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Li P, Wei K, He X, Zhang L, Liu Z, Wei J, Chen X, Wei H, Chen T. Vaginal Probiotic Lactobacillus crispatus Seems to Inhibit Sperm Activity and Subsequently Reduces Pregnancies in Rat. Front Cell Dev Biol 2021; 9:705690. [PMID: 34485291 PMCID: PMC8414900 DOI: 10.3389/fcell.2021.705690] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Accepted: 07/13/2021] [Indexed: 01/12/2023] Open
Abstract
Background The vaginal microbiota is associated with the health of the female reproductive system and the offspring. Lactobacillus crispatus belongs to one of the most important vaginal probiotics, while its role in the agglutination and immobilization of human sperm, fertility, and offspring health is unclear. Methods Adherence assays, sperm motility assays, and Ca2+-detecting assays were used to analyze the adherence properties and sperm motility of L. crispatus Lcr-MH175, attenuated Salmonella typhimurium VNP20009, engineered S. typhimurium VNP20009 DNase I, and Escherichia coli O157:H7 in vitro. The rat reproductive model was further developed to study the role of L. crispatus on reproduction and offspring health, using high-throughput sequencing, real-time PCR, and molecular biology techniques. Results Our results indicated that L. crispatus, VNP20009, VNP20009 DNase I, and E. coli O157:H7 significantly inhibited the sperm motility in vitro via adversely affecting the sperm intracellular Ca2+ concentration and showed a high adhesion to sperms. The in vivo results indicated that L. crispatus and other tested bacteria greatly reduced the pregnancy rates, but L. crispatus had a positive effect on maternal health and offspring development. Moreover, the transplantation of L. crispatus could sustain a normal bacterial composition of the vaginal microbiota in healthy rats and markedly reduced the expression of uterine inflammatory factors (toll-like receptor-4/nuclear factor kappa-B, tumor necrosis factor-α, production of interleukin-1β, etc.) and apoptosis factors (Fas Ligand, Bcl-2-associated X protein/B cell lymphoma-2, etc.) compared with the other tested strains. Conclusion Our study demonstrated that the vaginal probiotic L. crispatus greatly affected the sperm activity and could also reduce pregnancies through its adhesion property, which might account for some unexplained infertility. Therefore, more caution should be paid when using L. crispatus as a vaginal viable preparation in women of child-bearing age, especially for women whose partners have abnormal sperms.
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Affiliation(s)
- Ping Li
- School of Life Sciences, Institute of Translational Medicine, Nanchang University, Nanchang, China
| | - Kehong Wei
- School of Life Sciences, Institute of Translational Medicine, Nanchang University, Nanchang, China
| | - Xia He
- Department of Obstetrics and Gynecology, The Ninth Hospital of Nanchang, Nanchang, China
| | - Lu Zhang
- School of Life Sciences, Institute of Translational Medicine, Nanchang University, Nanchang, China
| | - Zhaoxia Liu
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Jing Wei
- School of Life Sciences, Institute of Translational Medicine, Nanchang University, Nanchang, China
| | - Xiaomei Chen
- School of Life Sciences, Institute of Translational Medicine, Nanchang University, Nanchang, China
| | - Hong Wei
- Institute of Precision Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Tingtao Chen
- School of Life Sciences, Institute of Translational Medicine, Nanchang University, Nanchang, China
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Brown JL, Sones JL, Angulo CN, Abbott K, Miller AD, Boehm U, Roberson MS. Conditional loss of ERK1 and ERK2 results in abnormal placentation and delayed parturition in the mouse. Sci Rep 2019; 9:9641. [PMID: 31270345 PMCID: PMC6610138 DOI: 10.1038/s41598-019-45997-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Accepted: 06/21/2019] [Indexed: 11/11/2022] Open
Abstract
Extracellular-signal-regulated kinases (ERK) 1 and 2 regulate many aspects of the hypothalamic-pituitary-gonadal axis. We sought to understand the role of ERK1/2 signaling in cells expressing a Cre allele regulated by the endogenous GnRHR promoter (GRIC-ERKdko). Adult female GRIC-ERKdko mice were hypogonadotropic and anovulatory. Gonadotropin administration and mating led to pregnancy in one-third of the ERKdko females. Litters from ERKdko females and pup weights were reduced coincident with delayed parturition and 100% neonatal mortality. Based on this, we examined Cre expression in implantation sites as a potential mechanism. GnRHR mRNA levels at e10.5 and e12.5 were comparable to pituitary levels from adult female mice at proestrus and GnRHR mRNA in decidua was enriched compared to whole implantation site. In vivo studies confirmed recombination in decidua, and GRIC-ERKdko placentas showed reduced ERK2 expression. Histopathology revealed abnormalities in placental architecture in the GRIC-ERKdko animals. Regions of apoptosis at the decidual/uterine interface at e18.5 were observed in control animals but apoptotic tone in these regions was reduced in ERKdko animals. These studies support a potential model of ERK-dependent signaling within the implantation site leading to loss of placental architecture and mis-regulation of apoptotic events at parturition occurring coincident with prolonged gestation and neonatal mortality.
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Affiliation(s)
- Jessica L Brown
- Department Biomedical Science, College of Veterinary Medicine, Cornell University, Ithaca, NY, USA
| | - Jennifer L Sones
- Department Biomedical Science, College of Veterinary Medicine, Cornell University, Ithaca, NY, USA
- Department Veterinary Clinical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA, USA
| | - Cynthia N Angulo
- Department Biomedical Science, College of Veterinary Medicine, Cornell University, Ithaca, NY, USA
| | - Keelin Abbott
- Department Biomedical Science, College of Veterinary Medicine, Cornell University, Ithaca, NY, USA
| | - Andrew D Miller
- Department Biomedical Science, College of Veterinary Medicine, Cornell University, Ithaca, NY, USA
| | - Ulrich Boehm
- Experimental Pharmacology, Center for Molecular Signaling (PZMS), Saarland University School of Medicine, Homburg, Germany
| | - Mark S Roberson
- Department Biomedical Science, College of Veterinary Medicine, Cornell University, Ithaca, NY, USA.
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HIRAYAMA H, USHIZAWA K, TAKAHASHI T, SAWAI K, MORIYASU S, KAGEYAMA S, MIURA R, MATSUI M, FUKUDA S, NAITO A, FUJII T, MINAMIHASHI A. Differences in Apoptotic Status in the Bovine Placentome between Spontaneous and Induced Parturition. J Reprod Dev 2012; 58:585-91. [DOI: 10.1262/jrd.2012-043] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Hiroki HIRAYAMA
- Animal Biotechnology Group, Animal Research Center, Hokkaido Research Organization, Hokkaido 081-0038, Japan
- Animal Biotechnology Group, Animal Research Center, Hokkaido Research Organization, Hokkaido 081-0038, Japan
| | - Koichi USHIZAWA
- Animal Physiology Research Unit, Division of Animal Science, National Institute of Agrobiological Sciences, Ibaraki 305-0901, Japan
- Animal Physiology Research Unit, Division of Animal Science, National Institute of Agrobiological Sciences, Ibaraki 305-0901, Japan
| | - Toru TAKAHASHI
- Animal Physiology Research Unit, Division of Animal Science, National Institute of Agrobiological Sciences, Ibaraki 305-0901, Japan
- Animal Physiology Research Unit, Division of Animal Science, National Institute of Agrobiological Sciences, Ibaraki 305-0901, Japan
| | - Ken SAWAI
- Department of Animal Science, Faculty of Agriculture, Iwate University, Iwate 020-8550, Japan
- Department of Animal Science, Faculty of Agriculture, Iwate University, Iwate 020-8550, Japan
| | - Satoru MORIYASU
- Animal Biotechnology Group, Animal Research Center, Hokkaido Research Organization, Hokkaido 081-0038, Japan
- Animal Biotechnology Group, Animal Research Center, Hokkaido Research Organization, Hokkaido 081-0038, Japan
| | - Soichi KAGEYAMA
- Animal Biotechnology Group, Animal Research Center, Hokkaido Research Organization, Hokkaido 081-0038, Japan
- Animal Biotechnology Group, Animal Research Center, Hokkaido Research Organization, Hokkaido 081-0038, Japan
| | - Ryotaro MIURA
- Department of Clinically Veterinary Sciences, Obihiro University of Agriculture and Veterinary Medicine, Hokkaido 080-8555, Japan
- Department of Clinically Veterinary Sciences, Obihiro University of Agriculture and Veterinary Medicine, Hokkaido 080-8555, Japan
| | - Motozumi MATSUI
- Department of Clinically Veterinary Sciences, Obihiro University of Agriculture and Veterinary Medicine, Hokkaido 080-8555, Japan
- Department of Clinically Veterinary Sciences, Obihiro University of Agriculture and Veterinary Medicine, Hokkaido 080-8555, Japan
| | - Shigeo FUKUDA
- Animal Biotechnology Group, Animal Research Center, Hokkaido Research Organization, Hokkaido 081-0038, Japan
- Animal Biotechnology Group, Animal Research Center, Hokkaido Research Organization, Hokkaido 081-0038, Japan
| | - Akira NAITO
- Animal Biotechnology Group, Animal Research Center, Hokkaido Research Organization, Hokkaido 081-0038, Japan
- Animal Biotechnology Group, Animal Research Center, Hokkaido Research Organization, Hokkaido 081-0038, Japan
| | - Takashi FUJII
- Animal Biotechnology Group, Animal Research Center, Hokkaido Research Organization, Hokkaido 081-0038, Japan
- Animal Biotechnology Group, Animal Research Center, Hokkaido Research Organization, Hokkaido 081-0038, Japan
| | - Akira MINAMIHASHI
- Animal Biotechnology Group, Animal Research Center, Hokkaido Research Organization, Hokkaido 081-0038, Japan
- Animal Biotechnology Group, Animal Research Center, Hokkaido Research Organization, Hokkaido 081-0038, Japan
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Mu J, Kanzaki T, Si X, Tomimatsu T, Fukuda H, Shioji M, Murata Y, Sugimoto Y, Ichikawa A. Apoptosis and related proteins in placenta of intrauterine fetal death in prostaglandin f receptor-deficient mice. Biol Reprod 2003; 68:1968-74. [PMID: 12606450 DOI: 10.1095/biolreprod.102.008029] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
The present study investigated whether the increase of apoptosis in the placenta is associated with intrauterine fetal death in prostaglandin F receptor-deficient mice. Apoptosis was demonstrated within placental and decidual tissue by the TUNEL method. The majority of apoptosis was found in syncytiotrophoblast tissues. Enhanced TUNEL-positive staining in the syncytiotrophoblast layer was scattered in the placental tissues in clusters of apoptotic cells in the death group. Marked TUNEL-positive cells were identified in decidua of both groups. The rate of apoptosis in the placenta and decidua in the death group was higher than that in the survival group (P < 0.05). Immunohistochemical analysis showed that the level of active caspase-3 protein expression in the placenta in the death group was much higher than that in the survival group. The level of Bcl-2 protein expression in the placenta in the death group was much lower than that in the survival group. Western blot analysis demonstrated that increased expression of the active form of caspase-3 was detected in the placenta and decidua in the death group compared with that in the survival group. In contrast, a decrease in the expression of Bcl-2 was detected in the placenta and decidua in the death group compared with that in the survival group. Enhanced expression of Bax:Bcl-2 ratio was detected in placenta and decidua in the death group compared with that in the survival group. Thus, significantly increased apoptosis in the mouse placenta and decidua might be involved in the pathophysiologic mechanism of intrauterine fetal death.
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Affiliation(s)
- Junwu Mu
- Department of Obstetrics and Gynecology, Osaka University, Faculty of Medicine, Osaka, Japan.
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