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López-González I, Oseguera-López I, Castillo R, Darszon A. Influence of extracellular ATP on mammalian sperm physiology. Reprod Fertil Dev 2024; 36:RD23227. [PMID: 38870344 DOI: 10.1071/rd23227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Accepted: 05/23/2024] [Indexed: 06/15/2024] Open
Abstract
In addition to its central role in cellular metabolism, adenosine 5'-triphosphate (ATP) is an important extracellular signalling molecule involved in various physiological processes. In reproduction, extracellular ATP participates in both autocrine and paracrine paths regulating gametogenesis, gamete maturation and fertilisation. This review focusses on how extracellular ATP modulates sperm physiology with emphasis on the mammalian acrosome reaction. The presence of extracellular ATP in the reproductive tract is primarily determined by the ion channels and transporters that influence its movement within the cells comprising the tract. The main targets of extracellular ATP in spermatozoa are its own transporters, particularly species-specific sperm purinergic receptors. We also discuss notable phenotypes from knock-out mouse models and human Mendelian inheritance related to ATP release mechanisms, along with immunological, proteomic, and functional observations regarding sperm purinergic receptors and their involvement in sperm signalling.
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Affiliation(s)
- I López-González
- Departamento de Genética del Desarrollo y Fisiología Molecular, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Av. Universidad # 2001, Col. Chamilpa, Cuernavaca, Morelos CP 62210, México
| | - I Oseguera-López
- Departamento de Genética del Desarrollo y Fisiología Molecular, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Av. Universidad # 2001, Col. Chamilpa, Cuernavaca, Morelos CP 62210, México
| | - R Castillo
- Departamento de Genética del Desarrollo y Fisiología Molecular, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Av. Universidad # 2001, Col. Chamilpa, Cuernavaca, Morelos CP 62210, México
| | - A Darszon
- Departamento de Genética del Desarrollo y Fisiología Molecular, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Av. Universidad # 2001, Col. Chamilpa, Cuernavaca, Morelos CP 62210, México
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Minas A, de Oliveira Rodrigues L, Camargo M, Bertolla RP. Insight into inflammation involvement in varicocele: A narrative review. Am J Reprod Immunol 2023; 90:e13786. [PMID: 37881120 DOI: 10.1111/aji.13786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 09/07/2023] [Accepted: 09/29/2023] [Indexed: 10/27/2023] Open
Abstract
BACKGROUND Varicocele is one of the main causes of male infertility. Although the pathophysiology mechanism of varicocele is very well described and understood, there are some unanswered questions that remains unknown. Some studies have previously described the state of testicular inflammation and sperm in animal models, especially the mouse model, and the seminal plasma of men with varicocele, with or without changes in semen parameters. METHODS OF STUDY This review intended to verify the role of inflammatory mechanism in varicocele, using clinical studies as well as animal model studies on the effect of inflammation caused by varicocele on the function of testicular somatic and germ cells. RESULTS In-vivo studies confirmed whether anti-inflammatory molecules could treat the semen of men with varicocele and rats with varicocele. The use of different anti-inflammatory agents in mouse model studies provided a new perspective for future clinical studies to investigate the effect of concurrent treatment with surgery to improve surgical outcomes. CONCLUSION Similar to animal model studies, previously conducted clinical trials have demonstrated the effectiveness of anti-inflammatory therapy in varicocele patients. However, clinical trials using anti-inflammatory are needed to be conducted agents to evaluate different aspects of this therapeutical approach in varicocele patients.
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Affiliation(s)
- Aram Minas
- Department of Surgery, Division of Urology, Human Reproduction Section, São Paulo Federal University, São Paulo, Brazil
| | - Larissa de Oliveira Rodrigues
- Department of Surgery, Division of Urology, Human Reproduction Section, São Paulo Federal University, São Paulo, Brazil
| | - Mariana Camargo
- Department of Surgery, Division of Urology, Human Reproduction Section, São Paulo Federal University, São Paulo, Brazil
| | - Ricardo Pimenta Bertolla
- Department of Surgery, Division of Urology, Human Reproduction Section, São Paulo Federal University, São Paulo, Brazil
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Qiu Q, Chen J, Xu N, Zhou X, Ye C, Liu M, Liu Z. Effects of autonomic nervous system disorders on male infertility. Front Neurol 2023; 14:1277795. [PMID: 38125834 PMCID: PMC10731586 DOI: 10.3389/fneur.2023.1277795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Accepted: 09/29/2023] [Indexed: 12/23/2023] Open
Abstract
The male reproductive functions are largely regulated by the autonomic nervous system. Male sexual behavior and fertility primarily depend on the normal function of the higher neural centers related to the autonomic nervous system, the hypothalamic-pituitary-gonadal axis, the autonomic nervous components within the spinal cord and spinal nerves, and certain somatic nerves in the pelvic floor. In this review article, we will summarize the role of the autonomic nervous system in regulating male reproductive capabilities and fertility, its impact on male infertility under abnormal conditions, including the role of drug-induced autonomic nervous dysfunctions on male infertility. The main purpose of this article was to provide an overview of the effects of autonomic nervous dysfunction on male reproductive function and shed light on the potential therapeutic target for male infertility.
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Affiliation(s)
- Qixiang Qiu
- Center for Molecular Pathology, The First Affiliated Hospital, Gannan Medical University, Ganzhou, Jiangxi, China
- Department of Basic Medicine, Gannan Medical University, Ganzhou, Jiangxi, China
| | - Jincong Chen
- Center for Reproductive Medicine, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, China
| | - Nengquan Xu
- Department of Basic Medicine, Gannan Medical University, Ganzhou, Jiangxi, China
| | - Xiaolong Zhou
- Department of Basic Medicine, Gannan Medical University, Ganzhou, Jiangxi, China
| | - Chenlian Ye
- Department of Gynaecology and Obstetrics, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, China
| | - Min Liu
- Center for Reproductive Medicine, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, China
| | - Zhaoxia Liu
- Center for Reproductive Medicine, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, China
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Minas A, Costa LVS, Miyazaki MA, Antoniassi MP. Insight toward inflammasome complex contribution to male infertility. Am J Reprod Immunol 2023; 90:e13734. [PMID: 37491934 DOI: 10.1111/aji.13734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 05/16/2023] [Accepted: 06/05/2023] [Indexed: 07/27/2023] Open
Abstract
During the last decades, a wide range of factors involved in the physiopathology of male infertility disease have been discussed. The inflammation role in some of the main infertility-related diseases has been studied, such as varicocele, spinal cord injury and obesity. Inflammation is the main response of the immune system to infection or cell damage, leading to intense inflammatory cytokine release during the loss of homeostasis. One of the first steps toward pro-inflammatory cytokines release is the recognition of dangerous signals by the immune cells, including pathogen-associated molecular patterns (PAMPs) and damage-associated molecular patterns (DAMPs). These molecules can activate an important multiprotein complex, called inflammasome. Although these complexes have been studied during the last decades, their participation in male infertility has gained attention recently. Considering the inflammasome complex's high potential to be targeted for drug therapy, this review tries to shed light on current literature. Therefore, in the current review paper, we aimed to discuss the inflammasome complex activation, involvement in different male infertility conditions, and localization in the male reproductive tract.
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Affiliation(s)
- Aram Minas
- Department of Surgery, Division of Urology, Human Reproduction Section, São Paulo Federal University, São Paulo, Brazil
| | - Lucas Vasconcelos Soares Costa
- Laboratory of Ontogeny of Lymphocytes, Departamento de Microbiologia, Imunologia e Parasitologia, Universidade Federal de São Paulo, Escola Paulista de Medicina, São Paulo, Brazil
| | - Mika Alexia Miyazaki
- Department of Surgery, Division of Urology, Human Reproduction Section, São Paulo Federal University, São Paulo, Brazil
| | - Mariana Pereira Antoniassi
- Department of Surgery, Division of Urology, Human Reproduction Section, São Paulo Federal University, São Paulo, Brazil
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Fallah Asl H, Jalali Mashayekhi F, Zendedel A, Baazm M. The time course of nod-like receptor family pyrin domain containing 3 inflammasome complex expressions in the testis tissue of an experimental varicocele rat model: An experimental study. Int J Reprod Biomed 2023; 21:577-584. [PMID: 37727396 PMCID: PMC10505694 DOI: 10.18502/ijrm.v21i7.13895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 04/04/2023] [Accepted: 06/18/2023] [Indexed: 09/21/2023] Open
Abstract
Background Varicocele is characterized by abnormal dilation of the testicular vein, which results in hypoxia, the accumulation of reactive oxygen species, and the production of proinflammatory cytokines. It seems that a group of cytosolic receptors named nod-like receptor family, pyrin domain containing 3 (NLRP3) inflammasome, is activated and involved in the pathogenesis of varicocele. Objective We aim to determine the time course of NLRP3 inflammasome expression in the testis tissue following varicocele induction. Materials and Methods In this experimental study, 36 adult Wistar rats (8 wk, 200-250 gr) were used. For the varicocele induction, the left renal vein was partially ligated. The mRNA levels of NLRP3, apoptosis-associated speck-like protein containing a caspase recruitment domain, and caspase-1 were evaluated by real-time polymerase chain reaction at 1, 2, 4, 8, and 12 wk after varicocele induction. Results Results showed that the gene expression of NLRP3 inflammasome component including NLRP3, apoptosis-associated speck-like protein containing a caspase recruitment domain, and caspase-1 did not alter during week 1, 2, 4, and 8 after operation (p = 0.09). 12 wk after varicocele induction, gene expression levels were significantly up-regulated (p = 0.02). Conclusion Our data provides clear evidence that varicocele stimulates inflammasome activation in the testis tissue 12 wk after the operation, and this time is required for investigating NLRP3 activity in the varicocele rat model.
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Affiliation(s)
- Hamideh Fallah Asl
- Students Research Committee, Arak University of Medical Sciences, Arak, Iran
| | - Farideh Jalali Mashayekhi
- Department of Genetics and Biochemistry, School of Medicine, Arak University of Medical Sciences, Arak, Iran
| | - Adib Zendedel
- Institute of Neuroanatomy, Uniklinik RWTH Aachen, 52074 Aachen, Germany
| | - Maryam Baazm
- Department of Anatomy, School of Medicine, Arak University of Medical Sciences, Arak, Iran
- Molecular and Medicine Research Center, Arak University of Medical Sciences, Arak, Iran
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Zizzo J, Gater DR, Hough S, Ibrahim E. Sexuality, Intimacy, and Reproductive Health after Spinal Cord Injury. J Pers Med 2022; 12:jpm12121985. [PMID: 36556205 PMCID: PMC9781084 DOI: 10.3390/jpm12121985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 11/28/2022] [Accepted: 11/30/2022] [Indexed: 12/04/2022] Open
Abstract
Spinal cord injury (SCI) is a life-altering event often accompanied by a host of anxiety-provoking questions and concerns in the minds of affected individuals. Questions regarding the ability to resume sexual activity, partner's satisfaction as well as the ability to have biological children are just a few of the unknowns facing patients following the devastating reality that is SCI. As a result of advances in SCI research over the last few decades, providers now have the knowledge and tools to address many of these concerns in an evidence-based and patient-centered approach. SCI can impair multiple components involved in sexual function, including libido, achieving and maintaining an erection, ejaculation, and orgasm. Many safe and effective fertility treatments are available to couples affected by SCI. Finally, learning to redefine one's self-image, reinforce confidence and self-esteem, and feel comfortable communicating are equally as important as understanding functionality in regaining quality of life after SCI. Thus, this review aims to highlight the current state of SCI research relating to sexual function, reproductive health, and the search for meaning.
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Affiliation(s)
- John Zizzo
- Desai Sethi Urology Institute, Miller School of Medicine, University of Miami, Miami, FL 33136, USA
| | - David R. Gater
- Department of Physical Medicine & Rehabilitation, Miller School of Medicine, University of Miami, Miami, FL 33136, USA
| | - Sigmund Hough
- Department of Psychiatry, Harvard Medical School, Harvard University, Boston, MA 02215, USA
- Department of Psychiatry, Boston University School of Medicine, Boston University, Boston, MA 02118, USA
| | - Emad Ibrahim
- Desai Sethi Urology Institute, Miller School of Medicine, University of Miami, Miami, FL 33136, USA
- The Miami Project to Cure Paralysis, Miller School of Medicine, University of Miami, Miami, FL 33136, USA
- Correspondence:
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The NLRP3 inflammasome: molecular activation and regulation in spermatogenesis and male infertility; a systematic review. Basic Clin Androl 2022; 32:8. [PMID: 35637440 PMCID: PMC9150048 DOI: 10.1186/s12610-022-00157-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Accepted: 05/05/2022] [Indexed: 11/21/2022] Open
Abstract
Background Infertility related to varicocele, infections, metabolic dysfunctions, oxidative stress and environmental toxicants is also associated with inflammatory processes that ultimately lead to the activation of the inflammasome pathway (IP). IP is classically activated by DAMPs, MAMPs or LAMPs, which stand for Damage-, Microbe- or Lifestyle-Associated Molecular Patterns, respectively. The most important player in IP activation is the NLRP3 (NOD[Nuclear oligomerization domain]-, LRR[Leucine rich repeat]- and pyrin domain-containing protein 3) which functions as an intracellular sensor of D/M/L-AMPs resulting in activation of caspase-1, promotion of apoptosis, pyroptosis and generation of inflammatory cytokines. This review addresses the question of whether IP activation might be associated with male infertility situations. Results & conclusions We conducted a systematic review of articles published in the Google Scholar, and PubMed databases through October 2021. It turns out that inflammasome activation and its consequences including cytokine storms, apoptosis and pyroptosis could be associated with the reduced sperm count as well as the structural and functional sperm defects recorded in several situations associated with male infertility suggesting that anti-inflammatory therapeutic strategies could be possibly considered to restore male fertility in future research.
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8
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Original investigations into the diagnosis and treatment of ejaculatory dysfunction. Fertil Steril 2018; 110:66-67. [PMID: 29933922 DOI: 10.1016/j.fertnstert.2018.04.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Accepted: 04/18/2018] [Indexed: 11/22/2022]
Abstract
The method employed is simple, harmless and-above all-not objectionable to patients. In cases such as those described, it is preferable to other therapeutic measures, which are too often both prolonged and useless. -Schellen T. Induction of ejaculation by electrovibration. Fertil Steril 1968;19(4):566-9. Retrograde ejaculation was associated with stricture of the urethra of long standing. A tight stricture may allow passage of urine but not semen, which is more viscid. -Girgis SM, Etriby A, El-Hefnawy H, Kahil S. Aspermia: a survey of 49 cases. Fertil Steril 1968;19(4):580-8.
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Anderson R, Moses R, Lenherr S, Hotaling JM, Myers J. Spinal cord injury and male infertility-a review of current literature, knowledge gaps, and future research. Transl Androl Urol 2018; 7:S373-S382. [PMID: 30159244 PMCID: PMC6087847 DOI: 10.21037/tau.2018.04.12] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Accepted: 04/04/2018] [Indexed: 12/15/2022] Open
Abstract
Spinal cord injury (SCI) affects nearly half a million new patients worldwide, with 17,700 in the US each year, and disproportionately impacts young males of reproductive age. Almost every aspect of male reproduction is affected by SCI, resulting in: erectile, endocrine and sexual dysfunction, decreased sperm motility despite an often-normal count, and abnormal semen emission and ejaculation. The aim of this review is to focus on how SCI impacts testicular spermatogenesis, sperm function, semen quality, and overall fecundity while discussing what is not known, and future avenues for research.
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Affiliation(s)
- Ross Anderson
- Department of Surgery, Division of Urology, University of Utah, Salt Lake City, Utah, USA
| | - Rachel Moses
- Department of Surgery, Division of Urology, University of Utah, Salt Lake City, Utah, USA
| | - Sara Lenherr
- Department of Surgery, Division of Urology, University of Utah, Salt Lake City, Utah, USA
| | - James M Hotaling
- Department of Surgery, Division of Urology, University of Utah, Salt Lake City, Utah, USA
| | - Jeremy Myers
- Department of Surgery, Division of Urology, University of Utah, Salt Lake City, Utah, USA
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Camargo M, Intasqui P, Bertolla RP. Understanding the seminal plasma proteome and its role in male fertility. Basic Clin Androl 2018; 28:6. [PMID: 29881623 PMCID: PMC5985566 DOI: 10.1186/s12610-018-0071-5] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Accepted: 03/08/2018] [Indexed: 01/10/2023] Open
Abstract
Seminal plasma is a complex fluid comprised of secretions from the seminal vesicles, the prostate, bulbourethral glands and from the seminiferous tubule lumen / epididymides / vasa deferentia. While it has been established that seminal plasma serves not only as a medium to carry, protect, and nourish sperm after ejaculation up to fertilization, but also as a functional modulator of sperm function, there is still a need to properly characterize the molecular make-up of seminal plasma in fertile men, and to understand how this is altered in different causes of male infertility. The main purpose of this manuscript was to review articles that studied the human seminal plasma proteome, ranging from characterizing a fertile seminal plasma proteomic map to studies comparing seminal plasma from fertile and infertile men, and comparing seminal plasma of fertile or normozoospermic men to a diverse range of biological causes for male infertility. Finally, this review has focused on the association between semen and sperm functional quality and the seminal plasma proteome, in order to demonstrate cellular and molecular mechanisms of male infertility. Due to the untargeted nature of the majority of the studies presented in this review, and to the diverse range of techniques utilized to study the seminal plasma proteomic composition, many differentially expressed proteins were observed. However, in general, it seems that there is a seminal plasma proteome associated to male fertility, and that different biological conditions or cellular phenotypes shift its pathways away from its homeostatic condition to altered energy production pathways. Moreover, it seems there is an inflammatory component to the seminal plasma of infertile men. In conclusion, there are a number of studies focused on the proteomic composition of human seminal plasma; downstream confirmatory studies will help to understand specific pathways of infertility in different biological conditions.
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Affiliation(s)
- Mariana Camargo
- 1Department of Surgery, Division of Urology, Universidade Federal de São Paulo, R Embau, 231, Sao Paulo, SP 04039-060 Brazil
| | - Paula Intasqui
- 1Department of Surgery, Division of Urology, Universidade Federal de São Paulo, R Embau, 231, Sao Paulo, SP 04039-060 Brazil
| | - Ricardo Pimenta Bertolla
- 1Department of Surgery, Division of Urology, Universidade Federal de São Paulo, R Embau, 231, Sao Paulo, SP 04039-060 Brazil.,2Hospital São Paulo, São Paulo, Brazil
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Thomas FP, Murphy C. Informing the knowledge economy: Options for extending the reach of research. J Spinal Cord Med 2018; 41:253. [PMID: 29630492 PMCID: PMC6055956 DOI: 10.1080/10790268.2018.1453699] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
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Falavigna A, da Silva PG, Conzatti LP, Corbellini LM, Cagliari CS, Pasqualotto FF. Improving Sperm Viability After Spinal Cord Injury Using Hyperbaric Therapy. World Neurosurg 2018; 113:e232-e238. [PMID: 29432942 DOI: 10.1016/j.wneu.2018.01.216] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Revised: 01/30/2018] [Accepted: 01/31/2018] [Indexed: 11/15/2022]
Abstract
BACKGROUND Infertility is one of many complications of spinal cord injury (SCI) in male patients, who are often at the peak of their reproductive life. This study evaluated effects of hyperbaric therapy (HT) on quality of sperm of rats with SCI and correlated the findings with histologic analysis of the testicles. METHODS This experimental study comprised 18 rats that were submitted to SCI with a MASCIS Impactor and randomly allocated to either a HT or a control group. Testicular biopsies were performed on the first and 28th day of the study; 4 parameters were evaluated: concentration of sperm per mL, number of round cells per field, number of inflammatory cells per field (peroxidase [Endtz] test), and sperm viability (hypo-osmotic swelling test). RESULTS There was no difference in sperm concentration between the HT group (P = 0.41) and control group (P = 0.74) during 28 days. From day 1 to day 28, sperm viability decreased twice as much in the control group (P = 0.001) compared with the HT group (P = 0.017). There was no difference between the groups in mean sperm concentration and number of round and inflammatory cells. On the first day, there was no difference in sperm viability between groups. There was a significantly higher (P = 0.001) percentage of viable sperm in the HT group (86.8 ± 5.6) compared with the control group (48.8 ± 21.8) on day 28. CONCLUSIONS SCI increased the number of round and inflammatory cells and diminished sperm viability in both groups. HT promoted greater sperm viability in rats with SCI.
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Affiliation(s)
- Asdrubal Falavigna
- Department of Neurosurgery, University of Caxias do Sul, Caxias do Sul, Rio Grande do Sul, Brazil.
| | - Pedro G da Silva
- Department of Neurosurgery, University of Caxias do Sul, Caxias do Sul, Rio Grande do Sul, Brazil
| | - Lucas P Conzatti
- Department of Neurosurgery, University of Caxias do Sul, Caxias do Sul, Rio Grande do Sul, Brazil
| | - Louise M Corbellini
- Department of Neurosurgery, University of Caxias do Sul, Caxias do Sul, Rio Grande do Sul, Brazil
| | - Caroline S Cagliari
- Department of Neurosurgery, University of Caxias do Sul, Caxias do Sul, Rio Grande do Sul, Brazil
| | - Fabio F Pasqualotto
- Department of Neurosurgery, University of Caxias do Sul, Caxias do Sul, Rio Grande do Sul, Brazil
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