Evidence of the presence of calcium/calmodulin-dependent protein kinase IV in human sperm and its involvement in motility regulation
The mechanisms involved in the regulation of mammalian sperm motility are not well understood. Calcium ions (Ca 2+ ) have been suggested to play a key role in the maintenance of motility; nevertheless, how Ca 2+ modulates this process has not yet been completely characterized. Ca 2+ can bind to calm...
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2005
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00219533_v118_n9_p2013_MarinBriggiler http://hdl.handle.net/20.500.12110/paper_00219533_v118_n9_p2013_MarinBriggiler |
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paper:paper_00219533_v118_n9_p2013_MarinBriggiler2023-06-08T14:43:41Z Evidence of the presence of calcium/calmodulin-dependent protein kinase IV in human sperm and its involvement in motility regulation Calcium Calmodulin CaM kinases Capacitation Human sperm Motility 1 [n,o bis(5 isoquinolinesulfonyl) n methyltyrosyl] 4 phenylpiperazine adenosine triphosphate calcium ion enzyme inhibitor n [2 [[n [3 (4 chlorophenyl) 2 propenyl] n methylamino]methyl]phenyl] n (2 hydroxyethyl) 4 methoxybenzenesulfonamide protein kinase protein kinase (calcium,calmodulin) protein kinase inhibitor protein tyrosine phosphatase acrosome reaction article cell viability complex formation controlled study culture medium enzyme activity enzyme inhibition human human cell immunology male mammal ovary follicle fluid priority journal protein binding protein localization protein phosphorylation regulatory mechanism spermatozoon capacitation spermatozoon motility spermatozoon tail Acrosome Reaction Adenosine Triphosphate Blotting, Western Ca(2+)-Calmodulin Dependent Protein Kinase Calcium Culture Media Dose-Response Relationship, Drug Electrophoresis Enzyme Inhibitors Humans Ions Male Microscopy, Fluorescence Sperm Capacitation Sperm Motility Spermatozoa Time Factors Mammalia The mechanisms involved in the regulation of mammalian sperm motility are not well understood. Calcium ions (Ca 2+ ) have been suggested to play a key role in the maintenance of motility; nevertheless, how Ca 2+ modulates this process has not yet been completely characterized. Ca 2+ can bind to calmodulin and this complex regulates the activity of multiple enzymes, including Ca 2+ /calmodulin-dependent protein kinases (CaM kinases). Results from this study confirmed that the presence of Ca 2+ , in the incubation medium is essential for maintaining human sperm motility. The involvement of CaM kinases in Ca 2+ regulation of human sperm motility was evaluated using specific inhibitors (KN62 and KN93) or their inactive analogues (KN04 and KN92 respectively). Sperm incubation in the presence of KN62 or KN93 led to a progressive decrease in the percentage of motile cells; in particular, incubation with KN62 also reduced sperm motility parameters. These inhibitors did not alter sperm viability, protein tyrosine phosphorylation or the follicular fluid-induced acrosome reaction; however, KN62 decreased the total amount of ATP in human sperm. Immunological studies showed that Ca 2+ /calmodulin-dependent protein kinase IV (CaMKIV) is present and localizes to the human sperm flagellum. Moreover, CaMKIV activity increases during capacitation and is inhibited in the presence of KN62. This report is the first to demonstrate the presence of CaMKIV in mammalian sperm and suggests the involvement of this kinase in the regulation of human sperm motility. 2005 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00219533_v118_n9_p2013_MarinBriggiler http://hdl.handle.net/20.500.12110/paper_00219533_v118_n9_p2013_MarinBriggiler |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Calcium Calmodulin CaM kinases Capacitation Human sperm Motility 1 [n,o bis(5 isoquinolinesulfonyl) n methyltyrosyl] 4 phenylpiperazine adenosine triphosphate calcium ion enzyme inhibitor n [2 [[n [3 (4 chlorophenyl) 2 propenyl] n methylamino]methyl]phenyl] n (2 hydroxyethyl) 4 methoxybenzenesulfonamide protein kinase protein kinase (calcium,calmodulin) protein kinase inhibitor protein tyrosine phosphatase acrosome reaction article cell viability complex formation controlled study culture medium enzyme activity enzyme inhibition human human cell immunology male mammal ovary follicle fluid priority journal protein binding protein localization protein phosphorylation regulatory mechanism spermatozoon capacitation spermatozoon motility spermatozoon tail Acrosome Reaction Adenosine Triphosphate Blotting, Western Ca(2+)-Calmodulin Dependent Protein Kinase Calcium Culture Media Dose-Response Relationship, Drug Electrophoresis Enzyme Inhibitors Humans Ions Male Microscopy, Fluorescence Sperm Capacitation Sperm Motility Spermatozoa Time Factors Mammalia |
| spellingShingle |
Calcium Calmodulin CaM kinases Capacitation Human sperm Motility 1 [n,o bis(5 isoquinolinesulfonyl) n methyltyrosyl] 4 phenylpiperazine adenosine triphosphate calcium ion enzyme inhibitor n [2 [[n [3 (4 chlorophenyl) 2 propenyl] n methylamino]methyl]phenyl] n (2 hydroxyethyl) 4 methoxybenzenesulfonamide protein kinase protein kinase (calcium,calmodulin) protein kinase inhibitor protein tyrosine phosphatase acrosome reaction article cell viability complex formation controlled study culture medium enzyme activity enzyme inhibition human human cell immunology male mammal ovary follicle fluid priority journal protein binding protein localization protein phosphorylation regulatory mechanism spermatozoon capacitation spermatozoon motility spermatozoon tail Acrosome Reaction Adenosine Triphosphate Blotting, Western Ca(2+)-Calmodulin Dependent Protein Kinase Calcium Culture Media Dose-Response Relationship, Drug Electrophoresis Enzyme Inhibitors Humans Ions Male Microscopy, Fluorescence Sperm Capacitation Sperm Motility Spermatozoa Time Factors Mammalia Evidence of the presence of calcium/calmodulin-dependent protein kinase IV in human sperm and its involvement in motility regulation |
| topic_facet |
Calcium Calmodulin CaM kinases Capacitation Human sperm Motility 1 [n,o bis(5 isoquinolinesulfonyl) n methyltyrosyl] 4 phenylpiperazine adenosine triphosphate calcium ion enzyme inhibitor n [2 [[n [3 (4 chlorophenyl) 2 propenyl] n methylamino]methyl]phenyl] n (2 hydroxyethyl) 4 methoxybenzenesulfonamide protein kinase protein kinase (calcium,calmodulin) protein kinase inhibitor protein tyrosine phosphatase acrosome reaction article cell viability complex formation controlled study culture medium enzyme activity enzyme inhibition human human cell immunology male mammal ovary follicle fluid priority journal protein binding protein localization protein phosphorylation regulatory mechanism spermatozoon capacitation spermatozoon motility spermatozoon tail Acrosome Reaction Adenosine Triphosphate Blotting, Western Ca(2+)-Calmodulin Dependent Protein Kinase Calcium Culture Media Dose-Response Relationship, Drug Electrophoresis Enzyme Inhibitors Humans Ions Male Microscopy, Fluorescence Sperm Capacitation Sperm Motility Spermatozoa Time Factors Mammalia |
| description |
The mechanisms involved in the regulation of mammalian sperm motility are not well understood. Calcium ions (Ca 2+ ) have been suggested to play a key role in the maintenance of motility; nevertheless, how Ca 2+ modulates this process has not yet been completely characterized. Ca 2+ can bind to calmodulin and this complex regulates the activity of multiple enzymes, including Ca 2+ /calmodulin-dependent protein kinases (CaM kinases). Results from this study confirmed that the presence of Ca 2+ , in the incubation medium is essential for maintaining human sperm motility. The involvement of CaM kinases in Ca 2+ regulation of human sperm motility was evaluated using specific inhibitors (KN62 and KN93) or their inactive analogues (KN04 and KN92 respectively). Sperm incubation in the presence of KN62 or KN93 led to a progressive decrease in the percentage of motile cells; in particular, incubation with KN62 also reduced sperm motility parameters. These inhibitors did not alter sperm viability, protein tyrosine phosphorylation or the follicular fluid-induced acrosome reaction; however, KN62 decreased the total amount of ATP in human sperm. Immunological studies showed that Ca 2+ /calmodulin-dependent protein kinase IV (CaMKIV) is present and localizes to the human sperm flagellum. Moreover, CaMKIV activity increases during capacitation and is inhibited in the presence of KN62. This report is the first to demonstrate the presence of CaMKIV in mammalian sperm and suggests the involvement of this kinase in the regulation of human sperm motility. |
| title |
Evidence of the presence of calcium/calmodulin-dependent protein kinase IV in human sperm and its involvement in motility regulation |
| title_short |
Evidence of the presence of calcium/calmodulin-dependent protein kinase IV in human sperm and its involvement in motility regulation |
| title_full |
Evidence of the presence of calcium/calmodulin-dependent protein kinase IV in human sperm and its involvement in motility regulation |
| title_fullStr |
Evidence of the presence of calcium/calmodulin-dependent protein kinase IV in human sperm and its involvement in motility regulation |
| title_full_unstemmed |
Evidence of the presence of calcium/calmodulin-dependent protein kinase IV in human sperm and its involvement in motility regulation |
| title_sort |
evidence of the presence of calcium/calmodulin-dependent protein kinase iv in human sperm and its involvement in motility regulation |
| publishDate |
2005 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00219533_v118_n9_p2013_MarinBriggiler http://hdl.handle.net/20.500.12110/paper_00219533_v118_n9_p2013_MarinBriggiler |
| _version_ |
1768542394287915008 |