1
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Cutoiu A, Boda D. An overview regarding the relationship between Mollicutes, infertility and antibiotic resistance (Review). Biomed Rep 2024; 21:119. [PMID: 38938741 PMCID: PMC11209857 DOI: 10.3892/br.2024.1807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Accepted: 06/05/2024] [Indexed: 06/29/2024] Open
Abstract
Throughout the past decades, physicians have increasingly conferred regarding the role of Mollicutes in infertility in both male and female patients. Although Ureaplasma and Mycoplasma do not represent a leading cause of infertility, whether dermatovenerologists, gynecologists and urologists should not disregard them when screening patients with infertility problems is discussed in the present review. While these infections are completely asymptomatic in ~80% of cases, they do lead to both chronic inflammation of the genital tract and reproductive disorders. Different Mollicute strains and/or serovars, genomic traits and proteomic markers have been examined in order to understand not only the exact mechanism by which they cause infertility, but also their relationship with the worldwide spreading resistance to antibiotics. The current review provided an overview of the latest studies regarding the new findings on the relationship between Mollicutes, infertility and antibiotic resistance. Awareness should be raised among clinicians to screen sexually active adults wishing to conceive who have failed to achieve a pregnancy; in addition, an antibiogram should be performed and treatment should be carried out according to the guidelines.
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Affiliation(s)
- Ana Cutoiu
- Department of Dermatology, ‘Carol Davila’ University of Medicine and Pharmacy, 050474 Bucharest, Romania
| | - Daniel Boda
- Department of Dermatology, ‘Carol Davila’ University of Medicine and Pharmacy, 050474 Bucharest, Romania
- Department of Dermatology, ‘Ponderas’ Academic Hospital, 014142 Bucharest, Romania
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2
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Liu H, Song X, Huang M, Zhan H, Wang S, Zhu S, Pang T, Zhang X, Zeng Q. Ureaplasma urealyticum induces polymorphonuclear elastase to change semen properties and reduce sperm motility: a prospective observational study. J Int Med Res 2022; 50:3000605221106410. [PMID: 35701892 PMCID: PMC9208062 DOI: 10.1177/03000605221106410] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Objective To elucidate the mechanism underlying how Ureaplasma urealyticum (UU) affects sperm quality and identify a therapeutic target. Methods In this prospective observational study, the differences in and relationships among semen volume, pH, viscosity, liquefaction time, sperm concentration, sperm motility [progressive motility (PR)], and seminal polymorphonuclear (PMN) elastase were analyzed in 198 normal semen samples (control group) and 198 UU-infected semen samples (observation group). The UU-infected samples were treated and the above parameters were compared between the two groups. Results The semen volume, viscosity, liquefaction time, and seminal PMN elastase were significantly higher in the observation than control group, but the pH and PR were significantly lower. In the observation group, the pH and PR were significantly higher after than before treatment, whereas the semen volume, PMN elastase, viscosity, and liquefaction time were lower. UU was closely related to semen volume, pH, viscosity, liquefaction time, sperm motility (PR), and PMN elastase. PMN elastase had significant negative effects on semen pH and sperm motility (PR) but positive effects on viscosity and liquefaction time. Conclusion UU might induce PMN elastase to increase the liquefaction time and viscosity of semen, eventually decreasing PR. PMN elastase might be a therapeutic target of UU.
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Affiliation(s)
- Huang Liu
- The First School of Clinical Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu Province, China.,Department of Andrology, NHC Key Laboratory of Male Reproduction and Genetics, Guangdong Provincial Reproductive Science Institute (Guangdong Provincial Fertility Hospital), Human Sperm Bank of Guangdong Province, Guangzhou, Guangdong Province, China
| | - Xiaoyan Song
- Department of Clinical Laboratory, NHC Key Laboratory of Male Reproduction and Genetics, Guangdong Provincial Reproductive Science Institute (Guangdong Provincial Fertility Hospital), Human Sperm Bank of Guangdong Province, Guangzhou, Guangdong Province, China
| | - Mulan Huang
- Department of Clinical Laboratory, NHC Key Laboratory of Male Reproduction and Genetics, Guangdong Provincial Reproductive Science Institute (Guangdong Provincial Fertility Hospital), Human Sperm Bank of Guangdong Province, Guangzhou, Guangdong Province, China
| | - Huashen Zhan
- Reproductive Center, Sanming Integrated Medicine Hospital, Sanming, Fujian Province, China
| | - Shiyang Wang
- Reproductive Center, The Second People's Hospital of Yunnan Province, Kunming, Yunnan Province, China
| | - Shenghui Zhu
- Department of Andrology, NHC Key Laboratory of Male Reproduction and Genetics, Guangdong Provincial Reproductive Science Institute (Guangdong Provincial Fertility Hospital), Human Sperm Bank of Guangdong Province, Guangzhou, Guangdong Province, China
| | - Tao Pang
- Department of Andrology, NHC Key Laboratory of Male Reproduction and Genetics, Guangdong Provincial Reproductive Science Institute (Guangdong Provincial Fertility Hospital), Human Sperm Bank of Guangdong Province, Guangzhou, Guangdong Province, China
| | - Xinzong Zhang
- Department of Andrology, NHC Key Laboratory of Male Reproduction and Genetics, Guangdong Provincial Reproductive Science Institute (Guangdong Provincial Fertility Hospital), Human Sperm Bank of Guangdong Province, Guangzhou, Guangdong Province, China
| | - Qingqi Zeng
- The First School of Clinical Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu Province, China.,Department of Integrated Chinese and Western Medicine, Jiangsu Health Vocational College, Nanjing, Jiangsu Province, China
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3
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Bukharin OV, Kuzmin MD, Perunova NB, Nikiforov IA, Chainikova IN, Ivanova EV. Diagnostic cytokine marker of male infertility - interleukin 4. Klin Lab Diagn 2022; 67:151-157. [PMID: 35320630 DOI: 10.51620/0869-2084-2022-67-3-151-157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Analysis of the study is to assess the diagnostic significance of cytokines in the sperm plasma of men of reproductive age (20 - 45 years) of two groups: of patients with chronic bacterial prostatitis, not complicated by infertility and with loss of fertility. The study of sperm plasma - the WHO standard. Determination of the level of cytokines in seminal plasma - by enzyme immunoassay («Cytokine», Russia). Two methods of mathematical statistics were used: discriminant analysis and classification trees (decision trees).The similarity of interpretations of discriminant analysis and decision tree was noted, where the main role in both cases belongs to the cytokine IL-4. The level of sperm IL-4 in combination with therapeutic monitoring can be used for the medical management of patients with chronic prostatitis in order to prevent the development of infertility and to develop methods for screening diagnostics of fertility disorders in men.
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Affiliation(s)
- O V Bukharin
- Institute of Cellular and Intracellular Symbiosis, Ural Branch of the Russian Academy of Sciences, separate subdivision OFRC, Ural Branch of the Russian Academy of Sciences
| | - M D Kuzmin
- Institute of Cellular and Intracellular Symbiosis, Ural Branch of the Russian Academy of Sciences, separate subdivision OFRC, Ural Branch of the Russian Academy of Sciences
| | - N B Perunova
- Institute of Cellular and Intracellular Symbiosis, Ural Branch of the Russian Academy of Sciences, separate subdivision OFRC, Ural Branch of the Russian Academy of Sciences
| | - I A Nikiforov
- Institute of Cellular and Intracellular Symbiosis, Ural Branch of the Russian Academy of Sciences, separate subdivision OFRC, Ural Branch of the Russian Academy of Sciences
| | - I N Chainikova
- Institute of Cellular and Intracellular Symbiosis, Ural Branch of the Russian Academy of Sciences, separate subdivision OFRC, Ural Branch of the Russian Academy of Sciences
| | - E V Ivanova
- Institute of Cellular and Intracellular Symbiosis, Ural Branch of the Russian Academy of Sciences, separate subdivision OFRC, Ural Branch of the Russian Academy of Sciences
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4
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Paira DA, Silvera-Ruiz S, Tissera A, Molina RI, Olmedo JJ, Rivero VE, Motrich RD. Interferon γ, IL-17, and IL-1β impair sperm motility and viability and induce sperm apoptosis. Cytokine 2022; 152:155834. [PMID: 35217429 DOI: 10.1016/j.cyto.2022.155834] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 02/07/2022] [Accepted: 02/15/2022] [Indexed: 11/03/2022]
Abstract
Urogenital inflammation is a known cause of male infertility. Increased levels of inflammatory cytokines, leukocyte counts and oxidative stress are highly detrimental for sperm quality thus compromising male fertility. Although cytokines affect sperm by recruiting and activating leukocytes consequently inducing tissue inflammation and oxidative stress, scarce to absent data have been reported about the putative direct effects of inflammatory cytokines on spermatozoa. Herein, we analyzed whether IFNγ, IL-17A, IL-1β, and IL-8 can alter human sperm motility and viability per se. Fractions of viable and motile spermatozoa from normospermic healthy donors were in vitro incubated with recombinant human IFNγ, IL-17A, IL-1β or IL-8 and sperm ROS production, motility, viability and apoptosis were analyzed. Sperm exposed to different concentrations of IFNγ, IL-17A and IL-1β, or a combination of them, for either 1 or 3 h showed significantly increased levels of mitochondrial ROS production and reduced motility and viability with respect to sperm incubated with vehicle. Moreover, the exposure to IFNγ, IL-17A and IL-1β resulted in significantly higher levels of early and/or late apoptotic and/or necrotic spermatozoa. Interestingly, no significant differences in sperm motility, viability and apoptosis were observed in sperm incubated with the concentrations of IL-8 analyzed, for either 1 or 3 h, with respect to sperm incubated with vehicle. In conclusion, our results indicate that IFNγ, IL-17A and IL-1β per se impair sperm motility and decreases viability by triggering increased mitochondrial ROS production and inducing sperm apoptosis. Our results suggest that screening inflammatory cytokines in semen would be an additional helpful tool for the diagnostic workup of male infertility.
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Affiliation(s)
- Daniela Andrea Paira
- Centro de Investigaciones en Bioquímica Clínica e Inmunología (CIBICI-CONICET), Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Silene Silvera-Ruiz
- Centro de Investigaciones en Bioquímica Clínica e Inmunología (CIBICI-CONICET), Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Andrea Tissera
- Laboratorio de Andrología y Reproducción (LAR), Córdoba, Argentina
| | | | - José Javier Olmedo
- Fundación Urológica Córdoba para la Docencia e Investigación Médica (FUCDIM), Córdoba, Argentina
| | - Virginia Elena Rivero
- Centro de Investigaciones en Bioquímica Clínica e Inmunología (CIBICI-CONICET), Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Ruben Dario Motrich
- Centro de Investigaciones en Bioquímica Clínica e Inmunología (CIBICI-CONICET), Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina.
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5
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Gong J, Zeng Q, Yu D, Duan YG. T Lymphocytes and Testicular Immunity: A New Insight into Immune Regulation in Testes. Int J Mol Sci 2020; 22:ijms22010057. [PMID: 33374605 PMCID: PMC7793097 DOI: 10.3390/ijms22010057] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 12/20/2020] [Accepted: 12/21/2020] [Indexed: 02/07/2023] Open
Abstract
The immune privilege of the testes is necessary to prevent immune attacks to gamete-specific antigens and paternal major histocompatibility complex (MHC) antigens, allowing for normal spermatogenesis. However, infection and inflammation of the male genital tract can break the immune tolerance and represent a significant cause of male infertility. Different T cell subsets have been identified in mammalian testes, which may be involved in the maintenance of immune tolerance and pathogenic immune responses in testicular infection and inflammation. We reviewed the evidence in the published literature on different T subtypes (regulatory T cells, helper T cells, cytotoxic T cells, γδ T cells, and natural killer T cells) in human and animal testes that support their regulatory roles in infertility and the orchitis pathology. While many in vitro studies have indicated the regulation potential of functional T cell subsets and their possible interaction with Sertoli cells, Leydig cells, and spermatogenesis, both under physiological and pathological processes, there have been no in situ studies to date. Nevertheless, the normal distribution and function of T cell subsets are essential for the immune privilege of the testes and intact spermatogenesis, and T cell-mediated immune response drives testicular inflammation. The distinct function of different T cell subsets in testicular homeostasis and the orchitis pathology suggests a considerable potential of targeting specific T cell subsets for therapies targeting chronic orchitis and immune infertility.
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Affiliation(s)
- Jialei Gong
- Shenzhen Key Laboratory of Fertility Regulation, Center of Assisted Reproduction and Embryology, The University of Hong Kong-Shenzhen Hospital, Shenzhen 518053, China
| | - Qunxiong Zeng
- Shenzhen Key Laboratory of Fertility Regulation, Center of Assisted Reproduction and Embryology, The University of Hong Kong-Shenzhen Hospital, Shenzhen 518053, China
| | - Di Yu
- The University of Queensland Diamantina Institute, Faculty of Medicine, The University of Queensland, Woolloongabba, QLD 4102, Australia
| | - Yong-Gang Duan
- Shenzhen Key Laboratory of Fertility Regulation, Center of Assisted Reproduction and Embryology, The University of Hong Kong-Shenzhen Hospital, Shenzhen 518053, China
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6
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Henkel R, Offor U, Fisher D. The role of infections and leukocytes in male infertility. Andrologia 2020; 53:e13743. [PMID: 32693434 DOI: 10.1111/and.13743] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 06/05/2020] [Accepted: 06/05/2020] [Indexed: 12/16/2022] Open
Abstract
Declining birth rates are one of the problems facing society today. Male counterparts are responsible for about half of the infertility cases, and genitourinary tract infections may play a contributing role in approximately 15% of male infertility cases. Leukocytospermia is an established indicator of infection in the male urogenital tract, although other microorganisms such as bacteria and virus may also be contributors to the etiology of male infertility. The pathophysiology of these infectious agents may be initiated by a local inflammatory reaction resulting in an increase in reactive oxygen species (ROS). This results in testicular injury, thereby affecting sperm morphology, sperm motility, sperm viability and elevation of the seminal leukocyte as a result of the genital tract infection. The infectious and inflammatory changes can result in male infertility. It is proposed that high concentrations of seminal leukocyte and infectious agents may affect sperm function resulting in clumping of motile spermatozoa, decreasing acrosomal functionality and also causing alterations in sperm morphology. However, the literature has poorly clarified the role of infection in male infertility, provoking further debate and research on this topic.
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Affiliation(s)
- Ralf Henkel
- Department of Medical Bioscience, Faculty of Natural Science, University of Western Cape, Bellville, South Africa.,American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA
| | - Ugochukwu Offor
- Department of Pre-Clinical Sciences, Faculty of Health Sciences, University of Limpopo, Polokwane, South Africa
| | - David Fisher
- Department of Medical Bioscience, Faculty of Natural Science, University of Western Cape, Bellville, South Africa
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7
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Duan YG, Wehry UP, Buhren BA, Schrumpf H, Oláh P, Bünemann E, Yu CF, Chen SJ, Müller A, Hirchenhain J, Lierop A, Novak N, Cai ZM, Krüssel JS, Schuppe HC, Haidl G, Gerber PA, Allam JP, Homey B. CCL20-CCR6 axis directs sperm-oocyte interaction and its dysregulation correlates/associates with male infertility‡. Biol Reprod 2020; 103:630-642. [PMID: 32412043 DOI: 10.1093/biolre/ioaa072] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 02/28/2020] [Accepted: 05/12/2020] [Indexed: 11/12/2022] Open
Abstract
The interaction of sperm with the oocyte is pivotal during the process of mammalian fertilization. The limited numbers of sperm that reach the fallopian tube as well as anatomic restrictions indicate that human sperm-oocyte encounter is not a matter of chance but a directed process. Chemotaxis is the proposed mechanism for re-orientating sperm toward the source of a chemoattractant and hence to the oocyte. Chemokines represent a superfamily of small (8-11 kDa), cytokine-like proteins that have been shown to mediate chemotaxis and tissue-specific homing of leukocytes through binding to specific chemokine receptors such as CCRs. Here we show that CCR6 is abundantly expressed on human sperms and in human testes. Furthermore, radioligand-binding experiments showed that CCL20 bound human sperm in a specific manner. Conversely, granulosa cells of the oocyte-surrounding cumulus complex as well as human oocytes represent an abundant source of the CCR6-specific ligand CCL20. In human ovaries, CCL20 shows a cycle-dependent expression pattern with peak expression in the preovulatory phase and CCL20 protein induces chemotactic responses of human sperm. Neutralization of CCL20 in ovarian follicular fluid significantly impairs sperm migratory responses. Conversely, analyses in infertile men with inflammatory conditions of the reproductive organs demonstrate a significant increase of CCL20/CCR6 expression in testis and ejaculate. Taken together, findings of the present study suggest that CCR6-CCL20 interaction may represent an important factor in directing sperm-oocyte interaction.
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Affiliation(s)
- Yong-Gang Duan
- Shenzhen Key Laboratory of Fertility Regulation, Center of Assisted Reproduction and Embryology, The University of Hong Kong - Shenzhen Hospital
| | - U P Wehry
- Department of Dermatology, Medical Faculty, Heinrich-Heine-University, 40225 Düsseldorf, Germany
| | - B A Buhren
- Department of Dermatology, Medical Faculty, Heinrich-Heine-University, 40225 Düsseldorf, Germany
| | - H Schrumpf
- Department of Dermatology, Medical Faculty, Heinrich-Heine-University, 40225 Düsseldorf, Germany
| | - P Oláh
- Department of Dermatology, Medical Faculty, Heinrich-Heine-University, 40225 Düsseldorf, Germany.,Department of Dermatology, Venereology and Oncodermatology, Medical Faculty, University of Pécs, Pécs, Hungary
| | - E Bünemann
- Department of Dermatology, Medical Faculty, Heinrich-Heine-University, 40225 Düsseldorf, Germany
| | - C-F Yu
- Department of Dermatology, Medical Faculty, Heinrich-Heine-University, 40225 Düsseldorf, Germany
| | - S-J Chen
- Depatment of Minimally Invasive Gynecologic Surgery, Beijing Obstetrics and Gynaecology Hospital, Capital Medical University, 100006 Beijing, PR China
| | - A Müller
- Department of Dermatology, Medical Faculty, Heinrich-Heine-University, 40225 Düsseldorf, Germany
| | - J Hirchenhain
- Department of Obstetrics and Gynecology, Medical Faculty, Heinrich-Heine-University, 40225 Düsseldorf, Germany
| | - A Lierop
- Department of Dermatology, Medical Faculty, Heinrich-Heine-University, 40225 Düsseldorf, Germany
| | - N Novak
- Department of Dermatology and Allergy, Andrology Unit, University of Bonn, 53105 Bonn, Germany
| | - Zhi-Ming Cai
- Shenzhen Key Laboratory of Fertility Regulation, Center of Assisted Reproduction and Embryology, The University of Hong Kong - Shenzhen Hospital
| | - J S Krüssel
- Department of Obstetrics and Gynecology, Medical Faculty, Heinrich-Heine-University, 40225 Düsseldorf, Germany
| | - H-C Schuppe
- Department of Obstetrics and Gynecology, Medical Faculty, Heinrich-Heine-University, 40225 Düsseldorf, Germany
| | - G Haidl
- Department of Dermatology and Allergy, Andrology Unit, University of Bonn, 53105 Bonn, Germany
| | - P A Gerber
- Department of Dermatology, Medical Faculty, Heinrich-Heine-University, 40225 Düsseldorf, Germany
| | - J-P Allam
- Department of Dermatology and Allergy, Andrology Unit, University of Bonn, 53105 Bonn, Germany
| | - B Homey
- Department of Dermatology, Medical Faculty, Heinrich-Heine-University, 40225 Düsseldorf, Germany
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8
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Aseptic Technology for Cryoprotectant-Free Vitrification of Human Spermatozoa by Direct Dropping into Clean Liquid Air: Apoptosis, Necrosis, Motility, and Viability. BIOMED RESEARCH INTERNATIONAL 2020; 2020:2934315. [PMID: 32047807 PMCID: PMC7003260 DOI: 10.1155/2020/2934315] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Revised: 12/04/2019] [Accepted: 12/16/2019] [Indexed: 11/20/2022]
Abstract
This study aimed to compare the quality of human spermatozoa vitrified by direct plunging into liquid nitrogen vs. liquid air. Spermatozoa were divided into three groups: fresh spermatozoa (Group F) were used as a control. Spermatozoa suspension (20 μl) was vitrified in open granules by direct dropping into liquid nitrogen (Group LN) or clean liquid air (Group LA). After warming at 37°C, the progressive motility rate of Group F was reduced from 65.9 ± 2.5% to 34.0 ± 1.9% (Group LN) and 38.1 ± 2.3% (Group LA), respectively (P1-2,3 < 0.05). The reductions in viability were 65.6 ± 2.2%, 29.0 ± 1.8%, and 36.6 ± 2.6% for Groups F, LN, and LA, respectively (P1-2,3 < 0.05). Comparing spermatozoa vitrified in liquid nitrogen vs. liquid air, no significant differences were detected in motility (34.0 ± 1.9% vs. 38.1 ± 2.3%), viability (29.0 ± 1.8% vs. 36.6 ± 2.6%), early apoptosis (13.8 ± 1.5% vs. 14.3 ± 1.8%), late apoptosis (45.5 ± 1.8% vs. 43.7 ± 2.2%), and necrosis (19.5 ± 2.0% vs. 15.0 ± 1.8%; p > 0.01 for all respective differences). There was a statistical tendency for increasing rates of “progressive motility” and “viability” and decreasing rates of “apoptosis” and “necrosis” when comparing spermatozoa vitrified in liquid air vs. liquid nitrogen. It is concluded that cryoprotectant-free vitrification by the direct dropping of human spermatozoa in a clean cooling agent (liquid air) is a good alternative to the use of nonsterile liquid nitrogen and can be used to cool cells while minimising the risk of microbial contamination.
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9
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Schulz M, Zambrano F, Schuppe HC, Wagenlehner F, Taubert A, Gaertner U, Sánchez R, Hermosilla C. Monocyte-derived extracellular trap (MET) formation induces aggregation and affects motility of human spermatozoa in vitro. Syst Biol Reprod Med 2019; 65:357-366. [PMID: 31208212 DOI: 10.1080/19396368.2019.1624873] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The presence of bacteria and/or leukocytes can alter semen quality resulting in low sperm quality and infertility. Inflammation or infection increases the numbers of PMN or macrophages/monocytes in male genital tract. Release of extracellular traps (ETs) by leukocytes has been recognized as a novel mechanism of early host innate immunity, in response to invasive pathogens. This is the first work that evaluated the mechanism of triggered ETs in monocytes co-incubated with spermatozoa or bacteria and the effect on sperm function. Selected spermatozoa and human monocytes isolated from peripheral blood were obtained by healthy donors. Two experimental models were developed, one aseptic (non-infectious) incubating spermatozoa and monocytes, and septic models (infectious) incubating spermatozoa with monocytes and uropathogenic Escherichia coli (E. coli). ETs of monocytes (METs) (DNA, global histone and citrullinated histones) were visualized by scanning electron microscopy (SEM) and immunofluorescence analyses. Progressive motility was performed at 0, 10, 30, 60, and 180 min after co-incubation with CASA system. SEM- and immunofluorescence-analyses revealed human spermatozoa alone or in the presence of E. coli as strong inducers METs. In aseptic model, the motility decreased to 65.2 ± 3.5% at 10 min of incubation and 29.3 ± 3.3% at 30 min (p < 0.001). In septic model, motility decreased to 44.5 ± 5.9% (10 min) and 12.7 ± 2.2% (30 min) (p < 0.001). MET-derived small spermatozoa aggregations were observed in both models. METs might physically block spermatozoa and decrease motility after a brief contact. This may impair male fertility, especially in patients with genital tract infections or chronic inflammation. Abbreviations: PMN: polymorphonuclear; ETs: extracellular traps; E. coli: Escherichia coli; METs: ETs of monocytes; SEM: scanning electron microscopy; NE: neutrophil elastase; MPO: myeloperoxidase; MAGI: male accessory gland infection; PBMC: peripheral blood mononuclear cells; RT: room temperature; CFU: colony forming units; CASA: computer-aided sperm analysis; H4Cit3: histone H4 citrullinated 3.
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Affiliation(s)
- Mabel Schulz
- Laboratory of Reproductive Medicine and Molecular Endocrinology, Center for Translational Medicine (CEMT-BIOREN), Faculty of Medicine, Universidad de La Frontera , Temuco , Chile.,Doctoral Program in Morphological Sciences, Faculty of Medicine, Universidad de La Frontera , Temuco , Chile.,Institute of Parasitology, Biomedical Research Center Seltersberg (BFS), Justus Liebig University Giessen , Giessen , Germany
| | - Fabiola Zambrano
- Laboratory of Reproductive Medicine and Molecular Endocrinology, Center for Translational Medicine (CEMT-BIOREN), Faculty of Medicine, Universidad de La Frontera , Temuco , Chile.,Department of Preclinical Science, Faculty of Medicine, Universidad de La Frontera , Temuco , Chile
| | - Hans-Christian Schuppe
- Department of Urology, Pediatric Urology and Andrology, Justus Liebig University Giessen , Giessen , Germany
| | - Florian Wagenlehner
- Department of Urology, Pediatric Urology and Andrology, Justus Liebig University Giessen , Giessen , Germany
| | - Anja Taubert
- Institute of Parasitology, Biomedical Research Center Seltersberg (BFS), Justus Liebig University Giessen , Giessen , Germany
| | - Ulrich Gaertner
- Institute of Anatomy and Cell Biology, Justus Liebig University Giessen , Giessen , Germany
| | - Rául Sánchez
- Laboratory of Reproductive Medicine and Molecular Endocrinology, Center for Translational Medicine (CEMT-BIOREN), Faculty of Medicine, Universidad de La Frontera , Temuco , Chile.,Department of Preclinical Science, Faculty of Medicine, Universidad de La Frontera , Temuco , Chile
| | - Carlos Hermosilla
- Institute of Parasitology, Biomedical Research Center Seltersberg (BFS), Justus Liebig University Giessen , Giessen , Germany
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10
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Ferigolo PC, Ribeiro de Andrade MB, Camargo M, Carvalho VM, Cardozo KHM, Bertolla RP, Fraietta R. Sperm functional aspects and enriched proteomic pathways of seminal plasma of adult men with obesity. Andrology 2019; 7:341-349. [DOI: 10.1111/andr.12606] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Revised: 12/19/2018] [Accepted: 02/11/2019] [Indexed: 12/13/2022]
Affiliation(s)
- P. C. Ferigolo
- Department of Surgery Division of Urology Human Reproduction Section Sao Paulo Federal University Sao Paulo Brazil
| | - M. B. Ribeiro de Andrade
- Department of Surgery Division of Urology Human Reproduction Section Sao Paulo Federal University Sao Paulo Brazil
| | - M. Camargo
- Department of Surgery Division of Urology Human Reproduction Section Sao Paulo Federal University Sao Paulo Brazil
| | | | | | - R. P. Bertolla
- Department of Surgery Division of Urology Human Reproduction Section Sao Paulo Federal University Sao Paulo Brazil
- Hospital São Paulo São Paulo Brazil
| | - R. Fraietta
- Department of Surgery Division of Urology Human Reproduction Section Sao Paulo Federal University Sao Paulo Brazil
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11
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Haidl G, Haidl F, Allam JP, Schuppe HC. Therapeutic options in male genital tract inflammation. Andrologia 2018; 51:e13207. [DOI: 10.1111/and.13207] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 09/25/2018] [Accepted: 10/15/2018] [Indexed: 12/21/2022] Open
Affiliation(s)
- Gerhard Haidl
- Andrology Unit, Department of Dermatology and Allergy; University Hospital Bonn; Bonn Germany
| | - Friederike Haidl
- Department of Urology; University Hospital Cologne; Cologne Germany
| | - Jean-Pierre Allam
- Andrology Unit, Department of Dermatology and Allergy; University Hospital Bonn; Bonn Germany
| | - Hans-Christian Schuppe
- Department of Urology, Pediatric Urology and Andrology; Justus Liebig University; Giessen Germany
- Hessian Centre of Reproductive Medicine; Justus Liebig University; Giessen Germany
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12
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Hajizadeh Maleki B, Tartibian B. Combined aerobic and resistance exercise training for improving reproductive function in infertile men: a randomized controlled trial. Appl Physiol Nutr Metab 2017; 42:1293-1306. [DOI: 10.1139/apnm-2017-0249] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
This randomized controlled trial was conducted to examine the effects of 24 weeks of combined aerobic and resistance exercise training on seminal markers of inflammation and oxidative stress as well as markers of male reproductive function and reproductive performance in infertile patients. Of a total of 1296 infertile patients (aged 25–40 years) who were screened, 556 were randomly assigned to exercise (n = 278) and nonexercise (n = 278) groups. Semen samples were taken before and at 12 and 24 weeks as well as 7 and 30 days post-intervention. The training program reduced seminal proinflammatory cytokines (interleukin (IL)-1β, IL-6, IL-8, and tumor necrosis factor alpha) and markers of oxidative stress (reactive oxygen species, malondialdehyde, and 8-isoprostane) (P < 0.05). Additional improvements were also achieved in seminal antioxidant defense system (superoxide dismutase, catalase, and total antioxidant capacity) (P < 0.05). Training-induced changes in inflammation and oxidative stress status correlated with favorable improvements in semen parameters, sperm DNA integrity, and pregnancy rate (P < 0.05). In conclusion, these results support the evidence for the favorable effects of combined aerobic and resistance exercise training in male factor infertility.
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Affiliation(s)
| | - Bakhtyar Tartibian
- Department of Sports Injuries, Faculty of Physical Education and Sports Sciences, Allameh Tabataba’i University, Tehran, Iran
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13
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Wu H, Wang D, Meng Y, Ning H, Liu X, Xie Y, Cui L, Wang S, Xu X, Peng R. Activation of TLR signalling regulates microwave radiation-mediated impairment of spermatogenesis in rat testis. Andrologia 2017; 50. [PMID: 28782295 DOI: 10.1111/and.12828] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/09/2017] [Indexed: 02/06/2023] Open
Affiliation(s)
- H. Wu
- Department of Pathology; Navy General Hospital; Beijing China
| | - D. Wang
- Beijing Institute of Radiation Medicine; Beijing China
| | - Y. Meng
- Department of Pathology; Navy General Hospital; Beijing China
| | - H. Ning
- Department of Pathology; Navy General Hospital; Beijing China
| | - X. Liu
- Department of Pathology; Navy General Hospital; Beijing China
| | - Y. Xie
- Beijing Institute of Radiation Medicine; Beijing China
| | - L. Cui
- Beijing Institute of Radiation Medicine; Beijing China
| | - S. Wang
- Beijing Institute of Radiation Medicine; Beijing China
| | - X. Xu
- Beijing Institute of Radiation Medicine; Beijing China
| | - R. Peng
- Beijing Institute of Radiation Medicine; Beijing China
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14
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Heppt F, Colsman A, Maronna A, Uslu U, Heppt MV, Kiesewetter F, Sticherling M. Influence of TNF-alpha inhibitors and fumaric acid esters on male fertility in psoriasis patients. J Eur Acad Dermatol Venereol 2017; 31:1860-1866. [PMID: 28557008 DOI: 10.1111/jdv.14364] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Accepted: 04/19/2017] [Indexed: 12/29/2022]
Abstract
OBJECTIVE Is there any influence of a therapy with TNF-alpha inhibitors or fumaric acid esters and of disease activity status on male fertility and sperm quality in patients with psoriasis? METHODS In this monocentric, open-label, prospective study, semen samples were collected from patients receiving either TNF-alpha inhibitors or fumaric acid esters for moderate-to-severe plaque psoriasis. Semen was analysed at baseline before onset of the systemic therapy and monitored every 3 months under therapy. Sperm parameters were assessed according to the current WHO definitions. RESULTS In total, 101 semen specimens from 27 patients were obtained. Mean Psoriasis Area and Severity Index (PASI) score at baseline was 11.05. Only 14.8% of patients showed a normozoospermia without any other abnormal seminal values. 85.2% of patients had at least one sperm/seminal abnormality, including two patients showing an azoospermia. Interestingly, 48.1% showed sperm parameters indicative of genital tract inflammation. Therapy with TNF-alpha inhibitors or fumaric acid esters did not have any negative effects on relevant sperm parameters such as mean total sperm number, sperm concentration, total and progressive motility. No major gonadal dysfunction was observed in any patient. CONCLUSION At baseline, many patients with psoriasis showed abnormal semen/sperm parameters and remarkably elevated leukocytes and values of seminal polymorphonuclear elastase, indicating a genital tract inflammation. Thus, genital tract inflammation may represent an important comorbidity of psoriasis, little attention paid to so far. Regarding treatment with TNF-alpha inhibitors or fumaric acid esters, no major negative (side-) effects on sperm quality were observed.
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Affiliation(s)
- F Heppt
- Department of Dermatology, University Hospital of Erlangen, Erlangen, Germany
| | - A Colsman
- Department of Dermatology, University Hospital of Erlangen, Erlangen, Germany
| | - A Maronna
- Department of Dermatology, University Hospital of Erlangen, Erlangen, Germany
| | - U Uslu
- Department of Dermatology, University Hospital of Erlangen, Erlangen, Germany
| | - M V Heppt
- Department of Dermatology and Allergy, Munich University Hospital (LMU), Munich, Germany
| | - F Kiesewetter
- Department of Dermatology, University Hospital of Erlangen, Erlangen, Germany
| | - M Sticherling
- Department of Dermatology, University Hospital of Erlangen, Erlangen, Germany
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15
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Duan YG, Chen S, Haidl G, Allam JP. Detection of invariant natural killer T cells in ejaculates from infertile patients with chronic inflammation of genital tract. Am J Reprod Immunol 2017; 78. [DOI: 10.1111/aji.12671] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Accepted: 02/22/2017] [Indexed: 11/29/2022] Open
Affiliation(s)
- Yong-Gang Duan
- Shenzhen Key Laboratory of Fertility Regulation; Center of Assisted Reproduction and Embryology; The University of Hong Kong - Shenzhen Hospital; Shenzhen China
- Department of Dermatology / Andrology Unit; University of Bonn; Bonn Germany
| | - Shujian Chen
- Department of Dermatology / Andrology Unit; University of Bonn; Bonn Germany
| | - Gerhard Haidl
- Department of Dermatology / Andrology Unit; University of Bonn; Bonn Germany
| | - Jean-Pierre Allam
- Department of Dermatology / Andrology Unit; University of Bonn; Bonn Germany
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16
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Schagdarsurengin U, Western P, Steger K, Meinhardt A. Developmental origins of male subfertility: role of infection, inflammation, and environmental factors. Semin Immunopathol 2016; 38:765-781. [PMID: 27315198 DOI: 10.1007/s00281-016-0576-y] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2016] [Accepted: 06/06/2016] [Indexed: 12/28/2022]
Abstract
Male gamete development begins with the specification of primordial cells in the epiblast of the early embryo and is not complete until spermatozoa mature in the epididymis of adult males. This protracted developmental process involves extensive alteration of the paternal germline epigenome. Initially, epigenetic reprogramming in fetal germ cells results in removal of most DNA methylation, including parent-specific epigenetic information. The germ cells then establish sex-specific epigenetic information through de novo methylation and undergo spermatogenesis. Chromatin in haploid germ cells is repackaged into protamines during spermiogenesis, providing further widespread epigenetic reorganization. Finally, after fertilization, epigenetic reprogramming in the preimplantation embryo is necessary for regaining totipotency. These events provide substantial windows during which epigenetic errors either may be corrected or may occur in the germline. There is now increasing evidence that environmental factors such as exposure to toxicants, the parents' and individual's diet, and even infectious and inflammatory events in the male reproductive tract may influence epigenetic reprogramming. This, together with other damage inflicted on the germline chromatin, may result in negative consequences for fertility and health. Large epidemiological birth cohort studies have yielded insight into possible causative environmental factors. Together with experimental animal studies, a clearer view of environmental impacts on fetal development and their intergenerational and even transgenerational effects on reproductive health has emerged and is reviewed in this article.
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Affiliation(s)
- Undraga Schagdarsurengin
- Department of Urology, Pediatric Urology and Andrology, Section Molecular Andrology, Justus-Liebig University of Giessen, Giessen, Germany
| | - Patrick Western
- Centre for Genetic Diseases, Hudson Institute for Medical Research and Department of Molecular and Translational Science, Monash University, Clayton, VIC, 3168, Australia
| | - Klaus Steger
- Department of Urology, Pediatric Urology and Andrology, Section Molecular Andrology, Justus-Liebig University of Giessen, Giessen, Germany
| | - Andreas Meinhardt
- Institute of Anatomy and Cell Biology, Unit of Reproductive Biology, Justus-Liebig University of Giessen, Aulweg 123, 35385, Giessen, Germany.
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17
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Fraczek M, Hryhorowicz M, Gaczarzewicz D, Szumala-Kakol A, Kolanowski TJ, Beutin L, Kurpisz M. Can apoptosis and necrosis coexist in ejaculated human spermatozoa during in vitro semen bacterial infection? J Assist Reprod Genet 2015; 32:771-9. [PMID: 25808020 DOI: 10.1007/s10815-015-0462-x] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2014] [Accepted: 03/06/2015] [Indexed: 01/23/2023] Open
Abstract
PURPOSE To evaluate whether ejaculated human spermatozoa undergo complete apoptosis or necrosis during experimental semen bacterial infection in vitro. METHODS Apoptotic markers, including mitochondrial transmembrane potential (ΔΨm), phosphatidylserine (PS) externalization, and DNA fragmentation, have been detected simultaneously in ejaculated human sperm after their incubation with a known pathogenic (Escherichia coli), as well as with conditionally pathogenic bacterial strains (Staphylococcus haemolyticus, Bacteroides ureolyticus) and/or leukocytes. The ΔΨm and translocation of PS was evaluated using the JC-1 and Annexin V binding tests, respectively. A modified TUNEL assay with additional staining for sperm viability was used to detect the DNA fragmentation level. RESULTS The exposure of ejaculated spermatozoa to bacterial strains was associated with a simultaneous decrease in the percentage of sperm with normal ΔΨm and an increase in the proportion of Annexin V-positive sperm. Additionally, in the presence of S. haemolyticus, B. ureolyticus and/or leukocytes, a significant increase in the percentage of live TUNEL-positive (apoptotic) as well as dead TUNEL-positive (necrotic) sperm cells was also observed. CONCLUSIONS The cellular death observed in spermatozoa in the presence of inflammatory mediators may be due to both apoptosis and necrosis. Here, we demonstrate for the first time that direct contact of conditionally pathogenic bacteria with ejaculated human sperm may play an even greater role in the promotion of apoptosis than in case of some pathogenic bacterial strains. These findings suggest that significant bacteriospermia and leukocytospermia may be direct causes of subfertility or additional negative factors worsening the prognosis of fertility in natural and assisted procreation.
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Affiliation(s)
- Monika Fraczek
- Department of Reproductive Biology and Stem Cells, Institute of Human Genetics, Polish Academy of Sciences, Strzeszynska 32, 60-685, Poznan, Poland
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18
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Haidl F, Haidl G, Oltermann I, Allam JP. Seminal parameters of chronic male genital inflammation are associated with disturbed sperm DNA integrity. Andrologia 2015; 47:464-9. [DOI: 10.1111/and.12408] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/13/2015] [Indexed: 12/21/2022] Open
Affiliation(s)
- F. Haidl
- Department of Urology; University Hospital Cologne; Cologne Germany
| | - G. Haidl
- Department of Dermatology and Allergy; Andrology Unit; University Hospital Bonn; Bonn Germany
| | - I. Oltermann
- Department of Dermatology and Allergy; Andrology Unit; University Hospital Bonn; Bonn Germany
| | - J. P. Allam
- Department of Dermatology and Allergy; Andrology Unit; University Hospital Bonn; Bonn Germany
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19
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La Vignera S, Condorelli RA, Vicari E, Salmeri M, Morgia G, Favilla V, Cimino S, Calogero AE. Microbiological investigation in male infertility: a practical overview. J Med Microbiol 2014; 63:1-14. [DOI: 10.1099/jmm.0.062968-0] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
The roles of inflammation and/or infection of the male accessory sex glands are very important for the potential effects that these conditions may have on male fertility. The clinical andrologist should be aware of the pathophysiological role of the main determinants of sperm damage when these conditions occur, in particular, seminal leukocytes, oxidative stress and cytokines. In addition, it is important to have a good knowledge of the methodologies to be used in clinical practice. This article summarizes the methods used to look for and to identify the micro-organisms responsible for male urogenital tract infections. These include sperm culture, urine culture, urethral swabbing, the Meares–Stamey test and balanopreputial swabbing. Finally, we discuss the role of human papilloma virus infection in male infertility.
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Affiliation(s)
- Sandro La Vignera
- Department of Medical and Pediatric Sciences, Section of Endocrinology, Andrology and Internal Medicine, University of Catania, Catania, Italy
| | - Rosita A. Condorelli
- Department of Medical and Pediatric Sciences, Section of Endocrinology, Andrology and Internal Medicine, University of Catania, Catania, Italy
| | - Enzo Vicari
- Department of Medical and Pediatric Sciences, Section of Endocrinology, Andrology and Internal Medicine, University of Catania, Catania, Italy
| | - Mario Salmeri
- Department of Bio-Medical Sciences, University of Catania, Catania, Italy
| | - Giuseppe Morgia
- Department of Urology, University of Catania, Catania, Italy
| | | | | | - Aldo E. Calogero
- Department of Medical and Pediatric Sciences, Section of Endocrinology, Andrology and Internal Medicine, University of Catania, Catania, Italy
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20
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Duan YG, Zhang Q, Liu Y, Mou L, Li G, Gui Y, Cai Z. Dendritic cells in semen of infertile men: association with sperm quality and inflammatory status of the epididymis. Fertil Steril 2014; 101:70-77.e3. [DOI: 10.1016/j.fertnstert.2013.09.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2013] [Revised: 08/18/2013] [Accepted: 09/04/2013] [Indexed: 10/26/2022]
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21
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Fathy A, Chen SJ, Novak N, Schuppe HC, Haidl G, Allam JP. Differential leucocyte detection by flow cytometry improves the diagnosis of genital tract inflammation and identifies macrophages as proinflammatory cytokine-producing cells in human semen. Andrologia 2013; 46:1004-12. [DOI: 10.1111/and.12188] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/16/2013] [Indexed: 02/04/2023] Open
Affiliation(s)
- A. Fathy
- Department of Dermatology and Allergy/Andrology Unit; Rheinische Friedrich-Wilhelms University; Bonn Germany
| | - S. J. Chen
- Department of Dermatology and Allergy/Andrology Unit; Rheinische Friedrich-Wilhelms University; Bonn Germany
| | - N. Novak
- Department of Dermatology and Allergy/Andrology Unit; Rheinische Friedrich-Wilhelms University; Bonn Germany
| | - H.-C. Schuppe
- Department of Urology, Paediatric Urology and Andrology; Justus Liebig University; Giessen Germany
| | - G. Haidl
- Department of Dermatology and Allergy/Andrology Unit; Rheinische Friedrich-Wilhelms University; Bonn Germany
| | - J.-P. Allam
- Department of Dermatology and Allergy/Andrology Unit; Rheinische Friedrich-Wilhelms University; Bonn Germany
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22
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La Vignera S, Condorelli RA, Vicari E, Tumino D, Morgia G, Favilla V, Cimino S, Calogero AE. Markers of semen inflammation: supplementary semen analysis? J Reprod Immunol 2013; 100:2-10. [DOI: 10.1016/j.jri.2013.05.001] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2013] [Revised: 03/21/2013] [Accepted: 05/06/2013] [Indexed: 10/26/2022]
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23
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In vitro reconstruction of inflammatory reaction in human semen: effect on sperm DNA fragmentation. J Reprod Immunol 2013; 100:76-85. [DOI: 10.1016/j.jri.2013.09.005] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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24
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Oxidative stress, spermatozoa and leukocytic infiltration: relationships forged by the opposing forces of microbial invasion and the search for perfection. J Reprod Immunol 2013; 100:11-9. [DOI: 10.1016/j.jri.2013.06.005] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2013] [Revised: 06/10/2013] [Accepted: 06/26/2013] [Indexed: 11/22/2022]
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25
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Oishi M, Takahashi M, Amasaki H, Janssen T, Johnston SD. The seminiferous epithelial cycle and microanatomy of the koala (Phascolarctos cinereus) and southern hairy-nosed wombat (Lasiorhinus latifrons) testis. J Anat 2013; 222:380-9. [PMID: 23278248 DOI: 10.1111/joa.12020] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/27/2012] [Indexed: 02/05/2023] Open
Abstract
The koala (Phascolarctos cinereus) and southern hairy-nosed wombat (Lasiorhinus latifrons) are iconic Australian fauna that share a close phylogenetic relationship but there are currently no comparative studies of the seminiferous epithelial cell or testicular microanatomy of either species. Koala and wombat spermatozoa are unusual for marsupials as they possess a curved stream-lined head and lateral neck insertion that superficially is similar to murid spermatozoa; the koala also contains Sertoli cells with crystalloid inclusions that closely resemble the Charcot-Bottcher crystalloids described in human Sertoli cells. Eighteen sexually mature koalas and four sexually mature southern hairy-nosed (SHN) wombats were examined to establish base-line data on quantitative testicular histology. Dynamics of the seminiferous epithelial cycle in the both species consisted of eight stages of cellular association similar to that described in other marsupials. Both species possessed a high proportion of the pre-meiotic (stages VIII, I - III; koala - 62.2 ± 1.7% and SHN wombat - 66.6 ± 2.4%) when compared with post-meiotic stages of the seminiferous cycle. The mean diameters of the seminiferous tubules found in the koalas and the SHN wombats were 227.8 ± 6.1 and 243.5 ± 3.9 μm, respectively. There were differences in testicular histology between the species including the koala possessing (i) a greater proportion of Leydig cells, (ii) larger Sertoli cell nuclei, (iii) crystalloids in the Sertoli cell cytoplasm, (iv) a distinctive acrosomal granule during spermiogenesis and (v) a highly eosinophilic acrosome. An understanding of the seminiferous epithelial cycle and microanatomy of testis is fundamental for documenting normal spermatogenesis and testicular architecture; recent evidence of orchitis and epididymitis associated with natural chlamydial infection in the koala suggest that this species might be useful as an experimental model for understanding Chlamydia induced testicular pathology in humans. Comparative spermatogenic data of closely related species can also potentially reflect evolutionary divergence and differences in reproductive strategies.
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Affiliation(s)
- Motoharu Oishi
- Department of Veterinary Anatomy, School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan.
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26
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Wu H, Wang D, Shu Z, Zhou H, Zuo H, Wang S, Li Y, Xu X, Li N, Peng R. Cytokines produced by microwave-radiated Sertoli cells interfere with spermatogenesis in rat testis. Andrologia 2011; 44 Suppl 1:590-9. [PMID: 22211786 DOI: 10.1111/j.1439-0272.2011.01232.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Microwave radiation resulted in degeneration, apoptosis or necrosis in germ cells at different stages. The molecular mechanisms by which microwaves induce spermatogenesis disorder have not been completely understood. Sertoli cells play crucial roles in mammalian spermatogenesis. Cytokines produced by Sertoli cells play pleiotropic roles in different conditions. At physiologically low concentration, TNFα, IL-1β and IL-6 behave as survival factors; while under pathological condition, these cytokines can induce apoptosis in testis. The effects of cytokines produced by microwave-radiated Sertoli cells on spermatogenesis are poorly understood. The purpose of this study was to determine the effect of cytokines produced by microwave-radiated Sertoli cells on the germ cells. We focused the effect of TNFα, IL-1β and IL-6 on the germ cells. The results showed that TNFα, IL-1β and IL-6 were increased in Sertoli cells after exposure to microwave radiation. These up-regulated cytokines can induce apoptosis and lipid peroxidation in the membrane of germ cells. In addition, germ cell apoptosis was associated with the up-regulation of Bax/Bcl-2 and caspase-3. These results suggest that cytokines produced by microwave-radiated Sertoli cells may disrupt spermatogenesis. Our data provided novel insight into the injury mechanism of germ cells induced by microwave radiation.
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Affiliation(s)
- H Wu
- Beijing Institute of Radiation Medicine, Beijing, China
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27
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Fujita Y, Mihara T, Okazaki T, Shitanaka M, Kushino R, Ikeda C, Negishi H, Liu Z, Richards JS, Shimada M. Toll-like receptors (TLR) 2 and 4 on human sperm recognize bacterial endotoxins and mediate apoptosis. Hum Reprod 2011; 26:2799-806. [PMID: 21775336 DOI: 10.1093/humrep/der234] [Citation(s) in RCA: 96] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Bacterial infections of the genital tract are one of the most serious causes of infertility in males. In some human patients with poor semen quality, leukocytospermia has been observed. Because leukocytes express the bacterial-lipopolysaccharide (LPS) responsive Toll-like receptor (TLR) signaling cascade and secrete tumor necrosis factor-α, secreted cytokines comprise one, but probably not the only, class of factors that can impact sperm motility. METHODS AND RESULTS In this study, we documented that bacterial endotoxins, LPS and peptidoglycan, can be detected in human semen. Furthermore, the addition of endotoxins in the absence of leukocytes directly and significantly reduced the motility and increased the apoptotic rate of both human and mouse sperm and suppressed fertilization by mouse sperm both in vivo and in vitro. The well-known LPS receptor, TLR4, and peptidoglycan receptor, TLR2, were expressed in human and mouse sperm. In Tlr2/4(-/-) double-mutant mice, the negative effects of endotoxins on sperm functions were blocked, suggesting that the bacterial endotoxins mediated activation of TLR-dependent pathways in sperm leading to apoptosis. CONCLUSIONS Sperm can recognize bacterial endotoxins by TLRs present in their membranes. The activated TLRs reduce sperm motility, induce sperm apoptosis and significantly impair the potential for fertilization.
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Affiliation(s)
- Youko Fujita
- Laboratory of Reproductive Endocrinology, Department of Applied Animal Science, Graduate School of Biosphere Science, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8528, Japan
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28
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La Vignera S, Vicari E, Condorelli RA, D'Agata R, Calogero AE. Male accessory gland infection and sperm parameters (review). ACTA ACUST UNITED AC 2011; 34:e330-47. [PMID: 21696400 DOI: 10.1111/j.1365-2605.2011.01200.x] [Citation(s) in RCA: 126] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Male accessory gland infection (MAGI) has been identified among those diagnostic categories which have a negative impact on the reproductive function and fertility in males (Rowe et al., World Health Organization Manual for the Standardised Investigation and Diagnosis of the Infertile Couple, Cambridge University Press, Cambridge, 1993). MAGI is a hypernym which groups the following different clinical categories: prostatitis, prostate-vesiculitis and prostate-vesiculo-epididymitis. Some of the characteristics they share are: common diseases, mainly have a chronic course, rarely cause obstruction of the seminal pathways, can have an unpredictable intracanicular spread to one or more sexual accessory glands of the reproductive tract, as well as to one or both sides. In this review, we show that all components involving the inflammatory response (from the agents which first trigger it to each component of the inflammatory response dynamic) can deteriorate conventional and/or non-conventional sperm parameters arising from one or more of the following mechanisms: altered secretory function of the epididymis, seminal vesicles, and prostate which reduce the antioxidant properties or scavenging role of the seminal plasma; deterioration of spermatogenesis; and (unilateral or bilateral) organic or functional sub-obstruction of the seminal tract.
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Affiliation(s)
- S La Vignera
- Section of Endocrinology, Andrology and Internal Medicine and Master in Andrological, Human Reproduction and Biotechnology Sciences, Department of Internal Medicine and Systemic Diseases, University of Catania, Catania, Italy.
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29
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ROS in the aging male: Model diseases with ROS-related pathophysiology. Reprod Toxicol 2009; 28:167-71. [DOI: 10.1016/j.reprotox.2009.04.003] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2009] [Revised: 04/07/2009] [Accepted: 04/09/2009] [Indexed: 01/30/2023]
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30
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Marchetti P, Marchetti C. [Sperm apoptosis: myth or reality?]. ACTA ACUST UNITED AC 2009; 37:562-9. [PMID: 19464938 DOI: 10.1016/j.gyobfe.2009.04.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2009] [Accepted: 04/08/2009] [Indexed: 10/20/2022]
Abstract
Apoptosis has become a popular biologic concept, for many reasons. From embryonic development to adult tissues, apoptosis is necessary to maintain tissues homeostasis in most organ systems during organogenesis and in the adult. Human spermatogenetic epithelium is also concerned. Dysregulations of this process are involved in many pathologies (leukaemia, auto-immune diseases, etc...), and some forms of male infertility also. Apoptotic features have been found in human semen from infertile patients, and could become useful in order to appreciate semen quality, especially in Assisted Reproductive Technology (ART). Despite numerous studies, some questions remain, especially about meaning of apoptotic damages of spermatozoa.
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Affiliation(s)
- P Marchetti
- Centre de biopathologie, CHU de Lille, Lille, France
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