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I B, López-Jiménez P, Mena I, Viera A, Page J, González-Martínez J, Maestre C, Malumbres M, Suja JA, Gómez R. Haspin participates in AURKB recruitment to centromeres and contributes to chromosome congression in male mouse meiosis. J Cell Sci 2022; 135:275954. [PMID: 35694956 DOI: 10.1242/jcs.259546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 06/06/2022] [Indexed: 11/20/2022] Open
Abstract
Chromosome segregation requires that centromeres properly attach to spindle microtubules. This essential step regulates the accuracy of cell division and therefore must be precisely regulated. One of the main centromeric regulatory signaling pathways is the Haspin-H3T3ph-chromosomal passenger complex (CPC) cascade, which is responsible for the recruitment of the CPC to the centromeres. In mitosis, Haspin kinase phosphorylates histone H3 at threonine 3 (H3T3ph), an essential epigenetic mark that recruits the CPC, whose catalytic component is Aurora B kinase. However, the centromeric Haspin-H3T3ph-CPC pathway remains largely uncharacterized in mammalian male meiosis. We have analyzed Haspin functions by either its chemical inhibition in cultured spermatocytes using LDN-192960, or the ablation of Haspin gene in Haspin-/-. Our studies suggest that Haspin kinase activity is required for proper chromosome congression during both meiotic divisions and for the recruitment of Aurora B and kinesin MCAK to meiotic centromeres. However, the absence of H3T3ph histone mark does not alter Borealin and SGO2 centromeric localization. These results add new and relevant information regarding the regulation of the Haspin-H3T3ph-CPC pathway and centromere function during meiosis.
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Affiliation(s)
- Berenguer I
- Cell Biology Unit, Department of Biology, Universidad Autónoma de Madrid (UAM), 28049 Madrid, Spain
| | - P López-Jiménez
- Cell Biology Unit, Department of Biology, Universidad Autónoma de Madrid (UAM), 28049 Madrid, Spain
| | - I Mena
- Cell Biology Unit, Department of Biology, Universidad Autónoma de Madrid (UAM), 28049 Madrid, Spain
| | - A Viera
- Cell Biology Unit, Department of Biology, Universidad Autónoma de Madrid (UAM), 28049 Madrid, Spain
| | - J Page
- Cell Biology Unit, Department of Biology, Universidad Autónoma de Madrid (UAM), 28049 Madrid, Spain
| | - J González-Martínez
- Cell Division and Cancer group, Spanish National Cancer Research Centre (CNIO), 29029 Madrid, Spain
| | - C Maestre
- Cell Division and Cancer group, Spanish National Cancer Research Centre (CNIO), 29029 Madrid, Spain
| | - M Malumbres
- Cell Division and Cancer group, Spanish National Cancer Research Centre (CNIO), 29029 Madrid, Spain
| | - J A Suja
- Cell Biology Unit, Department of Biology, Universidad Autónoma de Madrid (UAM), 28049 Madrid, Spain
| | - R Gómez
- Cell Biology Unit, Department of Biology, Universidad Autónoma de Madrid (UAM), 28049 Madrid, Spain
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Sariol CA, González-Martínez J, Arana T, Gascot S, Suárez E, Maldonado E, Gerald MS, Rodríguez M, Kraiselburd EN. Differential distribution of antibodies to different viruses in young animals in the free-ranging rhesus macaques of Cayo Santiago. J Med Primatol 2007; 35:369-75. [PMID: 17214665 DOI: 10.1111/j.1600-0684.2006.00174.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND The breeding colony of free-ranging rhesus macaques was established in 1938 in Cayo Santiago (CS) with animals collected in northern India. The seroprevalence to cercopithecine herpesvirus type 1 (B virus) and simian retroviruses has been studied previously. RESULTS This is the first report on the seropositivity to different viruses using samples collected shortly after removing animals (n = 245) from CS. All samples were negative for measles, simian immunodeficiency virus and simian type D retroviruses. The overall prevalence of antibodies was around 50% for simian T-lymphotropic virus I (STLV-I). For B virus, the prevalence was 38%. CONCLUSIONS Data obtained showed marked differences in the antibody distribution to B virus and STLV-I within the free-ranging colony of rhesus macaques. Implication of these data for the Specific Pathogen Free program at the Caribbean Primate Research Center are also discussed.
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Affiliation(s)
- C A Sariol
- Caribbean Primate Research Center, Unit of Comparative Medicine, University of Puerto Rico-Medical Sciences Campus, San Juan, PR, USA.
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Abstract
This paper presents the results of a study on the introduced, free-ranging patas monkey population of Southwestern Puerto Rico (SWPR). It describes information on the population size, social group composition, diet, daily ranging patterns, and patas home range during a 3 year period. The patas monkey population in the study area consisted of approximately 120 individuals in four heterosexual groups and several all-male bands. Within their home ranges (26.8 km2), the population density was 4.47 individuals/km2. Home range size among the population's four heterosexual groups varied from 3.72 km2 to 15.39 km2, and minimum daily distance traveled ranged from 0.8-2.0 km. In general, the social structure and mating system of this population parallels what has been described for African populations. However, habitat use, ranging behavior, and the quality of intergroup interactions suggests that patas of this population exhibit territorial behavior.
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Affiliation(s)
- J González-Martínez
- Caribbean Primate Research Center, University of Puerto Rico-Medical Sciences Campus, Sabana Seca.
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