Physiological and anatomical aspects of the reproduction of mice with reduced Syndecan-1 expression

Abstract Background Syndecan-1 is a heparan sulfate proteoglycan acting as a co-receptor for cytokines and growth factors mediating developmental, immunological and angiogenic processes. In human, the uteroplacental localization of Syndecan-1 and its reduced expression in pregnancy-associated pathol...

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Main Authors: Christina Gougoula, Alexandra P. Bielfeld, Sarah J. Pour, Jan-S. Krüssel, Martin Götte, W. Peter M. Benten, Dunja M. Baston-Büst
Format: Article
Language:English
Published: BMC 2019-03-01
Series:Reproductive Biology and Endocrinology
Subjects:
Online Access:http://link.springer.com/article/10.1186/s12958-019-0470-2
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author Christina Gougoula
Alexandra P. Bielfeld
Sarah J. Pour
Jan-S. Krüssel
Martin Götte
W. Peter M. Benten
Dunja M. Baston-Büst
author_facet Christina Gougoula
Alexandra P. Bielfeld
Sarah J. Pour
Jan-S. Krüssel
Martin Götte
W. Peter M. Benten
Dunja M. Baston-Büst
author_sort Christina Gougoula
collection DOAJ
description Abstract Background Syndecan-1 is a heparan sulfate proteoglycan acting as a co-receptor for cytokines and growth factors mediating developmental, immunological and angiogenic processes. In human, the uteroplacental localization of Syndecan-1 and its reduced expression in pregnancy-associated pathologies, such as the intrauterine growth restriction, suggests an influence of Syndecan-1 in embryo-maternal interactions. The aim of the present study was to identify the effect of a reduced expression of Syndecan-1 on the reproductive phenotype of mice and their progenies. Methods Reproductive characteristics have been investigated using animals with reduced Syndecan-1 and their wildtype controls after normal mating and after vice versa embryo transfers. Female mice were used to measure the estrus cycle length and the weight gain during pregnancy, as well as for histological examination of ovaries. Male mice were examined for the concentration, motility, viability and morphology of spermatozoa. Organs like heart, lung, liver, kidney, spleen, brain and ovaries or testes and epididymis of 6-month-old animals were isolated and weighed. Statistical analyses were performed using two-tailed students t-test with P < .05 and P < .02, chi square test (P < .05) and Fisher’s Exact Test (P < .05). A linear and a non-linear mixed-effects model were generated to analyze the weight gain of pregnant females and of the progenies. Results Focusing on the pregnancy outcome, the Syndecan-1 reduced females gave birth to larger litters. However, regarding the survival of the offspring, a higher percentage of pups with less Syndecan-1 died during the first postnatal days. Even though the ovaries and the testes of Syndecan-1 reduced mice showed no histological differences and the ovaries showed a similar number of primary and secondary follicles and corpora lutea, the spermatozoa of Syndecan-1 reduced males showed more tail and midpiece deficiencies. Concerning the postnatal and juvenile development the pups with reduced Syndecan-1 expression remained lighter and smaller regardless whether carried by mothers with reduced Syndecan-1 or wildtype foster mothers. With respect to anatomical differences kidneys of both genders as well as testes and epididymis of male mice with reduced syndecan-1 expression weighed less compared to controls. Conclusions These data reveal that the effects of Syndecan-1 reduction are rather genotype- than parental-dependent.
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spelling doaj.art-6a8e8cbae80c4a9eab41e7d59251c64f2022-12-21T19:10:14ZengBMCReproductive Biology and Endocrinology1477-78272019-03-0117111210.1186/s12958-019-0470-2Physiological and anatomical aspects of the reproduction of mice with reduced Syndecan-1 expressionChristina Gougoula0Alexandra P. Bielfeld1Sarah J. Pour2Jan-S. Krüssel3Martin Götte4W. Peter M. Benten5Dunja M. Baston-Büst6Central Unit for Animal Research and Animal Welfare Affairs (ZETT) of the Heinrich-Heine-University of DüsseldorfDepartment of OB/GYN and REI (UniKiD), University Hospital DüsseldorfDepartment of OB/GYN and REI (UniKiD), University Hospital DüsseldorfDepartment of OB/GYN and REI (UniKiD), University Hospital DüsseldorfDepartment of Gynecology and Obstetrics, Münster University HospitalCentral Unit for Animal Research and Animal Welfare Affairs (ZETT) of the Heinrich-Heine-University of DüsseldorfDepartment of OB/GYN and REI (UniKiD), University Hospital DüsseldorfAbstract Background Syndecan-1 is a heparan sulfate proteoglycan acting as a co-receptor for cytokines and growth factors mediating developmental, immunological and angiogenic processes. In human, the uteroplacental localization of Syndecan-1 and its reduced expression in pregnancy-associated pathologies, such as the intrauterine growth restriction, suggests an influence of Syndecan-1 in embryo-maternal interactions. The aim of the present study was to identify the effect of a reduced expression of Syndecan-1 on the reproductive phenotype of mice and their progenies. Methods Reproductive characteristics have been investigated using animals with reduced Syndecan-1 and their wildtype controls after normal mating and after vice versa embryo transfers. Female mice were used to measure the estrus cycle length and the weight gain during pregnancy, as well as for histological examination of ovaries. Male mice were examined for the concentration, motility, viability and morphology of spermatozoa. Organs like heart, lung, liver, kidney, spleen, brain and ovaries or testes and epididymis of 6-month-old animals were isolated and weighed. Statistical analyses were performed using two-tailed students t-test with P < .05 and P < .02, chi square test (P < .05) and Fisher’s Exact Test (P < .05). A linear and a non-linear mixed-effects model were generated to analyze the weight gain of pregnant females and of the progenies. Results Focusing on the pregnancy outcome, the Syndecan-1 reduced females gave birth to larger litters. However, regarding the survival of the offspring, a higher percentage of pups with less Syndecan-1 died during the first postnatal days. Even though the ovaries and the testes of Syndecan-1 reduced mice showed no histological differences and the ovaries showed a similar number of primary and secondary follicles and corpora lutea, the spermatozoa of Syndecan-1 reduced males showed more tail and midpiece deficiencies. Concerning the postnatal and juvenile development the pups with reduced Syndecan-1 expression remained lighter and smaller regardless whether carried by mothers with reduced Syndecan-1 or wildtype foster mothers. With respect to anatomical differences kidneys of both genders as well as testes and epididymis of male mice with reduced syndecan-1 expression weighed less compared to controls. Conclusions These data reveal that the effects of Syndecan-1 reduction are rather genotype- than parental-dependent.http://link.springer.com/article/10.1186/s12958-019-0470-2ProteoglycanEmbryo implantationSpermDevelopmentCycleSyndecans
spellingShingle Christina Gougoula
Alexandra P. Bielfeld
Sarah J. Pour
Jan-S. Krüssel
Martin Götte
W. Peter M. Benten
Dunja M. Baston-Büst
Physiological and anatomical aspects of the reproduction of mice with reduced Syndecan-1 expression
Reproductive Biology and Endocrinology
Proteoglycan
Embryo implantation
Sperm
Development
Cycle
Syndecans
title Physiological and anatomical aspects of the reproduction of mice with reduced Syndecan-1 expression
title_full Physiological and anatomical aspects of the reproduction of mice with reduced Syndecan-1 expression
title_fullStr Physiological and anatomical aspects of the reproduction of mice with reduced Syndecan-1 expression
title_full_unstemmed Physiological and anatomical aspects of the reproduction of mice with reduced Syndecan-1 expression
title_short Physiological and anatomical aspects of the reproduction of mice with reduced Syndecan-1 expression
title_sort physiological and anatomical aspects of the reproduction of mice with reduced syndecan 1 expression
topic Proteoglycan
Embryo implantation
Sperm
Development
Cycle
Syndecans
url http://link.springer.com/article/10.1186/s12958-019-0470-2
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