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skeletal muscle as a molecular and cellular biomarker of disease progression in amyotrophic lateral sclerosis:a narrative review

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Neural Regeneration Research 2024年第4期19卷 747-753页

作者： Peter H.King Department of Neurology and Center for Neurodegeneration and Experimental Therapeutics The University of Alabama at BirminghamBirminghamALUSA Birmingham Veterans Affairs Medical Center BirminghamALUSA

Amyotrophic lateral sclerosis is a fatal multisystemic neurodegenerative disease with motor neurons being a primary *** progressive weakness is a hallmark feature of amyotrophic lateral sclerosis,there is considerable heterogeneity,including clinical presentation,progression,and the underlying triggers for disease *** on longitudinal studies with families harboring amyotrophic lateral sclerosis-associated gene mutations,it has become apparent that overt disease is preceded by a prodromal phase,possibly in years,where compensatory mechanisms delay symptom *** 85-90%of amyotrophic lateral sclerosis is sporadic,there is a strong need for identifying biomarkers that can detect this prodromal phase as motor neurons have limited capacity for *** Food and Drug Administration-approved therapies work by slowing the degenerative process and are most effective early in the *** muscle,including the neuromuscular junction,manifests abnormalities at the earliest stages of the disease,before motor neuron loss,making it a promising source for identifying biomarkers of the prodromal *** accessibility of muscle through biopsy provides a lens into the distal motor system at earlier stages and in real *** advent of“omics”technology has led to the identification of numerous dysregulated molecules in amyotrophic lateral sclerosis muscle,ranging from coding and non-coding RNAs to proteins and *** technology has opened the door for identifying biomarkers of disease activity and providing insight into disease mechanisms.A major challenge is correlating the myriad of dysregulated molecules with clinical or histological progression and understanding their relevance to presymptomatic phases of *** are two major goals of this *** first is to summarize some of the biomarkers identified in human amyotrophic lateral sclerosis muscle that have a clinicopathological correlation with disease activi

关键词： amyotrophic lateral sclerosis biomarkers clinicopathological correlation disease progression muscle biomarkers neurogenic atrophy neuromuscular junction non-coding RNAs presymptomatic stages skeletal muscle SOD1G93A mouse model

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SWIR FluorescenceImaging In Vivo Monitoring and Evaluating Implanted M2 Macrophages in skeletal muscle Regeneration

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Engineering 2024年第2期33卷 283-294页

作者： Mo Chen Yuzhou Chen Sijia Feng Shixian Dong Luyi Sun Huizhu Li Fuchun Chen Nguyen Thi Kim Thanh Yunxia Li Shiyi Chen You Wang Jun Chen Sports Medicine Institute of Fudan University Department of Sports MedicineHuashan HospitalFudan UniversityShanghai 200040China Department of Bone and Joint Surgery Department of OrthopedicsRenji HospitalSchool of MedicineShanghai Jiaotong UniversityShanghai 200127China Department of Anatomy and Physiology School of MedicineShanghai Jiao Tong UniversityShanghai 200025China Key Laboratory of Infrared System Detection&Imaging Technology Shanghai Institute of Technical PhysicsChinese Academy of SciencesShanghai 200083China Biophysics Group Department of Physics and AstronomyUniversity College LondonLondon WC1E 6BTUK Healthcare Biomagnetic and Nanomaterials Laboratories University College LondonLondon W1S 4BSUK

skeletal muscle has a robust regeneration ability that is impaired by severe injury,disease,and *** in a decline in skeletal muscle ***,improving skeletal muscle regeneration is a key challenge in treating skeletal muscle-related *** to their significant role in tissue regeneration,implantation of M2 macrophages(M2MФ)has great potential for improving skeletal muscle ***,we present a short-wave infrared(SWIR)fluorescence imaging technique to obtain more in vivo information for an in-depth evaluation of the skeletal muscle regeneration effect after M2MФ*** fluorescence imaging was employed to track implanted M2MФin the injured skeletal muscle of mouse *** is found that the implanted M2MФaccumulated at the injury site for two ***,SWIR fluorescence imaging of blood vessels showed that M2MФimplantation could improve the relative perfusion ratio on day 5(1.09±0.09 vs 0.85±0.05;p=0.01)and day 9(1.38±0.16 vs 0.95±0.03;p=0.01)post-injury,as well as augment the degree of skeletal muscle regencration on day 13 ***,multiple linear regression analyses determined that post-injury time and relative perfusion ratio could be used as predictive indicators to evaluate skeletal muscle *** results provide more in vivo details about M2MФin skeletal muscle regeneration and confirm that M2MФcould promote angiogenesis and improve the degree of skeletal muscle repair,which will guide the research and development of M2MФimplantation to improve skeletal muscle regeneration.

关键词： In vivo Short-wave infrared skeletal muscle Macrophage Regeneration

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Biology of Hippo signaling pathway:skeletal muscle development and beyond

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Journal of Integrative Agriculture 2024年第6期23卷 1825-1838页

作者： Shuqi Qin Chaocheng Li Haiyan Lu Yulong Feng Tao Guo Yusong Han Yongsheng Zhang Zhonglin Tang Xinjiang Characteristic Livestock Breeding and Reproduction Team College of Animal Science and TechnologyShihezi UniversityShihezi 832003China Lanzhou Veterinary Research Institute Chinese Academy of Agricultural SciencesLanzhou 730046China Kunpeng Institute of Modern Agriculture at Foshan Foshan 528226China Shenzhen Branch Guangdong Laboratory for Lingnan Modern AgricultureAgricultural Genomics Institute at ShenzhenChinese Academy of Agricultural SciencesShenzhen 518124China

Global demand for farm animals and their meat products i.e.,pork,chicken and other livestock meat,is steadily *** the ongoing life science research and the rapid development of biotechnology,it is a great opportunity to develop advanced molecular breeding markers to efficiently improve animal meat production *** is an important study subject because of its crucial role in the regulation of organ *** recent years,with the increase of research on Hippo signaling pathway,the integrative application of multi-omics technologies such as genomics,transcriptomics,proteomics,and metabolomics can help promote the in-depth involvement of Hippo signaling pathway in skeletal muscle development *** Hippo signaling pathway plays a key role in many biological events,including cell division,cell migration,cell proliferation,cell differentiation,cell apoptosis,as well as cell adhesion,cell polarity,homeostasis,maintenance of the face of mechanical overload,*** influence on the development of skeletal muscle has important research value for enhancing the efficiency of animal husbandry *** this study,we traced the origin of the Hippo pathway,comprehensively sorted out all the functional factors found in the pathway,deeply analyzed the molecular mechanism of its function,and classified it from a novel perspective based on its main functional domain and mode of *** aim is to systematically explore its regulatory role throughout skeletal muscle *** specifically focus on the Hippo signaling pathway in embryonic stem cell development,muscle satellite cell fate determination,myogenesis,skeletal muscle meat production and organ size regulation,muscle hypertrophy and atrophy,muscle fiber formation and its transformation between different types,and *** roles in proliferation and regeneration are methodically summarized and analyzed *** summary and prospect of the Hippo signaling pathway within this a

关键词： Hippo skeletal muscle organ size myogenesis C2C12 livestock animals

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skeletal muscle metastasis from colorectal adenocarcinoma:A literature review

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World Journal of Gastrointestinal Surgery 2022年第7期14卷 696-705页

作者： Nikhil Kulkarni Ahmed Khalil Shruti Bodapati Department of General and Colorectal Surgery Lincoln County HospitalLincoln LN52QYUnited Kingdom Department of General Surgery Plymouth University HospitalsPlymouth PL68DHUnited Kingdom

BACKGROUND Colorectal adenocarcinoma is the third most common cancer *** accounts for almost 10%of all cancer-related *** muscle is a very unusual site for metastasis from colorectal cancers and is associated with a poor prognosis and high *** To review the literature for cases of skeletal muscle metastasis(SMM)from colorectal *** A systematic literature search using a validated search strategy was carried out to identify the incidence of SMM associated with colorectal *** studies identified were tabulated in a PRISMA,and data was extracted in a tabulated *** Twenty-nine studies were included in this literature *** was most commonly detected in the thigh *** of the tumours had originated from the rectum or the right *** histopathology of the primary tumour was generally *** mean time interval between the primary tumour and onset of SMM was 22 *** 3 cases,asymptomatic SMM had been picked up by advanced imaging systems,like fluorodeoxyglucose-positron emission tomography *** SMM from colorectal adenocarcinomas is a rare ***,it is possible that the low incidence could be due to *** use of advanced imaging techniques and a high index of clinical suspicion might increase the reporting of SMM from colorectal adenocarcinoma.

关键词： skeletal muscle Metastasis Colorectal cancer Adenocarcinoma Systematic review

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Bioinspired soft actuators with highly ordered skeletal muscle structures

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Bio-Design and Manufacturing 2022年第1期5卷 174-188页

作者： Yingjie Wang Chunbao Liu Luquan Ren Lei Ren School of Mechanical and Aerospace Engineering Jilin UniversityChangchun 130022China School of Mechanical Aerospace and Civil EngineeringUniversity of ManchesterManchester M139PLUK Key Laboratory of Bionic Engineering Ministry of EducationJilin UniversityChangchun 130022China

Mammals such as humans develop skeletal muscles composed of muscle fibers and connective tissue,which have mechanical properties that enable power output with three-dimensional motion when *** muscle-like actuators developed to date,such as the McKibben artificial muscle,often focus sole contractile elements and have rarely addressed the contribution of flexible connective tissue that forms an integral part of the structure and morphology of biological ***,we present a class of pneumatic muscle-like actuators,termed highly mimetic skeletal muscle(HimiSK)actuator,that consist of parallelly arranged contractile units in a flexible matrix inspired by ultrasonic measurements on skeletal *** contractile units act as a muscle fiber to produce active shortening force,and the flexible matrix functions as connective tissue to generate passive *** application of positive pressure to the contractile units can produce a linear contraction and *** this actuator,we assign different flexible materials as contractile units and a flexible matrix,thus forming five mold *** actuators feature three-dimensional motion on activation and present both intrinsic force-velocity and force-length characteristics that closely resebmle those of a biological *** output and tetanic force produced by harder contractile units improve the maximum output force by up to about 41.3%and the tetanic force by up to about 168%.Moreover,high displacement and velocity can be generated by a softer flexible matrix,with the improvement of maximum displacement up to about 33.3%and velocity up to about 73%.The results demonstrate that contractile units play a crucial role in force generation,while the flexible matrix has a significant impact on force transmission and deformation;the final force,velocity,displacement,and three-dimensional motion results from the interplay of contractile units,fluid and flexible *** approach introduces a m

关键词： Bioinspired Soft robotics Actuator skeletal muscle

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Nutritional regulation of skeletal muscle energy metabolism, lipid accumulation and meat quality in pigs

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Animal Nutrition 2023年第3期14卷 185-192页

作者： Enfa Yan Jianxin Guo Jingdong Yin State Key Laboratory of Animal Nutrition College of Animal Science and TechnologyChina Agricultural UniversityBeijing 100193China

The quality of pork determines consumers’ purchase intention, which directly affects the economic value of pork. Minimizing the proportion of inferior pork and producing high quality pork are the ultimate goals of the pig industry. muscle energy metabolism, serving as a regulative hub in organism energy expenditure and storage as a fat deposit, is compatible with myofiber type composition, affecting meat color, intramuscular fat content, tenderness, p H values and drip loss. Increasing data illustrate that dietary nutrients and bioactive ingredients affect muscle energy metabolism, white adipose browning and fat distribution, and myofiber type composition in humans, and rodents. Recently, some studies have shown that modulating muscle energy metabolism and lipid accumulation through nutritional approaches could effectively improve meat quality. This article reviews the progress and development in this field, and specifically discusses the impacts of dietary supply of amino acids, lipids, and gut microbiota as well as maternal nutrition on skeletal muscle energy metabolism, lipid accumulation and meat quality of pigs, so as to provide comprehensive overview with respect to effective avenues for improving meat quality.

关键词： Amino acids Fatty acid profile Gut microbiota Maternal nutrition skeletal muscle Meat quality

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Gestational heat stress alters skeletal muscle gene expression profiles and vascularity in fetal pigs in a sexually dimorphic manner

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Journal of Animal Science and Biotechnology 2022年第6期13卷 1785-1798页

作者： Weicheng Zhao Mark P.Green Christina D.Marth Fan Liu Hieu H.Le Gordon S.Lynch Alan W.Bell Brian J.Leury Frank R.Dunshea Jeremy J.Cottrell School of Agriculture and Food Faculty of Veterinary and Agricultural SciencesThe University of MelbourneParkvilleVIC 3010Australia School of BioSciences Faculty of ScienceThe University of MelbourneParkvilleVIC 3010Australia Melbourne Veterinary School Faculty of Veterinary and Agricultural SciencesThe University of MelbourneWerribeeVIC 3030Australia Rivalea Australia Pty Ltd CorowaNSW 2646Australia Centre for muscle Research Department of Anatomy and PhysiologyThe University of MelbourneParkville 3010Australia Department of Animal Science Cornell UniversityIthacaNY 14853-4801USA Faculty of Biological Sciences The University of LeedsLeeds LS29JTUK

Background: There is evidence that sow heat stress(HS) during gestation affects fetal development with implications for impaired muscle growth. We have previously demonstrated that maternal HS during early to midgestation compromised muscle fibre hyperplasia in developing fetal pigs. Thus, we hypothesised these phenotypic changes are associated with a change in expression of genes regulating fetal skeletal muscle development and metabolism. To test this, at d 60 of gestation, RNA sequencing and immunohistochemistry were performed on fetal longissimus dorsi(LD) muscle biopsies collected from pregnant gilts that had experienced either thermoneutral control(CON, 20 ℃, n = 7 gilts, 18 LD samples) or controlled HS(cyclic 28 to 33 ℃, n = 8 gilts, 23 LD samples)conditions for 3 ***: A total of 282 genes were differentially expressed between the HS and CON groups in female LD muscles(false discovery rate(FDR) ≤ 0.05), whereas no differentially expressed genes were detected in male LD muscles between the two groups(FDR > 0.05). Gestational HS increased the expression of genes associated with transcription corepressor activity, adipogenesis cascades, negative regulation of angiogenesis and pro-inflammatory signalling in female LD muscles. Immunohistochemical analyses revealed a decreased muscle vascularity density in fetuses from HS group for both sexes compared to those from the CON group(P = 0.004).Conclusions: These results reveal gilt HS during early to mid-gestation altered gene expression profiles in fetal LD muscles in a sexually dimorphic manner. The molecular responses, including transcription and angiogenesis repressions and enhanced adipogenesis cascades, were exclusively observed in females. However, the associated reductions in muscle vascularity were observed independently of sexes. Collectively this may indicate female fetal pigs are more adaptive to gestational HS in terms of gene expression changes, and/or there may be sexually dimorphic differences

关键词： Adipogenesis Angiogenesis Fetal pig Gestation Heat stress Sexual dimorphism skeletal muscle Sows

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Kaempferol improves glucose uptake in skeletal muscle via an AMPK-dependent mechanism

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Food Science and Human Wellness 2023年第6期12卷 2087-2094页

作者： William T.Moore Jing Luo Dongmin Liu Department of Human Nutrition Foods and ExerciseCollege of Agricultural and Life SciencesVirginia TechBlacksburg 24060USA Department of Biology and Chemistry Liberty UniversityLynchburg 24515USA Department of Human Nutrition Foods and ExerciseVirginia Tech1981 Kraft DriveCorporate Research CenterBlacksburg 24061USA

Insulin resistance is a hallmark of type-2 diabetes(T2D)*** skeletal muscle(SkM)is the major tissue for insulin-mediated glucose disposal,insulin resistance in SkM is considered a major risk factor for developing ***,the identifi cation of compounds that enhance the ability of SkM to take up glucose is a promising strategy for preventing *** previous work showed that kaempferol,a fl avonol present in many foods,improves insulin sensitivity in obese mice,however,the mechanism underlying this beneficial action remains ***,we show that kaempferol directly stimulates glucose uptake and prevents lipotoxicity-impaired glucose uptake in primary human *** stimulates Akt phosphorylation in a time-dependent manner in human SkM *** effect of kaempferol on glucose uptake was blunted by inhibition of glucose transporter 4,phosphoinositide 3-kinase(PI3K),or *** addition,kaempferol induced AMPK phosphorylation,and inhibition of AMPK prevented kaempferol-stimulated Akt *** vivo,kaempferol administration induced rapid glucose disposal accompanied with increased Akt and AMPK phosphorylation in SkM tissue of the *** together,these fi ndings suggest that kaempferol stimulates glucose uptake in SkM via an AMPK/Akt dependent mechanism,and it may be a viable therapeutic agent for insulin resistance.

关键词： Kaempferol skeletal muscle AMPK Akt Insulin resistance

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Clemastine in remyelination and protection of neurons and skeletal muscle after spinal cord injury

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Neural Regeneration Research 2023年第5期18卷 940-946页

作者： Ali Myatich Azizul Haque Christopher Sole Naren L.Banik Department of Microbiology and Immunology Medical University of South CarolinaCharlestonSCUSA Department of Neurosurgery Medical University of South CarolinaCharlestonSCUSA Ralph H.Johnson Veterans Administration Medical Center CharlestonSCUSA Department of Health and Human Performance The CitadelCharlestonSCUSA

Spinal cord injuries affect nearly five to ten individuals per million every year. Spinal cord injury causes damage to the nerves, muscles, and the tissue surrounding the spinal cord. Depending on the severity, spinal injuries are linked to degeneration of axons and myelin, resulting in neuronal impairment and skeletal muscle weakness and atrophy. The protection of neurons and promotion of myelin regeneration during spinal cord injury is important for recovery of function following spinal cord injury. Current treatments have little to no effect on spinal cord injury and neurogenic muscle loss. Clemastine, an Food and Drug Administration-approved antihistamine drug, reduces inflammation, protects cells, promotes remyelination, and preserves myelin integrity. Recent clinical evidence suggests that clemastine can decrease the loss of axons after spinal cord injury, stimulating the differentiation of oligodendrocyte progenitor cells into mature oligodendrocytes that are capable of myelination. While clemastine can aid not only in the remyelination and preservation of myelin sheath integrity, it also protects neurons. However, its role in neurogenic muscle loss remains unclear. This review discusses the pathophysiology of spinal cord injury, and the role of clemastine in the protection of neurons, myelin, and axons as well as attenuation of skeletal muscle loss following spinal cord injury.

关键词： axonal damage clemastine myelination neuronal death oligodendrocytes skeletal muscle spinal cord injury

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Transcriptomic analysis elucidates the enhanced skeletal muscle mass, reduced fat accumulation, and metabolically benign liver in human follistatin-344 transgenic pigs

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Journal of Integrative Agriculture 2022年第9期21卷 2675-2690页

作者： LONG Ke-ren LI Xiao-kai ZHANG Ruo-wei GU Yi-ren DU Min-jie XING Xiang-yang DU Jia-xiang MAI Miao-miao WANG Jing JIN Long TANG Qian-zi HU Si-lu MA Ji-deng WANG Xun PAN Deng-ke LI Ming-zhou Institute of Animal Genetics and Breeding College of Animal Science and TechnologySichuan Agricultural UniversityChengdu 611130P.R.China Animal Breeding and Genetics Key Laboratory of Sichuan Province Pig Science InstituteSichuan Animal Science AcademyChengdu 610066P.R.China Institute of Animal Sciences Chinese Academy of Agricultural SciencesBeijing 100193P.R.China Institute of Organ Transplantation Sichuan Academy of Medical Sciences&Sichuan Provincial People's HospitalChengdu 610072P.R.China Chengdu Clonorgan Biotechnology Co. Ltd.Chengdu 610041P.R.China

Follistatin(FST) is an important regulator of skeletal muscle growth and adipose deposition through its ability to bind to several members of the transforming growth factor-β(TGF-β) superfamily, and thus may be a good candidate for future animal breeding programs. However, the molecular mechanisms underlying the phenotypic changes have yet to be clarified in pig. We generated transgenic(TG) pigs that express human FST specifically in skeletal muscle tissues and characterized the phenotypic changes compared with the same tissues in wild-type pigs. The TG pigs showed increased skeletal muscle growth, decreased adipose deposition, and improved metabolism status(Pskeletal muscle hypertrophy, and depot-specific oxidative metabolism changes in psoas major muscle. Furthermore, the lipid metabolism-related process was changed in adipose tissue in the TG pigs. Gene set enrichment analysis revealed that genes related to lipid synthesis, lipid catabolism, and lipid storage were down-regulated(P<0.01) in the TG pigs for subcutaneous fat, whereas genes related to lipid catabolism were significantly up-regulated(P<0.05) in the TG pigs for retroperitoneal fat compared with their expression levels in wild-type pigs. In liver, genes related to the TGF-β signaling pathway were over-represented in the TG pigs, which is consistent with the inhibitory role of FST in regulating TGF-β signaling. Together, these results provide new insights into the molecular mechanisms underlying the phenotypic changes in pig.

关键词： follistatin transgenic pig transcriptome skeletal muscle liver adipose

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