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Arias Padilla LF, Lopez JM, Shibata A, Murray JM, Hu K. The initiation and early development of apical-basal polarity in Toxoplasma gondii. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.07.14.603470. [PMID: 39071409 PMCID: PMC11275826 DOI: 10.1101/2024.07.14.603470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/30/2024]
Abstract
The human parasite Toxoplasma gondii has a distinctive body plan with a well-defined polarity. In the apical complex, the minus ends of the 22 cortical microtubules are anchored to the apical polar ring, a putative microtubule-organizing center. The basal complex caps and constricts the parasite posterior end, and is critical for cytokinesis. How this apical-basal polarity axis is initiated was unknown. Here we examined the development of the apical polar ring and the basal complex in nascent daughters using expansion microscopy. We found that different substructures in the apical polar ring have different sensitivity to stress. In addition, apical-basal differentiation is already established upon nucleation of the cortical microtubule array: arc forms of the apical polar ring and basal complex associate with opposite ends of the microtubules. As the construction of the daughter framework progresses towards the centrioles, the apical and the basal arcs co-develop in striking synchrony ahead of the microtubule array, and close into a ring-form before all the microtubules are nucleated. We also found that two apical polar ring components, APR2 and KinesinA, act synergistically. The removal of each protein individually has modest to no impact on the lytic cycle. However, the loss of both results in abnormalities in the microtubule array and highly reduced plaquing and invasion efficiency.
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Ismayilzada N, Tarar C, Dabbagh SR, Tokyay BK, Dilmani SA, Sokullu E, Abaci HE, Tasoglu S. Skin-on-a-chip technologies towards clinical translation and commercialization. Biofabrication 2024; 16:042001. [PMID: 38964314 DOI: 10.1088/1758-5090/ad5f55] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Accepted: 07/04/2024] [Indexed: 07/06/2024]
Abstract
Skin is the largest organ of the human body which plays a critical role in thermoregulation, metabolism (e.g. synthesis of vitamin D), and protection of other organs from environmental threats, such as infections, microorganisms, ultraviolet radiation, and physical damage. Even though skin diseases are considered to be less fatal, the ubiquity of skin diseases and irritation caused by them highlights the importance of skin studies. Furthermore, skin is a promising means for transdermal drug delivery, which requires a thorough understanding of human skin structure. Current animal andin vitrotwo/three-dimensional skin models provide a platform for disease studies and drug testing, whereas they face challenges in the complete recapitulation of the dynamic and complex structure of actual skin tissue. One of the most effective methods for testing pharmaceuticals and modeling skin diseases are skin-on-a-chip (SoC) platforms. SoC technologies provide a non-invasive approach for examining 3D skin layers and artificially creating disease models in order to develop diagnostic or therapeutic methods. In addition, SoC models enable dynamic perfusion of culture medium with nutrients and facilitate the continuous removal of cellular waste to further mimic thein vivocondition. Here, the article reviews the most recent advances in the design and applications of SoC platforms for disease modeling as well as the analysis of drugs and cosmetics. By examining the contributions of different patents to the physiological relevance of skin models, the review underscores the significant shift towards more ethical and efficient alternatives to animal testing. Furthermore, it explores the market dynamics ofin vitroskin models and organ-on-a-chip platforms, discussing the impact of legislative changes and market demand on the development and adoption of these advanced research tools. This article also identifies the existing obstacles that hinder the advancement of SoC platforms, proposing directions for future improvements, particularly focusing on the journey towards clinical adoption.
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Affiliation(s)
- Nilufar Ismayilzada
- Department of Mechanical Engineering, Koç University, Istanbul 34450, Turkey
| | - Ceren Tarar
- Department of Mechanical Engineering, Koç University, Istanbul 34450, Turkey
| | | | - Begüm Kübra Tokyay
- Koç University Research Center for Translational Medicine, Koç University, Istanbul 34450, Turkey
| | - Sara Asghari Dilmani
- Koç University Research Center for Translational Medicine, Koç University, Istanbul 34450, Turkey
| | - Emel Sokullu
- School of Medicine, Koç University, Istanbul 34450, Turkey
| | - Hasan Erbil Abaci
- Department of Dermatology, Columbia University, New York City, NY, United States of America
| | - Savas Tasoglu
- Department of Mechanical Engineering, Koç University, Istanbul 34450, Turkey
- Boğaziçi Institute of Biomedical Engineering, Boğaziçi University, Istanbul 34684, Turkey
- Koç University Research Center for Translational Medicine, Koç University, Istanbul 34450, Turkey
- Koç University Arçelik Research Center for Creative Industries (KUAR), Koç University, Istanbul 34450, Turkey
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153
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Wang W, Shi Z, Zhang D, Hou W, Ma H, Liu X, Zhang Y, Zhu J, Yang Z, Jia B, Xu Q, Zhang Y, Zhang M. Kinesin motor KIF16A regulates microtubule stability and actin-dependent spindle migration in mouse oocyte meiosis. FASEB J 2024; 38:e23750. [PMID: 38888878 DOI: 10.1096/fj.202400989r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2024] [Revised: 05/22/2024] [Accepted: 06/06/2024] [Indexed: 06/20/2024]
Abstract
Kif16A, a member of the kinesin-3 family of motor proteins, has been shown to play crucial roles in inducing mitotic arrest, apoptosis, and mitotic cell death. However, its roles during oocyte meiotic maturation have not been fully defined. In this study, we report that Kif16A exhibits unique accumulation on the spindle apparatus and colocalizes with microtubule fibers during mouse oocyte meiotic maturation. Targeted depletion of Kif16A using gene-targeting siRNA disrupts the progression of the meiotic cell cycle. Furthermore, Kif16A depletion leads to aberrant spindle assembly and chromosome misalignment in oocytes. Our findings also indicate that Kif16A depletion reduces tubulin acetylation levels and compromises microtubule resistance to depolymerizing drugs, suggesting its crucial role in microtubule stability maintenance. Notably, we find that the depletion of Kif16A results in a notably elevated incidence of defective kinetochore-microtubule attachments and the absence of BubR1 localization at kinetochores, suggesting a critical role for Kif16A in the activation of the spindle assembly checkpoint (SAC) activity. Additionally, we observe that Kif16A is indispensable for proper actin filament distribution, thereby impacting spindle migration. In summary, our findings demonstrate that Kif16A plays a pivotal role in regulating microtubule and actin dynamics crucial for ensuring both spindle assembly and migration during mouse oocyte meiotic maturation.
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Affiliation(s)
- Wei Wang
- College of Animal Science and Technology, Anhui Agricultural University, Key Laboratory of Local Livestock and Poultry Genetical Resource Conservation and Breeding of Anhui Province, Hefei, China
| | - Zhenhu Shi
- College of Animal Science and Technology, Anhui Agricultural University, Key Laboratory of Local Livestock and Poultry Genetical Resource Conservation and Breeding of Anhui Province, Hefei, China
| | - Dandan Zhang
- Department of Reproductive Medicine, General Hospital of Wanbei Coal Group, Key Laboratory of Reproductive Medicine and Embryo of Suzhou City, Suzhou, China
| | - Wenwen Hou
- Center of Reproductive Medicine, The First Affiliated Hospital of Wannan Medical College (Yijishan Hospital of Wannan Medical College), Wuhu, China
| | - Huijie Ma
- College of Animal Science and Technology, Anhui Agricultural University, Key Laboratory of Local Livestock and Poultry Genetical Resource Conservation and Breeding of Anhui Province, Hefei, China
| | - Xinyu Liu
- College of Animal Science and Technology, Anhui Agricultural University, Key Laboratory of Local Livestock and Poultry Genetical Resource Conservation and Breeding of Anhui Province, Hefei, China
| | - Yongteng Zhang
- College of Animal Science and Technology, Anhui Agricultural University, Key Laboratory of Local Livestock and Poultry Genetical Resource Conservation and Breeding of Anhui Province, Hefei, China
| | - Jinbao Zhu
- College of Animal Science and Technology, Anhui Agricultural University, Key Laboratory of Local Livestock and Poultry Genetical Resource Conservation and Breeding of Anhui Province, Hefei, China
| | - Zaishan Yang
- College of Animal Science and Technology, Anhui Agricultural University, Key Laboratory of Local Livestock and Poultry Genetical Resource Conservation and Breeding of Anhui Province, Hefei, China
| | - Bo Jia
- College of Animal Science and Technology, Anhui Agricultural University, Key Laboratory of Local Livestock and Poultry Genetical Resource Conservation and Breeding of Anhui Province, Hefei, China
| | - Qimei Xu
- College of Animal Science and Technology, Anhui Agricultural University, Key Laboratory of Local Livestock and Poultry Genetical Resource Conservation and Breeding of Anhui Province, Hefei, China
| | - Yunhai Zhang
- College of Animal Science and Technology, Anhui Agricultural University, Key Laboratory of Local Livestock and Poultry Genetical Resource Conservation and Breeding of Anhui Province, Hefei, China
| | - Mianqun Zhang
- College of Animal Science and Technology, Anhui Agricultural University, Key Laboratory of Local Livestock and Poultry Genetical Resource Conservation and Breeding of Anhui Province, Hefei, China
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154
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Wojnacki J, Quassollo G, Bordenave MD, Unsain N, Martínez GF, Szalai AM, Pertz O, Gundersen GG, Bartolini F, Stefani FD, Cáceres A, Bisbal M. Dual spatio-temporal regulation of axon growth and microtubule dynamics by RhoA signaling pathways. J Cell Sci 2024; 137:jcs261970. [PMID: 38910449 DOI: 10.1242/jcs.261970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Accepted: 06/17/2024] [Indexed: 06/25/2024] Open
Abstract
RhoA plays a crucial role in neuronal polarization, where its action restraining axon outgrowth has been thoroughly studied. We now report that RhoA has not only an inhibitory but also a stimulatory effect on axon development depending on when and where exerts its action and the downstream effectors involved. In cultured hippocampal neurons, FRET imaging revealed that RhoA activity selectively localized in growth cones of undifferentiated neurites, whereas in developing axons it displayed a biphasic pattern, being low in nascent axons and high in elongating ones. RhoA-Rho kinase (ROCK) signaling prevented axon initiation but had no effect on elongation, whereas formin inhibition reduced axon extension without significantly altering initial outgrowth. In addition, RhoA-mDia signaling promoted axon elongation by stimulating growth cone microtubule stability and assembly, as opposed to RhoA-ROCK signaling, which restrained growth cone microtubule assembly and protrusion.
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Affiliation(s)
- José Wojnacki
- Instituto de Investigación Médica Mercedes y Martín Ferreyra (INIMEC), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Nacional de Córdoba, Córdoba 5016, Argentina
| | - Gonzalo Quassollo
- Instituto de Investigación Médica Mercedes y Martín Ferreyra (INIMEC), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Nacional de Córdoba, Córdoba 5016, Argentina
| | - Martín D Bordenave
- Centro de Investigaciones en Bionanociencias (CIBION), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2390, Ciudad Autónoma de Buenos Aires C1425FQD, Argentina
| | - Nicolás Unsain
- Instituto de Investigación Médica Mercedes y Martín Ferreyra (INIMEC), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Nacional de Córdoba, Córdoba 5016, Argentina
- Instituto Universitario Ciencias Biomédicas de Córdoba (IUCBC), Córdoba 5016, Argentina
| | - Gaby F Martínez
- Instituto de Investigación Médica Mercedes y Martín Ferreyra (INIMEC), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Nacional de Córdoba, Córdoba 5016, Argentina
| | - Alan M Szalai
- Centro de Investigaciones en Bionanociencias (CIBION), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2390, Ciudad Autónoma de Buenos Aires C1425FQD, Argentina
| | - Olivier Pertz
- Institute of Cell Biology, University of Bern, Baltzerstrasse 4, Bern 3012, Switzerland
| | - Gregg G Gundersen
- Department of Pathology and Cell Biology, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY 10032, USA
| | - Francesca Bartolini
- Department of Pathology and Cell Biology, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY 10032, USA
| | - Fernando D Stefani
- Centro de Investigaciones en Bionanociencias (CIBION), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2390, Ciudad Autónoma de Buenos Aires C1425FQD, Argentina
- Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Güiraldes 2620, Ciudad Autónoma de Buenos Aires C1428EHA, Argentina
| | - Alfredo Cáceres
- Centro Investigación Medicina Traslacional Severo R Amuchástegui (CIMETSA), Instituto Universitario Ciencias Biomédicas Córdoba (IUCBC), Av. Naciones Unidas 440, Córdoba 5016, Argentina
| | - Mariano Bisbal
- Instituto de Investigación Médica Mercedes y Martín Ferreyra (INIMEC), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Nacional de Córdoba, Córdoba 5016, Argentina
- Instituto Universitario Ciencias Biomédicas de Córdoba (IUCBC), Córdoba 5016, Argentina
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155
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Miyata H, Shimada K, Kaneda Y, Ikawa M. Development of functional spermatozoa in mammalian spermiogenesis. Development 2024; 151:dev202838. [PMID: 39036999 DOI: 10.1242/dev.202838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/23/2024]
Abstract
Infertility is a global health problem affecting one in six couples, with 50% of cases attributed to male infertility. Spermatozoa are male gametes, specialized cells that can be divided into two parts: the head and the flagellum. The head contains a vesicle called the acrosome that undergoes exocytosis and the flagellum is a motility apparatus that propels the spermatozoa forward and can be divided into two components, axonemes and accessory structures. For spermatozoa to fertilize oocytes, the acrosome and flagellum must be formed correctly. In this Review, we describe comprehensively how functional spermatozoa develop in mammals during spermiogenesis, including the formation of acrosomes, axonemes and accessory structures by focusing on analyses of mouse models.
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Affiliation(s)
- Haruhiko Miyata
- Research Institute for Microbial Diseases, Osaka University, Suita, Osaka 565-0871, Japan
| | - Keisuke Shimada
- Research Institute for Microbial Diseases, Osaka University, Suita, Osaka 565-0871, Japan
| | - Yuki Kaneda
- Research Institute for Microbial Diseases, Osaka University, Suita, Osaka 565-0871, Japan
- Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Osaka 565-0871, Japan
| | - Masahito Ikawa
- Research Institute for Microbial Diseases, Osaka University, Suita, Osaka 565-0871, Japan
- Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Osaka 565-0871, Japan
- The Institute of Medical Science, The University of Tokyo, Minato-ku, Tokyo 108-8639, Japan
- Center for Infectious Disease Education and Research, Osaka University, Suita, Osaka 565-0871, Japan
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156
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Wang X, Qu L, Chen J, Hu K, Zhou Z, Zhang J, An Y, Zheng J. Rhoptry proteins affect the placental barrier in the context of Toxoplasma gondii infection: Signaling pathways and functions. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 280:116567. [PMID: 38850700 DOI: 10.1016/j.ecoenv.2024.116567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Revised: 05/21/2024] [Accepted: 06/05/2024] [Indexed: 06/10/2024]
Abstract
Toxoplasma gondii is an opportunistic and pathogenic obligate intracellular parasitic protozoan that is widespread worldwide and can infect most warm-blooded animals, seriously endangering human health and affecting livestock production. Toxoplasmosis caused by T. gondii infection has different clinical manifestations, which are mainly determined by the virulence of T. gondii and host differences. Among the manifestations of this condition, abortion, stillbirth, and fetal malformation can occur if a woman is infected with T. gondii in early pregnancy. Here, we discuss how the T. gondii rhoptry protein affects host pregnancy outcomes and speculate on the related signaling pathways involved. The effects of rhoptry proteins of T. gondii on the placental barrier are complex. Rhoptry proteins not only regulate interferon-regulated genes (IRGs) to ensure the survival of parasites in activated cells but also promote the spread of worms in tissues and the invasive ability of the parasites. The functions of these rhoptry proteins and the associated signaling pathways highlight relevant mechanisms by which Toxoplasma crosses the placental barrier and influences fetal development and will guide future studies to uncover the complexity of the host-pathogen interactions.
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Affiliation(s)
- Xinlei Wang
- Department of Clinical Laboratory, The Second Hospital of Jilin University, Changchun, China
| | - Lai Qu
- Department of Intensive Care Unit, First Hospital of Jilin University, Changchun, China
| | - Jie Chen
- Institute of Theoretical Chemistry, Jilin University, Changchun, China
| | - Kaisong Hu
- Department of Pathogenobiology, College of Basic Medical Sciences, Jilin University, Changchun, China
| | - Zhengjie Zhou
- Department of Pathogenobiology, College of Basic Medical Sciences, Jilin University, Changchun, China
| | - Jiaqi Zhang
- Department of Pathogenobiology, College of Basic Medical Sciences, Jilin University, Changchun, China
| | - Yiming An
- Department of Pathogenobiology, College of Basic Medical Sciences, Jilin University, Changchun, China
| | - Jingtong Zheng
- Department of Pathogenobiology, College of Basic Medical Sciences, Jilin University, Changchun, China.
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157
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Famta P, Shah S, Vambhurkar G, Pandey G, Bagasariya D, Kumar KC, Prasad SB, Shinde A, Wagh S, Srinivasarao DA, Kumar R, Khatri DK, Asthana A, Srivastava S. Amelioration of breast cancer therapies through normalization of tumor vessels and microenvironment: paradigm shift to improve drug perfusion and nanocarrier permeation. Drug Deliv Transl Res 2024:10.1007/s13346-024-01669-9. [PMID: 39009931 DOI: 10.1007/s13346-024-01669-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/04/2024] [Indexed: 07/17/2024]
Abstract
Breast cancer (BC) is the most commonly diagnosed cancer among women. Chemo-, immune- and photothermal therapies are employed to manage BC. However, the tumor microenvironment (TME) prevents free drugs and nanocarriers (NCs) from entering the tumor premises. Formulation scientists rely on enhanced permeation and retention (EPR) to extravasate NCs in the TME. However, recent research has demonstrated the inconsistent nature of EPR among different patients and tumor types. In addition, angiogenesis, high intra-tumor fluid pressure, desmoplasia, and high cell and extracellular matrix density resist the accumulation of NCs in the TME. In this review, we discuss TME normalization as an approach to improve the penetration of drugs and NCSs in the tumor premises. Strategies such as normalization of tumor vessels, reversal of hypoxia, alleviation of high intra-tumor pressure, and infiltration of lymphocytes for the reversal of therapy failure have been discussed in this manuscript. Strategies to promote the infiltration of anticancer immune cells in the TME after vascular normalization have been discussed. Studies strategizing time points to administer TME-normalizing agents are highlighted. Mechanistic pathways controlling the angiogenesis and normalization processes are discussed along with the studies. This review will provide greater tumor-targeting insights to the formulation scientists.
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Affiliation(s)
- Paras Famta
- Pharmaceutical Innovation and Translational Research Lab (PITRL), Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Balanagar, Hyderabad, 500037, Telangana, India
| | - Saurabh Shah
- Pharmaceutical Innovation and Translational Research Lab (PITRL), Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Balanagar, Hyderabad, 500037, Telangana, India
| | - Ganesh Vambhurkar
- Pharmaceutical Innovation and Translational Research Lab (PITRL), Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Balanagar, Hyderabad, 500037, Telangana, India
| | - Giriraj Pandey
- Pharmaceutical Innovation and Translational Research Lab (PITRL), Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Balanagar, Hyderabad, 500037, Telangana, India
| | - Deepkumar Bagasariya
- Pharmaceutical Innovation and Translational Research Lab (PITRL), Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Balanagar, Hyderabad, 500037, Telangana, India
| | - Kondasingh Charan Kumar
- Pharmaceutical Innovation and Translational Research Lab (PITRL), Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Balanagar, Hyderabad, 500037, Telangana, India
| | - Sajja Bhanu Prasad
- Pharmaceutical Innovation and Translational Research Lab (PITRL), Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Balanagar, Hyderabad, 500037, Telangana, India
| | - Akshay Shinde
- Pharmaceutical Innovation and Translational Research Lab (PITRL), Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Balanagar, Hyderabad, 500037, Telangana, India
| | - Suraj Wagh
- Pharmaceutical Innovation and Translational Research Lab (PITRL), Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Balanagar, Hyderabad, 500037, Telangana, India
| | - Dadi A Srinivasarao
- Pharmaceutical Innovation and Translational Research Lab (PITRL), Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Balanagar, Hyderabad, 500037, Telangana, India
| | - Rahul Kumar
- Department of Biological Sciences, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, India
| | - Dharmendra Kumar Khatri
- Department of Biological Sciences, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, India
- Molecular and Cellular Biology Laboratory, Department of Pharmacology, Nims Institute of Pharmacy, Nims University, Jaipur, Rajasthan, India
| | - Amit Asthana
- Department of Medical Devices, National Institute of Pharmaceutical Education and Research, Hyderabad, India
| | - Saurabh Srivastava
- Pharmaceutical Innovation and Translational Research Lab (PITRL), Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Balanagar, Hyderabad, 500037, Telangana, India.
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158
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Zhang Y, Meng F, Zhao T, Du J, Li N, Qiao X, Yao Y, Wu D, Peng F, Wang D, Yang S, Shi J, Liu R, Zhou W, Li L, Hao A. Melatonin improves mouse oocyte quality from 2-ethylhexyl diphenyl phosphate-induced toxicity by enhancing mitochondrial function. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 280:116559. [PMID: 38865937 DOI: 10.1016/j.ecoenv.2024.116559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 05/14/2024] [Accepted: 06/04/2024] [Indexed: 06/14/2024]
Abstract
2-Ethylhexyl diphenyl phosphate (EHDPP) is a representative organophosphorus flame retardant (OPFR) that has garnered attention due to its widespread use and potential adverse effects. EHDPP exhibits cytotoxicity, genotoxicity, developmental toxicity, and endocrine disruption. However, the toxicity of EHDPP in mammalian oocytes and the underlying mechanisms remain poorly understood. Melatonin is a natural free radical scavenger that has demonstrated cytoprotective properties. In this study, we investigated the effect of EHDPP on mouse oocytes in vitro culture system and evaluated the rescue effect of melatonin on oocytes exposed to EHDPP. Our results indicated that EHDPP disrupted oocyte maturation, resulting in the majority of oocytes arrested at the metaphase I (MI) stage, accompanied by cytoskeletal damage and elevated levels of reactive oxygen species (ROS). Nevertheless, melatonin supplementation partially rescued EHDPP-induced mouse oocyte maturation impairment. Results of single-cell RNA sequencing (scRNA-seq) analysis elucidated potential mechanisms underlying these protective effects. According to the results of scRNA-seq, we conducted further tests and found that EHDPP primarily disrupts mitochondrial distribution and function, kinetochore-microtubule (K-MT) attachment, DNA damage, apoptosis, and histone modification, which were rescued upon the supplementation of melatonin. This study reveals the mechanisms of EHDPP on female reproduction and indicates the efficacy of melatonin as a therapeutic intervention for EHDPP-induced defects in mouse oocytes.
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Affiliation(s)
- Yanan Zhang
- Key Laboratory for Experimental Teratology of Ministry of Education, Shandong Key Laboratory of Mental Disorders, Department of Anatomy and Histoembryology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Fei Meng
- Key Laboratory for Experimental Teratology of Ministry of Education, Shandong Key Laboratory of Mental Disorders, Department of Anatomy and Histoembryology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Tiantian Zhao
- Key Laboratory for Experimental Teratology of Ministry of Education, Shandong Key Laboratory of Mental Disorders, Department of Anatomy and Histoembryology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Jingyi Du
- Key Laboratory for Experimental Teratology of Ministry of Education, Shandong Key Laboratory of Mental Disorders, Department of Anatomy and Histoembryology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Naigang Li
- Key Laboratory for Experimental Teratology of Ministry of Education, Shandong Key Laboratory of Mental Disorders, Department of Anatomy and Histoembryology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Xinghui Qiao
- Key Laboratory for Experimental Teratology of Ministry of Education, Shandong Key Laboratory of Mental Disorders, Department of Anatomy and Histoembryology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Yuan Yao
- Key Laboratory for Experimental Teratology of Ministry of Education, Shandong Key Laboratory of Mental Disorders, Department of Anatomy and Histoembryology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Dong Wu
- Key Laboratory for Experimental Teratology of Ministry of Education, Shandong Key Laboratory of Mental Disorders, Department of Anatomy and Histoembryology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Fan Peng
- Key Laboratory for Experimental Teratology of Ministry of Education, Shandong Key Laboratory of Mental Disorders, Department of Anatomy and Histoembryology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Dongshuang Wang
- Key Laboratory for Experimental Teratology of Ministry of Education, Shandong Key Laboratory of Mental Disorders, Department of Anatomy and Histoembryology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Shuang Yang
- Key Laboratory for Experimental Teratology of Ministry of Education, Shandong Key Laboratory of Mental Disorders, Department of Anatomy and Histoembryology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Jiaming Shi
- Key Laboratory for Experimental Teratology of Ministry of Education, Shandong Key Laboratory of Mental Disorders, Department of Anatomy and Histoembryology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Ruoxi Liu
- Key Laboratory for Experimental Teratology of Ministry of Education, Shandong Key Laboratory of Mental Disorders, Department of Anatomy and Histoembryology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Wenjuan Zhou
- Key Laboratory for Experimental Teratology of Ministry of Education, Shandong Key Laboratory of Mental Disorders, Department of Anatomy and Histoembryology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Lei Li
- Key Laboratory for Experimental Teratology of Ministry of Education, Shandong Key Laboratory of Mental Disorders, Department of Anatomy and Histoembryology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China.
| | - Aijun Hao
- Key Laboratory for Experimental Teratology of Ministry of Education, Shandong Key Laboratory of Mental Disorders, Department of Anatomy and Histoembryology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China.
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Kunnath AN, Parker SK, Crasta DN, Kunhiraman JP, Madhvacharya VV, Kumari S, Nayak G, Vani Lakshmi R, Modi PK, Keshava Prasad TS, Kumar A, Khandelwal A, Ghani NK, Kabekkodu SP, Adiga SK, Kalthur G. Metformin augments major cytoplasmic organization except for spindle organization in oocytes cultured under hyperglycemic and hyperlipidemic conditions: An in vitro study. Toxicol Appl Pharmacol 2024; 490:117039. [PMID: 39019093 DOI: 10.1016/j.taap.2024.117039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2024] [Revised: 07/12/2024] [Accepted: 07/12/2024] [Indexed: 07/19/2024]
Abstract
The present study aimed to investigate the role of antidiabetic drug metformin on the cytoplasmic organization of oocytes. Germinal vesicle (GV) stage oocytes were collected from adult female Swiss albino mice and subjected to in vitro maturation (IVM) in various experimental groups- control, vehicle control (0.3% ethanol), metformin (50 μg/mL), high glucose and high lipid (HGHL, 10 mM glucose; 150 μM palmitic acid; 75 μM stearic acid and 200 μM oleic acid in ethanol), and HGHL supplemented with metformin. The metaphase II (MII) oocytes were analyzed for lipid accumulation, mitochondrial and endoplasmic reticulum (ER) distribution pattern, oxidative and ER stress, actin filament organization, cortical granule distribution pattern, spindle organization and chromosome alignment. An early polar body extrusion was observed in the HGHL group. However, the maturation rate at 24 h did not differ significantly among the experimental groups compared to the control. The HGHL conditions exhibited significantly higher levels of oxidative stress, ER stress, poor actin filament organization, increased lipid accumulation, altered mitochondrial distribution, spindle abnormalities, and chromosome misalignment compared to the control. Except for spindle organization, supplementation of metformin to the HGHL conditions improved all the parameters (non-significant for ER and actin distribution pattern). These results show that metformin exposure in the culture media helped to improve the hyperglycemia and hyperlipidemia-induced cytoplasmic anomalies except for spindle organization. Given the crucial role of spindle organization in proper chromosome segregation during oocyte maturation and meiotic resumption, the implications of metformin's limitations in this aspect warrant careful evaluation and further investigation.
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Affiliation(s)
- Amrutha Nedumbrakkad Kunnath
- Division of Reproductive Biology, Department of Reproductive Science, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal 576104, India
| | - Shravani Kanakadas Parker
- Center of Excellence in Clinical Embryology, Department of Reproductive Science, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal 576104, India
| | - Daphne Norma Crasta
- Division of Reproductive Biology, Department of Reproductive Science, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal 576104, India
| | - Jyolsna Ponnaratta Kunhiraman
- Division of Reproductive Biology, Department of Reproductive Science, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal 576104, India
| | - Vanishree Vasave Madhvacharya
- Division of Reproductive Biology, Department of Reproductive Science, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal 576104, India
| | - Sandhya Kumari
- Division of Reproductive Biology, Department of Reproductive Science, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal 576104, India
| | - Guruprasad Nayak
- Division of Reproductive Biology, Department of Reproductive Science, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal 576104, India
| | - R Vani Lakshmi
- Department of Data Science, Prasanna School of Public Health, Manipal Academy of Higher Education, Manipal 576104, India
| | - Prashanth Kumar Modi
- Center for Systems Biology and Molecular Medicine, Yenepoya Research Center, University Road, Mangalore 575018, India
| | | | - Anujith Kumar
- Manipal Institute of Regenerative Medicine, Manipal Academy of Higher Education, Allasandra, Yelahanka, Bangalore 560065, India
| | - Ayush Khandelwal
- Department of Cell and Molecular Biology, Manipal School of Life sciences, Manipal, Manipal Academy of Higher Education, Manipal 576104, India
| | - Nadeem Khan Ghani
- Department of Cell and Molecular Biology, Manipal School of Life sciences, Manipal, Manipal Academy of Higher Education, Manipal 576104, India
| | - Shama Prasada Kabekkodu
- Department of Cell and Molecular Biology, Manipal School of Life sciences, Manipal, Manipal Academy of Higher Education, Manipal 576104, India
| | - Satish Kumar Adiga
- Center of Excellence in Clinical Embryology, Department of Reproductive Science, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal 576104, India
| | - Guruprasad Kalthur
- Division of Reproductive Biology, Department of Reproductive Science, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal 576104, India.
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160
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Horníková M, Lanier HC, Marková S, Escalante MA, Searle JB, Kotlík P. Genetic admixture drives climate adaptation in the bank vole. Commun Biol 2024; 7:863. [PMID: 39009753 PMCID: PMC11251159 DOI: 10.1038/s42003-024-06549-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 07/03/2024] [Indexed: 07/17/2024] Open
Abstract
Genetic admixture introduces new variants at relatively high frequencies, potentially aiding rapid responses to environmental changes. Here, we evaluate its role in adaptive variation related to climatic conditions in bank voles (Clethrionomys glareolus) in Britain, using whole-genome data. Our results reveal loci showing excess ancestry from one of the two postglacial colonist populations inconsistent with overall admixture patterns. Notably, loci associated with climate adaptation exhibit disproportionate amounts of excess ancestry, highlighting the impact of admixture between colonist populations on local adaptation. The results suggest strong and localized selection on climate-adaptive loci, as indicated by steep clines and/or shifted cline centres, during population replacement. A subset, including a haemoglobin gene, is associated with oxidative stress responses, underscoring a role of oxidative stress in local adaptation. Our study highlights the important contribution of admixture during secondary contact between populations from distinct climatic refugia enriching adaptive diversity. Understanding these dynamics is crucial for predicting future adaptive capacity to anthropogenic climate change.
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Affiliation(s)
- Michaela Horníková
- Laboratory of Molecular Ecology, Institute of Animal Physiology and Genetics, Czech Academy of Sciences, Liběchov, Czech Republic
| | - Hayley C Lanier
- Department of Biology, Program in Ecology & Evolutionary Biology, University of Oklahoma, Norman, OK, USA
- Sam Noble Museum, University of Oklahoma, Norman, OK, USA
| | - Silvia Marková
- Laboratory of Molecular Ecology, Institute of Animal Physiology and Genetics, Czech Academy of Sciences, Liběchov, Czech Republic
| | - Marco A Escalante
- Laboratory of Molecular Ecology, Institute of Animal Physiology and Genetics, Czech Academy of Sciences, Liběchov, Czech Republic
| | - Jeremy B Searle
- Department of Ecology and Evolutionary Biology, Cornell University, Ithaca, NY, USA
| | - Petr Kotlík
- Laboratory of Molecular Ecology, Institute of Animal Physiology and Genetics, Czech Academy of Sciences, Liběchov, Czech Republic.
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161
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Bhattad S, Ramakrishna SH, Kumar R, Choi JM, Markle JG. Immune dysregulation due to bi-allelic mutation of the actin remodeling protein DIAPH1. Front Immunol 2024; 15:1406781. [PMID: 39076976 PMCID: PMC11284534 DOI: 10.3389/fimmu.2024.1406781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Accepted: 07/01/2024] [Indexed: 07/31/2024] Open
Abstract
Children with severe inflammatory diseases are challenging to diagnose and treat, and the etiology of disease often remains unexplained. Here we present DIAPH1 deficiency as an unexpected genetic finding in a child with fatal inflammatory bowel disease who also displayed complex neurological and developmental phenotypes. Bi-allelic mutations of DIAPH1 were first described in patients with a severe neurological phenotype including microcephaly, intellectual disability, seizures, and blindness. Recent findings have expanded the clinical phenotype of DIAPH1 deficiency to include severe susceptibility to infections, placing this monogenic disease amongst the etiologies of inborn errors of immunity. Immune phenotypes in DIAPH1 deficiency are largely driven aberrant lymphocyte activation, particularly the failure to form an effective immune synapse in T cells. We present the case of a child with a novel homozygous deletion in DIAPH1, leading to a premature truncation in the Lasso domain of the protein. Unlike other cases of DIAPH1 deficiency, this patient did not have seizures or lung infections. Her major immune-related clinical symptoms were inflammation and enteropathy, diarrhea and failure to thrive. This patient did not show T or B cell lymphopenia but did have dramatically reduced naïve CD4+ and CD8+ T cells, expanded CD4-CD8- T cells, and elevated IgE. Similar to other cases of DIAPH1 deficiency, this patient had non-hematological phenotypes including microcephaly, developmental delay, and impaired vision. This patient's symptSoms of immune dysregulation were not successfully controlled and were ultimately fatal. This case expands the clinical spectrum of DIAPH1 deficiency and reveals that autoimmune or inflammatory enteropathy may be the most prominent immunological manifestation of disease.
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Affiliation(s)
- Sagar Bhattad
- Division of Pediatric Immunology and Rheumatology, Department of Pediatrics, Aster CMI Hospital, Bengaluru, India
| | | | - Ratan Kumar
- Department of Pediatrics, Tata Main Hospital, Jamshedpur, India
| | - Joseph M. Choi
- Division of Molecular Pathogenesis, Department of Pathology Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Janet G. Markle
- Division of Molecular Pathogenesis, Department of Pathology Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, TN, United States
- Division of Genetic Medicine, Department of Medicine, Vanderbilt Genetics Institute, Vanderbilt University Medical Center, Nashville, TN, United States
- Vanderbilt Center for Immunobiology, Vanderbilt Institute for Infection, Immunology and Inflammation, Nashville, TN, United States
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162
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Wilken A, Höben IM, Wolter A, Loges NT, Olbrich H, Aprea I, Dworniczak B, Raidt J, Omran H. Primary Ciliary Dyskinesia Associated Disease-Causing Variants in CCDC39 and CCDC40 Cause Axonemal Absence of Inner Dynein Arm Heavy Chains DNAH1, DNAH6, and DNAH7. Cells 2024; 13:1200. [PMID: 39056782 PMCID: PMC11274998 DOI: 10.3390/cells13141200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 07/04/2024] [Accepted: 07/12/2024] [Indexed: 07/28/2024] Open
Abstract
Disease-causing bi-allelic DNA variants in CCDC39 and CCDC40 are frequent causes of the hereditary disorder of primary ciliary dyskinesia (PCD). The encoded proteins form a molecular ruler complex, crucial for maintaining the 96 nm repeat units along the ciliary axonemes. Defects of those proteins cause a stiff, rapid, and flickery ciliary beating pattern, recurrent respiratory infections, axonemal disorganization, and abnormal assembly of GAS8, CCDC39, and DNALI1. We performed molecular characterization of the defects in the 96 nm axonemal ruler due to disease-causing variants in CCDC39 and CCDC40 and analyzed the effect on additional axonemal components. We identified a cohort of 51 individuals with disease-causing variants in CCDC39 and CCDC40 via next-generation sequencing techniques and demonstrated that the IDA heavy chains DNAH1, DNAH6, and DNAH7 are conspicuously absent within the respiratory ciliary axonemes by immunofluorescence analyses. Hence, we show for the first time that the centrin2 (CETN2) containing IDAs are also affected. These findings underscore the crucial role of CCDC39 and CCDC40 in the assembly and function of IDAs in human respiratory cilia. Thus, our data improve the diagnostics of axonemal ruler defects by further characterizing the associated molecular IDA defects.
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Affiliation(s)
- Alina Wilken
- Department of General Pediatrics, University Hospital Muenster, 48149 Muenster, Germany
| | - Inga Marlena Höben
- Department of General Pediatrics, University Hospital Muenster, 48149 Muenster, Germany
| | - Alexander Wolter
- Department of Psychiatry, Ruhr University Bochum, LWL University Hospital, 44791 Bochum, Germany
| | - Niki Tomas Loges
- Department of General Pediatrics, University Hospital Muenster, 48149 Muenster, Germany
| | - Heike Olbrich
- Department of General Pediatrics, University Hospital Muenster, 48149 Muenster, Germany
| | - Isabella Aprea
- Department of General Pediatrics, University Hospital Muenster, 48149 Muenster, Germany
| | - Bernd Dworniczak
- Department of General Pediatrics, University Hospital Muenster, 48149 Muenster, Germany
| | - Johanna Raidt
- Department of General Pediatrics, University Hospital Muenster, 48149 Muenster, Germany
| | - Heymut Omran
- Department of General Pediatrics, University Hospital Muenster, 48149 Muenster, Germany
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163
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Zhang Z, Huang H, Chen Z, Yan M, Lu C, Xu Z, Li Z. Helicobacter pylori promotes gastric cancer through CagA-mediated mitochondrial cholesterol accumulation by targeting CYP11A1 redistribution. Int J Biol Sci 2024; 20:4007-4028. [PMID: 39113698 PMCID: PMC11302876 DOI: 10.7150/ijbs.96425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Accepted: 07/05/2024] [Indexed: 08/10/2024] Open
Abstract
Cholesterol and Helicobacter pylori (H. pylori) are both risk factors for gastric cancer (GC). However, the relationship between cholesterol and H. pylori and their function in the progression of GC are controversial. In this study, we addressed that H. pylori could induce mitochondrial cholesterol accumulation and promote GC proliferation and protect GC cells against apoptosis via cholesterol. Metabolomic and transcriptomic sequencing were used to identify CYP11A1 responsible for H. pylori-induced cholesterol accumulation. In vitro and in vivo function experiments revealed that cholesterol could promote the proliferation of GC and inhibit apoptosis. Mechanically, the interaction of Cytotoxin-associated gene A (CagA) and CYP11A1 redistributed mitochondrial CYP11A1 outside the mitochondria and subsequently caused mitochondrial cholesterol accumulation. The CYP11A1-knockdown upregulated cholesterol accumulation and reproduced the effect of cholesterol on GC in a cholesterol-dependent manner. Moreover, CYP11A1-knockdown or H. pylori infection inhibited mitophagy and maintained the mitochondria homeostasis. H. pylori could contribute to the progression of GC through the CagA/CYP11A1-mitoCHO axis. This study demonstrates that H. pylori can contribute to the progression of GC via cholesterol, and eradicating H. pylori is still prognostically beneficial to GC patients.
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Affiliation(s)
- Zhijun Zhang
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P. R. China
| | - Hongxin Huang
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P. R. China
| | - Zetian Chen
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P. R. China
| | - Mengpei Yan
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P. R. China
| | - Chen Lu
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P. R. China
| | - Zekuan Xu
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P. R. China
- Gastric Cancer Center, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P. R. China
- Institute for Gastric Cancer Research, Nanjing Medical University, Nanjing, Jiangsu 211166, P. R. China
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Personalized Cancer Medicine, Nanjing Medical University, Nanjing, Jiangsu 211166, P. R. China
| | - Zheng Li
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P. R. China
- Gastric Cancer Center, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P. R. China
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164
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Hasan G. Septin regulation of Orai-mediated Ca 2+ entry - a novel target for neurodegeneration. Cell Calcium 2024; 123:102929. [PMID: 39018956 DOI: 10.1016/j.ceca.2024.102929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2024] [Accepted: 07/09/2024] [Indexed: 07/19/2024]
Abstract
Aberrant Ca2+ signaling is an early hallmark of multiple neurodegenerative syndromes including Alzheimer's and Parkinson's disease (AD and PD) as well as classes of rare genetic disorders such as Spinocebellar Ataxias. Therapeutic strategies that target aberrant Ca2+ signals whilst allowing normal neuronal Ca2+ signals have been a challenge. In a recent study Princen et al., performed a screen in the tauP301L cell model of AD for drugs that could specifically ameliorate the excess Ca2+ entry observed. They identified a class of compounds referred to as ReS19-T that interact with Septins, previously identified as regulators of the Store-operated Ca2+ entry channel Orai. Drug treatment of the cellular model, a mouse model and human iPSC derived neurons alleviate cellular and systemic deficits associated with tauP301L. Comparison of Septin filament architecture in disease conditions with and without the drug treatment indicate that excess Ca2+ entry is a consequence of abnormal Septin filament architecture resulting in aberrant ER-PM contacts. The importance of membrane contacts for maintaining precise cellular signaling has been recognized previously. However, the molecular mechanism by which Septin filaments organize the ER-PM junctions to regulate Ca2+ entry through Orai remains to be fully understood.
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Affiliation(s)
- Gaiti Hasan
- CHINTA, TCG-Crest, Kolkata, India; NCBS-TIFR, Bengaluru, India.
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165
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Alalawy AI. Key genes and molecular mechanisms related to Paclitaxel Resistance. Cancer Cell Int 2024; 24:244. [PMID: 39003454 PMCID: PMC11245874 DOI: 10.1186/s12935-024-03415-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Accepted: 06/22/2024] [Indexed: 07/15/2024] Open
Abstract
Paclitaxel is commonly used to treat breast, ovarian, lung, esophageal, gastric, pancreatic cancer, and neck cancer cells. Cancer recurrence is observed in patients treated with paclitaxel due to paclitaxel resistance emergence. Resistant mechanisms are observed in cancer cells treated with paclitaxel, docetaxel, and cabazitaxel including changes in the target molecule β-tubulin of mitosis, molecular mechanisms that activate efflux drug out of the cells, and alterations in regulatory proteins of apoptosis. This review discusses new molecular mechanisms of taxane resistance, such as overexpression of genes like the multidrug resistance genes and EDIL3, ABCB1, MRP1, and TRAG-3/CSAG2 genes. Moreover, significant lncRNAs are detected in paclitaxel resistance, such as lncRNA H19 and cross-resistance between taxanes. This review contributed to discovering new treatment strategies for taxane resistance and increasing the responsiveness of cancer cells toward chemotherapeutic drugs.
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Affiliation(s)
- Adel I Alalawy
- Department of Biochemistry, Faculty of Science, University of Tabuk, Tabuk, 71491, Saudi Arabia.
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166
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Ewerling A, May-Simera HL. Evolutionary trajectory for nuclear functions of ciliary transport complex proteins. Microbiol Mol Biol Rev 2024:e0000624. [PMID: 38995044 DOI: 10.1128/mmbr.00006-24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/13/2024] Open
Abstract
SUMMARYCilia and the nucleus were two defining features of the last eukaryotic common ancestor. In early eukaryotic evolution, these structures evolved through the diversification of a common membrane-coating ancestor, the protocoatomer. While in cilia, the descendants of this protein complex evolved into parts of the intraflagellar transport complexes and BBSome, the nucleus gained its selectivity by recruiting protocoatomer-like proteins to the nuclear envelope to form the selective nuclear pore complexes. Recent studies show a growing number of proteins shared between the proteomes of the respective organelles, and it is currently unknown how ciliary transport proteins could acquire nuclear functions and vice versa. The nuclear functions of ciliary proteins are still observable today and remain relevant for the understanding of the disease mechanisms behind ciliopathies. In this work, we review the evolutionary history of cilia and nucleus and their respective defining proteins and integrate current knowledge into theories for early eukaryotic evolution. We postulate a scenario where both compartments co-evolved and that fits current models of eukaryotic evolution, explaining how ciliary proteins and nucleoporins acquired their dual functions.
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Affiliation(s)
- Alexander Ewerling
- Faculty of Biology, Institute of Molecular Physiology, Johannes Gutenberg-University, Mainz, Germany
| | - Helen Louise May-Simera
- Faculty of Biology, Institute of Molecular Physiology, Johannes Gutenberg-University, Mainz, Germany
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167
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Guseva EA, Buev VS, Mirzaeva SE, Pletnev PI, Dontsova OA, Sergiev PV. Structure and Composition of Spermatozoa Fibrous Sheath in Diverse Groups of Metazoa. Int J Mol Sci 2024; 25:7663. [PMID: 39062905 PMCID: PMC11276731 DOI: 10.3390/ijms25147663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2024] [Revised: 07/01/2024] [Accepted: 07/08/2024] [Indexed: 07/28/2024] Open
Abstract
The proper functioning and assembly of the sperm flagella structures contribute significantly to spermatozoa motility and overall male fertility. However, the fine mechanisms of assembly steps are poorly studied due to the high diversity of cell types, low solubility of the corresponding protein structures, and high tissue and cell specificity. One of the open questions for investigation is the attachment of longitudinal columns to the doublets 3 and 8 of axonemal microtubules through the outer dense fibers. A number of mutations affecting the assembly of flagella in model organisms are known. Additionally, evolutionary genomics data and comparative analysis of flagella morphology are available for a set of non-model species. This review is devoted to the analysis of diverse ultrastructures of sperm flagellum of Metazoa combined with an overview of the evolutionary distribution and function of the mammalian fibrous sheath proteins.
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Affiliation(s)
- Ekaterina A. Guseva
- Center of Life Sciences, Skolkovo Institute of Science and Technology, 143025 Skolkovo, Russia; (E.A.G.); (O.A.D.)
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119991 Moscow, Russia
- Faculty of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia; (V.S.B.); (S.E.M.); (P.I.P.)
| | - Vitaly S. Buev
- Faculty of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia; (V.S.B.); (S.E.M.); (P.I.P.)
- Faculty of Bioengeneering and Bioinformatics, Lomonosov Moscow State University, 119991 Moscow, Russia
| | - Sabina E. Mirzaeva
- Faculty of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia; (V.S.B.); (S.E.M.); (P.I.P.)
| | - Philipp I. Pletnev
- Faculty of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia; (V.S.B.); (S.E.M.); (P.I.P.)
| | - Olga A. Dontsova
- Center of Life Sciences, Skolkovo Institute of Science and Technology, 143025 Skolkovo, Russia; (E.A.G.); (O.A.D.)
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119991 Moscow, Russia
- Faculty of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia; (V.S.B.); (S.E.M.); (P.I.P.)
- Shemyakin–Ovchinnikov Institute of Bioorganic Chemistry, 117997 Moscow, Russia
| | - Petr V. Sergiev
- Center of Life Sciences, Skolkovo Institute of Science and Technology, 143025 Skolkovo, Russia; (E.A.G.); (O.A.D.)
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119991 Moscow, Russia
- Faculty of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia; (V.S.B.); (S.E.M.); (P.I.P.)
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168
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Singh D, Liu Y, Zhu YH, Zhang S, Naegele S, Wu JQ. Septins function in exocytosis via physical interactions with the exocyst complex in fission yeast cytokinesis. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.07.09.602728. [PMID: 39026698 PMCID: PMC11257574 DOI: 10.1101/2024.07.09.602728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/20/2024]
Abstract
Septins can function as scaffolds for protein recruitment, membrane-bound diffusion barriers, or membrane curvature sensors. Septins are important for cytokinesis, but their exact roles are still obscure. In fission yeast, four septins (Spn1 to Spn4) accumulate at the rim of the division plane as rings. The octameric exocyst complex, which tethers exocytic vesicles to the plasma membrane, exhibits a similar localization and is essential for plasma membrane deposition during cytokinesis. Without septins, the exocyst spreads across the division plane but absent from the rim during septum formation. These results suggest that septins and the exocyst physically interact for proper localization. Indeed, we predicted six pairs of direct interactions between septin and exocyst subunits by AlphaFold2 ColabFold, most of them are confirmed by co-immunoprecipitation and yeast two-hybrid assays. Exocyst mislocalization results in mistargeting of secretory vesicles and their cargos, which leads to cell-separation delay in septin mutants. Our results indicate that septins guide the targeting of exocyst complex on the plasma membrane for vesicle tethering during cytokinesis through direct physical interactions.
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Affiliation(s)
- Davinder Singh
- Department of Molecular Genetics, The Ohio State University, Columbus, Ohio, United States
| | - Yajun Liu
- Department of Molecular Genetics, The Ohio State University, Columbus, Ohio, United States
| | - Yi-Hua Zhu
- Department of Molecular Genetics, The Ohio State University, Columbus, Ohio, United States
| | - Sha Zhang
- Department of Molecular Genetics, The Ohio State University, Columbus, Ohio, United States
| | - Shelby Naegele
- Department of Molecular Genetics, The Ohio State University, Columbus, Ohio, United States
| | - Jian-Qiu Wu
- Department of Molecular Genetics, The Ohio State University, Columbus, Ohio, United States
- Department of Biological Chemistry and Pharmacology, The Ohio State University, Columbus, Ohio, United States
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169
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Effiong UM, Khairandish H, Ramirez-Velez I, Wang Y, Belardi B. Turn-on protein switches for controlling actin binding in cells. Nat Commun 2024; 15:5840. [PMID: 38992021 PMCID: PMC11239668 DOI: 10.1038/s41467-024-49934-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Accepted: 06/26/2024] [Indexed: 07/13/2024] Open
Abstract
Within a shared cytoplasm, filamentous actin (F-actin) plays numerous and critical roles across the cell body. Cells rely on actin-binding proteins (ABPs) to organize F-actin and to integrate its polymeric characteristics into diverse cellular processes. Yet, the multitude of ABPs that engage with and shape F-actin make studying a single ABP's influence on cellular activities a significant challenge. Moreover, without a means of manipulating actin-binding subcellularly, harnessing the F-actin cytoskeleton for synthetic biology purposes remains elusive. Here, we describe a suite of designed proteins, Controllable Actin-binding Switch Tools (CASTs), whose actin-binding behavior can be controlled with external stimuli. CASTs were developed that respond to different external inputs, providing options for turn-on kinetics and enabling orthogonality and multiplexing. Being genetically encoded, we show that CASTs can be inserted into native protein sequences to control F-actin association locally and engineered into structures to control cell and tissue shape and behavior.
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Affiliation(s)
- Unyime M Effiong
- McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, TX, 78712, USA
| | - Hannah Khairandish
- McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, TX, 78712, USA
| | - Isabela Ramirez-Velez
- McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, TX, 78712, USA
| | - Yanran Wang
- McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, TX, 78712, USA
| | - Brian Belardi
- McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, TX, 78712, USA.
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170
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Sakamoto R, Murrell MP. Composite branched and linear F-actin maximize myosin-induced membrane shape changes in a biomimetic cell model. Commun Biol 2024; 7:840. [PMID: 38987288 PMCID: PMC11236970 DOI: 10.1038/s42003-024-06528-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Accepted: 07/01/2024] [Indexed: 07/12/2024] Open
Abstract
The architecture of the actin cortex determines the generation and transmission of stresses, during key events from cell division to migration. However, its impact on myosin-induced cell shape changes remains unclear. Here, we reconstitute a minimal model of the actomyosin cortex with branched or linear F-actin architecture within giant unilamellar vesicles (GUVs, liposomes). Upon light activation of myosin, neither the branched nor linear F-actin architecture alone induces significant liposome shape changes. The branched F-actin network forms an integrated, membrane-bound "no-slip boundary" -like cortex that attenuates actomyosin contractility. By contrast, the linear F-actin network forms an unintegrated "slip boundary" -like cortex, where actin asters form without inducing membrane deformations. Notably, liposomes undergo significant deformations at an optimized balance of branched and linear F-actin networks. Our findings highlight the pivotal roles of branched F-actin in force transmission and linear F-actin in force generation to yield membrane shape changes.
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Affiliation(s)
- Ryota Sakamoto
- Department of Biomedical Engineering, Yale University, 10 Hillhouse Avenue, New Haven, CT, USA
- Systems Biology Institute, 850 West Campus Drive, West Haven, CT, USA
| | - Michael P Murrell
- Department of Biomedical Engineering, Yale University, 10 Hillhouse Avenue, New Haven, CT, USA.
- Systems Biology Institute, 850 West Campus Drive, West Haven, CT, USA.
- Department of Physics, Yale University, 217 Prospect Street, New Haven, CT, USA.
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171
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Nazari H, Cho AN, Goss D, Thiery JP, Ebrahimi Warkiani M. Impact of brain organoid-derived sEVs on metastatic adaptation and invasion of breast carcinoma cells through a microphysiological system. LAB ON A CHIP 2024; 24:3434-3455. [PMID: 38888211 DOI: 10.1039/d4lc00296b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/20/2024]
Abstract
Brain metastases are common in triple-negative breast cancer (TNBC), suggesting a complex process of cancer spread. The mechanisms enabling TNBC cell adaptation and proliferation in the brain remain unclear. Small extracellular vesicles (sEVs) play a crucial role in communication between breast carcinoma cells and the brain. However, the lack of relevant models hinders understanding of sEV-mediated communication. The present study assesses the impact of brain organoid-derived sEVs (BO-sEVs) on various behaviours of the MDA-MB-231 cell line, chosen as a representative of TNBC in a 3D microfluidic model. Our results demonstrate that 150-200 nm sEVs expressing CD63, CD9, and CD81 from brain organoid media decrease MDA-MB-231 cell proliferation, enhance their wound-healing capacity, alter their morphology into more mesenchymal mode, and increase their stemness. BO-sEVs led to heightened PD-L1, CD49f, and vimentin levels of expression in MDA-MB-231 cells, suggesting an amplified immunosuppressive, stem-like, and mesenchymal phenotype. Furthermore, these sEVs also induced the expression of neural markers such as GFAP in carcinoma cells. The cytokine antibody profiling array also showed that BO-sEVs enhanced the secretion of MCP-1, IL-6, and IL-8 by MDA-MB-231 cells. Moreover, sEVs significantly enhance the migration and invasion of carcinoma cells toward brain organoids in a 3D organoid-on-a-chip system. Our findings emphasize the potential significance of metastatic site-derived sEVs as pivotal mediators in carcinoma progression and adaptation to the brain microenvironment, thereby unveiling novel therapeutic avenues.
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Affiliation(s)
- Hojjatollah Nazari
- School of Biomedical Engineering, Faculty of Engineering and IT, University of Technology Sydney, Sydney, NSW, Australia.
| | - Ann-Na Cho
- School of Biomedical Engineering, Faculty of Engineering, The University of Sydney, Sydney, NSW, Australia
| | - Dale Goss
- School of Biomedical Engineering, Faculty of Engineering and IT, University of Technology Sydney, Sydney, NSW, Australia.
| | - Jean Paul Thiery
- UMR 7057 CNRS Matter and Complex Systems, Université Paris Cité, Paris, France
| | - Majid Ebrahimi Warkiani
- School of Biomedical Engineering, Faculty of Engineering and IT, University of Technology Sydney, Sydney, NSW, Australia.
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172
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Qiu Y, Gao T, Smith BR. Mechanical deformation and death of circulating tumor cells in the bloodstream. Cancer Metastasis Rev 2024:10.1007/s10555-024-10198-3. [PMID: 38980581 DOI: 10.1007/s10555-024-10198-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Accepted: 06/28/2024] [Indexed: 07/10/2024]
Abstract
The circulation of tumor cells through the bloodstream is a significant step in tumor metastasis. To better understand the metastatic process, circulating tumor cell (CTC) survival in the circulation must be explored. While immune interactions with CTCs in recent decades have been examined, research has yet to sufficiently explain some CTC behaviors in blood flow. Studies related to CTC mechanical responses in the bloodstream have recently been conducted to further study conditions under which CTCs might die. While experimental methods can assess the mechanical properties and death of CTCs, increasingly sophisticated computational models are being built to simulate the blood flow and CTC mechanical deformation under fluid shear stresses (FSS) in the bloodstream.Several factors contribute to the mechanical deformation and death of CTCs as they circulate. While FSS can damage CTC structure, diverse interactions between CTCs and blood components may either promote or hinder the next metastatic step-extravasation at a remote site. Overall understanding of how these factors influence the deformation and death of CTCs could serve as a basis for future experiments and simulations, enabling researchers to predict CTC death more accurately. Ultimately, these efforts can lead to improved metastasis-specific therapeutics and diagnostics specific in the future.
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Affiliation(s)
- Yunxiu Qiu
- Department of Chemical Engineering and Materials Science, Michigan State University, East Lansing, MI, 48824, USA
- The Institute for Quantitative Health Science & Engineering, Michigan State University, East Lansing, MI, 48824, USA
| | - Tong Gao
- Department of Mechanical Engineering, Michigan State University, East Lansing, MI, 48824, USA
- Department of Computational Mathematics, Science, and Engineering, East Lansing, MI, 48824, USA
| | - Bryan Ronain Smith
- Department of Chemical Engineering and Materials Science, Michigan State University, East Lansing, MI, 48824, USA.
- The Institute for Quantitative Health Science & Engineering, Michigan State University, East Lansing, MI, 48824, USA.
- Department of Mechanical Engineering, Michigan State University, East Lansing, MI, 48824, USA.
- Department of Biomedical Engineering, Michigan State University, East Lansing, MI, 48824, USA.
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173
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Pittar A, Buckley EJ, Boyle ST, Ibbetson SJ, Samuel MS. Enhanced RHO-ROCK signaling is associated with CRELD2 production and fibroblast recruitment in cutaneous squamous cell carcinoma. Cytoskeleton (Hoboken) 2024. [PMID: 38979935 DOI: 10.1002/cm.21894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 06/05/2024] [Accepted: 06/28/2024] [Indexed: 07/10/2024]
Abstract
A key characteristic of cancer cells is their ability to induce changes in their microenvironment that render it permissive to tumor growth, invasion and metastasis. Indeed, these changes are required for tumor progression. Consequently, the tumor microenvironment is emerging as a key source of new targets against cancer, with novel therapies aimed at reversing tumor-promoting changes, reinstating a tumor-hostile microenvironment and suppressing disease progression. RHO-ROCK signaling, and consequent tension within the cellular actomyosin cytoskeleton, regulates a paracrine signaling cascade that establishes a tumor-promoting microenvironment. Here, we show that consistent with our observations in breast cancer, enhanced ROCK activity and consequent production of CRELD2 is associated with the recruitment and tumor-promoting polarization of cancer-associated fibroblasts in cutaneous squamous cell carcinoma. Our observations provide support for the notion that the role of RHO-ROCK signaling in establishing a tumor-promoting microenvironment may be conserved across patients and potentially also different cancer types.
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Affiliation(s)
- Alexandra Pittar
- Centre for Cancer Biology, an Alliance between SA Pathology and the University of South Australia, Adelaide, Australia
| | - Edward J Buckley
- Centre for Cancer Biology, an Alliance between SA Pathology and the University of South Australia, Adelaide, Australia
| | - Sarah T Boyle
- Centre for Cancer Biology, an Alliance between SA Pathology and the University of South Australia, Adelaide, Australia
| | - S Jan Ibbetson
- Division of Surgical Pathology, SA Pathology, Adelaide, Australia
| | - Michael S Samuel
- Centre for Cancer Biology, an Alliance between SA Pathology and the University of South Australia, Adelaide, Australia
- Adelaide Medical School, Faculty of Health and Medical Sciences, University of Adelaide, Adelaide, Australia
- Basil Hetzel Institute for Translational Health Research, Woodville South, Adelaide, Australia
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174
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Shi G, Chang Z, Zhang P, Zou X, Zheng X, Liu X, Yan J, Xu H, Tian Z, Zhang N, Cui N, Sun L, Xu G, Yang H. Heterogeneous stiffness of the bone marrow microenvironment regulates the fate decision of haematopoietic stem and progenitor cells. Cell Prolif 2024:e13715. [PMID: 38982593 DOI: 10.1111/cpr.13715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Revised: 06/04/2024] [Accepted: 06/27/2024] [Indexed: 07/11/2024] Open
Abstract
The bone marrow (BM) niches are the complex microenvironments that surround cells, providing various external stimuli to regulate a range of haematopoietic stem cell (HSC) behaviours. Recently, it has been proposed that the fate decision of HSCs is often correlated with significantly altered biophysical signals of BM niches. To thoroughly elucidate the effect of mechanical microenvironments on cell fates, we constructed 2D and 3D cell culture hydrogels using polyacrylamide to replicate the mechanical properties of heterogeneous sub-niches, including the inherent rigidity of marrow adipose tissue (2 kPa), perivascular tissue (8 kPa) and endosteum region (35 kPa) in BM. Our observations suggest that HSCs can respond to the mechanical heterogeneity of the BM microenvironment, exhibiting diversity in cell mechanics, haematopoietic pool maintenance and differentiated lineages. Hydrogels with higher stiffness promote the preservation of long-term repopulating HSCs (LT-HSCs), while those with lower stiffness support multi-potent progenitors (MPPs) viability in vitro. Furthermore, we established a comprehensive transcriptional profile of haematopoietic subpopulations to reflect the multipotency of haematopoietic stem and progenitor cells (HSPCs) that are modulated by niche-like stiffness. Our findings demonstrate that HSPCs exhibit completely distinct downstream differentiated preferences within hydrogel systems of varying stiffness. This highlights the crucial role of tissue-specific mechanical properties in HSC lineage decisions, which may provide innovative solutions to clinical challenges.
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Affiliation(s)
- Guolin Shi
- School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
- Engineering Research Center of Chinese Ministry of Education for Biological Diagnosis, Treatment and Protection Technology and Equipment, Xi'an, China
- Center of Special Environmental Biomechanics & Biomedical Engineering, Northwestern Polytechnical University, Xi'an, China
| | - Zhuo Chang
- Laboratory for Multiscale Mechanics and Medical Science, Department of Engineering Mechanics, State Key Laboratory for Strength and Vibration of Mechanical Structures, School of Aerospace Engineering, Xi'an Jiaotong University, Xi'an, China
| | - Pan Zhang
- School College of Food Science and Engineering, Shaanxi University of Science and Technology, Xi'an, China
| | - Xiaohang Zou
- School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
- Engineering Research Center of Chinese Ministry of Education for Biological Diagnosis, Treatment and Protection Technology and Equipment, Xi'an, China
- Center of Special Environmental Biomechanics & Biomedical Engineering, Northwestern Polytechnical University, Xi'an, China
| | - Xinmin Zheng
- School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
- Engineering Research Center of Chinese Ministry of Education for Biological Diagnosis, Treatment and Protection Technology and Equipment, Xi'an, China
- Center of Special Environmental Biomechanics & Biomedical Engineering, Northwestern Polytechnical University, Xi'an, China
| | - Xiru Liu
- School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
- Engineering Research Center of Chinese Ministry of Education for Biological Diagnosis, Treatment and Protection Technology and Equipment, Xi'an, China
- Center of Special Environmental Biomechanics & Biomedical Engineering, Northwestern Polytechnical University, Xi'an, China
| | - Jinxiao Yan
- School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
- Engineering Research Center of Chinese Ministry of Education for Biological Diagnosis, Treatment and Protection Technology and Equipment, Xi'an, China
- Center of Special Environmental Biomechanics & Biomedical Engineering, Northwestern Polytechnical University, Xi'an, China
| | - Huiyun Xu
- School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
- Engineering Research Center of Chinese Ministry of Education for Biological Diagnosis, Treatment and Protection Technology and Equipment, Xi'an, China
- Center of Special Environmental Biomechanics & Biomedical Engineering, Northwestern Polytechnical University, Xi'an, China
| | - Zhenhao Tian
- School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
- Engineering Research Center of Chinese Ministry of Education for Biological Diagnosis, Treatment and Protection Technology and Equipment, Xi'an, China
- Center of Special Environmental Biomechanics & Biomedical Engineering, Northwestern Polytechnical University, Xi'an, China
| | - Nu Zhang
- School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
- Engineering Research Center of Chinese Ministry of Education for Biological Diagnosis, Treatment and Protection Technology and Equipment, Xi'an, China
- Center of Special Environmental Biomechanics & Biomedical Engineering, Northwestern Polytechnical University, Xi'an, China
| | - Ning Cui
- School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
- Engineering Research Center of Chinese Ministry of Education for Biological Diagnosis, Treatment and Protection Technology and Equipment, Xi'an, China
- Center of Special Environmental Biomechanics & Biomedical Engineering, Northwestern Polytechnical University, Xi'an, China
| | - Leming Sun
- School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
- Engineering Research Center of Chinese Ministry of Education for Biological Diagnosis, Treatment and Protection Technology and Equipment, Xi'an, China
- Center of Special Environmental Biomechanics & Biomedical Engineering, Northwestern Polytechnical University, Xi'an, China
| | - Guangkui Xu
- Laboratory for Multiscale Mechanics and Medical Science, Department of Engineering Mechanics, State Key Laboratory for Strength and Vibration of Mechanical Structures, School of Aerospace Engineering, Xi'an Jiaotong University, Xi'an, China
| | - Hui Yang
- School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
- Engineering Research Center of Chinese Ministry of Education for Biological Diagnosis, Treatment and Protection Technology and Equipment, Xi'an, China
- Center of Special Environmental Biomechanics & Biomedical Engineering, Northwestern Polytechnical University, Xi'an, China
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175
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Blázquez-Carmona P, Ruiz-Mateos R, Barrasa-Fano J, Shapeti A, Martín-Alfonso JE, Domínguez J, Van Oosterwyck H, Reina-Romo E, Sanz-Herrera JA. Quantitative atlas of collagen hydrogels reveals mesenchymal cancer cell traction adaptation to the matrix nanoarchitecture. Acta Biomater 2024:S1742-7061(24)00364-7. [PMID: 38992411 DOI: 10.1016/j.actbio.2024.07.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Revised: 07/01/2024] [Accepted: 07/02/2024] [Indexed: 07/13/2024]
Abstract
Collagen-based hydrogels are commonly used in mechanobiology to mimic the extracellular matrix. A quantitative analysis of the influence of collagen concentration and properties on the structure and mechanics of the hydrogels is essential for tailored design adjustments for specific in vitro conditions. We combined focused ion beam scanning electron microscopy and rheology to provide a detailed quantitative atlas of the mechanical and nanoscale three-dimensional structural alterations that occur when manipulating different hydrogel's physicochemistry. Moreover, we study the effects of such alterations on the phenotype of breast cancer cells and their mechanical interactions with the extracellular matrix. Regardless of the microenvironment's pore size, porosity or mechanical properties, cancer cells are able to reach a stable mesenchymal-like morphology. Additionally, employing 3D traction force microscopy, a positive correlation between cellular tractions and ECM mechanics is observed up to a critical threshold, beyond which tractions plateau. This suggests that cancer cells in a stable mesenchymal state calibrate their mechanical interactions with the ECM to keep their migration and invasiveness capacities unaltered. STATEMENT OF SIGNIFICANCE: The paper presents a thorough study on the mechanical microenvironment in breast cancer cells during their interaction with collagen based hydrogels of different compositions. The hydrogels' microstructure were obtained using state-of-the-art 3D microscopy, namely focused ion beam-scanning electron microscope (FIB-SEM). FIB-SEM was originally applied in this work to reconstruct complex fibered collagen microstructures within the nanometer range, to obtain key microarchitectural parameters. The mechanical microenvironment of cells was recovered using Traction Force Microscopy (TFM). The obtained results suggest that cells calibrate tractions such that they depend on mechanical, microstructural and physicochemical characteristics of the hydrogels, hence revealing a steric hindrance. We hypothesize that cancer cells studied in this paper tune their mechanical state to keep their migration and invasiveness capacities unaltered.
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Affiliation(s)
- Pablo Blázquez-Carmona
- Escuela Técnica Superior de Ingeniería, Universidad de Sevilla. Avenida Camino de los Descubrimientos s/n, 41092 Sevilla, Spain; Instituto de Biomedicina de Sevilla (IBIS). C. Antonio Maura Montaner, 41013 Sevilla, Spain
| | - Raquel Ruiz-Mateos
- Escuela Técnica Superior de Ingeniería, Universidad de Sevilla. Avenida Camino de los Descubrimientos s/n, 41092 Sevilla, Spain; Instituto de Biomedicina de Sevilla (IBIS). C. Antonio Maura Montaner, 41013 Sevilla, Spain
| | - Jorge Barrasa-Fano
- Department of Mechanical Engineering, Biomechanics Section, KU Leuven, Celestijnenlaan 300. B-3001 Heverlee, Belgium
| | - Apeksha Shapeti
- Department of Mechanical Engineering, Biomechanics Section, KU Leuven, Celestijnenlaan 300. B-3001 Heverlee, Belgium
| | - José Enrique Martín-Alfonso
- Escuela Técnica Superior de Ingeniería, Universidad de Huelva. Avda. de las Fuerzas Armadas s/n, 21007 Huelva, Spain
| | - Jaime Domínguez
- Escuela Técnica Superior de Ingeniería, Universidad de Sevilla. Avenida Camino de los Descubrimientos s/n, 41092 Sevilla, Spain; Instituto de Biomedicina de Sevilla (IBIS). C. Antonio Maura Montaner, 41013 Sevilla, Spain
| | - Hans Van Oosterwyck
- Department of Mechanical Engineering, Biomechanics Section, KU Leuven, Celestijnenlaan 300. B-3001 Heverlee, Belgium
| | - Esther Reina-Romo
- Escuela Técnica Superior de Ingeniería, Universidad de Sevilla. Avenida Camino de los Descubrimientos s/n, 41092 Sevilla, Spain; Instituto de Biomedicina de Sevilla (IBIS). C. Antonio Maura Montaner, 41013 Sevilla, Spain
| | - José Antonio Sanz-Herrera
- Escuela Técnica Superior de Ingeniería, Universidad de Sevilla. Avenida Camino de los Descubrimientos s/n, 41092 Sevilla, Spain; Instituto de Biomedicina de Sevilla (IBIS). C. Antonio Maura Montaner, 41013 Sevilla, Spain.
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176
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Mousele C, Holden D, Gnanapavan S. Neurofilaments in neurologic disease. Adv Clin Chem 2024; 123:65-128. [PMID: 39181624 DOI: 10.1016/bs.acc.2024.06.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/27/2024]
Abstract
Neurofilaments (NFs), major cytoskeletal constituents of neurons, have emerged as universal biomarkers of neuronal injury. Neuroaxonal damage underlies permanent disability in various neurological conditions. It is crucial to accurately quantify and longitudinally monitor this damage to evaluate disease progression, evaluate treatment effectiveness, contribute to novel treatment development, and offer prognostic insights. Neurofilaments show promise for this purpose, as their levels increase with neuroaxonal damage in both cerebrospinal fluid and blood, independent of specific causal pathways. New assays with high sensitivity allow reliable measurement of neurofilaments in body fluids and open avenues to investigate their role in neurological disorders. This book chapter will delve into the evolving landscape of neurofilaments, starting with their structure and cellular functions within neurons. It will then provide a comprehensive overview of their broad clinical value as biomarkers in diseases affecting the central or peripheral nervous system.
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177
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Lechuga S, Marino-Melendez A, Davis A, Zalavadia A, Khan A, Longworth MS, Ivanov AI. Coactosin-like protein 1 regulates integrity and repair of model intestinal epithelial barriers via actin binding dependent and independent mechanisms. Front Cell Dev Biol 2024; 12:1405454. [PMID: 39040043 PMCID: PMC11260685 DOI: 10.3389/fcell.2024.1405454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Accepted: 06/24/2024] [Indexed: 07/24/2024] Open
Abstract
The actin cytoskeleton regulates the integrity and repair of epithelial barriers by mediating the assembly of tight junctions (TJs), and adherens junctions (AJs), and driving epithelial wound healing. Actin filaments undergo a constant turnover guided by numerous actin-binding proteins, however, the roles of actin filament dynamics in regulating intestinal epithelial barrier integrity and repair remain poorly understood. Coactosin-like protein 1 (COTL1) is a member of the ADF/cofilin homology domain protein superfamily that binds and stabilizes actin filaments. COTL1 is essential for neuronal and cancer cell migration, however, its functions in epithelia remain unknown. The goal of this study is to investigate the roles of COTL1 in regulating the structure, permeability, and repair of the epithelial barrier in human intestinal epithelial cells (IEC). COTL1 was found to be enriched at apical junctions in polarized IEC monolayers in vitro. The knockdown of COTL1 in IEC significantly increased paracellular permeability, impaired the steady state TJ and AJ integrity, and attenuated junctional reassembly in a calcium-switch model. Consistently, downregulation of COTL1 expression in Drosophila melanogaster increased gut permeability. Loss of COTL1 attenuated collective IEC migration and decreased cell-matrix attachment. The observed junctional abnormalities in COTL1-depleted IEC were accompanied by the impaired assembly of the cortical actomyosin cytoskeleton. Overexpression of either wild-type COTL1 or its actin-binding deficient mutant tightened the paracellular barrier and activated junction-associated myosin II. Furthermore, the actin-uncoupled COTL1 mutant inhibited epithelial migration and matrix attachment. These findings highlight COTL1 as a novel regulator of the intestinal epithelial barrier integrity and repair.
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Affiliation(s)
| | | | | | | | | | | | - Andrei I. Ivanov
- Department of Inflammation and Immunity, Lerner Research Institute of Cleveland Clinic Foundation, Cleveland, OH, United States
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178
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Sankhe CS, Sacco JL, Lawton J, Fair RA, Soares DVR, Aldahdooh MKR, Gomez ED, Gomez EW. Breast Cancer Cells Exhibit Mesenchymal-Epithelial Plasticity Following Dynamic Modulation of Matrix Stiffness. Adv Biol (Weinh) 2024:e2400087. [PMID: 38977422 DOI: 10.1002/adbi.202400087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2024] [Revised: 05/31/2024] [Indexed: 07/10/2024]
Abstract
Mesenchymal-epithelial transition (MET) is essential for tissue and organ development and is thought to contribute to cancer by enabling the establishment of metastatic lesions. Despite its importance in both health and disease, there is a lack of in vitro platforms to study MET and little is known about the regulation of MET by mechanical cues. Here, hyaluronic acid-based hydrogels with dynamic and tunable stiffnesses mimicking that of normal and tumorigenic mammary tissue are synthesized. The platform is then utilized to examine the response of mammary epithelial cells and breast cancer cells to dynamic modulation of matrix stiffness. Gradual softening of the hydrogels reduces proliferation and increases apoptosis of breast cancer cells. Moreover, breast cancer cells exhibit temporal changes in cell morphology, cytoskeletal organization, and gene expression that are consistent with mesenchymal-epithelial plasticity as the stiffness of the matrix is reduced. A reduction in matrix stiffness attenuates the expression of integrin-linked kinase, and inhibition of integrin-linked kinase impacts proliferation, apoptosis, and gene expression in cells cultured on stiff and dynamic hydrogels. Overall, these findings reveal intermediate epithelial/mesenchymal states as cells move along a matrix stiffness-mediated MET trajectory and suggest an important role for matrix mechanics in regulating mesenchymal-epithelial plasticity.
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Affiliation(s)
- Chinmay S Sankhe
- Department of Chemical Engineering, The Pennsylvania State University, University Park, PA, 16802, USA
| | - Jessica L Sacco
- Department of Chemical Engineering, The Pennsylvania State University, University Park, PA, 16802, USA
| | - Jacob Lawton
- Department of Chemical Engineering, The Pennsylvania State University, University Park, PA, 16802, USA
| | - Ryan A Fair
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, PA, 16802, USA
| | | | - Mohammed K R Aldahdooh
- Department of Chemistry, The Pennsylvania State University, University Park, PA, 16802, USA
| | - Enrique D Gomez
- Department of Chemical Engineering, The Pennsylvania State University, University Park, PA, 16802, USA
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, PA, 16802, USA
| | - Esther W Gomez
- Department of Chemical Engineering, The Pennsylvania State University, University Park, PA, 16802, USA
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, PA, 16802, USA
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179
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Popova EY, Kawasawa YI, Leung M, Barnstable CJ. Temporal changes in mouse hippocampus transcriptome after pilocarpine-induced seizures. Front Neurosci 2024; 18:1384805. [PMID: 39040630 PMCID: PMC11260795 DOI: 10.3389/fnins.2024.1384805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2024] [Accepted: 06/07/2024] [Indexed: 07/24/2024] Open
Abstract
Introduction Status epilepticus (SE) is a seizure lasting more than 5 min that can have lethal consequences or lead to various neurological disorders, including epilepsy. Using a pilocarpine-induced SE model in mice we investigated temporal changes in the hippocampal transcriptome. Methods We performed mRNA-seq and microRNA-seq analyses at various times after drug treatment. Results At 1 h after the start of seizures, hippocampal cells upregulated transcription of immediate early genes and genes involved in the IGF-1, ERK/MAPK and RNA-PolII/transcription pathways. At 8 h, we observed changes in the expression of genes associated with oxidative stress, overall transcription downregulation, particularly for genes related to mitochondrial structure and function, initiation of a stress response through regulation of ribosome and translation/EIF2 signaling, and upregulation of an inflammatory response. During the middle of the latent period, 36 h, we identified upregulation of membrane components, cholesterol synthesis enzymes, channels, and extracellular matrix (ECM), as well as an increased inflammatory response. At the end of the latent period, 120 h, most changes in expression were in genes involved in ion transport, membrane channels, and synapses. Notably, we also elucidated the involvement of novel pathways, such as cholesterol biosynthesis pathways, iron/BMP/ferroptosis pathways, and circadian rhythms signaling in SE and epileptogenesis. Discussion These temporal changes in metabolic reactions indicate an immediate response to injury followed by recovery and regeneration. CREB was identified as the main upstream regulator. Overall, our data provide new insights into molecular functions and cellular processes involved at different stages of seizures and offer potential avenues for effective therapeutic strategies.
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Affiliation(s)
- Evgenya Y. Popova
- Department of Neural and Behavioral Sciences, Penn State University College of Medicine, Hershey, PA, United States
- Penn State Hershey Eye Center, Hershey, PA, United States
| | - Yuka Imamura Kawasawa
- Department of Pharmacology, Penn State University College of Medicine, Hershey, PA, United States
- Center for Cancer Genomics and Precision Oncology, Wake Forest Baptist Comprehensive Cancer Center, Winston Salem, NC, United States
| | - Ming Leung
- Center for Cancer Genomics and Precision Oncology, Wake Forest Baptist Comprehensive Cancer Center, Winston Salem, NC, United States
| | - Colin J. Barnstable
- Department of Neural and Behavioral Sciences, Penn State University College of Medicine, Hershey, PA, United States
- Penn State Hershey Eye Center, Hershey, PA, United States
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180
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Ghisleni A, Bonilla-Quintana M, Crestani M, Lavagnino Z, Galli C, Rangamani P, Gauthier NC. Mechanically induced topological transition of spectrin regulates its distribution in the mammalian cell cortex. Nat Commun 2024; 15:5711. [PMID: 38977673 PMCID: PMC11231315 DOI: 10.1038/s41467-024-49906-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Accepted: 06/24/2024] [Indexed: 07/10/2024] Open
Abstract
The cell cortex is a dynamic assembly formed by the plasma membrane and underlying cytoskeleton. As the main determinant of cell shape, the cortex ensures its integrity during passive and active deformations by adapting cytoskeleton topologies through yet poorly understood mechanisms. The spectrin meshwork ensures such adaptation in erythrocytes and neurons by adopting different organizations. Erythrocytes rely on triangular-like lattices of spectrin tetramers, whereas in neurons they are organized in parallel, periodic arrays. Since spectrin is ubiquitously expressed, we exploited Expansion Microscopy to discover that, in fibroblasts, distinct meshwork densities co-exist. Through biophysical measurements and computational modeling, we show that the non-polarized spectrin meshwork, with the intervention of actomyosin, can dynamically transition into polarized clusters fenced by actin stress fibers that resemble periodic arrays as found in neurons. Clusters experience lower mechanical stress and turnover, despite displaying an extension close to the tetramer contour length. Our study sheds light on the adaptive properties of spectrin, which participates in the protection of the cell cortex by varying its densities in response to key mechanical features.
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Affiliation(s)
- Andrea Ghisleni
- IFOM ETS, The AIRC Institute of Molecular Oncology, Milan, Italy
| | - Mayte Bonilla-Quintana
- Department of Mechanical and Aerospace Engineering, University of California San Diego, La Jolla, CA, USA
| | - Michele Crestani
- IFOM ETS, The AIRC Institute of Molecular Oncology, Milan, Italy
- Laboratory of Applied Mechanobiology, Department for Health Sciences and Technology, ETH Zürich, Zürich, Switzerland
| | - Zeno Lavagnino
- IFOM ETS, The AIRC Institute of Molecular Oncology, Milan, Italy
| | - Camilla Galli
- IFOM ETS, The AIRC Institute of Molecular Oncology, Milan, Italy
- Humanitas Cardio Center, IRCCS Humanitas Research Hospital, Rozzano (Milan, Italy
| | - Padmini Rangamani
- Department of Mechanical and Aerospace Engineering, University of California San Diego, La Jolla, CA, USA.
| | - Nils C Gauthier
- IFOM ETS, The AIRC Institute of Molecular Oncology, Milan, Italy.
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181
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Wang P, Driscoll WW, Travisano M. Genomic sequencing reveals convergent adaptation during experimental evolution in two budding yeast species. Commun Biol 2024; 7:825. [PMID: 38971878 PMCID: PMC11227552 DOI: 10.1038/s42003-024-06485-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Accepted: 06/21/2024] [Indexed: 07/08/2024] Open
Abstract
Convergent evolution is central in the origins of multicellularity. Identifying the basis for convergent multicellular evolution is challenging because of the diverse evolutionary origins and environments involved. Haploid Kluyveromyces lactis populations evolve multicellularity during selection for increased settling in liquid media. Strong genomic and phenotypic convergence is observed between K. lactis and previously selected S. cerevisiae populations under similar selection, despite their >100-million-year divergence. We find K. lactis multicellularity is conferred by mutations in genes ACE2 or AIM44, with ACE2 being predominant. They are a subset of the six genes involved in the S. cerevisiae multicellularity. Both ACE2 and AIM44 regulate cell division, indicating that the genetic convergence is likely due to conserved cellular replication mechanisms. Complex population dynamics involving multiple ACE2/AIM44 genotypes are found in most K. lactis lineages. The results show common ancestry and natural selection shape convergence while chance and contingency determine the degree of divergence.
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Affiliation(s)
- Pu Wang
- Department of Genetics, Cell Biology and Development, University of Minnesota, Minneapolis, MN, 55455, USA.
- Department of Ecology, Evolution, and Behavior, University of Minnesota, Saint Paul, MN, 55108, USA.
| | - William W Driscoll
- Department of Ecology, Evolution, and Behavior, University of Minnesota, Saint Paul, MN, 55108, USA
- Biology Department, Penn State Harrisburg, Harrisburg, PA, 17057, USA
| | - Michael Travisano
- Department of Ecology, Evolution, and Behavior, University of Minnesota, Saint Paul, MN, 55108, USA
- Biotechnology Institute, University of Minnesota, Minneapolis, MN, 55108, USA
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182
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Müller L, Keil R, Glaß M, Hatzfeld M. Plakophilin 4 controls the spatio-temporal activity of RhoA at adherens junctions to promote cortical actin ring formation and tissue tension. Cell Mol Life Sci 2024; 81:291. [PMID: 38970683 PMCID: PMC11335210 DOI: 10.1007/s00018-024-05329-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 05/17/2024] [Accepted: 06/18/2024] [Indexed: 07/08/2024]
Abstract
Plakophilin 4 (PKP4) is a component of cell-cell junctions that regulates intercellular adhesion and Rho-signaling during cytokinesis with an unknown function during epidermal differentiation. Here we show that keratinocytes lacking PKP4 fail to develop a cortical actin ring, preventing adherens junction maturation and generation of tissue tension. Instead, PKP4-depleted cells display increased stress fibers. PKP4-dependent RhoA localization at AJs was required to activate a RhoA-ROCK2-MLCK-MLC2 axis and organize actin into a cortical ring. AJ-associated PKP4 provided a scaffold for the Rho activator ARHGEF2 and the RhoA effectors MLCK and MLC2, facilitating the spatio-temporal activation of RhoA signaling at cell junctions to allow cortical ring formation and actomyosin contraction. In contrast, association of PKP4 with the Rho suppressor ARHGAP23 reduced ARHGAP23 binding to RhoA which prevented RhoA activation in the cytoplasm and stress fiber formation. These data identify PKP4 as an AJ component that transduces mechanical signals into cytoskeletal organization.
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Affiliation(s)
- Lisa Müller
- Institute of Molecular Medicine, Martin Luther University Halle-Wittenberg, Charles Tanford Protein Research Center, Kurt-Mothes-Str. 3A, 06120, Halle, Germany.
| | - René Keil
- Institute of Molecular Medicine, Martin Luther University Halle-Wittenberg, Charles Tanford Protein Research Center, Kurt-Mothes-Str. 3A, 06120, Halle, Germany
| | - Markus Glaß
- Institute of Molecular Medicine, Martin Luther University Halle-Wittenberg, Charles Tanford Protein Research Center, Kurt-Mothes-Str. 3A, 06120, Halle, Germany
| | - Mechthild Hatzfeld
- Institute of Molecular Medicine, Martin Luther University Halle-Wittenberg, Charles Tanford Protein Research Center, Kurt-Mothes-Str. 3A, 06120, Halle, Germany
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183
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Macarelli V, Harding EC, Gershlick DC, Merkle FT. A Short Sequence Targets Transmembrane Proteins to Primary Cilia. Cells 2024; 13:1156. [PMID: 38995007 PMCID: PMC11240719 DOI: 10.3390/cells13131156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2024] [Revised: 06/26/2024] [Accepted: 07/02/2024] [Indexed: 07/13/2024] Open
Abstract
Primary cilia are finger-like sensory organelles that extend from the bodies of most cell types and have a distinct lipid and protein composition from the plasma membrane. This partitioning is maintained by a diffusion barrier that restricts the entry of non-ciliary proteins, and allows the selective entry of proteins harboring a ciliary targeting sequence (CTS). However, CTSs are not stereotyped and previously reported sequences are insufficient to drive efficient ciliary localisation across diverse cell types. Here, we describe a short peptide sequence that efficiently targets transmembrane proteins to primary cilia in all tested cell types, including human neurons. We generate human-induced pluripotent stem cell (hiPSC) lines stably expressing a transmembrane construct bearing an extracellular HaloTag and intracellular fluorescent protein, which enables the bright, specific labeling of primary cilia in neurons and other cell types to facilitate studies of cilia in health and disease. We demonstrate the utility of this resource by developing an image analysis pipeline for the automated measurement of primary cilia to detect changes in their length associated with altered signaling or disease state.
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Affiliation(s)
- Viviana Macarelli
- Institute of Metabolic Science, University of Cambridge, Cambridge CB2 0QQ, UK
- Cambridge Stem Cell Institute, University of Cambridge, Cambridge CB2 0AW, UK
| | - Edward C Harding
- Institute of Metabolic Science, University of Cambridge, Cambridge CB2 0QQ, UK
| | - David C Gershlick
- Cambridge Institute for Medical Research, University of Cambridge, Cambridge CB2 0XY, UK
| | - Florian T Merkle
- Institute of Metabolic Science, University of Cambridge, Cambridge CB2 0QQ, UK
- Cambridge Stem Cell Institute, University of Cambridge, Cambridge CB2 0AW, UK
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184
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Prislusky MI, Lam JGT, Contreras VR, Ng M, Chamberlain M, Pathak-Sharma S, Fields M, Zhang X, Amer AO, Seveau S. The septin cytoskeleton is required for plasma membrane repair. EMBO Rep 2024:10.1038/s44319-024-00195-6. [PMID: 38969946 DOI: 10.1038/s44319-024-00195-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Revised: 05/30/2024] [Accepted: 06/07/2024] [Indexed: 07/07/2024] Open
Abstract
Plasma membrane repair is a fundamental homeostatic process of eukaryotic cells. Here, we report a new function for the conserved cytoskeletal proteins known as septins in the repair of cells perforated by pore-forming toxins or mechanical disruption. Using a silencing RNA screen, we identified known repair factors (e.g. annexin A2, ANXA2) and novel factors such as septin 7 (SEPT7) that is essential for septin assembly. Upon plasma membrane injury, the septin cytoskeleton is extensively redistributed to form submembranous domains arranged as knob and loop structures containing F-actin, myosin IIA, S100A11, and ANXA2. Formation of these domains is Ca2+-dependent and correlates with plasma membrane repair efficiency. Super-resolution microscopy revealed that septins and F-actin form intertwined filaments associated with ANXA2. Depletion of SEPT7 prevented ANXA2 recruitment and formation of submembranous actomyosin domains. However, ANXA2 depletion had no effect on domain formation. Collectively, our data support a novel septin-based mechanism for resealing damaged cells, in which the septin cytoskeleton plays a key structural role in remodeling the plasma membrane by promoting the formation of SEPT/F-actin/myosin IIA/ANXA2/S100A11 repair domains.
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Affiliation(s)
- M Isabella Prislusky
- Department of Microbial Infection & Immunity, Wexner Medical Center, The Ohio State University, Columbus, OH, USA
| | - Jonathan G T Lam
- Department of Microbial Infection & Immunity, Wexner Medical Center, The Ohio State University, Columbus, OH, USA
| | - Viviana Ruiz Contreras
- Department of Microbial Infection & Immunity, Wexner Medical Center, The Ohio State University, Columbus, OH, USA
- Grupo Investigaciones Biomédicas, Universidad de Sucre, Sincelejo, Sucre, Colombia
| | - Marilynn Ng
- Department of Microbial Infection & Immunity, Wexner Medical Center, The Ohio State University, Columbus, OH, USA
| | - Madeline Chamberlain
- Department of Microbial Infection & Immunity, Wexner Medical Center, The Ohio State University, Columbus, OH, USA
| | - Sarika Pathak-Sharma
- Department of Microbial Infection & Immunity, Wexner Medical Center, The Ohio State University, Columbus, OH, USA
| | - Madalyn Fields
- Department of Microbial Infection & Immunity, Wexner Medical Center, The Ohio State University, Columbus, OH, USA
| | - Xiaoli Zhang
- Department of Biomedical Informatics, The Ohio State University, Columbus, OH, USA
| | - Amal O Amer
- Department of Microbial Infection & Immunity, Wexner Medical Center, The Ohio State University, Columbus, OH, USA
| | - Stephanie Seveau
- Department of Microbial Infection & Immunity, Wexner Medical Center, The Ohio State University, Columbus, OH, USA.
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185
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Hamed M, Kotob MH, Abou Khalil NS, Anwari EA, El Gazzar WB, Idriss SKA, Fakhry ME, Farag AA, Sabra MS, Salaah SM, Abdel-Zaher S, Yehia Saad FA, Naguib M, Lee JS, Sayed AEDH. Hyaluronic acid impacts hematological endpoints and spleen histological features in African catfish (Clarias gariepinus). BMC Vet Res 2024; 20:294. [PMID: 38970005 PMCID: PMC11225171 DOI: 10.1186/s12917-024-04113-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Accepted: 06/04/2024] [Indexed: 07/07/2024] Open
Abstract
Since its identification in the vitreous humour of the eye and laboratory biosynthesis, hyaluronic acid (HA) has been a vital component in several pharmaceutical, nutritional, medicinal, and cosmetic uses. However, little is known about its potential toxicological impacts on aquatic inhabitants. Herein, we investigated the hematological response of Clarias gariepinus to nominal doses of HA. To achieve this objective, 72 adult fish were randomly and evenly distributed into four groups: control, low-dose (0.5 mg/l HA), medium-dose (10 mg/l HA), and high-dose (100 mg/l HA) groups for two weeks each during both the exposure and recovery periods. The findings confirmed presence of anemia, neutrophilia, leucopoenia, lymphopenia, and eosinophilia at the end of exposure to HA. In addition, poikilocytosis and a variety of cytomorphological disturbances were observed. Dose-dependent histological alterations in spleen morphology were observed in the exposed groups. After HA removal from the aquarium for 2 weeks, the groups exposed to the two highest doses still exhibited a notable decline in red blood cell count, hemoglobin concentration, mean corpuscular hemoglobin concentration, and an increase in mean corpuscular volume. Additionally, there was a significant rise in neutrophils, eosinophils, cell alterations, and nuclear abnormalities percentages, along with a decrease in monocytes, coupled with a dose-dependent decrease in lymphocytes. Furthermore, only the highest dose of HA in the recovered groups continued to cause a significant increase in white blood cells. White blood cells remained lower, and the proportion of apoptotic RBCs remained higher in the high-dose group. The persistence of most of the haematological and histological disorders even after recovery period indicates a failure of physiological compensatory mechanisms to overcome the HA-associated problems or insufficient duration of recovery. Thus, these findings encourage the inclusion of this new hazardous agent in the biomonitoring program and provide a specific pattern of hematological profile in HA-challenged fish. Further experiments are highly warranted to explore other toxicological hazards of HA using dose/time window protocols.
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Affiliation(s)
- Mohamed Hamed
- Department of Zoology, Faculty of Science, Al-Azhar University (Assiut Branch), Assiut, 71524, Egypt
- Department of Comparative Biomedical Sciences, School of Veterinary Medicine, Louisiana State University, Skip Bertman Drive, Baton Rouge, LA, 70803, USA
| | - Mohamed H Kotob
- Department of Pathology, Faculty of Veterinary Medicine, Assiut University, Assiut, 71526, Egypt
- Division of Pharmacology and Toxicology, Department of Pharmaceutical Sciences, University of Vienna, Vienna, 1090, Austria
| | - Nasser S Abou Khalil
- Department of Animal Physiology and Biochemistry, Faculty of Veterinary Medicine, Badr University, Assuit, Egypt
- Department of Medical Physiology, Faculty of Medicine, Assuit University, Assiut, 71516, Egypt
| | - Esraa A Anwari
- Department of Zoology, Faculty of Science, Assiut University, Assiut, 71516, Egypt
| | - Walaa Bayoumie El Gazzar
- Department of Anatomy, Physiology and Biochemistry, Faculty of Medicine, the Hashemite University, Zarqa, 13133, Jordan
- 9Department of Medical Biochemistry and Molecular Biology, Faculty of Medicine, Benha University, Benha City, 13518, Egypt
| | - Shaimaa K A Idriss
- Department of Aquatic Animal Medicine and Management, Faculty of Veterinary Medicine, Assiut University, Assiut, 71516, Egypt
| | - Michel E Fakhry
- Department of Medical Biochemistry and molecular biology, Faculty of Medicine, Assiut University, Assiut, 71516, Egypt
| | - Amina A Farag
- Department of Forensic Medicine and Clinical Toxicology, Faculty of Medicine, Benha University, Benha City, 13518, Egypt
| | - Mahmoud S Sabra
- Department of Pharmacology, Faculty of Veterinary Medicine, Assiut University, Assiut, 71516, Egypt
| | - Sally M Salaah
- Fresh Water Division, National Institute of Oceanography and Fisheries, NIOF, Cairo, Egypt
| | - Souzan Abdel-Zaher
- Department of Molecular Biology, Molecular Biology Research & Studies Institute, Assiut University, Assiut, 71516, Egypt
| | - Fatma Alzahraa Yehia Saad
- Department of Biotechnology, Molecular Biology Research & Studies Institute, Assiut University, Assiut, 71516, Egypt
| | - Mervat Naguib
- Department of Zoology, Faculty of Science, Assiut University, Assiut, 71516, Egypt
| | - Jae-Seong Lee
- Department of Biological Sciences, College of Science, Sungkyunkwan University, Suwon, 16419, South Korea
| | - Alaa El-Din H Sayed
- Department of Zoology, Faculty of Science, Assiut University, Assiut, 71516, Egypt.
- Department of Molecular Biology, Molecular Biology Research & Studies Institute, Assiut University, Assiut, 71516, Egypt.
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186
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Duranova H, Kuzelova L, Borotova P, Simora V, Fialkova V. Human Umbilical Vein Endothelial Cells as a Versatile Cellular Model System in Diverse Experimental Paradigms: An Ultrastructural Perspective. MICROSCOPY AND MICROANALYSIS : THE OFFICIAL JOURNAL OF MICROSCOPY SOCIETY OF AMERICA, MICROBEAM ANALYSIS SOCIETY, MICROSCOPICAL SOCIETY OF CANADA 2024; 30:419-439. [PMID: 38817111 DOI: 10.1093/mam/ozae048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 04/15/2024] [Accepted: 04/30/2024] [Indexed: 06/01/2024]
Abstract
Human umbilical vein endothelial cells (HUVECs) are primary cells isolated from the vein of an umbilical cord, extensively used in cardiovascular studies and medical research. These cells, retaining the characteristics of endothelial cells in vivo, serve as a valuable cellular model system for understanding vascular biology, endothelial dysfunction, pathophysiology of diseases such as atherosclerosis, and responses to different drugs or treatments. Transmission electron microscopy (TEM) has been a cornerstone in revealing the detailed architecture of multiple cellular model systems including HUVECs, allowing researchers to visualize subcellular organelles, membrane structures, and cytoskeletal elements. Among them, the endoplasmic reticulum, Golgi apparatus, mitochondria, and nucleus can be meticulously examined to recognize alterations indicative of cellular responses to various stimuli. Importantly, Weibel-Palade bodies are characteristic secretory organelles found in HUVECs, which can be easily distinguished in the TEM. These distinctive structures also dynamically react to different factors through regulated exocytosis, resulting in complete or selective release of their contents. This detailed review summarizes the ultrastructural features of HUVECs and highlights the utility of TEM as a pivotal tool for analyzing HUVECs in diverse research frameworks, contributing valuable insights into the comprehension of HUVEC behavior and enriching our knowledge into the complexity of vascular biology.
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Affiliation(s)
- Hana Duranova
- AgroBioTech Research Centre, Slovak University of Agriculture, Tr. A. Hlinku 2, 949 76 Nitra, Slovak Republic
| | - Lenka Kuzelova
- AgroBioTech Research Centre, Slovak University of Agriculture, Tr. A. Hlinku 2, 949 76 Nitra, Slovak Republic
- Faculty of Biotechnology and Food Sciences, Institute of Biotechnology, Slovak University of Agriculture, Tr. A. Hlinku 2, 949 76 Nitra, Slovak Republic
| | - Petra Borotova
- AgroBioTech Research Centre, Slovak University of Agriculture, Tr. A. Hlinku 2, 949 76 Nitra, Slovak Republic
| | - Veronika Simora
- AgroBioTech Research Centre, Slovak University of Agriculture, Tr. A. Hlinku 2, 949 76 Nitra, Slovak Republic
| | - Veronika Fialkova
- AgroBioTech Research Centre, Slovak University of Agriculture, Tr. A. Hlinku 2, 949 76 Nitra, Slovak Republic
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187
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Pollard LW, Boczkowska M, Dominguez R, Ostap EM. Myosin-1C differentially displaces tropomyosin isoforms altering their inhibition of motility. J Biol Chem 2024; 300:107539. [PMID: 38971309 PMCID: PMC11338116 DOI: 10.1016/j.jbc.2024.107539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2024] [Revised: 06/25/2024] [Accepted: 06/27/2024] [Indexed: 07/08/2024] Open
Abstract
Force generation and motility by actomyosin in nonmuscle cells are spatially regulated by ∼40 tropomyosin (Tpm) isoforms. The means by which Tpms are targeted to specific cellular regions and the mechanisms that result in differential activity of myosin paralogs are unknown. We show that Tpm3.1 and Tpm1.7 inhibit Myosin-IC (Myo1C), with Tpm1.7 more effectively reducing the number of gliding filaments than Tpm3.1. Strikingly, cosedimentation and fluorescence microscopy assays revealed that Tpm3.1 is displaced from actin by Myo1C and not by myosin-II. In contrast, Tpm1.7 is only weakly displaced by Myo1C. Unlike other characterized myosins, Myo1C motility is inhibited by Tpm when the Tpm-actin filament is activated by myosin-II. These results point to a mechanism for the exclusion of myosin-I paralogs from cellular Tpm-decorated actin filaments that are activated by other myosins. Additionally, our results suggest a potential mechanism for myosin-induced Tpm sorting in cells.
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Affiliation(s)
- Luther W Pollard
- Department of Physiology and Pennsylvania Muscle Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
| | - Malgorzata Boczkowska
- Department of Physiology and Pennsylvania Muscle Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Roberto Dominguez
- Department of Physiology and Pennsylvania Muscle Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - E Michael Ostap
- Department of Physiology and Pennsylvania Muscle Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
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188
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Ruhoff VT, Leijnse N, Doostmohammadi A, Bendix PM. Filopodia: integrating cellular functions with theoretical models. Trends Cell Biol 2024:S0962-8924(24)00113-2. [PMID: 38969554 DOI: 10.1016/j.tcb.2024.05.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 05/24/2024] [Accepted: 05/27/2024] [Indexed: 07/07/2024]
Abstract
Filopodia, widely distributed on cell surfaces, are distinguished by their dynamic extensions, playing pivotal roles in a myriad of biological processes. Their functions span from mechanosensing and guidance to cell-cell communication during cellular organization in the early embryo. Filopodia have significant roles in pathogenic processes, such as cancer invasion and viral dissemination. Molecular mapping of the filopodome has revealed generic components essential for filopodia functions. In parallel, recent insights into biophysical mechanisms governing filopodia dynamics have provided the foundation for broader investigations of filopodia's biological functions. We highlight recent discoveries of engagement of filopodia in various stages of development and pathogenesis and present an overview of intricate molecular and physical features of these cellular structures across a spectrum of cellular activities.
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Affiliation(s)
| | - Natascha Leijnse
- Niels Bohr Institute, University of Copenhagen, Blegdamsvej 17, 2100 København Ø, Denmark
| | - Amin Doostmohammadi
- Niels Bohr Institute, University of Copenhagen, Blegdamsvej 17, 2100 København Ø, Denmark
| | - Poul Martin Bendix
- Niels Bohr Institute, University of Copenhagen, Blegdamsvej 17, 2100 København Ø, Denmark.
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189
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Zhang Y, Kunii M, Taniguchi M, Yoshimura SI, Harada A. Rab6-Mediated Polarized Transport of Synaptic Vesicle Precursors Is Essential for the Establishment of Neuronal Polarity and Brain Formation. J Neurosci 2024; 44:e2334232024. [PMID: 38830762 PMCID: PMC11223463 DOI: 10.1523/jneurosci.2334-23.2024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 05/13/2024] [Accepted: 05/26/2024] [Indexed: 06/05/2024] Open
Abstract
Neurons are highly polarized cells that are composed of a single axon and multiple dendrites. Axon-dendrite polarity is essential for proper tissue formation and brain functions. Intracellular protein transport plays an important role in the establishment of neuronal polarity. However, the regulatory mechanism of polarized transport remains unclear. Here, we show that Rab6, a small GTPase that acts on the regulation of intracellular vesicular trafficking, plays key roles in neuronal polarization and brain development. Central nervous system-specific Rab6a/b double knock-out (Rab6 DKO) mice of both sexes exhibit severe dysplasia of the neocortex and the cerebellum. In the Rab6 DKO neocortex, impaired axonal extension of neurons results in hypoplasia of the intermediate zone. In vitro, deletion of Rab6a and Rab6b in cultured neurons from both sexes causes the abnormal accumulation of synaptic vesicle precursors (SVPs) adjacent to the Golgi apparatus, which leads to defects in axonal extension and the loss of axon-dendrite polarity. Moreover, Rab6 DKO causes significant expansion of lysosomes in the soma in neurons. Overall, our results reveal that Rab6-mediated polarized transport of SVPs is crucial for neuronal polarization and subsequent brain formation.
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Affiliation(s)
- Yu Zhang
- Departments of Cell Biology, Graduate School of Medicine, Osaka University, Osaka 565-0871, Japan
| | - Masataka Kunii
- Departments of Cell Biology, Graduate School of Medicine, Osaka University, Osaka 565-0871, Japan
| | - Manabu Taniguchi
- Anatomy and Neuroscience, Graduate School of Medicine, Osaka University, Osaka 565-0871, Japan
| | - Shin-Ichiro Yoshimura
- Departments of Cell Biology, Graduate School of Medicine, Osaka University, Osaka 565-0871, Japan
| | - Akihiro Harada
- Departments of Cell Biology, Graduate School of Medicine, Osaka University, Osaka 565-0871, Japan
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190
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Wang J, Jiang H. A novel mitochondrial function-associated programmed cell death-related prognostic signature for predicting the prognosis of early breast cancer. Front Genet 2024; 15:1406426. [PMID: 39015775 PMCID: PMC11249562 DOI: 10.3389/fgene.2024.1406426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Accepted: 05/28/2024] [Indexed: 07/18/2024] Open
Abstract
Purpose: To screen mitochondrial function-associated PCD-related biomarkers and construct a risk model for predicting the prognosis of early breast cancer. Methods: Data on gene expression levels and clinical information were obtained from the TCGA database, and GSE42568 and GSE58812 datasets were obtained from GEO database. The mitochondrial function-associated programmed cell death (PCD) related genes in early breast cancer were identified, then LASSO logistic regression, SVM-RFE, random forest (RF), and multiple Cox logistic regression analysis were employed to construct a prognostic risk model. Differences in immune infiltration, drug sensitivity, and immunotherapy response were evaluated between groups. Lastly, the qRT-PCR was employed to confirm the key genes. Results: Total 1,478 DEGs were screened between normal and early breast cancer groups, and these DEGs were involved in PI3K-Akt signaling pathway, focal adhesion, and ECM-receptor interaction pathways. Then total 178 mitochondrial function-associated PCD related genes were obtained, followed by a four mitochondrial function-associated PCD related genes prognostic model and nomogram were built. In addition, total 2 immune checkpoint genes were lowly expressed in the high-risk group, including CD47 and LAG3, and the fraction of some immune cells in high- and low-risk groups had significant difference, such as macrophage, eosinophil, mast cell, etc., and the Top3 chemotherapeutics with significant differences were included FH535, MK.2206, and bicalutamide. Finally, the qRT-qPCR results shown that the CREB3L1, CAPG, SPINT1 and GRK3 mRNA expression were in line with the bioinformatics analysis results. Conclusion: Four mitochondrial function-associated PCD-related genes were identified, including CREB3L1, CAPG, SPINT1, and GRK3, and the prognostic risk model and nomogram were established for predicting the survival of early breast cancer patient. The chemotherapeutics, containing FH535, MK.2206, and bicalutamide, might be used for early breast cancer.
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Affiliation(s)
- Jian Wang
- Department of Breast Vascular Intervention, Qingzhou People’s Hospital, Qingzhou, Shandong, China
| | - Haiming Jiang
- Department of General Surgery, Qingzhou People’s Hospital, Qingzhou, Shandong, China
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191
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Kubo T, Sasaki R, Oda T. Tubulin glycylation controls ciliary motility through modulation of outer-arm dyneins. Mol Biol Cell 2024; 35:ar90. [PMID: 38758663 PMCID: PMC11244163 DOI: 10.1091/mbc.e24-04-0154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/19/2024] Open
Abstract
Tubulins undergo several kinds of posttranslational modifications (PTMs) including glutamylation and glycylation. The contribution of these PTMs to the motilities of cilia and flagella is still unclear. Here, we investigated the role of tubulin glycylation by examining a novel Chlamydomonas mutant lacking TTLL3, an enzyme responsible for initiating glycylation. Immunostaining of cells and flagella revealed that glycylation is only restricted to the axonemal tubulin composing the outer-doublet but not the central-pair microtubules. Furthermore, the flagellar localization of TTLL3 was found to be dependent on intraflagellar transport. The mutant, ttll3(ex5), completely lacks glycylation and consequently exhibits slower swimming velocity compared with the wild-type strain. By combining the ttll3(ex5) mutation with multiple axonemal dynein-deficient mutants, we found that the lack of glycylation does not affect the motility of the outer-arm dynein lacking mutations. Sliding disintegration assay using isolated axonemes revealed that the lack of glycylation decreases microtubule sliding velocity in the normal axoneme but not in the axoneme lacking the outerarm dyneins. Based on our recent study that glycylation occurs exclusively on β-tubulin in Chlamydomonas, these findings suggest that tubulin glycylation controls flagellar motility through modulating outer-arm dyneins, presumably by neutralizing the negative charges of glutamate residues at the C-terminus region of β-tubulin.
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Affiliation(s)
- Tomohiro Kubo
- Department of Anatomy and Structural Biology, Graduate School of Medicine, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, 409-3898, Japan
| | - Rinka Sasaki
- Department of Anatomy and Structural Biology, Graduate School of Medicine, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, 409-3898, Japan
| | - Toshiyuki Oda
- Department of Anatomy and Structural Biology, Graduate School of Medicine, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, 409-3898, Japan
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192
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Alamri A. Sema-3E/PlexinD1 axis modulates dendritic cell phenotypes and functions: Current status and future implications. Hum Immunol 2024; 85:110815. [PMID: 38772051 DOI: 10.1016/j.humimm.2024.110815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2024] [Revised: 05/03/2024] [Accepted: 05/15/2024] [Indexed: 05/23/2024]
Abstract
This comprehensive research review explores the complex interplay between the Sema-3E/PlexinD1 axis and dendritic cells (DCs), highlighting its critical role in immune modulation with implications for clinical application Critical regulators of immune responses Dendritic cells are central to adaptive immunity, and the Sema-3E /PlexinD1 axis emerges as a key modulator affecting their phenotypes and functions Review delineates the impact of this signaling axis on DC maturation, migration, antigen presentation, and cytokine production, unravels its multifaceted role in shaping the immune response. Recognizing the limitations and gaps in current knowledge, the study highlights the need for further studies to condition downstream signaling events and related information experienced by the Sema-3E/PlexinD1 axis emphasizes the clarity of the immune system. The review concludes by identifying opportunities for translation, focusing on therapeutic and diagnostic potential. It highlights the importance of collaborative, interdisciplinary efforts to address the challenges and harness the therapeutic and pathological potential of targeting the Sema-3E/PlexinD1 axis, thus opening the way for transformative advances in immunology and clinical medicine.
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Affiliation(s)
- Abdulaziz Alamri
- Department of Biochemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia.
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193
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Ansari MA, Al-Jarallah A, Rao MS, Babiker A, Bensalamah K. Upregulation of NADPH-oxidase, inducible nitric oxide synthase and apoptosis in the hippocampus following impaired insulin signaling in the rats: Development of sporadic Alzheimer's disease. Brain Res 2024; 1834:148890. [PMID: 38552936 DOI: 10.1016/j.brainres.2024.148890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 02/21/2024] [Accepted: 03/26/2024] [Indexed: 04/06/2024]
Abstract
NADPH-oxidase (NOX) is a multi-subunit enzyme complex. The upregulation of NOX causes massive production of superoxide (O2¯), which avidly reacts with nitric oxide (NO) and increases cellular reactive oxygen/nitrogen species (ROS/RNS). Increased ROS/RNS plays pivotal role in the sporadic Alzheimer's disease (sAD) development and brain damage following impaired insulin signaling. Hence, this study aimed to examine early-time course of changes in NOX and NOS expression, and apoptotic proteins in the rats hippocampi following insulin signaling impairment [induced by STZ injection; intraperitoneal (IP) or in cerebral ventricles (ICV)]. Early effects (1, 3, or 6 weeks) on the NOX activity, translocation of NOX subunits from cytosol to the membrane, NO-synthases [neuronal-, inducible- and endothelial-NOS; nNOS, iNOS and eNOS], The Rac-1 protein expression, levels of NO and O2¯, cytochrome c release, caspase-3 and 9 activations (cleavage) were studied. STZ injection (in both models) increased NOX activity, O2¯ production, and enhanced cytosolic subunits translocation into membrane. The iNOS but not nNOS and eNOS expression and NO levels were increased in STZ treated rats. Finally, STZ injection increased cytochrome c release, caspase-3 and 9 activations in a manner that was significantly associated with levels of O2¯ and NO in the hippocampus. ICV-STZ administration resulted in significant profound changes over the IP route. In conclusion, impairment in insulin function induces early changes in ROS/RNS contents through NOX and iNOS upregulation and neuronal apoptosis in the hippocampus. Our results could mechanistically explain the role of impaired insulin function in the development of sAD.
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Affiliation(s)
- Mubeen A Ansari
- Department of Pharmacology and Toxicology, Kuwait University, Kuwait City, Safat 13110, Kuwait.
| | - Aishah Al-Jarallah
- Department of Biochemistry, Kuwait University, Kuwait City, Safat 13110, Kuwait
| | - Muddanna S Rao
- Department of Anatomy, Kuwait University, Kuwait City, Safat 13110, Kuwait
| | - Ahmed Babiker
- Faculty of Medicine, Kuwait University, Kuwait City, Safat 13110, Kuwait
| | - Khaled Bensalamah
- Faculty of Medicine, Kuwait University, Kuwait City, Safat 13110, Kuwait
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194
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Christophers B, Leahy SN, Soffar DB, von Saucken VE, Broadie K, Baylies MK. Muscle cofilin alters neuromuscular junction postsynaptic development to strengthen functional neurotransmission. Development 2024; 151:dev202558. [PMID: 38869008 PMCID: PMC11266751 DOI: 10.1242/dev.202558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Accepted: 06/05/2024] [Indexed: 06/14/2024]
Abstract
Cofilin, an actin-severing protein, plays key roles in muscle sarcomere addition and maintenance. Our previous work found that Drosophila cofilin (DmCFL) knockdown in muscle causes progressive deterioration of muscle structure and function and produces features seen in nemaline myopathy caused by cofilin mutations. We hypothesized that disruption of actin cytoskeleton dynamics by DmCFL knockdown would impact other aspects of muscle development, and, thus, conducted an RNA-sequencing analysis that unexpectedly revealed upregulated expression of numerous neuromuscular junction (NMJ) genes. We found that DmCFL is enriched in the muscle postsynaptic compartment and that DmCFL muscle knockdown causes F-actin disorganization in this subcellular domain prior to the sarcomere defects observed later in development. Despite NMJ gene expression changes, we found no significant changes in gross presynaptic Bruchpilot active zones or total postsynaptic glutamate receptor levels. However, DmCFL knockdown resulted in mislocalization of GluRIIA class glutamate receptors in more deteriorated muscles and strongly impaired NMJ transmission strength. These findings expand our understanding of the roles of cofilin in muscle to include NMJ structural development and suggest that NMJ defects may contribute to the pathophysiology of nemaline myopathy.
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Affiliation(s)
- Briana Christophers
- Weill Cornell–Rockefeller–Sloan Kettering Tri-Institutional MD-PhD Program, New York, NY 10065, USA
- Biochemistry, Cell & Developmental Biology, and Molecular Biology (BCMB) program, Weill Cornell Graduate School of Medical Sciences, New York, NY 10065, USA
- Developmental Biology Program, Sloan Kettering Institute, Memorial Sloan Kettering, Cancer Center, New York, NY 10065, USA
| | - Shannon N. Leahy
- Department of Biological Sciences, Vanderbilt University and Medical Center, Nashville, TN 37235, USA
| | - David B. Soffar
- Developmental Biology Program, Sloan Kettering Institute, Memorial Sloan Kettering, Cancer Center, New York, NY 10065, USA
| | - Victoria E. von Saucken
- Weill Cornell–Rockefeller–Sloan Kettering Tri-Institutional MD-PhD Program, New York, NY 10065, USA
- Biochemistry, Cell & Developmental Biology, and Molecular Biology (BCMB) program, Weill Cornell Graduate School of Medical Sciences, New York, NY 10065, USA
- Developmental Biology Program, Sloan Kettering Institute, Memorial Sloan Kettering, Cancer Center, New York, NY 10065, USA
| | - Kendal Broadie
- Department of Biological Sciences, Vanderbilt University and Medical Center, Nashville, TN 37235, USA
- Kennedy Center for Research on Human Development, Vanderbilt University and Medical Center, Nashville, TN 37235, USA
- Vanderbilt Brain Institute, Vanderbilt University and Medical Center, Nashville, TN 37235, USA
| | - Mary K. Baylies
- Biochemistry, Cell & Developmental Biology, and Molecular Biology (BCMB) program, Weill Cornell Graduate School of Medical Sciences, New York, NY 10065, USA
- Developmental Biology Program, Sloan Kettering Institute, Memorial Sloan Kettering, Cancer Center, New York, NY 10065, USA
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195
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Wolf MTF, Bonsib SM, Larsen CP, Hildebrandt F. Nephronophthisis: a pathological and genetic perspective. Pediatr Nephrol 2024; 39:1977-2000. [PMID: 37930417 DOI: 10.1007/s00467-023-06174-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 09/08/2023] [Accepted: 09/08/2023] [Indexed: 11/07/2023]
Abstract
Nephronophthisis (NPHP) is an autosomal recessive cystic kidney disease and is one of the most frequent genetic causes for kidney failure (KF) in children and adolescents. Over 20 genes cause NPHP and over 90 genes contribute to renal ciliopathies often involving multiple organs. About 15-20% of NPHP patients have additional extrarenal symptoms affecting other organs than the kidneys. The involvement of additional organ systems in syndromic forms of NPHP is explained by shared expression of most NPHP gene products in centrosomes and primary cilia, a sensory organelle present in most mammalian cells. This finding resulted in the classification of NPHP as a ciliopathy. If extrarenal symptoms are present in addition to NPHP, these disorders are defined as NPHP-related ciliopathies (NPHP-RC) and can involve the retina (e.g., with Senior-Løken syndrome), CNS (central nervous system) (e.g., with Joubert syndrome), liver (e.g., Boichis and Arima syndromes), or bone (e.g., Mainzer-Saldino and Sensenbrenner syndromes). This review focuses on the pathological findings and the recent genetic advances in NPHP and NPHP-RC. Different mechanisms and signaling pathways are involved in NPHP ranging from planar cell polarity, sonic hedgehog signaling (Shh), DNA damage response pathway, Hippo, mTOR, and cAMP signaling. A number of therapeutic interventions appear to be promising, ranging from vasopressin receptor 2 antagonists such as tolvaptan, cyclin-dependent kinase inhibitors such as roscovitine, Hh agonists such as purmorphamine, and mTOR inhibitors such as rapamycin.
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Affiliation(s)
- Matthias T F Wolf
- Division of Pediatric Nephrology, University of Texas, Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX, 75390, USA.
- Division of Pediatric Nephrology, C.S. Mott Children's Hospital, University of Michigan, 1150 W. Medical Center Dr, Ann Arbor, MI, 48109, USA.
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196
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Calderan C, Sorrentino U, Persano L, Trevisson E, Sartori G, Salviati L, Desbats MA. A yeast based assay establishes the pathogenicity of novel missense ACTA2 variants associated with aortic aneurysms. Eur J Hum Genet 2024; 32:804-812. [PMID: 38486025 PMCID: PMC11219741 DOI: 10.1038/s41431-024-01591-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 03/01/2024] [Accepted: 03/07/2024] [Indexed: 07/04/2024] Open
Abstract
The ACTA2 gene codes for alpha-smooth muscle actin, a critical component of the contractile apparatus of the vascular smooth muscle cells. Autosomal dominant variants in the ACTA2 gene have been associated to familial non-syndromic thoracic aortic aneurysm/dissection (TAAD). They are thought to act through a dominant-negative mechanism. These variants display incomplete penetrance and variable expressivity, complicating the validation of ACTA2 variants pathogenicity by family segregation studies. In this study, we developed a yeast based assay to test putative TAAD-associated ACTA2 variants. We identified five new heterozygous ACTA2 missense variants in TAAD patients through next generation sequencing. We decided to test their pathogenicity in Saccharomyces cerevisiae, since yeast actin is very similar to human alpha-smooth muscle actin, and the residues at which the TAAD-associated variants occur in ACTA2 are well conserved. A wild type yeast strain was transformed with a vector expressing the different mutant alleles, to model the heterozygous condition of patients. Then, we evaluated yeast growth by spot test and cytoskeletal and mitochondrial morphology by fluorescence microscopy. We found that mutant yeast strains displayed only mild growth defects but a significant increase in the percentage of cells with abnormal mitochondrial distribution and abnormal organization of the actin cytoskeleton compared to controls. All variants appeared to interfere with the activity of wild type actin in yeast, suggesting a dominant-negative pathogenic mechanism. Our results demonstrate the utility of using the yeast actin model system to validate the pathogenicity of TAAD-associated ACTA2 variants.
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Affiliation(s)
- Cristina Calderan
- Clinical Genetics Unit, Department of Women's and Children's Health, University of Padua, and Istituto di Ricerca Pediatrica (IRP) Città della Speranza, Padua, Italy
- Department of Biomedical Sciences, University of Padua, Padua, Italy
| | - Ugo Sorrentino
- Clinical Genetics Unit, Department of Women's and Children's Health, University of Padua, and Istituto di Ricerca Pediatrica (IRP) Città della Speranza, Padua, Italy
| | - Luca Persano
- Pediatric Oncohematology Laboratory, Department of Women's and Children's Health, University of Padua, and Istituto di Ricerca Pediatrica (IRP) Città della Speranza, Padua, Italy
| | - Eva Trevisson
- Clinical Genetics Unit, Department of Women's and Children's Health, University of Padua, and Istituto di Ricerca Pediatrica (IRP) Città della Speranza, Padua, Italy
| | - Geppo Sartori
- Department of Biomedical Sciences, University of Padua, Padua, Italy
| | - Leonardo Salviati
- Clinical Genetics Unit, Department of Women's and Children's Health, University of Padua, and Istituto di Ricerca Pediatrica (IRP) Città della Speranza, Padua, Italy
- CIR-Myo Myology Center, University of Padua, Padua, Italy
| | - Maria Andrea Desbats
- Clinical Genetics Unit, Department of Women's and Children's Health, University of Padua, and Istituto di Ricerca Pediatrica (IRP) Città della Speranza, Padua, Italy.
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197
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Yazdan Parast F, Veeraragavan S, Gaikwad AS, Powar S, Prabhakar R, O'Bryan MK, Nosrati R. Viscous Loading Regulates the Flagellar Energetics of Human and Bull Sperm. SMALL METHODS 2024; 8:e2300928. [PMID: 38135876 DOI: 10.1002/smtd.202300928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 12/04/2023] [Indexed: 12/24/2023]
Abstract
The viscoelastic properties of the female reproductive tract influence sperm swimming behavior, but the exact role of these rheological changes in regulating sperm energetics remains unknown. Using high-speed dark-field microscopy, the flagellar dynamics of free-swimming sperm across a physiologically relevant range of viscosities is resolved. A transition from 3D to 2D slither swimming under an increased viscous loading is revealed, in the absence of any geometrical or chemical stimuli. This transition is species-specific, aligning with viscosity variations within each species' reproductive tract. Despite substantial drag increase, 2D slithering sperm maintain a steady swimming speed across a wide viscosity range (20-250 and 75-1000 mPa s for bull and human sperm) by dissipating over sixfold more energy into the fluid without elevating metabolic activity, potentially by altering the mechanisms of dynein motor activity. This energy-efficient motility mode is ideally suited for the viscous environment of the female reproductive tract.
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Affiliation(s)
- Farin Yazdan Parast
- Department of Mechanical and Aerospace Engineering, Monash University, Clayton, Victoria, 3800, Australia
| | - Shibani Veeraragavan
- Department of Mechanical and Aerospace Engineering, Monash University, Clayton, Victoria, 3800, Australia
| | - Avinash S Gaikwad
- Institute of Reproductive Genetics, University of Münster, 48149, Münster, Germany
- School of BioSciences and Bio21 Institute, Faculty of Science, University of Melbourne, Parkville, Victoria, 3010, Australia
| | - Sushant Powar
- Department of Mechanical and Aerospace Engineering, Monash University, Clayton, Victoria, 3800, Australia
| | - Ranganathan Prabhakar
- Department of Mechanical and Aerospace Engineering, Monash University, Clayton, Victoria, 3800, Australia
| | - Moira K O'Bryan
- School of BioSciences and Bio21 Institute, Faculty of Science, University of Melbourne, Parkville, Victoria, 3010, Australia
| | - Reza Nosrati
- Department of Mechanical and Aerospace Engineering, Monash University, Clayton, Victoria, 3800, Australia
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198
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Jeong S, Ha NC. Deciphering vimentin assembly: Bridging theoretical models and experimental approaches. Mol Cells 2024; 47:100080. [PMID: 38871297 PMCID: PMC11267000 DOI: 10.1016/j.mocell.2024.100080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Revised: 05/20/2024] [Accepted: 06/07/2024] [Indexed: 06/15/2024] Open
Abstract
The intricate assembly process of vimentin intermediate filaments (IFs), key components of the eukaryotic cytoskeleton, has yet to be elucidated. In this work, we investigated the transition from soluble tetrameric vimentin units to mature 11-nm tubular filaments, addressing a significant gap in the understanding of IF assembly. Through a combination of theoretical modeling and analysis of experimental data, we propose a novel assembly sequence, emphasizing the role of helical turns and gap filling by soluble tetramers. Our findings shed light on the unique structural dynamics of vimentin and suggest broader implications for the general principles of IF formation.
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Affiliation(s)
- Soyeon Jeong
- Department of Agricultural Biotechnology, Center for Food and Bioconversions, and Research Institute for Agriculture and Life Sciences, CALS, Seoul National University, Seoul 08826, Republic of Korea
| | - Nam-Chul Ha
- Department of Agricultural Biotechnology, Center for Food and Bioconversions, and Research Institute for Agriculture and Life Sciences, CALS, Seoul National University, Seoul 08826, Republic of Korea.
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199
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Ochiai KK, Hanawa D, Ogawa HA, Tanaka H, Uesaka K, Edzuka T, Shirae-Kurabayashi M, Toyoda A, Itoh T, Goshima G. Genome sequence and cell biological toolbox of the highly regenerative, coenocytic green feather alga Bryopsis. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2024; 119:1091-1111. [PMID: 38642374 DOI: 10.1111/tpj.16764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2023] [Revised: 02/10/2024] [Accepted: 03/27/2024] [Indexed: 04/22/2024]
Abstract
Green feather algae (Bryopsidales) undergo a unique life cycle in which a single cell repeatedly executes nuclear division without cytokinesis, resulting in the development of a thallus (>100 mm) with characteristic morphology called coenocyte. Bryopsis is a representative coenocytic alga that has exceptionally high regeneration ability: extruded cytoplasm aggregates rapidly in seawater, leading to the formation of protoplasts. However, the genetic basis of the unique cell biology of Bryopsis remains poorly understood. Here, we present a high-quality assembly and annotation of the nuclear genome of Bryopsis sp. (90.7 Mbp, 27 contigs, N50 = 6.7 Mbp, 14 034 protein-coding genes). Comparative genomic analyses indicate that the genes encoding BPL-1/Bryohealin, the aggregation-promoting lectin, are heavily duplicated in Bryopsis, whereas homologous genes are absent in other ulvophyceans, suggesting the basis of regeneration capability of Bryopsis. Bryopsis sp. possesses >30 kinesins but only a single myosin, which differs from other green algae that have multiple types of myosin genes. Consistent with this biased motor toolkit, we observed that the bidirectional motility of chloroplasts in the cytoplasm was dependent on microtubules but not actin in Bryopsis sp. Most genes required for cytokinesis in plants are present in Bryopsis, including those in the SNARE or kinesin superfamily. Nevertheless, a kinesin crucial for cytokinesis initiation in plants (NACK/Kinesin-7II) is hardly expressed in the coenocytic part of the thallus, possibly underlying the lack of cytokinesis in this portion. The present genome sequence lays the foundation for experimental biology in coenocytic macroalgae.
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Affiliation(s)
- Kanta K Ochiai
- Sugashima Marine Biological Laboratory, Graduate School of Science, Nagoya University, Toba, 517-0004, Japan
| | - Daiki Hanawa
- School of Life Science and Technology, Tokyo Institute of Technology, Meguro-ku, Tokyo, 152-8550, Japan
| | - Harumi A Ogawa
- Sugashima Marine Biological Laboratory, Graduate School of Science, Nagoya University, Toba, 517-0004, Japan
| | - Hiroyuki Tanaka
- School of Life Science and Technology, Tokyo Institute of Technology, Meguro-ku, Tokyo, 152-8550, Japan
| | - Kazuma Uesaka
- Centre for Gene Research, Nagoya University, Nagoya, 464-8602, Japan
| | - Tomoya Edzuka
- Sugashima Marine Biological Laboratory, Graduate School of Science, Nagoya University, Toba, 517-0004, Japan
| | - Maki Shirae-Kurabayashi
- Sugashima Marine Biological Laboratory, Graduate School of Science, Nagoya University, Toba, 517-0004, Japan
| | - Atsushi Toyoda
- Comparative Genomics Laboratory, National Institute of Genetics, Mishima, Shizuoka, 411-8540, Japan
- Advanced Genomics Center, National Institute of Genetics, Mishima, Shizuoka, 411-8540, Japan
| | - Takehiko Itoh
- School of Life Science and Technology, Tokyo Institute of Technology, Meguro-ku, Tokyo, 152-8550, Japan
| | - Gohta Goshima
- Sugashima Marine Biological Laboratory, Graduate School of Science, Nagoya University, Toba, 517-0004, Japan
- Department of Biological Science, Graduate School of Science, Nagoya University, Nagoya, 464-8602, Japan
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200
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Reynders A, Anissa Jhumka Z, Gaillard S, Mantilleri A, Malapert P, Magalon K, Etzerodt A, Salio C, Ugolini S, Castets F, Saurin AJ, Serino M, Hoeffel G, Moqrich A. Gut microbiota promotes pain chronicity in Myosin1A deficient male mice. Brain Behav Immun 2024; 119:750-766. [PMID: 38710336 DOI: 10.1016/j.bbi.2024.05.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 04/23/2024] [Accepted: 05/03/2024] [Indexed: 05/08/2024] Open
Abstract
Chronic pain is a heavily debilitating condition and a huge socio-economic burden, with no efficient treatment. Over the past decade, the gut microbiota has emerged as an important regulator of nervous system's health and disease states. Yet, its contribution to the pathogenesis of chronic somatic pain remains poorly documented. Here, we report that male but not female mice lacking Myosin1a (KO) raised under single genotype housing conditions (KO-SGH) are predisposed to develop chronic pain in response to a peripheral tissue injury. We further underscore the potential of MYO1A loss-of-function to alter the composition of the gut microbiota and uncover a functional connection between the vulnerability to chronic pain and the dysbiotic gut microbiota of KO-SGH males. As such, parental antibiotic treatment modifies gut microbiota composition and completely rescues the injury-induced pain chronicity in male KO-SGH offspring. Furthermore, in KO-SGH males, this dysbiosis is accompanied by a transcriptomic activation signature in the dorsal root ganglia (DRG) macrophage compartment, in response to tissue injury. We identify CD206+CD163- and CD206+CD163+ as the main subsets of DRG resident macrophages and show that both are long-lived and self-maintained and exhibit the capacity to monitor the vasculature. Consistently, in vivo depletion of DRG macrophages rescues KO-SGH males from injury-induced chronic pain underscoring a deleterious role for DRG macrophages in a Myo1a-loss-of function context. Together, our findings reveal gene-sex-microbiota interactions in determining the predisposition to injury-induced chronic pain and point-out DRG macrophages as potential effector cells.
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Affiliation(s)
- Ana Reynders
- Aix-Marseille-Université, CNRS, Institut de Biologie du Développement de Marseille, Marseille, France.
| | - Z Anissa Jhumka
- Aix-Marseille-Université, CNRS, Institut de Biologie du Développement de Marseille, Marseille, France
| | | | - Annabelle Mantilleri
- Aix-Marseille-Université, CNRS, Institut de Biologie du Développement de Marseille, Marseille, France
| | - Pascale Malapert
- Aix-Marseille-Université, CNRS, Institut de Biologie du Développement de Marseille, Marseille, France
| | - Karine Magalon
- Aix-Marseille-Université, CNRS, Institut de Biologie du Développement de Marseille, Marseille, France
| | - Anders Etzerodt
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
| | - Chiara Salio
- Department of Veterinary Sciences, University of Turin, Grugliasco, TO, Italy
| | - Sophie Ugolini
- Aix-Marseille-Université, CNRS, INSER, Centre d'Immunologie de Marseille-Luminy, Marseille, France
| | - Francis Castets
- Aix-Marseille-Université, CNRS, Institut de Biologie du Développement de Marseille, Marseille, France
| | - Andrew J Saurin
- Aix-Marseille-Université, CNRS, Institut de Biologie du Développement de Marseille, Marseille, France
| | - Matteo Serino
- Institut de Recherche en Santé Digestive, Université de Toulouse-Paul Sabatier, INSERM, INRAe, ENVT, UPS, Toulouse, France
| | - Guillaume Hoeffel
- Aix-Marseille-Université, CNRS, INSER, Centre d'Immunologie de Marseille-Luminy, Marseille, France
| | - Aziz Moqrich
- Aix-Marseille-Université, CNRS, Institut de Biologie du Développement de Marseille, Marseille, France.
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