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Hardneck F, de Villiers C, Maree L. Effect of Copper Sulphate and Cadmium Chloride on Non-Human Primate Sperm Function In Vitro. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:6200. [PMID: 34201151 PMCID: PMC8228149 DOI: 10.3390/ijerph18126200] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Revised: 05/18/2021] [Accepted: 05/21/2021] [Indexed: 01/04/2023]
Abstract
In order to address the large percentage of unexplained male infertility in humans, more detailed investigations using sperm functional tests are needed to identify possible causes for compromised fertility. Since many environmental and lifestyle factors might be contributing to infertility, future studies aiming to elucidate the effect of such factors on male fertility will need the use of appropriate research models. The current study aimed to assess the effects of two heavy metals, namely copper sulphate, and cadmium chloride, on non-human primate (NHP) sperm function in order to establish the possibility of using these primate species as models for reproductive studies. Our combined results indicated that the functionality of NHP spermatozoa is inhibited by the two heavy metals investigated. After in vitro exposure, detrimental effects, and significant lowered values (p < 0.05) were obtained for sperm motility, viability and vitality, acrosome intactness, and hyperactivation. These metals, at the tested higher concentrations, therefore, have the ability to impair sperm quality thereby affecting sperm fertilizing capability in both humans and NHPs.
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Affiliation(s)
- Farren Hardneck
- Department of Medical Bioscience, University of the Western Cape, Private Bag X17, Bellville 7535, South Africa;
| | - Charon de Villiers
- PUDAC-Delft Animal Facility, South African Medical Research Council, Cape Town 7505, South Africa;
| | - Liana Maree
- Department of Medical Bioscience, University of the Western Cape, Private Bag X17, Bellville 7535, South Africa;
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Hufnagel D, Goetz TG, Hu Z, Nyachieo A, D'Hooghe T, Fazleabas A, Duleba A, Krikun G, Taylor HS, Lockwood CJ. Icon immunoconjugate treatment results in regression of red lesions in a non-human primate (Papio anubis) model of endometriosis. Reprod Biol 2018; 18:109-114. [PMID: 29422377 DOI: 10.1016/j.repbio.2018.01.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Revised: 01/20/2018] [Accepted: 01/26/2018] [Indexed: 12/24/2022]
Abstract
Endometriosis is a common condition in reproductive-aged women characterized by ectopic endometrial lesions of varied appearance, including red, white, blue, black or powder burn coloration, which contribute to chronic pain and infertility. The immunoconjugate molecule (Icon) targets Tissue Factor, a transmembrane receptor for Factor VII/VIIa that is aberrantly expressed in the endothelium supporting ectopic endometrial tissue. Icon has been shown to cause regression of endometriosis in a murine model of disease but prior to this study had not been tested in non-human primates. This study evaluated Icon as a novel treatment for endometriosis in non-human primates (Papio anubis) using an adenoviral vector (AdIcon) delivery system. Female baboons (n = 15) underwent surgical induction of endometriosis. After laparoscopic confirmation of endometriosis lesions 6-weeks post-surgery, the treatment group (n = 7) received weekly intraperitoneal injections of viral particles carrying the sequence for Icon, resulting in expression of the protein, while the control group (n = 8) received no treatment. Icon preferentially reduced the number and volume of red vascularized lesions. Icon may present a novel treatment for endometriosis by degrading red vascularized lesions, likely by targeting tissue factor aberrantly expressed in the lesion vasculature.
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Affiliation(s)
- Demetra Hufnagel
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale School of Medicine, New Haven, CT, United States
| | - Teddy G Goetz
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale School of Medicine, New Haven, CT, United States
| | - Zhiwei Hu
- Department of Surgery, The Ohio State University College of Medicine, Columbus, OH, United States
| | - Atunga Nyachieo
- Department of Reproductive Health and Non-Communicable Diseases, Institute of Primate Research, Nairobi, Kenya
| | - Thomas D'Hooghe
- Department of Development and Regeneration, Group Biomedical Sciences, KU Leuven (University of Leuven), Campus Gasthuisberg, Leuven, Belgium
| | - Asgerally Fazleabas
- Department of Obstetrics, Gynecology, and Reproductive Biology, Michigan State University, Grand Rapids, MI, United States
| | - Antoni Duleba
- Department of Reproductive Medicine, University of California San Diego, San Diego, CA, United States
| | - Graciela Krikun
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale School of Medicine, New Haven, CT, United States.
| | - Hugh S Taylor
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale School of Medicine, New Haven, CT, United States
| | - Charles J Lockwood
- Department of Obstetrics and Gynecology, Morsani College of Medicine, University of South Florida, Tampa, FL, United States
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Dancet E, Brännström M, Brasky K, Chai D, Chan A, Conn P, Else J, Falconer H, Fazleabas A, Farah I, Goddeeris B, Golos T, Hau J, Hearn J, Kariuki T, Kyama C, Lebovic D, Mwenda J, Ndung'u J, Nyachieo A, Parker J, Slayden OD, Stouffer R, Strauss J, Taylor H, Vanderpoel S, Westergaard J, Zelinski M, D'Hooghe T. The Role of Scientists and Clinicians in Raising Public Support for Animal Research in Reproductive Biology and Medicine1. Biol Reprod 2013; 88:33. [DOI: 10.1095/biolreprod.112.105908] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
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