1
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Breitbart H, Grinshtein E. Mechanisms That Protect Mammalian Sperm from the Spontaneous Acrosome Reaction. Int J Mol Sci 2023; 24:17005. [PMID: 38069328 PMCID: PMC10707520 DOI: 10.3390/ijms242317005] [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: 10/19/2023] [Revised: 11/28/2023] [Accepted: 11/29/2023] [Indexed: 12/18/2023] Open
Abstract
To acquire the capacity to fertilize the oocyte, mammalian spermatozoa must undergo a series of biochemical reactions in the female reproductive tract, which are collectively called capacitation. The capacitated spermatozoa subsequently interact with the oocyte zona-pellucida and undergo the acrosome reaction, which enables the penetration of the oocyte and subsequent fertilization. However, the spontaneous acrosome reaction (sAR) can occur prematurely in the sperm before reaching the oocyte cumulus oophorus, thereby jeopardizing fertilization. One of the main processes in capacitation involves actin polymerization, and the resulting F-actin is subsequently dispersed prior to the acrosome reaction. Several biochemical reactions that occur during sperm capacitation, including actin polymerization, protect sperm from sAR. In the present review, we describe the protective mechanisms that regulate sperm capacitation and prevent sAR.
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Affiliation(s)
- Haim Breitbart
- The Faculty of Life Sciences, Bar-Ilan University, Ramat Gan 5290002, Israel
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2
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Becker LS, Al Smadi MA, Raeschle M, Rishik S, Abdul-Khaliq H, Meese E, Abu-Halima M. Proteomic Landscape of Human Sperm in Patients with Different Spermatogenic Impairments. Cells 2023; 12:cells12071017. [PMID: 37048090 PMCID: PMC10093380 DOI: 10.3390/cells12071017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 03/23/2023] [Accepted: 03/24/2023] [Indexed: 03/29/2023] Open
Abstract
Although the proteome of sperm has been characterized, there is still a lack of high-throughput studies on dysregulated proteins in sperm from subfertile men, with only a few studies on the sperm proteome in asthenozoospermic and oligoasthenozoospermic men. Using liquid chromatography–mass spectrometry (LC-MS/MS) along with bioinformatics analyses, we investigated the proteomic landscape of sperm collected from subfertile men (n = 22), i.e., asthenozoospermic men (n = 13), oligoasthenozoospermic men (n = 9) and normozoospermic controls (n = 31). We identified 4412 proteins in human sperm. Out of these, 1336 differentially abundant proteins were identified in 70% of the samples. In subfertile men, 32 proteins showed a lower abundance level and 34 showed a higher abundance level when compared with normozoospermic men. Compared to normozoospermic controls, 95 and 8 proteins showed a lower abundance level, and 86 and 1 proteins showed a higher abundance level in asthenozoospermic and oligoasthenozoospermic men, respectively. Sperm motility and count were negatively correlated with 13 and 35 and positively correlated with 37 and 20 differentially abundant proteins in asthenozoospermic and oligoasthenozoospermic men, respectively. The combination of the proteins APCS, APOE, and FLOT1 discriminates subfertile males from normozoospermic controls with an AUC value of 0.95. Combined APOE and FN1 proteins discriminate asthenozoospermic men form controls with an AUC of 1, and combined RUVBL1 and TFKC oligoasthenozoospermic men with an AUC of 0.93. Using a proteomic approach, we revealed the proteomic landscape of sperm collected from asthenozoospermic or oligoasthenozoospermic men. Identified abundance changes of several specific proteins are likely to impact sperm function leading to subfertility. The data also provide evidence for the usefulness of specific proteins or protein combinations to support future diagnosis of male subfertility.
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Affiliation(s)
- Lea Simone Becker
- Institute of Human Genetics, Saarland University, 66421 Homburg, Germany
- Correspondence: (L.S.B.); (M.A.-H.)
| | - Mohammad A. Al Smadi
- Reproductive Endocrinology and IVF Unit, King Hussein Medical Centre, Amman 11733, Jordan
| | - Markus Raeschle
- Department of Molecular Genetics, TU Kaiserslautern, 67653 Kaiserslautern, Germany
| | - Shusruto Rishik
- Chair for Clinical Bioinformatics, Saarland University, 66123 Saarbrücken, Germany
| | - Hashim Abdul-Khaliq
- Department of Pediatric Cardiology, Saarland University Medical Center, 66421 Homburg, Germany
| | - Eckart Meese
- Institute of Human Genetics, Saarland University, 66421 Homburg, Germany
| | - Masood Abu-Halima
- Institute of Human Genetics, Saarland University, 66421 Homburg, Germany
- Department of Pediatric Cardiology, Saarland University Medical Center, 66421 Homburg, Germany
- Correspondence: (L.S.B.); (M.A.-H.)
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3
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Mei Q, Li H, Liu Y, Wang X, Xiang W. Advances in the study of CDC42 in the female reproductive system. J Cell Mol Med 2021; 26:16-24. [PMID: 34859585 PMCID: PMC8742232 DOI: 10.1111/jcmm.17088] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 11/08/2021] [Accepted: 11/12/2021] [Indexed: 12/19/2022] Open
Abstract
CDC42 is a member of the Rho‐GTPase family and is involved in a variety of cellular functions including regulation of cell cycle progression, constitution of the actin backbone and membrane transport. In particular, CDC42 plays a key role in the establishment of polarity in female vertebrate oocytes, and essential to this major regulatory role is its local occupation of specific regions of the cell to ensure that the contractile ring is assembled at the right time and place to ensure proper gametogenesis. The multifactor controlled ‘inactivation‐activation’ process of CDC42 also allows it to play an important role in the multilevel signalling network, and the synergistic regulation of multiple genes ensures maximum precision during gametogenesis. The purpose of this paper is to review the role of CDC42 in the control of gametogenesis and to explore its related mechanisms, with the aim of further understanding the great research potential of CDC42 in female vertebrate germ cells and its future clinical translation.
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Affiliation(s)
- Qiaojuan Mei
- Institute of Reproductive Health and Center for Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Huiying Li
- Institute of Reproductive Health and Center for Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yu Liu
- Institute of Reproductive Health and Center for Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaofei Wang
- Institute of Reproductive Health and Center for Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wenpei Xiang
- Institute of Reproductive Health and Center for Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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4
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Luque GM, Xu X, Romarowski A, Gervasi MG, Orta G, De la Vega-Beltrán JL, Stival C, Gilio N, Dalotto-Moreno T, Krapf D, Visconti PE, Krapf D, Darszon A, Buffone MG. Cdc42 localized in the CatSper signaling complex regulates cAMP-dependent pathways in mouse sperm. FASEB J 2021; 35:e21723. [PMID: 34224609 DOI: 10.1096/fj.202002773rr] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 05/19/2021] [Accepted: 05/24/2021] [Indexed: 11/11/2022]
Abstract
Sperm acquire the ability to fertilize in a process called capacitation and undergo hyperactivation, a change in the motility pattern, which depends on Ca2+ transport by CatSper channels. CatSper is essential for fertilization and it is subjected to a complex regulation that is not fully understood. Here, we report that similar to CatSper, Cdc42 distribution in the principal piece is confined to four linear domains and this localization is disrupted in CatSper1-null sperm. Cdc42 inhibition impaired CatSper activity and other Ca2+ -dependent downstream events resulting in a severe compromise of the sperm fertilizing potential. We also demonstrate that Cdc42 is essential for CatSper function by modulating cAMP production by soluble adenylate cyclase (sAC), providing a new regulatory mechanism for the stimulation of CatSper by the cAMP-dependent pathway. These results reveal a broad mechanistic insight into the regulation of Ca2+ in mammalian sperm, a matter of critical importance in male infertility as well as in contraception.
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Affiliation(s)
- Guillermina M Luque
- Instituto de Biología y Medicina Experimental (IBYME-CONICET), Ciudad Autónoma de Buenos Aires, Argentina
| | - Xinran Xu
- Department of Electrical and Computer Engineering, Colorado State University, Fort Collins, CO, USA
| | - Ana Romarowski
- Instituto de Biología y Medicina Experimental (IBYME-CONICET), Ciudad Autónoma de Buenos Aires, Argentina.,Department of Veterinary and Animal Science, University of Massachusetts, Amherst, MA, USA
| | - María G Gervasi
- Department of Veterinary and Animal Science, University of Massachusetts, Amherst, MA, USA
| | - Gerardo Orta
- Instituto de Biotecnología, UNAM, Cuernavaca, México
| | | | - Cintia Stival
- Instituto de Biología Molecular y Celular de Rosario (CONICET-UNR), Rosario, Santa Fe, Argentina
| | - Nicolás Gilio
- Instituto de Biología y Medicina Experimental (IBYME-CONICET), Ciudad Autónoma de Buenos Aires, Argentina
| | - Tomás Dalotto-Moreno
- Instituto de Biología y Medicina Experimental (IBYME-CONICET), Ciudad Autónoma de Buenos Aires, Argentina
| | - Dario Krapf
- Instituto de Biología Molecular y Celular de Rosario (CONICET-UNR), Rosario, Santa Fe, Argentina
| | - Pablo E Visconti
- Department of Veterinary and Animal Science, University of Massachusetts, Amherst, MA, USA
| | - Diego Krapf
- Department of Electrical and Computer Engineering, Colorado State University, Fort Collins, CO, USA
| | | | - Mariano G Buffone
- Instituto de Biología y Medicina Experimental (IBYME-CONICET), Ciudad Autónoma de Buenos Aires, Argentina
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5
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RAC1 controls progressive movement and competitiveness of mammalian spermatozoa. PLoS Genet 2021; 17:e1009308. [PMID: 33539343 PMCID: PMC7861394 DOI: 10.1371/journal.pgen.1009308] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Accepted: 12/10/2020] [Indexed: 11/19/2022] Open
Abstract
Mammalian spermatozoa employ calcium (Ca2+) and cyclic adenosine monophosphate (cAMP) signaling in generating flagellar beat. However, how sperm direct their movement towards the egg cells has remained elusive. Here we show that the Rho small G protein RAC1 plays an important role in controlling progressive motility, in particular average path velocity and linearity. Upon RAC1 inhibition of wild type sperm with the drug NSC23766, progressive movement is impaired. Moreover, sperm from mice homozygous for the genetically variant t-haplotype region (tw5/tw32), which are sterile, show strongly enhanced RAC1 activity in comparison to wild type (+/+) controls, and quickly become immotile in vitro. Sperm from heterozygous (t/+) males, on the other hand, display intermediate RAC1 activity, impaired progressive motility and transmission ratio distortion (TRD) in favor of t-sperm. We show that t/+-derived sperm consist of two subpopulations, highly progressive and less progressive. The majority of highly progressive sperm carry the t-haplotype, while most less progressive sperm contain the wild type (+) chromosome. Dosage-controlled RAC1 inhibition in t/+ sperm by NSC23766 rescues progressive movement of (+)-sperm in vitro, directly demonstrating that impairment of progressive motility in the latter is caused by enhanced RAC1 activity. The combined data show that RAC1 plays a pivotal role in controlling progressive motility in sperm, and that inappropriate, enhanced or reduced RAC1 activity interferes with sperm progressive movement. Differential RAC1 activity within a sperm population impairs the competitiveness of sperm cells expressing suboptimal RAC1 activity and thus their fertilization success, as demonstrated by t/+-derived sperm. In conjunction with t-haplotype triggered TRD, we propose that Rho GTPase signaling is essential for directing sperm towards the egg cells.
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6
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Puyskens A, Stinn A, van der Vaart M, Kreuchwig A, Protze J, Pei G, Klemm M, Guhlich-Bornhof U, Hurwitz R, Krishnamoorthy G, Schaaf M, Krause G, Meijer AH, Kaufmann SHE, Moura-Alves P. Aryl Hydrocarbon Receptor Modulation by Tuberculosis Drugs Impairs Host Defense and Treatment Outcomes. Cell Host Microbe 2019; 27:238-248.e7. [PMID: 31901518 DOI: 10.1016/j.chom.2019.12.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Revised: 10/30/2019] [Accepted: 12/06/2019] [Indexed: 12/20/2022]
Abstract
Antimicrobial resistance in tuberculosis (TB) is a public health threat of global dimension, worsened by increasing drug resistance. Host-directed therapy (HDT) is an emerging concept currently explored as an adjunct therapeutic strategy for TB. One potential host target is the ligand-activated transcription factor aryl hydrocarbon receptor (AhR), which binds TB virulence factors and controls antibacterial responses. Here, we demonstrate that in the context of therapy, the AhR binds several TB drugs, including front line drugs rifampicin (RIF) and rifabutin (RFB), resulting in altered host defense and drug metabolism. AhR sensing of TB drugs modulates host defense mechanisms, notably impairs phagocytosis, and increases TB drug metabolism. Targeting AhR in vivo with a small-molecule inhibitor increases RFB-treatment efficacy. Thus, the AhR markedly impacts TB outcome by affecting both host defense and drug metabolism. As a corollary, we propose the AhR as a potential target for HDT in TB in adjunct to canonical chemotherapy.
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Affiliation(s)
- Andreas Puyskens
- Department of Immunology, Max Planck Institute for Infection Biology, Charitéplatz 1, Berlin 10117, Germany
| | - Anne Stinn
- Department of Immunology, Max Planck Institute for Infection Biology, Charitéplatz 1, Berlin 10117, Germany; Department for Structural Infection Biology, Center for Structural Systems Biology, Notkestraße 85, Hamburg 22607, Germany
| | - Michiel van der Vaart
- Institute of Biology, Leiden University, Sylviusweg 72, Leiden 2333, the Netherlands
| | - Annika Kreuchwig
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie, Robert-Rössle-Strasse 10, Berlin 13125, Germany
| | - Jonas Protze
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie, Robert-Rössle-Strasse 10, Berlin 13125, Germany
| | - Gang Pei
- Institute of Immunology, Friedrich Loeffler Institute, Südufer 10, Greifswald-Insel Riems 17493, Germany
| | - Marion Klemm
- Department of Immunology, Max Planck Institute for Infection Biology, Charitéplatz 1, Berlin 10117, Germany
| | - Ute Guhlich-Bornhof
- Department of Immunology, Max Planck Institute for Infection Biology, Charitéplatz 1, Berlin 10117, Germany
| | - Robert Hurwitz
- Protein Purification Core Facility, Max Planck Institute for Infection Biology, Charitéplatz 1, Berlin 10117, Germany
| | - Gopinath Krishnamoorthy
- Department of Immunology, Max Planck Institute for Infection Biology, Charitéplatz 1, Berlin 10117, Germany
| | - Marcel Schaaf
- Institute of Biology, Leiden University, Sylviusweg 72, Leiden 2333, the Netherlands
| | - Gerd Krause
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie, Robert-Rössle-Strasse 10, Berlin 13125, Germany
| | - Annemarie H Meijer
- Institute of Biology, Leiden University, Sylviusweg 72, Leiden 2333, the Netherlands
| | - Stefan H E Kaufmann
- Department of Immunology, Max Planck Institute for Infection Biology, Charitéplatz 1, Berlin 10117, Germany; Hagler Institute for Advanced Study at Texas A&M University, College Station, TX 77843, USA.
| | - Pedro Moura-Alves
- Department of Immunology, Max Planck Institute for Infection Biology, Charitéplatz 1, Berlin 10117, Germany; Ludwig Institute for Cancer Research, Nuffield Department of Clinical Medicine, University of Oxford, Oxford OX3 7DQ, UK.
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7
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Ramírez‐Ramírez D, Salgado‐Lucio ML, Roa‐Espitia AL, Fierro R, González‐Márquez H, Cordero‐Martínez J, Hernández‐González EO. Rac1 is necessary for capacitation and acrosome reaction in guinea pig spermatozoa. J Cell Biochem 2019; 121:2864-2876. [DOI: 10.1002/jcb.29521] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Accepted: 10/10/2019] [Indexed: 11/07/2022]
Affiliation(s)
- Danelia Ramírez‐Ramírez
- Doctorado en Ciencias Biológicas y de la SaludUniversidad Autónoma Metropolitana‐Iztapalapa Ciudad de México México
| | - Monica L. Salgado‐Lucio
- Departamento de Biología CelularCentro de Investigación y Estudios Avanzados del Instituto Politécnico Nacional México City México
| | - Ana L. Roa‐Espitia
- Departamento de Biología CelularCentro de Investigación y Estudios Avanzados del Instituto Politécnico Nacional México City México
| | - Reyna Fierro
- Departamento de Ciencias de la SaludUniversidad Autónoma Metropolitana‐Iztapalapa Ciudad de México México
| | - Humberto González‐Márquez
- Departamento de Ciencias de la SaludUniversidad Autónoma Metropolitana‐Iztapalapa Ciudad de México México
| | - Joaquín Cordero‐Martínez
- Departamento de Bioquímica, Escuela Nacional de Ciencias BiológicasInstituto Politécnico Nacional Ciudad de México México
| | - Enrique O. Hernández‐González
- Departamento de Biología CelularCentro de Investigación y Estudios Avanzados del Instituto Politécnico Nacional México City México
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8
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Cordero-Martínez J, Reyes-Miguel T, Rodríguez-Páez L, Garduño-Siciliano L, Maldonado-García D, Roa-Espitia AL, Hernández-González EO. TMEM16A inhibition impedes capacitation and acquisition of hyperactivated motility in guinea pig sperm. J Cell Biochem 2018; 119:5944-5959. [PMID: 29600587 DOI: 10.1002/jcb.26789] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Accepted: 02/12/2018] [Indexed: 11/12/2022]
Abstract
Ca2+ -activated Cl- channels (CaCCs) are anionic channels that regulate many important physiological functions associated with chloride and calcium flux in some somatic cells. The molecular identity of CaCCs was revealed to be TMEM16A and TMEM16B (also known as Anoctamin or ANO1 and ANO2, respectively) in all eukaryotes. A recent study suggests the presence of TMEM16A in human sperm and a relationship with the rhZP-induced acrosome reaction. However, to the best of our knowledge, little is known about the role of TMEM16A in other spermatic processes such as capacitation or motility. In this study, we evaluated the effects of two TMEM16A antagonists on capacitation, acrosome reaction, and motility in guinea pig sperm; these antagonists were T16Ainh-A01, belonging to a second generation of potent antagonists of TMEM16A, and niflumic acid (NFA), a well-known antagonist of TMEM16A (CaCCs). First of all, we confirmed that the absence of Cl- in the capacitation medium changes motility parameters, capacitation, and the progesterone-induced acrosome reaction. Using a specific antibody, TMEM16A was found as a protein band of ∼120 kDa, which localization was in the apical crest of the acrosome and the middle piece of the flagellum. Inhibition of TMEM16A by T16Ainh-A01 affected sperm physiology by reducing capacitation, blocking the progesterone-induced acrosome reaction under optimal capacitation conditions, inhibiting progressive motility, and the acquisition of hyperactivated motility, diminishing [Ca2+ ]i, and increasing [Cl- ]i. These changes in sperm kinematic parameters provide new evidence of the important role played by TMEM16A in the production of sperm capable of fertilizing oocytes.
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Affiliation(s)
- Joaquín Cordero-Martínez
- Departamento de Biología Celular, Centro de Investigación y Estudios Avanzados del Instituto Politécnico Nacional. Av. Instituto Politécnico Nacional, San Pedro Zacatenco, Del. Gustavo A. Madero, México City, Mexico.,Departamento de Bioquímica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional. Prolongación Manuel Carpio y Plan de Ayala s/n Col, Santo Tomás, Del. Miguel Hidalgo, México City, Mexico
| | - Tania Reyes-Miguel
- Departamento de Biología Celular, Centro de Investigación y Estudios Avanzados del Instituto Politécnico Nacional. Av. Instituto Politécnico Nacional, San Pedro Zacatenco, Del. Gustavo A. Madero, México City, Mexico
| | - Lorena Rodríguez-Páez
- Departamento de Bioquímica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional. Prolongación Manuel Carpio y Plan de Ayala s/n Col, Santo Tomás, Del. Miguel Hidalgo, México City, Mexico
| | - Leticia Garduño-Siciliano
- Laboratorio de Toxicología de Productos Naturales. Departamento de Farmacia, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional. Prol. Av. Wilfrido Massieu s/n, esq. Manuel L. Stampa, Col. Unidad Profesional Adolfo López Mateos, Del. Gustavo A. Madero, México City, Mexico
| | - Deneb Maldonado-García
- Departamento de Biología Celular, Centro de Investigación y Estudios Avanzados del Instituto Politécnico Nacional. Av. Instituto Politécnico Nacional, San Pedro Zacatenco, Del. Gustavo A. Madero, México City, Mexico
| | - Ana L Roa-Espitia
- Departamento de Biología Celular, Centro de Investigación y Estudios Avanzados del Instituto Politécnico Nacional. Av. Instituto Politécnico Nacional, San Pedro Zacatenco, Del. Gustavo A. Madero, México City, Mexico
| | - Enrique O Hernández-González
- Departamento de Biología Celular, Centro de Investigación y Estudios Avanzados del Instituto Politécnico Nacional. Av. Instituto Politécnico Nacional, San Pedro Zacatenco, Del. Gustavo A. Madero, México City, Mexico
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9
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Xu T, Xie HQ, Li Y, Xia Y, Chen Y, Xu L, Wang L, Zhao B. CDC42 expression is altered by dioxin exposure and mediated by multilevel regulations via AhR in human neuroblastoma cells. Sci Rep 2017; 7:10103. [PMID: 28860601 PMCID: PMC5578991 DOI: 10.1038/s41598-017-10311-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Accepted: 08/08/2017] [Indexed: 02/05/2023] Open
Abstract
Emerging evidence has shown that dioxin causes dysregulation of microRNAs (miRs) in a variety of tissues or cells. However, little is known about dioxin effects on neuronal miRs expression. In the present study, 277 differentially expressed miRs were identified by miRs microarray analysis in 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD, at 10−10 M) treated SK-N-SH neuroblastoma cells. Among them, 53 miRs exhibited changes of more than 0.4-fold. Consistent with the microarray data, we verified the induction effect of TCDD on hsa-miR-608 expression, which is a primate-specific miR associated with brain functions. Bioinformatics analysis showed involvement of hsa-miR-608 in cytoskeleton organization, in which one of the hsa-miR-608 target genes, Cell Division Cycle 42 (CDC42), might play a role. We also confirmed induction of CDC42 expression by TCDD in SK-N-SH cells. TCDD induced the expression of CDC42 mRNA in hsa-miR-608 inhibitor transfected cells more obviously than in control cells, suggesting involvement of both transcriptional and post-transcriptional mechanisms in the TCDD-induced CDC42 regulation. Furthermore, CH223191, an antagonist of the aryl hydrocarbon receptor (AhR), counteracted TCDD-induced hsa-miR-608 and CDC42 expression. These results indicated that AhR not only mediates transcriptional induction of CDC42, but also hsa-miR-608-induced post-transcriptional regulation of CDC42 in dioxin treated neuroblastoma cells.
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Affiliation(s)
- Tuan Xu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China.,University of Chinese Academy of Sciences, Beijing, 100085, China
| | - Heidi Q Xie
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China.,University of Chinese Academy of Sciences, Beijing, 100085, China
| | - Yunping Li
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China.,University of Chinese Academy of Sciences, Beijing, 100085, China
| | - Yingjie Xia
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China.,University of Chinese Academy of Sciences, Beijing, 100085, China
| | - Yangsheng Chen
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China.,University of Chinese Academy of Sciences, Beijing, 100085, China
| | - Li Xu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China.,University of Chinese Academy of Sciences, Beijing, 100085, China
| | - Lingyun Wang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China.,University of Chinese Academy of Sciences, Beijing, 100085, China
| | - Bin Zhao
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China. .,University of Chinese Academy of Sciences, Beijing, 100085, China.
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10
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Calpain inhibition prevents flotillin re-ordering and Src family activation during capacitation. Cell Tissue Res 2017; 369:395-412. [DOI: 10.1007/s00441-017-2591-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Accepted: 02/17/2017] [Indexed: 01/08/2023]
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