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Bryan ER, Redgrove KA, Mooney AR, Mihalas BP, Sutherland JM, Carey AJ, Armitage CW, Trim LK, Kollipara A, Mulvey PBM, Palframan E, Trollope G, Bogoevski K, McLachlan R, McLaughlin EA, Beagley KW. Chronic testicular Chlamydia muridarum infection impairs mouse fertility and offspring development†. Biol Reprod 2021; 102:888-901. [PMID: 31965142 PMCID: PMC7124966 DOI: 10.1093/biolre/ioz229] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2019] [Revised: 11/28/2019] [Accepted: 01/12/2020] [Indexed: 12/26/2022] Open
Abstract
With approximately 131 million new genital tract infections occurring each year, Chlamydia is the most common sexually transmitted bacterial pathogen worldwide. Male and female infections occur at similar rates and both cause serious pathological sequelae. Despite this, the impact of chlamydial infection on male fertility has long been debated, and the effects of paternal chlamydial infection on offspring development are unknown. Using a male mouse chronic infection model, we show that chlamydial infection persists in the testes, adversely affecting the testicular environment. Infection increased leukocyte infiltration, disrupted the blood:testis barrier and reduced spermiogenic cell numbers and seminiferous tubule volume. Sperm from infected mice had decreased motility, increased abnormal morphology, decreased zona-binding capacity, and increased DNA damage. Serum anti-sperm antibodies were also increased. When both acutely and chronically infected male mice were bred with healthy female mice, 16.7% of pups displayed developmental abnormalities. Female offspring of chronically infected sires had smaller reproductive tracts than offspring of noninfected sires. The male pups of infected sires displayed delayed testicular development, with abnormalities in sperm vitality, motility, and sperm-oocyte binding evident at sexual maturity. These data suggest that chronic testicular Chlamydia infection can contribute to male infertility, which may have an intergenerational impact on sperm quality.
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Affiliation(s)
- Emily R Bryan
- School of Biomedical Sciences and Institute of Health & Biomedical Innovation, Queensland University of Technology, Herston, Queensland, Australia
| | - Kate A Redgrove
- School of Environmental and Life Sciences, Faculty of Science, The University of Newcastle, University Drive, Callaghan, New South Wales, Australia
| | - Alison R Mooney
- School of Biomedical Sciences and Institute of Health & Biomedical Innovation, Queensland University of Technology, Herston, Queensland, Australia
| | - Bettina P Mihalas
- School of Environmental and Life Sciences, Faculty of Science, The University of Newcastle, University Drive, Callaghan, New South Wales, Australia
| | - Jessie M Sutherland
- School of Environmental and Life Sciences, Faculty of Science, The University of Newcastle, University Drive, Callaghan, New South Wales, Australia
| | - Alison J Carey
- School of Biomedical Sciences and Institute of Health & Biomedical Innovation, Queensland University of Technology, Herston, Queensland, Australia
| | - Charles W Armitage
- School of Biomedical Sciences and Institute of Health & Biomedical Innovation, Queensland University of Technology, Herston, Queensland, Australia.,Peter Goher Department of Immunobiology, King's College London, London, United Kingdom
| | - Logan K Trim
- School of Biomedical Sciences and Institute of Health & Biomedical Innovation, Queensland University of Technology, Herston, Queensland, Australia
| | - Avinash Kollipara
- School of Biomedical Sciences and Institute of Health & Biomedical Innovation, Queensland University of Technology, Herston, Queensland, Australia
| | - Peter B M Mulvey
- School of Biomedical Sciences and Institute of Health & Biomedical Innovation, Queensland University of Technology, Herston, Queensland, Australia
| | - Ella Palframan
- School of Biomedical Sciences and Institute of Health & Biomedical Innovation, Queensland University of Technology, Herston, Queensland, Australia
| | - Gemma Trollope
- School of Biomedical Sciences and Institute of Health & Biomedical Innovation, Queensland University of Technology, Herston, Queensland, Australia
| | - Kristofor Bogoevski
- Scientific Services, Histology Services, QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia
| | - Robert McLachlan
- Department of Obstetrics and Gynaecology, Hudson Institute of Medical Research, Monash Medical Centre, Monash University, Clayton, Victoria, Australia
| | - Eileen A McLaughlin
- School of Environmental and Life Sciences, Faculty of Science, The University of Newcastle, University Drive, Callaghan, New South Wales, Australia.,School of Science, Western Sydney University, Richmond, New South Wales, Australia.,School of Life Sciences, The University of Auckland, Auckland, New Zealand
| | - Kenneth W Beagley
- School of Biomedical Sciences and Institute of Health & Biomedical Innovation, Queensland University of Technology, Herston, Queensland, Australia
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Ali A, Mistry BV, Ahmed HA, Abdulla R, Amer HA, Prince A, Alazami AM, Alkuraya FS, Assiri A. Deletion of DDB1- and CUL4- associated factor-17 (Dcaf17) gene causes spermatogenesis defects and male infertility in mice. Sci Rep 2018; 8:9202. [PMID: 29907856 PMCID: PMC6003934 DOI: 10.1038/s41598-018-27379-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Accepted: 05/31/2018] [Indexed: 01/26/2023] Open
Abstract
DDB1– and CUL4–associated factor 17 (Dcaf17) is a member of DCAF family genes that encode substrate receptor proteins for Cullin-RING E3 ubiquitin ligases, which play critical roles in many cellular processes. To unravel the function of DCAF17, we performed expression profiling of Dcaf17 in different tissues of wild type mouse by qRT-PCR and generated Dcaf17 knockout mice by gene targeting. Expression profiling of Dcaf17 showed highest expression in testis. Analyses of Dcaf17 transcripts during post-natal development of testis at different ages displayed gradual increase in Dcaf17 mRNA levels with the age. Although Dcaf17 disruption did not have any effect on female fertility, Dcaf17 deletion led to male infertility due to abnormal sperm development. The Dcaf17−/− mice produced low number of sperm with abnormal shape and significantly low motility. Histological examination of the Dcaf17−/− testis revealed impaired spermatogenesis with presence of vacuoles and sloughed cells in the seminiferous tubules. Disruption of Dcaf17 caused asymmetric acrosome capping, impaired nuclear compaction and abnormal round spermatid to elongated spermatid transition. For the first time, these data indicate that DCAF17 is essential for spermiogenesis.
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Affiliation(s)
- Asmaa Ali
- Comparative Medicine Department, King Faisal Specialist Hospital and Research Centre, Riyadh, 11211, Saudi Arabia
| | - Bhavesh V Mistry
- Comparative Medicine Department, King Faisal Specialist Hospital and Research Centre, Riyadh, 11211, Saudi Arabia
| | - Hala A Ahmed
- Comparative Medicine Department, King Faisal Specialist Hospital and Research Centre, Riyadh, 11211, Saudi Arabia
| | - Razan Abdulla
- Comparative Medicine Department, King Faisal Specialist Hospital and Research Centre, Riyadh, 11211, Saudi Arabia
| | - Hassan A Amer
- Department of Biochemistry and Molecular Biology, Faculty of Veterinary Medicine, Cairo University, Giza, 12613, Egypt
| | - Abdelbary Prince
- Department of Biochemistry and Molecular Biology, Faculty of Veterinary Medicine, Cairo University, Giza, 12613, Egypt
| | - Anas M Alazami
- Department of Genetics, King Faisal Specialist Hospital and Research Centre, Riyadh, 11211, Saudi Arabia
| | - Fowzan S Alkuraya
- Department of Genetics, King Faisal Specialist Hospital and Research Centre, Riyadh, 11211, Saudi Arabia
| | - Abdullah Assiri
- Comparative Medicine Department, King Faisal Specialist Hospital and Research Centre, Riyadh, 11211, Saudi Arabia. .,College of Medicine, AlFaisal University, Riyadh, Saudi Arabia. .,Institute for Research and Medical Consultations, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia.
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Oehninger S. Clinical management of male infertility in assisted reproduction: ICSI and beyond. ACTA ACUST UNITED AC 2011; 34:e319-29. [PMID: 21651569 DOI: 10.1111/j.1365-2605.2011.01143.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The advent of in vitro fertilization and its augmentation with intracytoplasmic sperm injection (ICSI) has allowed a large number of couples suffering from moderate to severe male infertility, and also presenting with female pathologies, to achieve their reproductive dreams. Notwithstanding the existence of fundamental questions about the pathophysiological mechanisms leading to sperm dysfunction, and still unanswered concerns about health risks following ICSI, it appears that overall ICSI is safe and here to stay. Although on one hand ICSI possibly hampered advances of the knowledge in some areas of gamete biology and interaction, on the other it definitely gave impulse to studies designed to unveil the sperm contributions during and beyond fertilization, including the normalcy of the DNA/chromatin as well as molecular mechanisms of genetic/epigenetic control and nuclear organization status. In all, almost entering the fourth decade of assisted reproductive technologies, we should continue monitoring the safety of the technique and long-term development of offspring, whereas at the same time prioritizing areas of research addressing these fundamental questions.
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Affiliation(s)
- S Oehninger
- Department of Obstetrics and Gynecology, The Jones Institute for Reproductive Medicine, Eastern Virginia Medical School, Norfolk, VA 23507, USA.
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Apedaile AE, Garrett C, Liu DY, Clarke GN, Johnston SA, Baker HWG. Flow cytometry and microscopic acridine orange test: relationship with standard semen analysis. Reprod Biomed Online 2004; 8:398-407. [PMID: 15149562 DOI: 10.1016/s1472-6483(10)60923-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Improved prediction of male fertility requires advances in semen analysis. This study examined the reproducibility and independence of the flow cytometry acridine orange test (FCM-AOT) of sperm chromatin integrity as an assessment of semen quality. The study found that FCM-AOT results are not significantly affected by up to 6 h delay in semen preparation (n = 9) or contamination of semen with moderate concentrations of bacteria (<10(8)/ml E. coli or Staph. epidermidis, n = 14). The variation of replicate measurements within samples was low (%Abnormal alpha(t): SD = 1.4, 95%CI = 4.6, n = 25) and different samples from the same men were mostly within the range of measurement error (n = 35). FCM-AOT variables, in particular %Abnormal alpha(t), displayed significant correlations with motility (r = -0.557), vitality (r = -0.469) and morphology (r = -0.464, n = 201), which are similar in magnitude to those existing between the standard semen variables. Surprisingly, no correlation was found between %Abnormal alpha(t) and the microscopic acridine orange test (M-AOT) (n = 185), suggesting the FCM results are sensitive to a different aspect of sperm quality. In summary, this study confirms that although not totally independent of standard semen analysis or the M-AOT, it is found to be a robust, sensitive and reproducible measure of semen quality, representative of the individual.
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Affiliation(s)
- Anwyn E Apedaile
- Clinical Sciences Centre, Medical Research Council, Imperial College School of Medicine, Hammersmith Hospital, Du Cane Road, London W12 0NN, UK
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