFR2, resulting in its degradation and downregulation in ECs. Furthermore, PCSK9 suppresses the expression and activation of AKT, endothelial nitric oxide synthase（eNOS）, and ERK1/2, leading to decreased nitric oxide（NO） production and increased superoxide anion(O2·-) generation, which impairs vascular endothelial function and angiogenesis. Importantly, using evolocumab to limit the increase in PCSK9 expression blocked the HG-induced inhibition of NO production and the increase in O2·-production, as well as inhibited the phosphorylation and expression of AKT, eNOS, and ERK1/***, evolocumab improved vascular endothelial function and angiogenesis, and promoted wound healing in diabetes. Our findings suggest that targeting PCSK9 is a novel therapeutic approach for treating DFUs.

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LLMs in medicine:The need for advanced evaluation systems for disruptive technologies

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The Innovation 2024年第3期5卷 1-2页

作者： Yi-Da Tang Er-Dan Dong Wen Gao Department of Cardiology and Institute of vascular Medicine Peking University Third HospitalBeijing 100191China State Key laboratory of vascular Homeostasis and Remodeling Peking UniversityBeijing 100191China University of Health and Rehabilitation Sciences Qingdao 266000China Peking University Beijing 100871China

In an era of rapid advancements in artificial intelligence(AI),the potential role of large language models(LLMs)in the medical field is receiving increasing *** progression of this technology not only highlights upcoming revolutionary changes in medical services but also offers unprecedented opportunities for the health care sector.1 LLMs’formidable capability to process natural language opens vast prospects for application in the medical field,including in the contexts of emergency triage,geriatric care,and digital medical workflows.

关键词： dis highlights services

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The incidence rate and histological characteristics of intimal hyperplasia in elastase-induced experimental abdominal aortic aneurysms in mice

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Animal Models and Experimental Medicine 2024年第3期7卷 388-395页

作者： Meng Li Panpan Wei Kexin Li Haole Liu Naqash Alam Haiwen Hou Jie Deng Baohui Xu Enqi Liu Sihai Zhao Yankui Li laboratory Animal Center Xi'an Jiaotong UniversityXi'anChina Department of vascular Surgery The Second Hospital of Tianjin Medical UniversityTianjinChina Department of Cardiology The Second Affiliated Hospital of Xi'an Jiaotong UniversityXi'anChina Department of vascular Surgery Stanford University School of MedicineStanfordCaliforniaUSA

Intimal hyperplasia(IH)is a negative vascular remodeling after arterial *** occasionally occurs in elastase-induced abdominal aortic aneurysm(AAA)mouse *** study aims to clarify the incidence and histological characteristics of IH in aneurysmal mice.A retrospective study was conducted by including 42 male elastaseinduced mouse AAA *** IH incidence,aortic diameters with or without IH,and hyperplasia lesional features of mice were *** 42 elastase-induced AAA mouse models,10 mice developed mild IH(24%)and severe IH was found in only 2 mice(5%).The outer diameters of the AAA segments in mice with and without IH did not show significant *** mild and severe IH lesions show strong smooth muscle cell positive staining,but endothelial cells were occasionally observed in severe IH *** was obvious macrophage infiltration in the IH lesions of the AAA mouse models,especially in mice with severe ***,only a lower numbers of T cells and B cells were found in the IH *** cell-secreted matrix metalloproteinases(MMP)2 was highly expressed in all IH lesions,but MMP9 was only overexpressed in severe *** conclusion,this study is the first to demonstrate the occurrence of aneurysmal IH and its histological characteristics in an elastaseinduced mouse AAA *** will help researchers better understand this model,and optimize it for use in AAA-related research.

关键词： abdominal aortic aneurysms animal model histology intimal hyperplasia

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Temporal and spatial regulation of biomimetic vascularization in 3D-printed skeletal muscles

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Bio-Design and Manufacturing 2024年第5期7卷 597-610页

作者： Minxuan Jia Tingting Fan Tan Jia Xin Liu Heng Liu Qi Gu Key laboratory of Organ Regeneration and Reconstruction State Key Laboratory of Membrane BiologyInstitute of ZoologyChinese Academy of SciencesBeijing 100101China Beijing Institute for Stem Cell and Regenerative Medicine Beijing 100101China University of Chinese Academy of Sciences Beijing 100049China State Key laboratory of Stem Cell and Reproductive biology Institute of ZoologyChinese Academy of SciencesBeijing 100101China Department of Orthopaedics Beijing Jishuitan HospitalCapital Medical UniversityBeijing 100035China

In the intricate skeletal muscle tissue,the symbiotic relationship between myotubes and their supporting vasculature is pivotal in delivering essential oxygen and *** study explored the complex interplay between skeletal muscle and endothelial cells in the vascularization ofmuscle *** harnessing the capabilities of three-dimensional(3D)bioprinting and modeling,we developed a novel approach involving the co-construction of endothelial and muscle cells,followed by their subsequent *** findings highlight the importance of the interaction dynamics between these two cell ***,introducing endothelial cells during the advanced phases of muscle differentiation enhanced myotube ***,it stimulated the development of the vascular network,paving the way for the early stages of vascularized skeletal muscle *** methodology proposed in this study indicates the potential for constructing large-scale,physiologically aligned skeletal ***,it highlights the need for exploring the delicate equilibrium and mutual interactions between muscle and endothelial *** on the multicell-type interaction model,we can predict promising pathways for constructing even more intricate tissues or organs.

关键词： Skeletal muscle vascularization 3D bioprinting Cell interaction

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