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Angiotensin-converting enzyme 2 and AMPK/mTOR pathway in the treatment of liver fibrosis:Should we consider further implications?

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World Journal of Gastroenterology 2024年第18期30卷 2391-2396页

作者： Michele Barone Section of Gastroenterology Department of Precision and Regenerative Medicine-Jonian Area-University of BariBari 70124Italy

This editorial contains comments on the article by Zhao et al in print in the World Journal of *** mechanisms responsible for hepatic fibrosis are also involved in ***,we recapitulated the complexity of the renin-angiotensin system,discussed the role of hepatic stellate cell(HSC)autophagy in liver fibrogenesis,and analyzed the possible implications in the development of hepatocarcinoma(HCC).Angiotensin-converting enzyme inhibitors and angiotensin receptor blockers definitively contribute to reducing hepatic fibrogenesis,whereas their involvement in HCC is more evident in experimental conditions than in human ***-converting enzyme 2(ACE2),and its product Angiotensin(Ang)1-7,not only regulate HSC autophagy and liver fibrosis,but they also represent potential targets for unexplored applications in the field of ***,ACE2 overexpression inhibits HSC autophagy through the AMP-activated protein kinase(AMPK)/mammalian target of rapamycin(mTOR)*** this case,Ang 1-7 acts binding to the MasR,and its agonists could modulate this ***,since AMPK utilizes different targets to suppress the mTOR downstream complex mTOR complex 1 effectively,we still need to unravel the entire pathway to identify other potential targets for the therapy of fibrosis and liver cancer.

关键词： Renin-angiotensin system Liver fibrosis Hepatic stellate cells Autophagy Hepatocellular carcinoma

Multifunctional glycolipids as multi-targeting therapeutics for neural regeneration

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Neural Regeneration Research 2024年第4期19卷 707-708页

作者： Yutaka Itokazu department of Neuroscience and regenerative medicine Medical College of GeorgiaAugusta UniversityAugustaGAUSA

Many patients with neurodegenerative diseases,such as Alzheimer’s(AD)and Parkinson’s(PD)diseases suffer from disease progression without any satisfying clinical intervention,likely due to our lack of knowledge on how normal aging impacts the pathogenic mechanisms of these debilitating diseases.A growing body of literature has emerged in recent years that clearly demonstrates the involvement of glycolipids in the protein-oligomerization of neurodegenerative *** hypothesize that changes in glycolipids composition are a common mechanism underlying the shift from healthy brain aging to the neuropathological processes of neurodegenerative diseases.

关键词： lipids involvement diseases

Risk of hepatic decompensation from hepatitis B virus reactivation in hematological malignancy treatments

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World Journal of Gastroenterology 2024年第25期30卷 3147-3151页

作者： Michele Barone Section of Gastroenterology Department of Precision and Regenerative Medicine-Jonian Area-University of BariBari 70124Italy

In this editorial,we discussed the apparent discrepancy between the findings described by Colapietro et al,in their case report and data found in the *** et al reported a case of hepatitis B virus(HBV)-related hepatic decompensation in a patient with chronic myeloid leukemia and a previously resolved HBV infection who was receiving Bruton’s tyrosine kinase(BTK)inhibitor *** of all,we recapitulated the main aspects of the immune system involved in the response to HBV infection in order to underline the role of the innate and adaptive response,focusing our attention on the protective role of *** then carefully analyzed literature data on the risk of HBV reactivation(HBVr)in patients with previous HBV infection who were treated with either tyrosine kinase inhibitors or BTK inhibitors for their hematologic *** on literature data,we suggested that several factors may contribute to the different risks of HBVr:The type of hematologic malignancy;the type of therapy(BTK inhibitors,especially second-generation,seem to be at a higher risk of HBVr than those with tyrosine kinase inhibitors);previous exposure to an anti-CD20 as first-line therapy;and ethnicity and HBV ***,the warning regarding HBVr in the specific setting of patients with hematologic malignancies requires further investigation.

关键词： Hematological malignancy Hepatitis Hepatitis B virus-DNA Bruton’s tyrosine kinase Previously resolved hepatitis B virus infection

CircZFR promotes colorectal cancer progression via stabilizing BCLAF1 and regulating the miR-3127-5p/RTKN2 axis

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Science China Life Sciences 2024年第9期67卷 1881-1898页

作者： Jiaxin Chen Huijuan Wang Jianbin Xu Engeng Chen Qing Meng Jiawei Wang Haoyi Xiang Wei Zhou Ge Shan Zhenyu Ju Zhangfa Song department of Colorectal Surgery Sir Run Run Shaw Hospital Zhejiang University School of Medicine Key Laboratory of Biological Treatment of Zhejiang Province department of Breast Surgery the Second Affiliated Hospital Zhejiang University School of Medicine department of Orthopedic Surgery the Second Affiliated Hospital Zhejiang University School of Medicine department of Pulmonary and Critical Care medicine Regional medical center for National Institute of Respiratory Disease Sir Run Run Shaw Hospital Zhejiang University School of Medicine Key Laboratory of regenerative medicine of Ministry of Education Institute of Aging and Regenerative Medicine Jinan University

Aberrant expression of circular RNAs(circ RNAs) is frequently linked to colorectal cancer(CRC). Here, we identified circ ZFR as a promising biomarker for CRC diagnosis and prognosis. Circ ZFR was upregulated in CRC tissues and serum exosomes and its level was linked to cancer incidence, advanced-stages, and metastasis. In both in vitro and in vivo settings, circ ZFR promoted the growth and spread while suppressing apoptosis of CRC. Exosomes with circ ZFR overexpression promoted the proliferation and migration of cocultured CRC cells. Mechanistically,epithelial splicing regulatory protein 1(ESRP1) in CRC cells may enhance the production of circ ZFR. BCL2-associated transcription factor 1(BCLAF1) bound to circ ZFR, which prevented its ubiquitinated degradation. Additionally, circ ZFR sponged mi R-3127-5p to boost rhotekin 2(RTKN2) expression. Our TCP1-CD-QDs nanocarrier was able to carry and deliver circ ZFR si RNA(si-circ ZFR) to the vasculature of CRC tissues and cells, which inhibited the growth of tumors in patient-derived xenograft(PDX) models. Taken together, our results show that circ ZFR is an oncogenic circ RNA, which promotes the development and spread of CRC in a BCLAF1 and mi R-3127-5p-dependent *** ZFR is a possible serum biopsy marker for the diagnosis and a desirable target for further treatment of CRC.

关键词： circZFR exosome ESRP1 BCLAF1 miR-3127-5p nanoparticle (NP)

Bioceramic scaffolds with two-step internal/external modification of copper-containing polydopamine enhance antibacterial and alveolar bone regeneration capability

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2024年第1期25卷 65-82页

作者： Xiaojian JIANG Lihong LEI Weilian SUN Yingming WEI Jiayin HAN Shuaiqi ZHONG Xianyan YANG Zhongru GOU Lili CHEN department of Oral medicine the Second Affiliated HospitalZhejiang University School of MedicineHangzhou310009China Bio-nanomaterials and regenerative medicine Research Division Zhejiang–California International Nanosystem InstituteZhejiang UniversityHangzhou310058China

Magnesium-doped calcium silicate(CS)bioceramic scaffolds have unique advantages in mandibular defect repair;however,they lack antibacterial properties to cope with the complex oral ***,for the first time,the CS scaffold was functionally modified with a novel copper-containing polydopamine(PDA(Cu^(2+)))rapid deposition method,to construct internally modified(*P),externally modified(@PDA),and dually modified(*P@PDA)*** morphology,degradation behavior,and mechanical properties of the obtained scaffolds were evaluated in *** results showed that the CS*P@PDA had a unique micro-/nano-structural surface and appreciable mechanical *** the prolonged immersion stage,the release of copper ions from the CS*P@PDA scaffolds was rapid in the early stage and exhibited long-term sustained *** in vitro evaluation revealed that the release behavior of copper ions ascribed an excellent antibacterial effect to the CS*P@PDA,while the scaffolds retained good cytocompatibility with improved osteogenesis and angiogenesis ***,the PDA(Cu^(2+))-modified scaffolds showed effective early bone regeneration in a critical-size rabbit mandibular defect ***,it was indicated that considerable antibacterial property along with the enhancement of alveolar bone regeneration can be imparted to the scaffold by the two-step PDA(Cu^(2+))modification,and the convenience and wide applicability of this technique make it a promising strategy to avoid bacterial infections on implants.

关键词： Copper-containing polydopamine Modification Antibacterial property Bone regeneration Angiogenesis Bioceramic scaffold

Effect of weight-adjusted antimicrobial antibiotic prophylaxis on postoperative dosage and surgical site infection incidence in total joint arthroplasty

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World Journal of Orthopedics 2024年第4期15卷 318-320页

作者： Ashim Gupta Vijay Kumar Jain department of Orthopaedics and regenerative medicine Future BiologicsLawrencevilleGA 30043United States department of Orthopaedics South Texas Orthopaedic Research Institute(STORI Inc.)LaredoTX 78045United States department of regenerative medicine BioIntegrateLawrencevilleGA 30043United States department of Orthopaedics and regenerative medicine Regenerative OrthopaedicsNoida 201301India department of Orthopaedics Atal Bihari Vajpayee Institute of Medical SciencesDr Ram Manohar Lohia HospitalNew Delhi 110001India

Surgical site infections(SSI)following total joint arthroplasty pose a significant concern for both providers and patients across the ***,administration of antimicrobial antibiotic prophylaxis is used throughout the world to reduce the incidence of ***,the correct dosage and frequency of administration remains *** this editorial,we emphasized the determination of the effect of administration of weight-adjusted antimicrobial antibiotic prophylaxis regime on the incidence of SSI and postoperative dosage reduction compared to the conventionally used regime during total joint *** results demonstrated similar efficacy between both regimes with respect to the incidence of *** addition,weight-adjustment led to reduced postoperative dosage and has the potential to reduce chances of achieving lower therapeutic concentration,drug resistance,drug toxicity,and costs.

关键词： Antibiotics Antimicrobial prophylaxis Weight-adjusted Surgical site infections Total joint arthroplasty Knee arthroplasty Hip arthroplasty

Autologous peripheral blood-derived orthobiologics:Different types and their effectiveness in managing knee osteoarthritis

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World Journal of Orthopedics 2024年第5期15卷 400-403页

Knees are the most commonly impacted weight-bearing joints in osteoarthritis(OA),affecting millions of people *** increasing life spans and obesity rates,the incidence of knee OA will further increase,leading to a significant increase in the economic *** treatment modalities utilized to manage knee OA have *** the last decade,the role of various autologous peripheral blood-derived orthobiologics(APBOs)for the treatment of knee OA has been extensively *** editorial provided an overview and focused on defining and shedding light on the current state of evidence based on the most recent published clinical studies concerning the use of APBO for the management of knee *** numerous studies have demonstrated promising results for these preparations,a notable gap exists in the comparative analysis of these diverse *** absence of head-to-head studies poses a considerable challenge for physicians/surgeons in determining the optimal preparation for managing knee OA and achieving sustained longterm ***,more adequately powered,multicenter,prospective,doubleblind,randomized controlled trials with longer follow-ups are needed to establish the long-term efficacy and to aid physicians/surgeons in determining the optimal APBO for the management of knee OA.

关键词： Knee osteoarthritis Platelet-rich plasma Platelet lysate Autologous conditioned serum Gold-induced cytokine Plasma rich in growth factors Growth factor concentrate Autologous protein solution Platelet-rich fibrin Hyperacute serum

Promising use of metformin in treating neurological disorders:biomarker-guided therapies

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Neural Regeneration Research 2024年第5期19卷 1045-1055页

作者： Allison Loan Charvi Syal Margarita Lui Ling He Jing Wang regenerative medicine Program Ottawa Hospital Research InstituteOttawaONCanada department of Biology Faculty of ScienceUniversity of OttawaOttawaONCanada department of Pediatrics and medicine Johns Hopkins Medical SchoolBaltimoreMDUSA department of Cellular and Molecular medicine Faculty of MedicineUniversity of OttawaOttawaONCanada University of Ottawa Brain and Mind Research Institute OttawaONCanada

Neurological disorders are a diverse group of conditions that affect the nervous system and include neurodegenerative diseases(Alzheimer’s disease,multiple sclerosis,Parkinson’s disease,Huntington’s disease),cerebrovascular conditions(stroke),and neurodevelopmental disorders(autism spectrum disorder).Although they affect millions of individuals around the world,only a limited number of effective treatment options are available *** most neurological disorders express mitochondria-related metabolic perturbations,metformin,a biguanide type II antidiabetic drug,has attracted a lot of attention to be repurposed to treat neurological disorders by correcting their perturbed energy ***,controversial research emerges regarding the beneficial/detrimental effects of metformin on these neurological *** that most neurological disorders have complex etiology in their pathophysiology and are influenced by various risk factors such as aging,lifestyle,genetics,and environment,it is important to identify perturbed molecular functions that can be targeted by metformin in these neurological *** molecules can then be used as biomarkers to stratify subpopulations of patients who show distinct molecular/pathological properties and can respond to metformin treatment,ultimately developing targeted *** this review,we will discuss mitochondria-related metabolic perturbations and impaired molecular pathways in these neurological disorders and how these can be used as biomarkers to guide metformin-responsive treatment for the targeted therapy to treat neurological disorders.

关键词： Alzheimer’s disease Huntington’s disease metformin mitochondrial perturbation multiple sclerosis neural degenerative diseases Parkinson’s disease stroke targeted therapy

New evidence for the epigenetic regulation of skeletal stem cells

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Science Bulletin 2024年第13期69卷 2004-2006页

作者： Liming Zhao Jun Xiao Charles K.F.Chan Institute for Stem Cell Biology and regenerative medicine Stanford University School of MedicineStanford CA 94305USA department of Surgery Division of Plastic and Reconstructive SurgeryStanford University School of MedicineStanford CA 94305USA department of Orthopaedic Surgery Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430030China

Skeletal stem cells(SSCs)are crucial for skeletal development and regeneration,yet the epigenetic regulation of these cells remains poorly *** studies have delineated the epigenetic landscape across the developmental trajectory of SSCs,highlighting the involvement of Ptip in regulating SSC *** skeletal system undergoes dynamic remodeling throughout *** stem cells(SSCs),residing within the skeleton and lineage-restricted,serve as a cellular reserve to foster development and maintain skeletal *** categorized within the broader mesenchymal stromal/stem cells(MSCs).

关键词： skeletal involvement maintain