1
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Shrager JB, Randle R, Lee M, Ahmed SS, Trope W, Lui N, Poultsides G, Liou D, Visser B, Norton JA, Nesbit SM, He H, Kapula N, Wallen B, Fatodu E, Sadeghi CA, Konsker HB, Elliott I, Guenthart B, Backhus L, Cooke R, Berry M, Tang H. JAK inhibition with tofacitinib rapidly increases contractile force in human skeletal muscle. Life Sci Alliance 2024; 7:e202402885. [PMID: 39122555 PMCID: PMC11316201 DOI: 10.26508/lsa.202402885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2024] [Revised: 08/02/2024] [Accepted: 08/02/2024] [Indexed: 08/12/2024] Open
Abstract
Reduction in muscle contractile force associated with many clinical conditions incurs serious morbidity and increased mortality. Here, we report the first evidence that JAK inhibition impacts contractile force in normal human muscle. Muscle biopsies were taken from patients who were randomized to receive tofacitinib (n = 16) or placebo (n = 17) for 48 h. Single-fiber contractile force and molecular studies were carried out. The contractile force of individual diaphragm myofibers pooled from the tofacitinib group (n = 248 fibers) was significantly higher than those from the placebo group (n = 238 fibers), with a 15.7% greater mean maximum specific force (P = 0.0016). Tofacitinib treatment similarly increased fiber force in the serratus anterior muscle. The increased force was associated with reduced muscle protein oxidation and FoxO-ubiquitination-proteasome signaling, and increased levels of smooth muscle MYLK. Inhibition of MYLK attenuated the tofacitinib-dependent increase in fiber force. These data demonstrate that tofacitinib increases the contractile force of skeletal muscle and offers several underlying mechanisms. Inhibition of the JAK-STAT pathway is thus a potential new therapy for the muscle dysfunction that occurs in many clinical conditions.
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Affiliation(s)
- Joseph B Shrager
- https://ror.org/00f54p054 Division of Thoracic Surgery, Department of Cardiothoracic Surgery, Stanford University School of Medicine, Stanford, CA, USA
- VA Palo Alto Healthcare System, Palo Alto, CA, USA
| | - Ryan Randle
- https://ror.org/00f54p054 Division of Thoracic Surgery, Department of Cardiothoracic Surgery, Stanford University School of Medicine, Stanford, CA, USA
- VA Palo Alto Healthcare System, Palo Alto, CA, USA
| | - Myung Lee
- https://ror.org/00f54p054 Division of Thoracic Surgery, Department of Cardiothoracic Surgery, Stanford University School of Medicine, Stanford, CA, USA
- VA Palo Alto Healthcare System, Palo Alto, CA, USA
| | - Syed Saadan Ahmed
- https://ror.org/00f54p054 Division of Thoracic Surgery, Department of Cardiothoracic Surgery, Stanford University School of Medicine, Stanford, CA, USA
- VA Palo Alto Healthcare System, Palo Alto, CA, USA
| | - Winston Trope
- https://ror.org/00f54p054 Division of Thoracic Surgery, Department of Cardiothoracic Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Natalie Lui
- https://ror.org/00f54p054 Division of Thoracic Surgery, Department of Cardiothoracic Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - George Poultsides
- https://ror.org/00f54p054 Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Doug Liou
- https://ror.org/00f54p054 Division of Thoracic Surgery, Department of Cardiothoracic Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Brendan Visser
- https://ror.org/00f54p054 Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Jeffrey A Norton
- https://ror.org/00f54p054 Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Shannon M Nesbit
- https://ror.org/00f54p054 Division of Thoracic Surgery, Department of Cardiothoracic Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Hao He
- https://ror.org/00f54p054 Division of Thoracic Surgery, Department of Cardiothoracic Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Ntemena Kapula
- https://ror.org/00f54p054 Division of Thoracic Surgery, Department of Cardiothoracic Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Bailey Wallen
- https://ror.org/00f54p054 Division of Thoracic Surgery, Department of Cardiothoracic Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Emmanuel Fatodu
- https://ror.org/00f54p054 Division of Thoracic Surgery, Department of Cardiothoracic Surgery, Stanford University School of Medicine, Stanford, CA, USA
- VA Palo Alto Healthcare System, Palo Alto, CA, USA
| | - Cheyenne A Sadeghi
- https://ror.org/00f54p054 Division of Thoracic Surgery, Department of Cardiothoracic Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Harrison B Konsker
- https://ror.org/00f54p054 Division of Thoracic Surgery, Department of Cardiothoracic Surgery, Stanford University School of Medicine, Stanford, CA, USA
- VA Palo Alto Healthcare System, Palo Alto, CA, USA
| | - Irmina Elliott
- https://ror.org/00f54p054 Division of Thoracic Surgery, Department of Cardiothoracic Surgery, Stanford University School of Medicine, Stanford, CA, USA
- VA Palo Alto Healthcare System, Palo Alto, CA, USA
| | - Brandon Guenthart
- https://ror.org/00f54p054 Division of Thoracic Surgery, Department of Cardiothoracic Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Leah Backhus
- https://ror.org/00f54p054 Division of Thoracic Surgery, Department of Cardiothoracic Surgery, Stanford University School of Medicine, Stanford, CA, USA
- VA Palo Alto Healthcare System, Palo Alto, CA, USA
| | - Roger Cooke
- Department of Biochemistry, University of California, San Francisco, CA, USA
| | - Mark Berry
- https://ror.org/00f54p054 Division of Thoracic Surgery, Department of Cardiothoracic Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Huibin Tang
- https://ror.org/00f54p054 Division of Thoracic Surgery, Department of Cardiothoracic Surgery, Stanford University School of Medicine, Stanford, CA, USA
- VA Palo Alto Healthcare System, Palo Alto, CA, USA
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2
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Bennett JL, Pratt AG, Dodds R, Sayer AA, Isaacs JD. Rheumatoid sarcopenia: loss of skeletal muscle strength and mass in rheumatoid arthritis. Nat Rev Rheumatol 2023; 19:239-251. [PMID: 36801919 DOI: 10.1038/s41584-023-00921-9] [Citation(s) in RCA: 31] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/27/2023] [Indexed: 02/19/2023]
Abstract
Sarcopenia, a disorder that involves the generalized loss of skeletal muscle strength and mass, was formally recognized as a disease by its inclusion in the International Classification of Diseases in 2016. Sarcopenia typically affects older people, but younger individuals with chronic disease are also at risk. The risk of sarcopenia is high (with a prevalence of ≥25%) in individuals with rheumatoid arthritis (RA), and this rheumatoid sarcopenia is associated with increased likelihood of falls, fractures and physical disability, in addition to the burden of joint inflammation and damage. Chronic inflammation mediated by cytokines such as TNF, IL-6 and IFNγ contributes to aberrant muscle homeostasis (for instance, by exacerbating muscle protein breakdown), and results from transcriptomic studies have identified dysfunction of muscle stem cells and metabolism in RA. Progressive resistance exercise is an effective therapy for rheumatoid sarcopenia but it can be challenging or unsuitable for some individuals. The unmet need for anti-sarcopenia pharmacotherapies is great, both for people with RA and for otherwise healthy older adults.
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Affiliation(s)
- Joshua L Bennett
- Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK.
- NIHR Newcastle Biomedical Research Centre, Newcastle University, Newcastle upon Tyne, UK.
- Musculoskeletal Unit, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK.
| | - Arthur G Pratt
- Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
- Musculoskeletal Unit, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
| | - Richard Dodds
- Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
- NIHR Newcastle Biomedical Research Centre, Newcastle University, Newcastle upon Tyne, UK
| | - Avan A Sayer
- Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
- NIHR Newcastle Biomedical Research Centre, Newcastle University, Newcastle upon Tyne, UK
| | - John D Isaacs
- Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
- NIHR Newcastle Biomedical Research Centre, Newcastle University, Newcastle upon Tyne, UK
- Musculoskeletal Unit, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
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3
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Pedrosa MB, Barbosa S, Vitorino R, Ferreira R, Moreira-Gonçalves D, Santos LL. Chemotherapy-Induced Molecular Changes in Skeletal Muscle. Biomedicines 2023; 11:biomedicines11030905. [PMID: 36979884 PMCID: PMC10045751 DOI: 10.3390/biomedicines11030905] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 03/10/2023] [Accepted: 03/13/2023] [Indexed: 03/17/2023] Open
Abstract
Paraneoplastic conditions such as cancer cachexia are often exacerbated by chemotherapy, which affects the patient’s quality of life as well as the response to therapy. The aim of this narrative review was to overview the body-composition-related changes and molecular effects of different chemotherapy agents used in cancer treatment on skeletal-muscle remodeling. A literature search was performed using the Web of Science, Scopus, and Science Direct databases and a total of 77 papers was retrieved. In general, the literature survey showed that the molecular changes induced by chemotherapy in skeletal muscle have been studied mainly in animal models and mostly in non-tumor-bearing rodents, whereas clinical studies have essentially assessed changes in body composition by computerized tomography. Data from preclinical studies showed that chemotherapy modulates several molecular pathways in skeletal muscle, including the ubiquitin–proteasome pathway, autophagy, IGF-1/PI3K/Akt/mTOR, IL-6/JAK/STAT, and NF-κB pathway; however, the newest chemotherapy agents are underexplored. In conclusion, chemotherapy exacerbates skeletal-muscle wasting in cancer patients; however, the incomplete characterization of the chemotherapy-related molecular effects on skeletal muscle makes the development of new preventive anti-wasting strategies difficult. Therefore, further investigation on molecular mechanisms and clinical studies are necessary.
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Affiliation(s)
- Mafalda Barbosa Pedrosa
- Associated Laboratory for Green Chemistry of the Network of Chemistry and Technology (LAQV-REQUIMTE), Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
- Research Centre in Physical Activity, Health and Leisure (CIAFEL), Faculty of Sport, University of Porto, 4200-450 Porto, Portugal
- Experimental Pathology and Therapeutics Group, Research Center (CI-IPOP)/RISE@CI-IPOP (Health Research Network), Portuguese Oncology Institute of Porto (IPO-Porto)/Porto Comprehensive Cancer Center (P.CCC), 4200-072 Porto, Portugal
- Correspondence: (M.B.P.); (L.L.S.)
| | - Samuel Barbosa
- Associated Laboratory for Green Chemistry of the Network of Chemistry and Technology (LAQV-REQUIMTE), Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
- Research Centre in Physical Activity, Health and Leisure (CIAFEL), Faculty of Sport, University of Porto, 4200-450 Porto, Portugal
- Experimental Pathology and Therapeutics Group, Research Center (CI-IPOP)/RISE@CI-IPOP (Health Research Network), Portuguese Oncology Institute of Porto (IPO-Porto)/Porto Comprehensive Cancer Center (P.CCC), 4200-072 Porto, Portugal
| | - Rui Vitorino
- Department of Medical Sciences, Institute of Biomedicine—iBiMED, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Rita Ferreira
- Associated Laboratory for Green Chemistry of the Network of Chemistry and Technology (LAQV-REQUIMTE), Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Daniel Moreira-Gonçalves
- Research Centre in Physical Activity, Health and Leisure (CIAFEL), Faculty of Sport, University of Porto, 4200-450 Porto, Portugal
- Laboratory for Integrative and Translational Research in Population Health (ITR), 4050-600 Porto, Portugal
| | - Lúcio Lara Santos
- Experimental Pathology and Therapeutics Group, Research Center (CI-IPOP)/RISE@CI-IPOP (Health Research Network), Portuguese Oncology Institute of Porto (IPO-Porto)/Porto Comprehensive Cancer Center (P.CCC), 4200-072 Porto, Portugal
- Correspondence: (M.B.P.); (L.L.S.)
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Csete ME. Basic Science of Frailty-Biological Mechanisms of Age-Related Sarcopenia. Anesth Analg 2021; 132:293-304. [PMID: 32769382 DOI: 10.1213/ane.0000000000005096] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Aging is associated with loss of function across organ systems, contributing to systemic frailty. Loss of skeletal muscle mass and function, in particular, is a major source of frailty in older adults, severely impacting quality of life. Some loss of muscle mass and strength with aging is inevitable, and sarcopenia, the severe loss of muscle mass with aging, is common. Sarcopenia is determined in part by genetics but can be modified by lifestyle choices. The pathophysiologic underpinnings of sarcopenia are complex and multifactorial. In this review, the causes of sarcopenia are surveyed at the systems, cell, subcellular, and molecular levels with emphasis on the interplay between these various causes of this degenerative disease process.
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Affiliation(s)
- Marie E Csete
- From the Department of Anesthesiology, Keck School of Medicine, University of Southern California, Los Angeles, California
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5
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Myofiber necroptosis promotes muscle stem cell proliferation via releasing Tenascin-C during regeneration. Cell Res 2020; 30:1063-1077. [PMID: 32839552 PMCID: PMC7784988 DOI: 10.1038/s41422-020-00393-6] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Accepted: 08/03/2020] [Indexed: 02/07/2023] Open
Abstract
Necroptosis, a form of programmed cell death, is characterized by the loss of membrane integrity and release of intracellular contents, the execution of which depends on the membrane-disrupting activity of the Mixed Lineage Kinase Domain-Like protein (MLKL) upon its phosphorylation. Here we found myofibers committed MLKL-dependent necroptosis after muscle injury. Either pharmacological inhibition of the necroptosis upstream kinase Receptor Interacting Protein Kinases 1 (RIPK1) or genetic ablation of MLKL expression in myofibers led to significant muscle regeneration defects. By releasing factors into the muscle stem cell (MuSC) microenvironment, necroptotic myofibers facilitated muscle regeneration. Tenascin-C (TNC), released by necroptotic myofibers, was found to be critical for MuSC proliferation. The temporary expression of TNC in myofibers is tightly controlled by necroptosis; the extracellular release of TNC depends on necroptotic membrane rupture. TNC directly activated EGF receptor (EGFR) signaling pathway in MuSCs through its N-terminus assembly domain together with the EGF-like domain. These findings indicate that necroptosis plays a key role in promoting MuSC proliferation to facilitate muscle regeneration.
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6
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Narla S, Oska S, Lyons AB, Lim HW, Hamzavi IH. Association of myalgias with compounded topical Janus kinase inhibitor use in vitiligo. JAAD Case Rep 2020; 6:637-639. [PMID: 32613059 PMCID: PMC7317685 DOI: 10.1016/j.jdcr.2020.05.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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7
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Abbas MN, Kausar S, Zhao E, Cui H. Suppressors of cytokine signaling proteins as modulators of development and innate immunity of insects. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2020; 104:103561. [PMID: 31785267 DOI: 10.1016/j.dci.2019.103561] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Revised: 11/21/2019] [Accepted: 11/22/2019] [Indexed: 06/10/2023]
Abstract
The suppressors of cytokine signaling (SOCS) are a family of intracellular molecules. Many members of this family have been reported to be involved in various physiological processes in invertebrates and vertebrates (e.g., developmental process and immune response). The functions of SOCS molecules seem to remain conserved in animals throughout evolutionary history. The members of the SOCS family play vital roles in the physiological processes by regulating the extent and duration of signaling activities of both Janus Kinase-Signal Transducer and Activators of Transcription (JAK-STAT) and epidermal growth factor receptor (EGFR) pathways in vivo. So far, in different insect species, a variable number of SOCS and SOCS box domain-containing proteins have been identified. These proteins are categorized into different types based on their sequence diversification, leading to an alteration in structure and regulatory function. The biological roles of the many SOCS proteins have been established as a negative or positive regulator of the signaling pathways, as mentioned earlier. Here, we discussed the existing knowledge on the SOCS proteins and their involvement in different biological functions in insects, and future perspectives to further elucidate their physiological roles.
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Affiliation(s)
- Muhammad Nadeem Abbas
- State Key Laboratory of Silkworm Genome Biology, College of Biotechnology, Southwest University, Chongqing, 400715, China; Key Laboratory of Sericulture Biology and Genetic Breeding, Ministry of Agricultural and Rural Affairs, Southwest University, Chongqing, 400715, China; Medical Research Institute, Southwest University, Chongqing, 400715, China.
| | - Saima Kausar
- State Key Laboratory of Silkworm Genome Biology, College of Biotechnology, Southwest University, Chongqing, 400715, China; Key Laboratory of Sericulture Biology and Genetic Breeding, Ministry of Agricultural and Rural Affairs, Southwest University, Chongqing, 400715, China; Medical Research Institute, Southwest University, Chongqing, 400715, China.
| | - Erhu Zhao
- State Key Laboratory of Silkworm Genome Biology, College of Biotechnology, Southwest University, Chongqing, 400715, China; Key Laboratory of Sericulture Biology and Genetic Breeding, Ministry of Agricultural and Rural Affairs, Southwest University, Chongqing, 400715, China; Medical Research Institute, Southwest University, Chongqing, 400715, China.
| | - Hongjuan Cui
- State Key Laboratory of Silkworm Genome Biology, College of Biotechnology, Southwest University, Chongqing, 400715, China; Key Laboratory of Sericulture Biology and Genetic Breeding, Ministry of Agricultural and Rural Affairs, Southwest University, Chongqing, 400715, China; Medical Research Institute, Southwest University, Chongqing, 400715, China.
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8
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Mukund K, Subramaniam S. Skeletal muscle: A review of molecular structure and function, in health and disease. WILEY INTERDISCIPLINARY REVIEWS. SYSTEMS BIOLOGY AND MEDICINE 2020; 12:e1462. [PMID: 31407867 PMCID: PMC6916202 DOI: 10.1002/wsbm.1462] [Citation(s) in RCA: 216] [Impact Index Per Article: 54.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Revised: 07/03/2019] [Accepted: 07/03/2019] [Indexed: 12/11/2022]
Abstract
Decades of research in skeletal muscle physiology have provided multiscale insights into the structural and functional complexity of this important anatomical tissue, designed to accomplish the task of generating contraction, force and movement. Skeletal muscle can be viewed as a biomechanical device with various interacting components including the autonomic nerves for impulse transmission, vasculature for efficient oxygenation, and embedded regulatory and metabolic machinery for maintaining cellular homeostasis. The "omics" revolution has propelled a new era in muscle research, allowing us to discern minute details of molecular cross-talk required for effective coordination between the myriad interacting components for efficient muscle function. The objective of this review is to provide a systems-level, comprehensive mapping the molecular mechanisms underlying skeletal muscle structure and function, in health and disease. We begin this review with a focus on molecular mechanisms underlying muscle tissue development (myogenesis), with an emphasis on satellite cells and muscle regeneration. We next review the molecular structure and mechanisms underlying the many structural components of the muscle: neuromuscular junction, sarcomere, cytoskeleton, extracellular matrix, and vasculature surrounding muscle. We highlight aberrant molecular mechanisms and their possible clinical or pathophysiological relevance. We particularly emphasize the impact of environmental stressors (inflammation and oxidative stress) in contributing to muscle pathophysiology including atrophy, hypertrophy, and fibrosis. This article is categorized under: Physiology > Mammalian Physiology in Health and Disease Developmental Biology > Developmental Processes in Health and Disease Models of Systems Properties and Processes > Cellular Models.
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Affiliation(s)
- Kavitha Mukund
- Department of BioengineeringUniversity of CaliforniaSan DiegoCalifornia
| | - Shankar Subramaniam
- Department of Bioengineering, Bioinformatics & Systems BiologyUniversity of CaliforniaSan DiegoCalifornia
- Department of Computer Science and EngineeringUniversity of CaliforniaSan DiegoCalifornia
- Department of Cellular and Molecular Medicine and NanoengineeringUniversity of CaliforniaSan DiegoCalifornia
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Mehta AS, Singh A. Insights into regeneration tool box: An animal model approach. Dev Biol 2019; 453:111-129. [PMID: 30986388 PMCID: PMC6684456 DOI: 10.1016/j.ydbio.2019.04.006] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 04/04/2019] [Accepted: 04/09/2019] [Indexed: 12/20/2022]
Abstract
For ages, regeneration has intrigued countless biologists, clinicians, and biomedical engineers. In recent years, significant progress made in identification and characterization of a regeneration tool kit has helped the scientific community to understand the mechanism(s) involved in regeneration across animal kingdom. These mechanistic insights revealed that evolutionarily conserved pathways like Wnt, Notch, Hedgehog, BMP, and JAK/STAT are involved in regeneration. Furthermore, advancement in high throughput screening approaches like transcriptomic analysis followed by proteomic validations have discovered many novel genes, and regeneration specific enhancers that are specific to highly regenerative species like Hydra, Planaria, Newts, and Zebrafish. Since genetic machinery is highly conserved across the animal kingdom, it is possible to engineer these genes and regeneration specific enhancers in species with limited regeneration properties like Drosophila, and mammals. Since these models are highly versatile and genetically tractable, cross-species comparative studies can generate mechanistic insights in regeneration for animals with long gestation periods e.g. Newts. In addition, it will allow extrapolation of regenerative capabilities from highly regenerative species to animals with low regeneration potential, e.g. mammals. In future, these studies, along with advancement in tissue engineering applications, can have strong implications in the field of regenerative medicine and stem cell biology.
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Affiliation(s)
- Abijeet S Mehta
- Department of Biology, University of Dayton, Dayton, OH, 45469, USA
| | - Amit Singh
- Department of Biology, University of Dayton, Dayton, OH, 45469, USA; Premedical Program, University of Dayton, Dayton, OH, 45469, USA; Center for Tissue Regeneration and Engineering at Dayton (TREND), University of Dayton, Dayton, OH, 45469, USA; The Integrative Science and Engineering Center, University of Dayton, Dayton, OH, 45469, USA; Center for Genomic Advocacy (TCGA), Indiana State University, Terre Haute, IN, USA.
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10
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Cui W, Liu CX, Wang J, Zhang YC, Shen Q, Feng ZH, Wu J, Li JX. An oleanolic acid derivative reduces denervation-induced muscle atrophy via activation of CNTF-mediated JAK2/STAT3 signaling pathway. Eur J Pharmacol 2019; 861:172612. [PMID: 31421088 DOI: 10.1016/j.ejphar.2019.172612] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Revised: 08/10/2019] [Accepted: 08/14/2019] [Indexed: 02/07/2023]
Abstract
Denervation caused by sciatic nerve injury has brought great harm to the patients, especially denervation-induced muscle atrophy. The body stress produces a large number of Schwann cells when the sciatic nerve is injured, and the cells secrete some cytokines including ciliary neurotrophic factor (CNTF) that not only play a role in promoting the repair of sciatic nerve, but also maintain the normal physiological function of the muscles surrounding the damaged nerves. CNTF upregulates janus kinase 2 (JAK2) and signal transducers and activators of transcription 3 (STAT3) signals in myoblasts, and consequently accelerates the proliferation and differentiation of myoblasts. This effect on myoblasts is the most effective way to relieve muscle atrophy. Therefore, increasing CNTF is a promising direction to improve muscle atrophy. In the present study, an oleanolic acid derivative, HA-19, increased the proliferation of Schwann cells, and elevated CNTF production of the cells. HA-19 up-regulated the phosphorylation of JAK2 and STAT3 not only by directly acting on myoblasts, but also by increasing the secretion of CNTF of Schwann cells; and consequently, promoted the proliferation and differentiation of myoblasts. In denervation-induced muscle atrophy mice model, treatment with HA-19 significantly increased the weights of tibialis anterior (TA), gastrocnemius (Gastroc.), extensor digitorum longus (EDL), soleus and quadriceps (Quad.) under atrophied state. And, very interestingly, these muscles under normal condition were also strengthened by HA-19. Our finding demonstrated that HA-19 has a great potential as a lead compound for the drug discovery of anti-denervation-induced muscle atrophy.
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Affiliation(s)
- Wei Cui
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Chen-Xi Liu
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Jie Wang
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Yu-Chao Zhang
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Qi Shen
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Zhen-Hua Feng
- The Center of Diagnosis and Treatment for Joint Disease, Drum Tower Hospital Affiliated to Medical School of Nanjing University, Nanjing, 210008, China
| | - Jing Wu
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China.
| | - Jian-Xin Li
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China.
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Perner F, Perner C, Ernst T, Heidel FH. Roles of JAK2 in Aging, Inflammation, Hematopoiesis and Malignant Transformation. Cells 2019; 8:cells8080854. [PMID: 31398915 PMCID: PMC6721738 DOI: 10.3390/cells8080854] [Citation(s) in RCA: 127] [Impact Index Per Article: 25.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 08/05/2019] [Accepted: 08/06/2019] [Indexed: 12/22/2022] Open
Abstract
Clonal alterations in hematopoietic cells occur during aging and are often associated with the establishment of a subclinical inflammatory environment. Several age-related conditions and diseases may be initiated or promoted by these alterations. JAK2 mutations are among the most frequently mutated genes in blood cells during aging. The most common mutation within the JAK2 gene is JAK2-V617F that leads to constitutive activation of the kinase and thereby aberrant engagement of downstream signaling pathways. JAK2 mutations can act as central drivers of myeloproliferative neoplasia, a pre-leukemic and age-related malignancy. Likewise, hyperactive JAK-signaling is a hallmark of immune diseases and critically influences inflammation, coagulation and thrombosis. In this review we aim to summarize the current knowledge on JAK2 in clonal hematopoiesis during aging, the role of JAK-signaling in inflammation and lymphocyte biology and JAK2 function in age-related diseases and malignant transformation.
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Affiliation(s)
- Florian Perner
- Innere Medizin 2, Hämatologie und Onkologie, Universitätsklinikum Jena, 07747 Jena, Germany
- Leibniz-Institute on Aging-Fritz Lipmann Institute (FLI), 07745 Jena, Germany
- Dana-Farber Cancer Institute, Department of Pediatric Oncology, Harvard University, Boston, MA 02467, USA
| | - Caroline Perner
- Center for Immunology & Inflammatory Diseases, Massachusetts General Hospital, and Harvard Medical School, Boston, 02129 MA, USA
| | - Thomas Ernst
- Innere Medizin 2, Hämatologie und Onkologie, Universitätsklinikum Jena, 07747 Jena, Germany
| | - Florian H Heidel
- Innere Medizin 2, Hämatologie und Onkologie, Universitätsklinikum Jena, 07747 Jena, Germany.
- Leibniz-Institute on Aging-Fritz Lipmann Institute (FLI), 07745 Jena, Germany.
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Fate decision of satellite cell differentiation and self-renewal by miR-31-IL34 axis. Cell Death Differ 2019; 27:949-965. [PMID: 31332295 DOI: 10.1038/s41418-019-0390-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2018] [Revised: 06/13/2019] [Accepted: 06/26/2019] [Indexed: 12/11/2022] Open
Abstract
Quiescent satellite cells (SCs) that are activated to produce numerous myoblasts underpin the complete healing of damaged skeletal muscle. How cell-autonomous regulatory mechanisms modulate the balance among cells committed to differentiation and those committed to self-renewal to maintain the stem cell pool remains poorly explored. Here, we show that miR-31 inactivation compromises muscle regeneration in adult mice by impairing the expansion of myoblasts. miR-31 is pivotal for SC proliferation, and its deletion promotes asymmetric cell fate segregation of proliferating cells, resulting in enhanced myogenic commitment and re-entry into quiescence. Further analysis revealed that miR-31 posttranscriptionally suppresses interleukin 34 (IL34) mRNA, the protein product of which activates JAK-STAT3 signaling required for myogenic progression. IL34 inhibition rescues the regenerative deficiency of miR-31 knockout mice. Our results provide evidence that targeting miR-31 or IL34 activities in SCs could be used to counteract the functional exhaustion of SCs in pathological conditions.
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13
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Tényi Á, Cano I, Marabita F, Kiani N, Kalko SG, Barreiro E, de Atauri P, Cascante M, Gomez-Cabrero D, Roca J. Network modules uncover mechanisms of skeletal muscle dysfunction in COPD patients. J Transl Med 2018; 16:34. [PMID: 29463285 PMCID: PMC5819708 DOI: 10.1186/s12967-018-1405-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Accepted: 02/12/2018] [Indexed: 02/08/2023] Open
Abstract
Background Chronic obstructive pulmonary disease (COPD) patients often show skeletal muscle dysfunction that has a prominent negative impact on prognosis. The study aims to further explore underlying mechanisms of skeletal muscle dysfunction as a characteristic systemic effect of COPD, potentially modifiable with preventive interventions (i.e. muscle training). The research analyzes network module associated pathways and evaluates the findings using independent measurements. Methods We characterized the transcriptionally active network modules of interacting proteins in the vastus lateralis of COPD patients (n = 15, FEV1 46 ± 12% pred, age 68 ± 7 years) and healthy sedentary controls (n = 12, age 65 ± 9 years), at rest and after an 8-week endurance training program. Network modules were functionally evaluated using experimental data derived from the same study groups. Results At baseline, we identified four COPD specific network modules indicating abnormalities in creatinine metabolism, calcium homeostasis, oxidative stress and inflammatory responses, showing statistically significant associations with exercise capacity (VO2 peak, Watts peak, BODE index and blood lactate levels) (P < 0.05 each), but not with lung function (FEV1). Training-induced network modules displayed marked differences between COPD and controls. Healthy subjects specific training adaptations were significantly associated with cell bioenergetics (P < 0.05) which, in turn, showed strong relationships with training-induced plasma metabolomic changes; whereas, effects of training in COPD were constrained to muscle remodeling. Conclusion In summary, altered muscle bioenergetics appears as the most striking finding, potentially driving other abnormal skeletal muscle responses. Trial registration The study was based on a retrospectively registered trial (May 2017), ClinicalTrials.gov identifier: NCT03169270 Electronic supplementary material The online version of this article (10.1186/s12967-018-1405-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Ákos Tényi
- Hospital Clinic de Barcelona, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Universitat de Barcelona, Barcelona, Spain. .,Center for Biomedical Network Research in Respiratory Diseases (CIBERES), Madrid, Spain.
| | - Isaac Cano
- Hospital Clinic de Barcelona, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Universitat de Barcelona, Barcelona, Spain.,Center for Biomedical Network Research in Respiratory Diseases (CIBERES), Madrid, Spain
| | - Francesco Marabita
- Unit of Computational Medicine, Department of Medicine, Karolinska Institute, 171 77, Stockholm, Sweden.,Center for Molecular Medicine, Karolinska Institutet, 171 77, Stockholm, Sweden
| | - Narsis Kiani
- Unit of Computational Medicine, Department of Medicine, Karolinska Institute, 171 77, Stockholm, Sweden.,Center for Molecular Medicine, Karolinska Institutet, 171 77, Stockholm, Sweden
| | - Susana G Kalko
- Hospital Clinic de Barcelona, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Universitat de Barcelona, Barcelona, Spain.,Center for Biomedical Network Research in Respiratory Diseases (CIBERES), Madrid, Spain.,Bioinformatics Core Facility, IDIBAPS-CEK, Hospital Clínic, University de Barcelona, Barcelona, Spain
| | - Esther Barreiro
- Center for Biomedical Network Research in Respiratory Diseases (CIBERES), Madrid, Spain.,Pulmonology Dept, Muscle and Respiratory System Research Unit, IMIM-Hospital del Mar, Universitat Pompeu Fabra, PRBB, Barcelona, Spain
| | - Pedro de Atauri
- Departament de Bioquimica i Biologia Molecular, Facultat de Biologia-IBUB, Universitat de Barcelona, 08028, Barcelona, Spain
| | - Marta Cascante
- Departament de Bioquimica i Biologia Molecular, Facultat de Biologia-IBUB, Universitat de Barcelona, 08028, Barcelona, Spain
| | - David Gomez-Cabrero
- Unit of Computational Medicine, Department of Medicine, Karolinska Institute, 171 77, Stockholm, Sweden.,Center for Molecular Medicine, Karolinska Institutet, 171 77, Stockholm, Sweden.,Mucosal and Salivary Biology Division, King's College London Dental Institute, London, SE1 9RT, UK
| | - Josep Roca
- Hospital Clinic de Barcelona, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Universitat de Barcelona, Barcelona, Spain. .,Center for Biomedical Network Research in Respiratory Diseases (CIBERES), Madrid, Spain.
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14
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Mehdipour M, Liu Y, Liu C, Kumar B, Kim D, Gathwala R, Conboy IM. Key Age-Imposed Signaling Changes That Are Responsible for the Decline of Stem Cell Function. Subcell Biochem 2018; 90:119-143. [PMID: 30779008 DOI: 10.1007/978-981-13-2835-0_5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
This chapter analyzes recent developments in the field of signal transduction of ageing with the focus on the age-imposed changes in TGF-beta/pSmad, Notch, Wnt/beta-catenin, and Jak/Stat networks. Specifically, this chapter delineates how the above-mentioned evolutionary-conserved morphogenic signaling pathways operate in young versus aged mammalian tissues, with insights into how the age-specific broad decline of stem cell function is precipitated by the deregulation of these key cell signaling networks. This chapter also provides perspectives onto the development of defined therapeutic approaches that aim to calibrate intensity of the determinant signal transduction to health-youth, thereby rejuvenating multiple tissues in older people.
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Affiliation(s)
- Melod Mehdipour
- Bioengineering, Univercity of California Berkeley, Berkeley, CA, USA
| | - Yutong Liu
- Bioengineering, Univercity of California Berkeley, Berkeley, CA, USA
| | - Chao Liu
- Bioengineering, Univercity of California Berkeley, Berkeley, CA, USA
| | - Binod Kumar
- Bioengineering, Univercity of California Berkeley, Berkeley, CA, USA
| | - Daehwan Kim
- Bioengineering, Univercity of California Berkeley, Berkeley, CA, USA
| | - Ranveer Gathwala
- Bioengineering, Univercity of California Berkeley, Berkeley, CA, USA
| | - Irina M Conboy
- Bioengineering, Univercity of California Berkeley, Berkeley, CA, USA.
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15
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Hardy D, Besnard A, Latil M, Jouvion G, Briand D, Thépenier C, Pascal Q, Guguin A, Gayraud-Morel B, Cavaillon JM, Tajbakhsh S, Rocheteau P, Chrétien F. Comparative Study of Injury Models for Studying Muscle Regeneration in Mice. PLoS One 2016; 11:e0147198. [PMID: 26807982 PMCID: PMC4726569 DOI: 10.1371/journal.pone.0147198] [Citation(s) in RCA: 308] [Impact Index Per Article: 38.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2015] [Accepted: 12/30/2015] [Indexed: 11/19/2022] Open
Abstract
Background A longstanding goal in regenerative medicine is to reconstitute functional tissus or organs after injury or disease. Attention has focused on the identification and relative contribution of tissue specific stem cells to the regeneration process. Relatively little is known about how the physiological process is regulated by other tissue constituents. Numerous injury models are used to investigate tissue regeneration, however, these models are often poorly understood. Specifically, for skeletal muscle regeneration several models are reported in the literature, yet the relative impact on muscle physiology and the distinct cells types have not been extensively characterised. Methods We have used transgenic Tg:Pax7nGFP and Flk1GFP/+ mouse models to respectively count the number of muscle stem (satellite) cells (SC) and number/shape of vessels by confocal microscopy. We performed histological and immunostainings to assess the differences in the key regeneration steps. Infiltration of immune cells, chemokines and cytokines production was assessed in vivo by Luminex®. Results We compared the 4 most commonly used injury models i.e. freeze injury (FI), barium chloride (BaCl2), notexin (NTX) and cardiotoxin (CTX). The FI was the most damaging. In this model, up to 96% of the SCs are destroyed with their surrounding environment (basal lamina and vasculature) leaving a “dead zone” devoid of viable cells. The regeneration process itself is fulfilled in all 4 models with virtually no fibrosis 28 days post-injury, except in the FI model. Inflammatory cells return to basal levels in the CTX, BaCl2 but still significantly high 1-month post-injury in the FI and NTX models. Interestingly the number of SC returned to normal only in the FI, 1-month post-injury, with SCs that are still cycling up to 3-months after the induction of the injury in the other models. Conclusions Our studies show that the nature of the injury model should be chosen carefully depending on the experimental design and desired outcome. Although in all models the muscle regenerates completely, the trajectories of the regenerative process vary considerably. Furthermore, we show that histological parameters are not wholly sufficient to declare that regeneration is complete as molecular alterations (e.g. cycling SCs, cytokines) could have a major persistent impact.
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Affiliation(s)
- David Hardy
- Institut Pasteur, Human histopathology and animal models Unit, Infection and Epidemiology Department, Paris, France
- Paris Est University, Créteil, France
| | - Aurore Besnard
- Institut Pasteur, Human histopathology and animal models Unit, Infection and Epidemiology Department, Paris, France
| | - Mathilde Latil
- Institut Pasteur, Human histopathology and animal models Unit, Infection and Epidemiology Department, Paris, France
| | - Grégory Jouvion
- Institut Pasteur, Human histopathology and animal models Unit, Infection and Epidemiology Department, Paris, France
- Paris Descartes University, Sorbonne Paris Cité, Paris France
| | - David Briand
- Institut Pasteur, Human histopathology and animal models Unit, Infection and Epidemiology Department, Paris, France
| | - Cédric Thépenier
- Institut Pasteur, Human histopathology and animal models Unit, Infection and Epidemiology Department, Paris, France
- IRBA, Unité Interactions Hôte-Agents Pathogènes, Institut de Recherche Biomédicale des Armées, Brétigny-sur-Orge, France
| | - Quentin Pascal
- Institut Pasteur, Human histopathology and animal models Unit, Infection and Epidemiology Department, Paris, France
| | - Aurélie Guguin
- Inserm, U955, Plateforme de Cytométrie en Flux, Créteil, France
| | - Barbara Gayraud-Morel
- Institut Pasteur, Stem Cells & Development Unit, Department of Developmental & Stem Cell Biology, Paris, France
| | - Jean-Marc Cavaillon
- Institut Pasteur, Cytokines and Inflammation Unit, Infection and Epidemiology Department, Paris, France
| | - Shahragim Tajbakhsh
- Institut Pasteur, Stem Cells & Development Unit, Department of Developmental & Stem Cell Biology, Paris, France
| | - Pierre Rocheteau
- Institut Pasteur, Human histopathology and animal models Unit, Infection and Epidemiology Department, Paris, France
| | - Fabrice Chrétien
- Institut Pasteur, Human histopathology and animal models Unit, Infection and Epidemiology Department, Paris, France
- Paris Descartes University, Sorbonne Paris Cité, Paris France
- Centre Hospitalier Sainte Anne, Laboratoire de Neuropathologie, Paris, France
- * E-mail:
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Yacoub M, ElGuindy A, ElGuindy A. Towards 'Eternal Youth' of cardiac and skeletal muscle. Glob Cardiol Sci Pract 2016; 2015:12. [PMID: 26779500 PMCID: PMC4448062 DOI: 10.5339/gcsp.2015.12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2015] [Accepted: 02/26/2015] [Indexed: 11/05/2022] Open
Affiliation(s)
- Magdi Yacoub
- Qatar Cardiovascular Research Center, Doha, Qatar
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FDA-approved small-molecule kinase inhibitors. Trends Pharmacol Sci 2015; 36:422-39. [PMID: 25975227 DOI: 10.1016/j.tips.2015.04.005] [Citation(s) in RCA: 707] [Impact Index Per Article: 78.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2015] [Revised: 04/02/2015] [Accepted: 04/08/2015] [Indexed: 02/07/2023]
Abstract
Kinases have emerged as one of the most intensively pursued targets in current pharmacological research, especially for cancer, due to their critical roles in cellular signaling. To date, the US FDA has approved 28 small-molecule kinase inhibitors, half of which were approved in the past 3 years. While the clinical data of these approved molecules are widely presented and structure-activity relationship (SAR) has been reported for individual molecules, an updated review that analyzes all approved molecules and summarizes current achievements and trends in the field has yet to be found. Here we present all approved small-molecule kinase inhibitors with an emphasis on binding mechanism and structural features, summarize current challenges, and discuss future directions in this field.
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