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1. Towards complete male individualization with rapidly mutating Y-chromosomal STRs

Author

Ballantyne, KN, Ralf, A, Aboukhalid, R, Achakzai, NM, Anjos, MJ, Ayub, Q, Balažic, J, Ballantyne, J, Ballard, DJ, Berger, B, Bobillo, C, Bouabdellah, M, Burri, H, Butler, J, Capal, T, Caratti, S, Carracedo, A, Cartault, F, Carvalho, EF, Cheng, B, Coble, MD, Comas, D, Corach, D, D'Amato, ME, Davison, S, de Carvalho, EF, de Knijff, Peter, de Ungria, M, Decorte, Ronny, Dobosz, T, Dupuy, BM, Elmrghni, S, Gliwinski, M, Gomes, SC, Grol, L, Haas, C, Hanson, E, Henke, J, Hill, CR, Holmlund, G, Honda, K, Immel, U, Inoue, S, Jobling, MA, Kaddura, M, Kim, JS, Kim, SH, Kim, W, King, TE, Klausriegler, E, Kling, D, Kovacevic, LL, Kovatsi, L, Krajewski, P, Kravchenko, S, Larmuseau, Maarten, Lee, EY, Lee, SH, Lessig, R, Livshits, LA, Marjanovic, D, Minarik, M, Mizuno, N, Moreira, H, Morling, N, Mukherjee, M, Nagaraju, J, Neuhuber, F, Nie, S, Nilasitsataporn, P, Nishi, T, Oh, HH, Olofsson, J, Onofri, V, Palo, JU, Pamjav, H, Parson, W, Payet, C, Petlach, M, Phillips, C, Ploski, R, Prasad, SPR, Primorac, D, Purnnomo, GA, Purps, J, Rangel, H, Rebala, K, Rerkamnuaychoke, B, Rey, D, Robino, C, Rodríguez, F, Roewer, L, Rosa, A, Sajantila, A, Sala, A, Salvador, J, Sanz, P, Schmitt, C, Sharma, AK, Silva, DA, Shin, KJ, Sijen, T, Sirker, M, Siváková, D, Skaro, V, Solano-Matamoros, C, Souto, L, Stenzl, V, Sudoyo, H, Syndercombe-Court, D, Tagliabracci, A, Taylor, D, Tillmar, A, Tsybovsky, IS, Tyler-Smith, C, van der Gaag, K, Vanek, D, Völgyi, A, Ward, D, Willemse, P, Winkler, C, Yap, EPH, Yong, RYY, Zupanic Pajnic, I, and Kayser, M

Subjects
haplotypes, paternal lineage, RM YSTRs, Y-STRs, forensic, Y-chromosome
Abstract

Relevant for various areas of human genetics, Y-chromosomal short tandem repeats (Y-STRs) are commonly used for testing close paternal relationships among individuals and populations, and for male lineage identification. However, even the widely used 17-loci Yfiler set cannot resolve individuals and populations completely. Here, 52 centers generated quality-controlled data of 13 rapidly mutating (RM) Y-STRs in 14,644 related and unrelated males from 111 worldwide populations. Strikingly, >99% of the 12,272 unrelated males were completely individualized. Haplotype diversity was extremely high (global: 0.9999985, regional: 0.99836–0.9999988). Haplotype sharing between populations was almost absent except for six (0.05%) of the 12,156 haplotypes. Haplotype sharing within populations was generally rare (0.8% nonunique haplotypes), significantly lower in urban (0.9%) than rural (2.1%) and highest in endogamous groups (14.3%). Analysis of molecular variance revealed 99.98% of variation within populations, 0.018% among populations within groups, and 0.002% among groups. Of the 2,372 newly and 156 previously typed male relative pairs, 29% were differentiated including 27% of the 2,378 father–son pairs. Relative to Yfiler, haplotype diversity was increased in 86% of the populations tested and overall male relative differentiation was raised by 23.5%. Our study demonstrates the value of RMY-STRs in identifying and separating unrelated and related males and provides a reference database. ispartof: Human Mutation vol:35 issue:8 pages:1021-1032 status: published

Published
2014

2. Toward Male Individualization with Rapidly Mutating Y-Chromosomal Short Tandem Repeats

Author

Ballantyne, K.N., Ralf, A., Aboukhalid, R., Achakzai, N.M., Anjos, M.J., Ayub, Q., Balazic, J., Ballantyne, J., Ballard, D.J., Berger, B., Bobillo, C., Bouabdellah, M., Burri, H., Capal, T., Caratti, S., Cardenas, J., Cartault, F., Carvalho, E.F., Carvalho, M., Cheng, B.W., Coble, M.D., Comas, D., Corach, D., D'Amato, M.E., Davison, S., Knijff, P. de, Ungria, M.C.A. de, Decorte, R., Dobosz, T., Dupuy, B.M., Elmrghni, S., Gliwinski, M., Gomes, S.C., Grol, L., Haas, C., Hanson, E., Henke, J., Henke, L., Herrera-Rodriguez, F., Hill, C.R., Holmlund, G., Honda, K., Immel, U.D., Inokuchi, S., Jobling, M.A., Kaddura, M., Kim, J.S., Kim, S.H., Kim, W., King, T.E., Klausriegler, E., Kling, D., Kovacevic, L., Kovatsi, L., Krajewski, P., Kravchenko, S., Larmuseau, M.H.D., Lee, E.Y., Lessig, R., Livshits, L.A., Marjanovic, D., Minarik, M., Mizuno, N., Moreira, H., Morling, N., Mukherjee, M., Munier, P., Nagaraju, J., Neuhuber, F., Nie, S.J., Nilasitsataporn, P., Nishi, T., Oh, H.H., Olofsson, J., Onofri, V., Palo, J.U., Pamjav, H., Parson, W., Petlach, M., Phillips, C., Ploski, R., Prasad, S.P.R., Primorac, D., Purnomo, G.A., Purps, J., Rangel-Villalobos, H., Rebala, K., Rerkamnuaychoke, B., Gonzalez, D.R., Robino, C., Roewer, L., Rosa, A., Sajantila, A., Sala, A., Salvador, J.M., Sanz, P., Schmitt, C., Sharma, A.K., Silva, D.A., Shin, K.J., Sijen, T., Sirker, M., Sivakova, D., Skaro, V., Solano-Matamoros, C., Souto, L., Stenzl, V., Sudoyo, H., Syndercombe-Court, D., Tagliabracci, A., Taylor, D., Tillmar, A., Tsybovsky, I.S., Tyler-Smith, C., Gaag, K.J. van der, Vanek, D., Volgyi, A., Ward, D., Willemse, P., Yap, E.P.H., Yong, R.Y.Y., Pajnic, I.Z., Kayser, M., Hjelt Institute (-2014), Forensic Medicine, PaleOmics Laboratory, and Genetic Identification

Subjects
Male, Rural Population, haplotypes, Y-chromosome, Y-STRs, RM Y-STRs, paternal lineage, forensic, Asia, Forensic Science, Urban Population, Cell- och molekylärbiologi, education, Paternity, Gene Frequency, Humans, Alleles, Chromosomes, Human, Y, 1184 Genetics, developmental biology, physiology, Genetic Variation, DNA Fingerprinting, RM Y-STRs, Y-STRs, Y-chromosome, forensic, haplotypes, paternal lineage, Pedigree, Europe, Genetics, Population, Africa, 3111 Biomedicine, Americas, Cell and Molecular Biology, Microsatellite Repeats, Rättsmedicin
Abstract

Relevant for various areas of human genetics, Y-chromosomal short tandem repeats (Y-STRs) are commonly used for testing close paternal relationships among individuals and populations, and for male lineage identification. However, even the widely used 17-loci Yfiler set cannot resolve individuals and populations completely. Here, 52 centers generated quality-controlled data of 13 rapidly mutating (RM) Y-STRs in 14,644 related and unrelated males from 111 worldwide populations. Strikingly, >99% of the 12,272 unrelated males were completely individualized. Haplotype diversity was extremely high (global: 0.9999985, regional: 0.99836-0.9999988). Haplotype sharing between populations was almost absent except for six (0.05%) of the 12,156 haplotypes. Haplotype sharing within populations was generally rare (0.8% nonunique haplotypes), significantly lower in urban (0.9%) than rural (2.1%) and highest in endogamous groups (14.3%). Analysis of molecular variance revealed 99.98% of variation within populations, 0.018% among populations within groups, and 0.002% among groups. Of the 2,372 newly and 156 previously typed male relative pairs, 29% were differentiated including 27% of the 2,378 father-son pairs. Relative to Yfiler, haplotype diversity was increased in 86% of the populations tested and overall male relative differentiation was raised by 23.5%. Our study demonstrates the value of RMY-STRs in identifying and separating unrelated and related males and provides a reference database. Published 2014 Wiley Periodicals, Inc.**

Published
2014

3. Toward Male Individualization with Rapidly Mutating Y-Chromosomal Short Tandem Repeats

Author

Ballantyne, K. (Kaye), Ralf, A. (Arwin), Aboukhalid, R. (Rachid), Achakzai, N.M. (Niaz), Anjos, T. (Tania), Ayub, Q. (Qasim), Balažic, J. (Jože), Ballantyne, J. (Jack), Ballard, D.J. (David), Berger, B. (Burkhard), Bobillo, C. (Cecilia), Bouabdellah, M. (Mehdi), Burri, H. (Helen), Capal, T. (Tomas), Caratti, S. (Stefano), Cárdenas, J. (Jorge), Cartault, F. (François), Carvalho, E.F. (Elizeu), Carvalho, M. (Margarete) de, Cheng, B. (Baowen), Coble, M.D. (Michael), Comas, D. (David), Corach, D. (Daniel), D'Amato, M. (Mauro), Davison, S. (Sean), Knijff, P. (Peter) de, Ungria, M.C.A. (Maria Corazon) de, Decorte, R. (Ronny), Dobosz, T. (Tadeusz), Dupuy, B.M. (Berit), Elmrghni, S. (Samir), Gliwiński, M. (Mateusz), Gomes, S.C. (Sara), Grol, L. (Laurens), Haas, C. (Cordula), Hanson, E. (Erin), Henke, J. (Jürgen), Henke, L. (Lotte), Herrera-Rodríguez, F. (Fabiola), Hill, C.R. (Carolyn), Holmlund, G. (Gunilla), Honda, K. (Katsuya), Immel, U.-D. (Uta-Dorothee), Inokuchi, S. (Shota), Jobling, R., Kaddura, M. (Mahmoud), Kim, J.S. (Jong), Kim, S.H. (Soon), Kim, W. (Wook), King, T.E. (Turi), Klausriegler, E. (Eva), Kling, D. (Daniel), Kovačević, L. (Lejla), Kovatsi, L. (Leda), Krajewski, P. (Paweł), Kravchenko, S. (Sergey), Larmuseau, M.H.D. (Maarten), Lee, E.Y. (Eun Young), Lessig, R. (Rüdiger), Livshits, L.A. (Ludmila), Marjanović, D. (Damir), Minarik, M. (Marek), Mizuno, N. (Natsuko), Moreira, H. (Helena), Morling, N. (Niels), Mukherjee, M. (Meeta), Munier, P. (Patrick), Nagaraju, J. (Javaregowda), Neuhuber, F. (Franz), Nie, S. (Shengjie), Nilasitsataporn, P. (Premlaphat), Nishi, T. (Takeki), Oh, H.H. (Hye), Olofsson, S. (Sylvia), Onofri, V. (Valerio), Palo, J. (Jukka), Pamjav, H. (Horolma), Parson, W. (Walther), Petlach, M. (Michal), Phillips, C. (Christopher), Ploski, R. (Rafal), Prasad, S.P.R. (Samayamantri P.), Primorac, D. (Dragan), Purnomo, G.A. (Gludhug), Purps, J. (Josephine), Rangel-Villalobos, H. (Hector), Reogonekbała, K. (Krzysztof), Rerkamnuaychoke, B. (Budsaba), Gonzalez, D.R. (Danel Rey), Robino, C. (Carlo), Roewer, L. (Lutz), Rosa, A. (Anna) de, Sajantila, A. (Antti), Sala, A. (Andrea), Salvador, J.M. (Jazelyn), Sanz, P. (Paula), Schmitt, C. (Christian), Sharma, A.K. (Anisha K.), Silva, D.A. (Dayse), Shin, K.-J. (Kyoung-Jin), Sijen, T. (Titia), Sirker, M. (Miriam), Siváková, D. (Daniela), Škaro, V. (Vedrana), Solano-Matamoros, C. (Carlos), Souto, L. (L.), Stenzl, V. (Vlastimil), Sudoyo, H. (Herawati), Syndercombe-Court, D. (Denise), Tagliabracci, A. (Adriano), Taylor, D. (Duncan), Tillmar, A. (Andreas), Tsybovsky, I.S. (Iosif), Tyler-Smith, C. (Chris), Gaag, K. (Kristiaan) van der, Vanek, D. (Daniel), Völgyi, A. (Antónia), Ward, D. (Denise), Willemse, P. (Patricia), Yap, E.P.H. (Eric), Yong, Z-Y. (Ze-Yie), Pajnič, I.Z. (Irena Zupanič), Kayser, M.H. (Manfred), Ballantyne, K. (Kaye), Ralf, A. (Arwin), Aboukhalid, R. (Rachid), Achakzai, N.M. (Niaz), Anjos, T. (Tania), Ayub, Q. (Qasim), Balažic, J. (Jože), Ballantyne, J. (Jack), Ballard, D.J. (David), Berger, B. (Burkhard), Bobillo, C. (Cecilia), Bouabdellah, M. (Mehdi), Burri, H. (Helen), Capal, T. (Tomas), Caratti, S. (Stefano), Cárdenas, J. (Jorge), Cartault, F. (François), Carvalho, E.F. (Elizeu), Carvalho, M. (Margarete) de, Cheng, B. (Baowen), Coble, M.D. (Michael), Comas, D. (David), Corach, D. (Daniel), D'Amato, M. (Mauro), Davison, S. (Sean), Knijff, P. (Peter) de, Ungria, M.C.A. (Maria Corazon) de, Decorte, R. (Ronny), Dobosz, T. (Tadeusz), Dupuy, B.M. (Berit), Elmrghni, S. (Samir), Gliwiński, M. (Mateusz), Gomes, S.C. (Sara), Grol, L. (Laurens), Haas, C. (Cordula), Hanson, E. (Erin), Henke, J. (Jürgen), Henke, L. (Lotte), Herrera-Rodríguez, F. (Fabiola), Hill, C.R. (Carolyn), Holmlund, G. (Gunilla), Honda, K. (Katsuya), Immel, U.-D. (Uta-Dorothee), Inokuchi, S. (Shota), Jobling, R., Kaddura, M. (Mahmoud), Kim, J.S. (Jong), Kim, S.H. (Soon), Kim, W. (Wook), King, T.E. (Turi), Klausriegler, E. (Eva), Kling, D. (Daniel), Kovačević, L. (Lejla), Kovatsi, L. (Leda), Krajewski, P. (Paweł), Kravchenko, S. (Sergey), Larmuseau, M.H.D. (Maarten), Lee, E.Y. (Eun Young), Lessig, R. (Rüdiger), Livshits, L.A. (Ludmila), Marjanović, D. (Damir), Minarik, M. (Marek), Mizuno, N. (Natsuko), Moreira, H. (Helena), Morling, N. (Niels), Mukherjee, M. (Meeta), Munier, P. (Patrick), Nagaraju, J. (Javaregowda), Neuhuber, F. (Franz), Nie, S. (Shengjie), Nilasitsataporn, P. (Premlaphat), Nishi, T. (Takeki), Oh, H.H. (Hye), Olofsson, S. (Sylvia), Onofri, V. (Valerio), Palo, J. (Jukka), Pamjav, H. (Horolma), Parson, W. (Walther), Petlach, M. (Michal), Phillips, C. (Christopher), Ploski, R. (Rafal), Prasad, S.P.R. (Samayamantri P.), Primorac, D. (Dragan), Purnomo, G.A. (Gludhug), Purps, J. (Josephine), Rangel-Villalobos, H. (Hector), Reogonekbała, K. (Krzysztof), Rerkamnuaychoke, B. (Budsaba), Gonzalez, D.R. (Danel Rey), Robino, C. (Carlo), Roewer, L. (Lutz), Rosa, A. (Anna) de, Sajantila, A. (Antti), Sala, A. (Andrea), Salvador, J.M. (Jazelyn), Sanz, P. (Paula), Schmitt, C. (Christian), Sharma, A.K. (Anisha K.), Silva, D.A. (Dayse), Shin, K.-J. (Kyoung-Jin), Sijen, T. (Titia), Sirker, M. (Miriam), Siváková, D. (Daniela), Škaro, V. (Vedrana), Solano-Matamoros, C. (Carlos), Souto, L. (L.), Stenzl, V. (Vlastimil), Sudoyo, H. (Herawati), Syndercombe-Court, D. (Denise), Tagliabracci, A. (Adriano), Taylor, D. (Duncan), Tillmar, A. (Andreas), Tsybovsky, I.S. (Iosif), Tyler-Smith, C. (Chris), Gaag, K. (Kristiaan) van der, Vanek, D. (Daniel), Völgyi, A. (Antónia), Ward, D. (Denise), Willemse, P. (Patricia), Yap, E.P.H. (Eric), Yong, Z-Y. (Ze-Yie), Pajnič, I.Z. (Irena Zupanič), and Kayser, M.H. (Manfred)

Abstract

Relevant for various areas of human genetics, Y-chromosomal short tandem repeats (Y-STRs) are commonly used for testing close paternal relationships among individuals and populations, and for male lineage identification. However, even the widely used 17-loci Yfiler set cannot resolve individuals and populations completely. Here, 52 centers generated quality-controlled data of 13 rapidly mutating (RM) Y-STRs in 14,644 related and unrelated males from 111 worldwide populations. Strikingly, >99% of the 12,272 unrelated males were completely individualized. Haplotype diversity was extremely high (global: 0.9999985, regional: 0.99836-0.9999988). Haplotype sharing between populations was almost absent except for six (0.05%) of the 12,156 haplotypes. Haplotype sharing within populations was generally rare (0.8% nonunique haplotypes), significantly lower in urban (0.9%) than rural (2.1%) and highest in endogamous groups (14.3%). Analysis

Published
2014
Full Text
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5. Toward male individualization with rapidly mutating y-chromosomal short tandem repeats.

Author

Ballantyne KN, Ralf A, Aboukhalid R, Achakzai NM, Anjos MJ, Ayub Q, Balažic J, Ballantyne J, Ballard DJ, Berger B, Bobillo C, Bouabdellah M, Burri H, Capal T, Caratti S, Cárdenas J, Cartault F, Carvalho EF, Carvalho M, Cheng B, Coble MD, Comas D, Corach D, D'Amato ME, Davison S, de Knijff P, De Ungria MC, Decorte R, Dobosz T, Dupuy BM, Elmrghni S, Gliwiński M, Gomes SC, Grol L, Haas C, Hanson E, Henke J, Henke L, Herrera-Rodríguez F, Hill CR, Holmlund G, Honda K, Immel UD, Inokuchi S, Jobling MA, Kaddura M, Kim JS, Kim SH, Kim W, King TE, Klausriegler E, Kling D, Kovačević L, Kovatsi L, Krajewski P, Kravchenko S, Larmuseau MH, Lee EY, Lessig R, Livshits LA, Marjanović D, Minarik M, Mizuno N, Moreira H, Morling N, Mukherjee M, Munier P, Nagaraju J, Neuhuber F, Nie S, Nilasitsataporn P, Nishi T, Oh HH, Olofsson J, Onofri V, Palo JU, Pamjav H, Parson W, Petlach M, Phillips C, Ploski R, Prasad SP, Primorac D, Purnomo GA, Purps J, Rangel-Villalobos H, Rębała K, Rerkamnuaychoke B, Gonzalez DR, Robino C, Roewer L, Rosa A, Sajantila A, Sala A, Salvador JM, Sanz P, Schmitt C, Sharma AK, Silva DA, Shin KJ, Sijen T, Sirker M, Siváková D, Skaro V, Solano-Matamoros C, Souto L, Stenzl V, Sudoyo H, Syndercombe-Court D, Tagliabracci A, Taylor D, Tillmar A, Tsybovsky IS, Tyler-Smith C, van der Gaag KJ, Vanek D, Völgyi A, Ward D, Willemse P, Yap EP, Yong RY, Pajnič IZ, and Kayser M

Subjects
Africa, Alleles, Americas, Asia, DNA Fingerprinting statistics & numerical data, Europe, Gene Frequency, Genetic Variation, Humans, Male, Paternity, Pedigree, Rural Population, Urban Population, Chromosomes, Human, Y chemistry, DNA Fingerprinting methods, Genetics, Population, Haplotypes, Microsatellite Repeats
Abstract

Relevant for various areas of human genetics, Y-chromosomal short tandem repeats (Y-STRs) are commonly used for testing close paternal relationships among individuals and populations, and for male lineage identification. However, even the widely used 17-loci Yfiler set cannot resolve individuals and populations completely. Here, 52 centers generated quality-controlled data of 13 rapidly mutating (RM) Y-STRs in 14,644 related and unrelated males from 111 worldwide populations. Strikingly, >99% of the 12,272 unrelated males were completely individualized. Haplotype diversity was extremely high (global: 0.9999985, regional: 0.99836-0.9999988). Haplotype sharing between populations was almost absent except for six (0.05%) of the 12,156 haplotypes. Haplotype sharing within populations was generally rare (0.8% nonunique haplotypes), significantly lower in urban (0.9%) than rural (2.1%) and highest in endogamous groups (14.3%). Analysis of molecular variance revealed 99.98% of variation within populations, 0.018% among populations within groups, and 0.002% among groups. Of the 2,372 newly and 156 previously typed male relative pairs, 29% were differentiated including 27% of the 2,378 father-son pairs. Relative to Yfiler, haplotype diversity was increased in 86% of the populations tested and overall male relative differentiation was raised by 23.5%. Our study demonstrates the value of RM Y-STRs in identifying and separating unrelated and related males and provides a reference database., (© 2014 The Authors. **Human Mutation published by Wiley Periodicals, Inc.)

Published
2014
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6. Effect of epidermal growth factor-like peptides on pig cumulus cell expansion, oocyte maturation, and acquisition of developmental competence in vitro: comparison with gonadotropins.

Author

Procházka R, Petlach M, Nagyová E, and Nemcová L

Subjects
Animals, Cell Differentiation drug effects, Cell Differentiation genetics, Cells, Cultured, Cumulus Cells metabolism, Cumulus Cells physiology, Embryo Culture Techniques, Embryonic Development drug effects, Embryonic Development genetics, Epidermal Growth Factor chemistry, Epidermal Growth Factor pharmacology, Female, Follicle Stimulating Hormone pharmacology, Gene Expression Profiling, Oocytes metabolism, Oocytes physiology, Oogenesis drug effects, Oogenesis genetics, Parthenogenesis drug effects, Parthenogenesis genetics, Parthenogenesis physiology, Peptide Fragments chemistry, Cell Proliferation drug effects, Cumulus Cells drug effects, Gonadotropins pharmacology, Oocytes drug effects, Peptide Fragments pharmacology, Swine genetics, Swine metabolism, Swine physiology
Abstract

The aim of this work was to assess the FSH-stimulated expression of epidermal growth factor (EGF)-like peptides in cultured cumulus-oocyte complexes (COCs) and to find out the effect of the peptides on cumulus expansion, oocyte maturation, and acquisition of developmental competence in vitro. FSH promptly stimulated expression of amphiregulin (AREG) and epiregulin (EREG), but not betacellulin (BTC) in the cultured COCs. Expression of AREG and EREG reached maximum at 2 or 4 h after FSH addition respectively. FSH also significantly stimulated expression of expansion-related genes (PTGS2, TNFAIP6, and HAS2) in the COCs at 4 and 8 h of culture, with a significant decrease at 20 h of culture. Both AREG and EREG also increased expression of the expansion-related genes; however, the relative abundance of mRNA for each gene was much lower than in the FSH-stimulated COCs. In contrast to FSH, AREG and EREG neither stimulated expression of CYP11A1 in the COCs nor an increase in progesterone production by cumulus cells. AREG and EREG stimulated maturation of oocytes and expansion of cumulus cells, although the percentage of oocytes that had reached metaphase II was significantly lower when compared to FSH-induced maturation. Nevertheless, significantly more oocytes stimulated with AREG and/or EREG developed to blastocyst stage after parthenogenetic activation when compared to oocytes stimulated with FSH alone or combinations of FSH/LH or pregnant mares serum gonadotrophin/human chorionic gonadotrophin. We conclude that EGF-like peptides do not mimic all effects of FSH on the cultured COCs; nevertheless, they yield oocytes with superior developmental competence.

Published
2011
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7. Molecular mechanisms of insulin-like growth factor 1 promoted synthesis and retention of hyaluronic acid in porcine oocyte-cumulus complexes.

Author

Nemcová L, Nagyová E, Petlach M, Tománek M, and Procházka R

Subjects
Animals, Cell Proliferation drug effects, Cells, Cultured, Cyclic AMP biosynthesis, Cyclic AMP-Dependent Protein Kinases metabolism, Female, Follicle Stimulating Hormone pharmacology, Glucuronosyltransferase genetics, Glucuronosyltransferase metabolism, Granulosa Cells cytology, Granulosa Cells metabolism, Hyaluronan Synthases, Mitogen-Activated Protein Kinase 3 metabolism, Oocytes metabolism, Phosphatidylinositol 3-Kinases metabolism, Phosphorylation drug effects, Proto-Oncogene Proteins c-akt metabolism, Swine, Granulosa Cells drug effects, Hyaluronic Acid biosynthesis, Hyaluronic Acid metabolism, Insulin-Like Growth Factor I pharmacology, Oocytes drug effects
Abstract

The purpose of the present study was to elucidate signaling pathways by which insulin like-growth factor 1 (IGF1) promotes FSH-stimulated synthesis and retention of hyaluronic acid (HA) in pig oocyte-cumulus complexes (OCCs) cultured in serum-free medium. We found that IGF1 had no effects on FSH-stimulated production of cAMP and activation of protein kinase A in the OCCs. Immunoblotting with phospho-specific antibodies showed that FSH moderately phosphorylated v-akt murine thymoma viral oncogene homolog (AKT) and mitogen-activated kinase 3 and 1 (MAPK3/1) in cumulus cells. The exposure of OCCs to both FSH and IGF1 resulted in a significant (P < 0.05) increase in AKT and MAPK3/1 phosphorylation. An inhibitor of phosphoinositide-3-kinase (PIK3), LY 294002, significantly (P < 0.05) reduced the IGF1-enhanced phosphorylation of AKT, and inhibitors of AKT (SH6) and MAPK3/1 (U0126) significantly (P < 0.05) decreased the synthesis and retention of HA stimulated by concomitant exposure of OCCs to both FSH and IGF1. The IGF1-promoted synthesis of HA was not accompanied by an increase in the relative abundance of hyaluronan synthase 2 (HAS2) mRNA in the cumulus cells. We conclude that IGF1 promotes the FSH-stimulated synthesis and retention of HA in pig OCCs by PIK3/AKT- and MAPK3/1-dependent mechanisms.

Published
2007
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