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Reyes-Serratos E, Ramielle L. Santos J, Puttagunta L, Lewis SJ, Watanabe M, Gonshor A, Buck R, Befus AD, Marcet-Palacios M. Identification and characterization of calcium binding protein, spermatid-associated 1 (CABS1)# in selected human tissues and fluids. PLoS One 2024; 19:e0301855. [PMID: 38753592 PMCID: PMC11098423 DOI: 10.1371/journal.pone.0301855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 03/22/2024] [Indexed: 05/18/2024] Open
Abstract
Calcium binding protein, spermatid associated 1 (CABS1) is a protein most widely studied in spermatogenesis. However, mRNA for CABS1 has been found in numerous tissues, albeit with little information about the protein. Previously, we identified CABS1 mRNA and protein in human salivary glands and provided evidence that in humans CABS1 contains a heptapeptide near its carboxyl terminus that has anti-inflammatory activities. Moreover, levels of an immunoreactive form of CABS1 were elevated in psychological stress. To more fully characterize human CABS1 we developed additional polyclonal and monoclonal antibodies to different sections of the protein and used these antibodies to characterize CABS1 in an overexpression cell lysate, human salivary glands, saliva, serum and testes using western blot, immunohistochemistry and bioinformatics approaches exploiting the Gene Expression Omnibus (GEO) database. CABS1 appears to have multiple molecular weight forms, consistent with its recognition as a structurally disordered protein, a protein with structural plasticity. Interestingly, in human testes, its cellular distribution differs from that in rodents and pigs, and includes Leydig cells, primary spermatogonia, Sertoli cells and developing spermatocytes and spermatids, Geodata suggests that CABS1 is much more widely distributed than previously recognized, including in the urogenital, gastrointestinal and respiratory tracts, as well as in the nervous system, immune system and other tissues. Much remains to be learned about this intriguing protein.
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Affiliation(s)
- Eduardo Reyes-Serratos
- Alberta Respiratory Centre, University of Alberta, Edmonton, Alberta, Canada
- Division of Pulmonary Medicine, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Joy Ramielle L. Santos
- Alberta Respiratory Centre, University of Alberta, Edmonton, Alberta, Canada
- Division of Pulmonary Medicine, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Lakshmi Puttagunta
- Alberta Respiratory Centre, University of Alberta, Edmonton, Alberta, Canada
- Department of Laboratory Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Stephen J. Lewis
- Departments of Pediatrics and Pharmacology, Rainbow Babies and Children’s Hospital, Case Western Reserve University, School of Medicine, Cleveland, Ohio, United States of America
| | - Mechiko Watanabe
- Departments of Pediatrics and Pharmacology, Rainbow Babies and Children’s Hospital, Case Western Reserve University, School of Medicine, Cleveland, Ohio, United States of America
- Division of Pediatric Cardiology, Department of Pediatrics, Rainbow Babies and Children’s Hospital, Case Western Reserve University, School of Medicine, Cleveland, Ohio, United States of America
| | | | - Robert Buck
- GB Diagnostics, Montreal, Quebec, Canada
- GB Diagnostics, Albuquerque, New Mexico, United States of America
| | - A. Dean Befus
- Alberta Respiratory Centre, University of Alberta, Edmonton, Alberta, Canada
- Division of Pulmonary Medicine, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Marcelo Marcet-Palacios
- Alberta Respiratory Centre, University of Alberta, Edmonton, Alberta, Canada
- Northern Alberta Institute of Technology, Edmonton, Alberta, Canada
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2
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Hitit M, Kaya A, Memili E. Sperm long non-coding RNAs as markers for ram fertility. Front Vet Sci 2024; 11:1337939. [PMID: 38799722 PMCID: PMC11117017 DOI: 10.3389/fvets.2024.1337939] [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: 11/13/2023] [Accepted: 04/08/2024] [Indexed: 05/29/2024] Open
Abstract
It is critical in sheep farming to accurately estimate ram fertility for maintaining reproductive effectiveness and for production profitability. However, there is currently a lack of reliable biomarkers to estimate semen quality and ram fertility, which is hindering advances in animal science and technology. The objective of this study was to uncover long non-coding RNAs (lncRNAs) in sperm from rams with distinct fertility phenotypes. Mature rams were allocated into two groups: high and low fertility (HF; n = 31; 94.5 ± 2.8%, LF; n = 25; 83.1 ± 5.73%; P = 0.028) according to the pregnancy rates sired by the rams (average pregnancy rate; 89.4 ± 7.2%). Total RNAs were isolated from sperm of the highest- and lowest-fertility rams (n = 4, pregnancy rate; 99.2 ± 1.6%, and 73.6 ± 4.4%, respectively) followed by next-generation sequencing of the transcripts. We uncovered 11,209 lncRNAs from the sperm of rams with HF and LF. In comparison to each other, there were 93 differentially expressed (DE) lncRNAs in sperm from the two distinct fertility phenotypes. Of these, 141 mRNAs were upregulated and 134 were downregulated between HF and LF, respectively. Genes commonly enriched for 9 + 2 motile cilium and sperm flagellum were ABHD2, AK1, CABS1, ROPN1, SEPTIN2, SLIRP, and TEKT3. Moreover, CABS1, CCDC39, CFAP97D1, ROPN1, SLIRP, TEKT3, and TTC12 were commonly enriched in flagellated sperm motility and sperm motility. Differentially expressed mRNAs were enriched in the top 16 KEGG pathways. Targets of the differentially expressed lncRNAs elucidate functions in cis and trans manner using the genetic context of the lncRNA locus, and lncRNA sequences revealed 471 mRNAs targets of 10 lncRNAs. This study illustrates the existence of potential lncRNA biomarkers that can be implemented in analyzing the quality of ram sperm and determining the sperm fertility and is used in breeding soundness exams for precision livestock farming to ensure food security on a global scale.
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Affiliation(s)
- Mustafa Hitit
- Department of Genetics, Faculty of Veterinary Medicine, Kastamonu University, Kastamonu, Türkiye
- College of Agriculture, Food and Natural Resources, Cooperative Agricultural Research Center, Prairie View A&M University, Prairie View, TX, United States
| | - Abdullah Kaya
- Department of Animal and Dairy Sciences, College of Agricultural and Life Sciences, University of Wisconsin–Madison, Madison, WI, United States
| | - Erdogan Memili
- College of Agriculture, Food and Natural Resources, Cooperative Agricultural Research Center, Prairie View A&M University, Prairie View, TX, United States
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3
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Dementieva NV, Dysin AP, Shcherbakov YS, Nikitkina EV, Musidray AA, Petrova AV, Mitrofanova OV, Plemyashov KV, Azovtseva AI, Griffin DK, Romanov MN. Risk of Sperm Disorders and Impaired Fertility in Frozen-Thawed Bull Semen: A Genome-Wide Association Study. Animals (Basel) 2024; 14:251. [PMID: 38254422 PMCID: PMC10812825 DOI: 10.3390/ani14020251] [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: 12/16/2023] [Revised: 01/08/2024] [Accepted: 01/11/2024] [Indexed: 01/24/2024] Open
Abstract
Cryopreservation is a widely used method of semen conservation in animal breeding programs. This process, however, can have a detrimental effect on sperm quality, especially in terms of its morphology. The resultant sperm disorders raise the risk of reduced sperm fertilizing ability, which poses a serious threat to the long-term efficacy of livestock reproduction and breeding. Understanding the genetic factors underlying these effects is critical for maintaining sperm quality during cryopreservation, and for animal fertility in general. In this regard, we performed a genome-wide association study to identify genomic regions associated with various cryopreservation sperm abnormalities in Holstein cattle, using single nucleotide polymorphism (SNP) markers via a high-density genotyping assay. Our analysis revealed a significant association of specific SNPs and candidate genes with absence of acrosomes, damaged cell necks and tails, as well as wrinkled acrosomes and decreased motility of cryopreserved sperm. As a result, we identified candidate genes such as POU6F2, LPCAT4, DPYD, SLC39A12 and CACNB2, as well as microRNAs (bta-mir-137 and bta-mir-2420) that may play a critical role in sperm morphology and disorders. These findings provide crucial information on the molecular mechanisms underlying acrosome integrity, motility, head abnormalities and damaged cell necks and tails of sperm after cryopreservation. Further studies with larger sample sizes, genome-wide coverage and functional validation are needed to explore causal variants in more detail, thereby elucidating the mechanisms mediating these effects. Overall, our results contribute to the understanding of genetic architecture in cryopreserved semen quality and disorders in bulls, laying the foundation for improved animal reproduction and breeding.
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Affiliation(s)
- Natalia V. Dementieva
- Russian Research Institute of Farm Animal Genetics and Breeding—Branch of the L. K. Ernst Federal Research Centre for Animal Husbandry, Pushkin, 196601 St. Petersburg, Russia; (A.P.D.); (Y.S.S.); (E.V.N.); (A.A.M.); (A.V.P.); (O.V.M.); (A.I.A.)
| | - Artem P. Dysin
- Russian Research Institute of Farm Animal Genetics and Breeding—Branch of the L. K. Ernst Federal Research Centre for Animal Husbandry, Pushkin, 196601 St. Petersburg, Russia; (A.P.D.); (Y.S.S.); (E.V.N.); (A.A.M.); (A.V.P.); (O.V.M.); (A.I.A.)
| | - Yuri S. Shcherbakov
- Russian Research Institute of Farm Animal Genetics and Breeding—Branch of the L. K. Ernst Federal Research Centre for Animal Husbandry, Pushkin, 196601 St. Petersburg, Russia; (A.P.D.); (Y.S.S.); (E.V.N.); (A.A.M.); (A.V.P.); (O.V.M.); (A.I.A.)
| | - Elena V. Nikitkina
- Russian Research Institute of Farm Animal Genetics and Breeding—Branch of the L. K. Ernst Federal Research Centre for Animal Husbandry, Pushkin, 196601 St. Petersburg, Russia; (A.P.D.); (Y.S.S.); (E.V.N.); (A.A.M.); (A.V.P.); (O.V.M.); (A.I.A.)
| | - Artem A. Musidray
- Russian Research Institute of Farm Animal Genetics and Breeding—Branch of the L. K. Ernst Federal Research Centre for Animal Husbandry, Pushkin, 196601 St. Petersburg, Russia; (A.P.D.); (Y.S.S.); (E.V.N.); (A.A.M.); (A.V.P.); (O.V.M.); (A.I.A.)
| | - Anna V. Petrova
- Russian Research Institute of Farm Animal Genetics and Breeding—Branch of the L. K. Ernst Federal Research Centre for Animal Husbandry, Pushkin, 196601 St. Petersburg, Russia; (A.P.D.); (Y.S.S.); (E.V.N.); (A.A.M.); (A.V.P.); (O.V.M.); (A.I.A.)
| | - Olga V. Mitrofanova
- Russian Research Institute of Farm Animal Genetics and Breeding—Branch of the L. K. Ernst Federal Research Centre for Animal Husbandry, Pushkin, 196601 St. Petersburg, Russia; (A.P.D.); (Y.S.S.); (E.V.N.); (A.A.M.); (A.V.P.); (O.V.M.); (A.I.A.)
| | - Kirill V. Plemyashov
- Federal State Budgetary Educational Institution of Higher Education “St. Petersburg State University of Veterinary Medicine”, 196084 St. Petersburg, Russia;
| | - Anastasiia I. Azovtseva
- Russian Research Institute of Farm Animal Genetics and Breeding—Branch of the L. K. Ernst Federal Research Centre for Animal Husbandry, Pushkin, 196601 St. Petersburg, Russia; (A.P.D.); (Y.S.S.); (E.V.N.); (A.A.M.); (A.V.P.); (O.V.M.); (A.I.A.)
| | | | - Michael N. Romanov
- School of Biosciences, University of Kent, Canterbury CT2 7NJ, UK;
- L. K. Ernst Federal Research Centre for Animal Husbandry, Dubrovitsy, 142132 Podolsk, Moscow Oblast, Russia
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Mukherjee AG, Valsala Gopalakrishnan A. The interplay of arsenic, silymarin, and NF-ĸB pathway in male reproductive toxicity: A review. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 252:114614. [PMID: 36753973 DOI: 10.1016/j.ecoenv.2023.114614] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 02/02/2023] [Accepted: 02/03/2023] [Indexed: 06/18/2023]
Abstract
Arsenic toxicity is one of the most trending reasons for several malfunctions, particularly reproductive toxicity. The exact mechanism of arsenic poisoning is a big question mark. Exposure to arsenic reduces sperm count, impairs fertilization, and causes inflammation and genotoxicity through interfering with autophagy, epigenetics, ROS generation, downregulation of essential protein expression, metabolite changes, and hampering several signaling cascades, particularly by the alteration of NF-ĸB pathway. This work tries to give a clear idea about the different aspects of arsenic resulting in male reproductive complications, often leading to infertility. The first part of this article explains the implications of arsenic poisoning and the crosstalk of the NF-ĸB pathway in male reproductive toxicity. Silymarin is a bioactive compound that exerts anti-cancer and anti-inflammatory properties and has demonstrated hopeful outcomes in several cancers, including colon cancer, breast cancer, and skin cancer, by downregulating the hyperactive NF-ĸB pathway. The next half of this article thus sheds light on silymarin's therapeutic potential in inhibiting the NF-ĸB signaling cascade, thus offering protection against arsenic-induced male reproductive toxicity.
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Affiliation(s)
- Anirban Goutam Mukherjee
- Department of Biomedical Sciences, School of Biosciences and Technology, Vellore Institute of Technology (VIT), Vellore 632014, India
| | - Abilash Valsala Gopalakrishnan
- Department of Biomedical Sciences, School of Biosciences and Technology, Vellore Institute of Technology (VIT), Vellore 632014, India.
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5
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Kaewman P, Nudmamud-Thanoi S, Thongleart J, Charoenlappanit S, Roytrakul S, Thanoi S. Differential protein expression of GABA A receptor alpha 1 subunit and calbindin in rat spermatozoa associated with proteomic analysis in testis following methamphetamine administration. PLoS One 2023; 18:e0273888. [PMID: 36598915 DOI: 10.1371/journal.pone.0273888] [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: 08/16/2022] [Accepted: 12/16/2022] [Indexed: 01/05/2023] Open
Abstract
Methamphetamine (METH) can induce spermatogenesis impairment, testicular apoptosis, and abnormal sperm quality. It also promotes changes in the expression of receptors for sex hormones and neurotransmitters, including GABA receptors in the testis. Proteomic assessment focusing on proteins involved in the calcium signalling pathway in the testis can facilitate diagnostic factors contributing to testicular and sperm functions, especially those related to spermatogenesis and fertilisation. In this study, we proposed to determine the localisation and differential expression of GABA A receptor alpha 1 subunit (GABA A-α1) in the spermatozoa of METH-administered rats. The differential proteomic profile of the testis was also observed by focusing on proteins in the KEGG pathways belonging to the calcium signalling pathway. There were 212 differentially expressed proteins in the rat testis, based on the cut-off value of 1.2-fold change. Most of those proteins, 13 proteins, were classified in the calcium signalling pathway, including 4 down-regulated and 9 up-regulated proteins. An immunolocalisation study of the GABA A-α1 receptor and calbindin revealed their localisation in the equatorial segment of the head in the rat spermatozoa. The expression of calbindin is also found in the middle piece of sperm. An increase in GABA A-α1 receptor in rat spermatozoa was correlated with an increase in abnormal sperm motility and morphology after methamphetamine exposure. Moreover, calbindin expression in sperm decreased in METH-administered rats. All our findings demonstrate that METH influences intracellular calcium homeostasis by acting through the calcium signalling pathway-associated proteins. Moreover, it might disrupt ion homeostasis in sperm through the GABA A-α1 receptor and calbindin, triggering a change in intracellular calcium and chloride ions. These changes may cause abnormalities in spermatogenesis, testicular apoptosis, and sperm quality impairment.
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Affiliation(s)
- Paweena Kaewman
- School of Medicine, Walailak University, Nakhon Si Thammarat, Thailand
- Department of Anatomy, Faculty of Medical Science, Naresuan University, Phitsanulok, Thailand
| | - Sutisa Nudmamud-Thanoi
- Department of Anatomy, Faculty of Medical Science, Naresuan University, Phitsanulok, Thailand
- Centre of Excellence in Medical Biotechnology, Naresuan University, Phitsanulok, Thailand
| | - Jitnapar Thongleart
- Department of Anatomy, Faculty of Medical Science, Naresuan University, Phitsanulok, Thailand
| | - Sawanya Charoenlappanit
- Functional Ingredients and Food Innovation Research Group, National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Pathum Thani, Thailand
| | - Sittiruk Roytrakul
- Functional Ingredients and Food Innovation Research Group, National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Pathum Thani, Thailand
| | - Samur Thanoi
- School of Medical Sciences, University of Phayao, Phayao, Thailand
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6
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Zhang W, Liu L, Zhou M, Su S, Dong L, Meng X, Li X, Wang C. Assessing Population Structure and Signatures of Selection in Wanbei Pigs Using Whole Genome Resequencing Data. Animals (Basel) 2022; 13:ani13010013. [PMID: 36611624 PMCID: PMC9817800 DOI: 10.3390/ani13010013] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 12/10/2022] [Accepted: 12/18/2022] [Indexed: 12/24/2022] Open
Abstract
Wanbei pig (WBP) is one of the indigenous pig resources in China and has many germplasm characteristics. However, research on its genome is lacking. To assess the genomic variation, population structure, and selection signatures, we resequenced 18 WBP for the first time and performed a comprehensive analysis with resequenced data of 10 Asian wild boars. In total, 590.03 Gb of data and approximately 41 million variants were obtained. Polymorphism level (θπ) ratio and genetic differentiation (fixation index)-based cross approaches were applied, and 539 regions, which harbored 176 genes, were selected. Functional analysis of the selected genes revealed that they were associated with lipid metabolism (SCP2, APOA1, APOA4, APOC3, CD36, BCL6, ADCY8), backfat thickness (PLAG1, CACNA2D1), muscle (MYOG), and reproduction (CABS1). Overall, our results provide a valuable resource for characterizing the uniqueness of WBP and a basis for future breeding.
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Affiliation(s)
- Wei Zhang
- Key Laboratory of Pig Molecular Quantitative Genetics, Anhui Academy of Agricultural Sciences, Hefei 230031, China
- Anhui Provincial Key Laboratory of Livestock and Poultry Product Safety Engineering, Hefei 230031, China
- Institute of Animal Husbandry and Veterinary Medicine, Anhui Academy of Agricultural Sciences, Hefei 230031, China
| | - Linqing Liu
- Key Laboratory of Pig Molecular Quantitative Genetics, Anhui Academy of Agricultural Sciences, Hefei 230031, China
- Anhui Provincial Key Laboratory of Livestock and Poultry Product Safety Engineering, Hefei 230031, China
- Institute of Animal Husbandry and Veterinary Medicine, Anhui Academy of Agricultural Sciences, Hefei 230031, China
| | - Mei Zhou
- Key Laboratory of Pig Molecular Quantitative Genetics, Anhui Academy of Agricultural Sciences, Hefei 230031, China
- Anhui Provincial Key Laboratory of Livestock and Poultry Product Safety Engineering, Hefei 230031, China
- Institute of Animal Husbandry and Veterinary Medicine, Anhui Academy of Agricultural Sciences, Hefei 230031, China
| | - Shiguang Su
- Key Laboratory of Pig Molecular Quantitative Genetics, Anhui Academy of Agricultural Sciences, Hefei 230031, China
- Anhui Provincial Key Laboratory of Livestock and Poultry Product Safety Engineering, Hefei 230031, China
- Institute of Animal Husbandry and Veterinary Medicine, Anhui Academy of Agricultural Sciences, Hefei 230031, China
| | - Lin Dong
- Key Laboratory of Pig Molecular Quantitative Genetics, Anhui Academy of Agricultural Sciences, Hefei 230031, China
- Institute of Animal Husbandry and Veterinary Medicine, Anhui Academy of Agricultural Sciences, Hefei 230031, China
| | - Xinxin Meng
- Key Laboratory of Pig Molecular Quantitative Genetics, Anhui Academy of Agricultural Sciences, Hefei 230031, China
- Institute of Animal Husbandry and Veterinary Medicine, Anhui Academy of Agricultural Sciences, Hefei 230031, China
| | - Xueting Li
- Key Laboratory of Pig Molecular Quantitative Genetics, Anhui Academy of Agricultural Sciences, Hefei 230031, China
- Institute of Animal Husbandry and Veterinary Medicine, Anhui Academy of Agricultural Sciences, Hefei 230031, China
| | - Chonglong Wang
- Key Laboratory of Pig Molecular Quantitative Genetics, Anhui Academy of Agricultural Sciences, Hefei 230031, China
- Anhui Provincial Key Laboratory of Livestock and Poultry Product Safety Engineering, Hefei 230031, China
- Institute of Animal Husbandry and Veterinary Medicine, Anhui Academy of Agricultural Sciences, Hefei 230031, China
- Correspondence:
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7
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Omolaoye TS, Hachim MY, du Plessis SS. Using publicly available transcriptomic data to identify mechanistic and diagnostic biomarkers in azoospermia and overall male infertility. Sci Rep 2022; 12:2584. [PMID: 35173218 PMCID: PMC8850557 DOI: 10.1038/s41598-022-06476-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Accepted: 01/28/2022] [Indexed: 12/23/2022] Open
Abstract
Azoospermia, which is the absence of spermatozoa in an ejaculate occurring due to defects in sperm production, or the obstruction of the reproductive tract, affects about 1% of all men and is prevalent in up to 10–15% of infertile males. Conventional semen analysis remains the gold standard for diagnosing and treating male infertility; however, advances in molecular biology and bioinformatics now highlight the insufficiency thereof. Hence, the need to widen the scope of investigating the aetiology of male infertility stands pertinent. The current study aimed to identify common differentially expressed genes (DEGs) that might serve as potential biomarkers for non-obstructive azoospermia (NOA) and overall male infertility. DEGs across different datasets of transcriptomic profiling of testis from human patients with different causes of infertility/ impaired spermatogenesis and/or azoospermia were explored using the gene expression omnibus (GEO) database. Following the search using the GEOquery, 30 datasets were available, with 5 meeting the inclusion criteria. The DEGs for datasets were identified using limma R packages through the GEO2R tool. The annotated genes of the probes in each dataset were intersected with DEGs from all other datasets. Enriched Ontology Clustering for the identified genes was performed using Metascape to explore the possible connection or interaction between the genes. Twenty-five DEGs were shared between most of the datasets, which might indicate their role in the pathogenesis of male infertility. Of the 25 DEGs, eight genes (THEG, SPATA20, ROPN1L, GSTF1, TSSK1B, CABS1, ADAD1, RIMBP3) are either involved in the overall spermatogenic processes or at specific phases of spermatogenesis. We hypothesize that alteration in the expression of these genes leads to impaired spermatogenesis and, ultimately, male infertility. Thus, these genes can be used as potential biomarkers for the early detection of NOA.
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Affiliation(s)
- Temidayo S Omolaoye
- Department of Basic Sciences, College of Medicine, Mohammed Bin Rashid University of Medicine and Health Sciences, Dubai, UAE
| | - Mahmood Yaseen Hachim
- Department of Basic Sciences, College of Medicine, Mohammed Bin Rashid University of Medicine and Health Sciences, Dubai, UAE.
| | - Stefan S du Plessis
- Department of Basic Sciences, College of Medicine, Mohammed Bin Rashid University of Medicine and Health Sciences, Dubai, UAE.,Division of Medical Physiology, Faculty of Medicine and Health Sciences, Stellenbosch University, Tygerberg, South Africa
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Cabs1 Maintains Structural Integrity of Mouse Sperm Flagella during Epididymal Transit of Sperm. Int J Mol Sci 2021; 22:ijms22020652. [PMID: 33440775 PMCID: PMC7827751 DOI: 10.3390/ijms22020652] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 12/23/2020] [Accepted: 12/31/2020] [Indexed: 12/13/2022] Open
Abstract
The calcium-binding protein spermatid-associated 1 (Cabs1) is a novel spermatid-specific protein. However, its function remains largely unknown. In this study, we found that a long noncoding RNA (lncRNA) transcripted from the Cabs1 gene antisense, AntiCabs1, was also exclusively expressed in spermatids. Cabs1 and AntiCabs1 knockout mice were generated separately (using Clustered Regularly Interspaced Short Palindromic Repeat (CRISPR)-Cas9 methods) to investigate their functions in spermatogenesis. The genetic loss of Cabs1 did not affect testicular and epididymal development; however, male mice exhibited significantly impaired sperm tail structure and subfertility. Ultrastructural analysis revealed defects in sperm flagellar differentiation leading to an abnormal annulus and disorganization of the midpiece-principal piece junction, which may explain the high proportion of sperm with a bent tail. Interestingly, the proportion of sperm with a bent tail increased during transit in the epididymis. Furthermore, Western blot and immunofluorescence analyses showed that a genetic loss of Cabs1 decreased Septin 4 and Krt1 and increased cyclin Y-like 1 (Ccnyl1) levels compared with the wild type, suggesting that Cabs1 deficiency disturbed the expression of cytoskeleton-related proteins. By contrast, AntiCabs1-/- mice were indistinguishable from the wild type regarding testicular and epididymal development, sperm morphology, concentration and motility, and male fertility. This study demonstrates that Cabs1 is an important component of the sperm annulus essential for proper sperm tail assembly and motility.
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9
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Marcet-Palacios M, Reyes-Serratos E, Gonshor A, Buck R, Lacy P, Befus AD. Structural and posttranslational analysis of human calcium-binding protein, spermatid-associated 1. J Cell Biochem 2020; 121:4945-4958. [PMID: 32692864 DOI: 10.1002/jcb.29824] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Accepted: 06/23/2020] [Indexed: 12/31/2022]
Abstract
Recently, we detected a novel biomarker in human saliva called calcium-binding protein, spermatid-associated 1 (CABS1). CABS1 protein had previously been described only in testis, and little was known of its characteristics other than it was considered a structurally disordered protein. Levels of human CABS1 (hCABS1) in saliva correlate with stress, whereas smaller sized forms of hCABS1 in saliva are associated with resilience to stress. Interestingly, hCABS1 also has an anti-inflammatory peptide sequence near its carboxyl terminus, similar to that of a rat prohormone, submandibular rat 1. We performed phylogenetic and sequence analysis of hCABS1. We found that from 72 CABS1 sequences currently annotated in the National Center for Biotechnology Information protein database, only 14 contain the anti-inflammatory domain "TxIFELL," all of which are primates. We performed structural unfoldability analysis using PONDER and FoldIndex and discovered three domains that are highly disordered. Predictions of three-dimensional structure of hCABS1 using RaptorX, IonCom, and I-TASSER software agreed with these findings. Predicted neutrophil elastase cleavage density also correlated with hCABS1 regions of high structural disorder. Ligand binding prediction identified Ca2+ , Mg2+ , Zn2+ , leucine, and thiamine pyrophosphate, a pattern observed in enzymes associated with energy metabolism and mitochondrial localization. These new observations on hCABS1 raise intriguing questions about the interconnection between the autonomic nervous system, stress, and the immune system. However, the precise molecular mechanisms involved in the complex biology of hCABS1 remain unclear. We provide a detailed in silico analysis of relevant aspects of the structure and function of hCABS1 and postulate extracellular and intracellular roles.
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Affiliation(s)
- Marcelo Marcet-Palacios
- Department of Medicine, Alberta Respiratory Centre, University of Alberta, Edmonton, Alberta, Canada
- Northern Alberta Institute of Technology, Biological Sciences, Edmonton, Alberta, Canada
| | - Eduardo Reyes-Serratos
- Department of Medicine, Alberta Respiratory Centre, University of Alberta, Edmonton, Alberta, Canada
| | | | - Robert Buck
- Fluids iQ Inc., Ottawa, Ontario, Canada
- GB Diagnostics, Kingman, Arizona
| | - Paige Lacy
- Department of Medicine, Alberta Respiratory Centre, University of Alberta, Edmonton, Alberta, Canada
| | - A D Befus
- Department of Medicine, Alberta Respiratory Centre, University of Alberta, Edmonton, Alberta, Canada
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Zhang W, Yang M, Zhou M, Wang Y, Wu X, Zhang X, Ding Y, Zhao G, Yin Z, Wang C. Identification of Signatures of Selection by Whole-Genome Resequencing of a Chinese Native Pig. Front Genet 2020; 11:566255. [PMID: 33093844 PMCID: PMC7527633 DOI: 10.3389/fgene.2020.566255] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Accepted: 08/20/2020] [Indexed: 12/03/2022] Open
Abstract
Identification of genomic signatures of selection that help reveal genetic mechanisms underlying traits in domesticated pigs is of importance. Anqing six-end-white pig (ASP), a representative of the native breeds in China, has many distinguishing phenotypic characteristics. To identify the genomic signatures of selection of the ASP, whole-genome sequencing of 20 ASPs produced 469.01 Gb of sequence data and more than 26 million single-nucleotide polymorphisms. Combining these data with the available whole genomes of 13 Chinese wild boars, 157 selected regions harboring 48 protein-coding genes were identified by applying the polymorphism levels (θπ) and genetic differentiation (FST) based cross approaches. The genes found to be positively selected in ASP are involved in crucial biological processes such as coat color (MC1R), salivary secretion (STATH), reproduction (SPIRE2, OSBP2, LIMK2, FANCA, and CABS1), olfactory transduction (OR5K4), and growth (NPY1R, NPY5R, and SELENOM). Our research increased the knowledge of ASP phenotype-related genes and help to improve our understanding of the underlying biological mechanisms and provide valuable genetic resources that enable effective use of pigs in agricultural production.
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Affiliation(s)
- Wei Zhang
- Key Laboratory of Pig Molecular Quantitative Genetics of Anhui Academy of Agricultural Sciences, Anhui Provincial Key Laboratory of Livestock and Poultry Product Safety Engineering, Institute of Animal Husbandry and Veterinary Medicine, Anhui Academy of Agricultural Sciences, Hefei, China
| | - Min Yang
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
| | - Mei Zhou
- Key Laboratory of Pig Molecular Quantitative Genetics of Anhui Academy of Agricultural Sciences, Anhui Provincial Key Laboratory of Livestock and Poultry Product Safety Engineering, Institute of Animal Husbandry and Veterinary Medicine, Anhui Academy of Agricultural Sciences, Hefei, China
| | - Yuanlang Wang
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
| | - Xudong Wu
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
| | - Xiaodong Zhang
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
| | - Yueyun Ding
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
| | - Guiying Zhao
- Faculty of Animal Science and Technology, Yunnan Agricultural University, Kunming, China
| | - Zongjun Yin
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
| | - Chonglong Wang
- Key Laboratory of Pig Molecular Quantitative Genetics of Anhui Academy of Agricultural Sciences, Anhui Provincial Key Laboratory of Livestock and Poultry Product Safety Engineering, Institute of Animal Husbandry and Veterinary Medicine, Anhui Academy of Agricultural Sciences, Hefei, China
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11
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Sun J, Lu Y, Nozawa K, Xu Z, Morohoshi A, Castaneda JM, Noda T, Miyata H, Abbasi F, Shawki HH, Takahashi S, Devlin DJ, Yu Z, Matzuk RM, Garcia TX, Matzuk MM, Ikawa M. CRISPR/Cas9-based genome editing in mice uncovers 13 testis- or epididymis-enriched genes individually dispensable for male reproduction†. Biol Reprod 2020; 103:183-194. [PMID: 32588039 PMCID: PMC7401351 DOI: 10.1093/biolre/ioaa083] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 05/14/2020] [Accepted: 05/19/2020] [Indexed: 01/26/2023] Open
Abstract
Developing a safe and effective male contraceptive remains a challenge in the field of medical science. Molecules that selectively target the male reproductive tract and whose targets are indispensable for male reproductive function serve among the best candidates for a novel non-hormonal male contraceptive method. To determine the function of these genes in vivo, mutant mice carrying disrupted testis- or epididymis-enriched genes were generated by zygote microinjection or electroporation of the CRISPR/Cas9 components. Male fecundity was determined by consecutively pairing knockout males with wild-type females and comparing the fecundity of wild-type controls. Phenotypic analyses of testis appearance and weight, testis and epididymis histology, and sperm movement were further carried out to examine any potential spermatogenic or sperm maturation defect in mutant males. In this study, we uncovered 13 testis- or epididymis-enriched evolutionarily conserved genes that are individually dispensable for male fertility in mice. Owing to their dispensable nature, it is not feasible to use these targets for the development of a male contraceptive.
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Affiliation(s)
- Jiang Sun
- Department of Experimental Genome Research, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka, Japan.,Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Yonggang Lu
- Department of Experimental Genome Research, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka, Japan
| | - Kaori Nozawa
- Center for Drug Discovery, Baylor College of Medicine, Houston, Texas, USA.,Department of Pathology and Immunology, Baylor College of Medicine, Houston, Texas, USA
| | - Zoulan Xu
- Department of Experimental Genome Research, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka, Japan.,Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Osaka, Japan
| | - Akane Morohoshi
- Department of Experimental Genome Research, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka, Japan.,Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Julio M Castaneda
- Department of Experimental Genome Research, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka, Japan
| | - Taichi Noda
- Department of Experimental Genome Research, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka, Japan
| | - Haruhiko Miyata
- Department of Experimental Genome Research, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka, Japan
| | - Ferheen Abbasi
- Department of Experimental Genome Research, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka, Japan.,Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Hossam H Shawki
- Department of Comparative and Experimental Medicine, Graduate School of Medical Sciences, Nagoya City University, Nagoya, Japan
| | - Satoru Takahashi
- Department of Anatomy and Embryology, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Darius J Devlin
- Center for Drug Discovery, Baylor College of Medicine, Houston, Texas, USA.,Department of Pathology and Immunology, Baylor College of Medicine, Houston, Texas, USA
| | - Zhifeng Yu
- Center for Drug Discovery, Baylor College of Medicine, Houston, Texas, USA.,Department of Pathology and Immunology, Baylor College of Medicine, Houston, Texas, USA
| | - Ryan M Matzuk
- Center for Drug Discovery, Baylor College of Medicine, Houston, Texas, USA.,Department of Pathology and Immunology, Baylor College of Medicine, Houston, Texas, USA
| | - Thomas X Garcia
- Center for Drug Discovery, Baylor College of Medicine, Houston, Texas, USA.,Department of Pathology and Immunology, Baylor College of Medicine, Houston, Texas, USA.,Department of Biology and Biotechnology, University of Houston-Clear Lake, Houston, Texas, USA
| | - Martin M Matzuk
- Center for Drug Discovery, Baylor College of Medicine, Houston, Texas, USA.,Department of Pathology and Immunology, Baylor College of Medicine, Houston, Texas, USA
| | - Masahito Ikawa
- Department of Experimental Genome Research, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka, Japan.,Graduate School of Medicine, Osaka University, Suita, Osaka, Japan.,Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Osaka, Japan.,The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
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12
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Reyes-Serratos E, Marcet-Palacios M, Rosenfield D, Ritz T, Befus AD. A method to study protein biomarkers in saliva using an automated capillary nano-immunoassay platform (Wes™). J Immunol Methods 2020; 479:112749. [PMID: 31972214 DOI: 10.1016/j.jim.2020.112749] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Revised: 12/03/2019] [Accepted: 01/14/2020] [Indexed: 11/25/2022]
Abstract
Traditional immunoprobing techniques like Western blot continue to play a crucial role in the discovery and validation of biomarkers. This technique suffers from several limitations that affect reproducibility and feasibility for large-scale studies. Modern immunoprobing techniques have addressed several of these limitations. Here we contrast the use of Western blot and an automated capillary nano-immunoassay (CNIA), Wes™. We provide evidence highlighting the methodological advantages of Wes™ over Western blot in the validation of a novel biomarker, Calcium-binding protein and spermatid-associated 1 (hCABS1). While Wes™ offers a faster, more consistent approach with lower requirements for sample and antibody volumes, variations in expected molecular weights and computational algorithms used to analyze the data must receive careful consideration and assessment. Our data suggests that CNIA approaches are likely to positively impact biomarker discovery and validation.
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Affiliation(s)
- Eduardo Reyes-Serratos
- Department of Medicine, Alberta Respiratory Centre, University of Alberta, Edmonton, Alberta, Canada.
| | - Marcelo Marcet-Palacios
- Department of Medicine, Alberta Respiratory Centre, University of Alberta, Edmonton, Alberta, Canada; Northern Alberta Institute of Technology, Edmonton, Alberta, Canada
| | - David Rosenfield
- Department of Psychology, Southern Methodist University, Dallas, TX, United States
| | - Thomas Ritz
- Department of Psychology, Southern Methodist University, Dallas, TX, United States
| | - A Dean Befus
- Department of Medicine, Alberta Respiratory Centre, University of Alberta, Edmonton, Alberta, Canada
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13
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Shawki HH, Ishikawa-Yamauchi Y, Kawashima A, Katoh Y, Matsuda M, Al-Soudy AS, Minisy FM, Kuno A, Gulibaikelamu X, Hirokawa T, Takahashi S, Oishi H. EFCAB2 is a novel calcium-binding protein in mouse testis and sperm. PLoS One 2019; 14:e0214687. [PMID: 30933994 PMCID: PMC6443151 DOI: 10.1371/journal.pone.0214687] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Accepted: 03/18/2019] [Indexed: 11/18/2022] Open
Abstract
Calcium-binding proteins regulate ion metabolism and the necessary signaling pathways for the maturational events of sperm. Our aim is to identify the novel calcium-binding proteins in testis. The gene EFCAB2 (GenBank NM_026626.3, NP_080902.1) was not previously examined, and its properties and exact mechanisms of action are unknown. In this study, we performed phylogenetic and structure prediction analyses of EFCAB2, which displays definitive structural features. Additionally, the distribution, localization, and calcium binding ability of mouse EFCAB2 were investigated. Results revealed extensive conservation of EFCAB2 among different eukaryotic orthologs. The constructed 3D model predicted that mouse EFCAB2 contains seven α-helices and two EF-hand motifs. The first EF-hand motif is located in N-terminal, while the second is located in C-terminal. By aligning the 3D structure of Ca2+-binding loops from EFCAB2 with calmodulin, we predicted six residues that might be involved in Ca2+ binding. The distribution of the Efcab2 mRNA, as determined by northern blotting, was detected only in the testis among mouse tissues. Native and recombinant EFCAB2 protein were detected by western blotting as one band at 20 kDa. In situ hybridization and immunohistochemical analyses showed its localization specifically in spermatogenic cells from primary spermatocytes to elongate spermatids within the seminiferous epithelium, but neither spermatogonia nor somatic cells were expressed. Moreover, EFCAB2 was specifically localized to the principal piece of cauda epididymal sperm flagellum. Furthermore, the analyses of purified recombinant EFCAB2 by Stains-all, ruthenium red staining, and by applying in vitro autoradiography assay showed that the physiological function of this protein is Ca2+ binding. These results suggested that EFCAB2 might be involved in the control of sperm flagellar movement. Altogether, here we describe about EFCAB2 as a novel calcium-binding protein in mouse testis and sperm.
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Affiliation(s)
- Hossam H. Shawki
- Department of Anatomy and Embryology, Graduate School of Comprehensive Human Science, University of Tsukuba, Tsukuba, Japan
- Department of Animal Genetic Resources, National Gene Bank, Giza, Egypt
- Department of Comparative and Experimental Medicine, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
- * E-mail: (HHS); (AK)
| | - Yu Ishikawa-Yamauchi
- Faculty of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Japan
| | - Akihiro Kawashima
- Department of Anatomy and Embryology, Graduate School of Comprehensive Human Science, University of Tsukuba, Tsukuba, Japan
- Department of Comparative and Experimental Medicine, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
- * E-mail: (HHS); (AK)
| | - Yuki Katoh
- Institute for Advanced Medical Research, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
| | - Manabu Matsuda
- Department of Arts and Sciences, Faculty of Medicine, Kindai University, Osaka, Japan
| | - Al-Sayed Al-Soudy
- Department of Anatomy and Embryology, Graduate School of Comprehensive Human Science, University of Tsukuba, Tsukuba, Japan
- Department of Animal Genetic Resources, National Gene Bank, Giza, Egypt
| | - Fatma M. Minisy
- Department of Comparative and Experimental Medicine, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
- Pathology Department, Medical Research Division, National Research Centre, Giza, Egypt
| | - Akihiro Kuno
- Department of Anatomy and Embryology, Graduate School of Comprehensive Human Science, University of Tsukuba, Tsukuba, Japan
| | - Xiafukaiti Gulibaikelamu
- Department of Anatomy and Embryology, Graduate School of Comprehensive Human Science, University of Tsukuba, Tsukuba, Japan
| | - Takatsugu Hirokawa
- Molecular Profiling Research Center for Drug Discovery, National Institute of Advanced Industrial Science and Technology (AIST), Koutou-ku, Tokyo, Japan
| | - Satoru Takahashi
- Department of Anatomy and Embryology, Graduate School of Comprehensive Human Science, University of Tsukuba, Tsukuba, Japan
| | - Hisashi Oishi
- Department of Comparative and Experimental Medicine, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
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14
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Review on molecular and biochemical insights of arsenic-mediated male reproductive toxicity. Life Sci 2018; 212:37-58. [DOI: 10.1016/j.lfs.2018.09.045] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Revised: 09/17/2018] [Accepted: 09/25/2018] [Indexed: 12/15/2022]
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15
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Ritz T, Rosenfield D, St Laurent CD, Trueba AF, Werchan CA, Vogel PD, Auchus RJ, Reyes-Serratos E, Befus AD. A novel biomarker associated with distress in humans: calcium-binding protein, spermatid-specific 1 (CABS1). Am J Physiol Regul Integr Comp Physiol 2017; 312:R1004-R1016. [PMID: 28381457 DOI: 10.1152/ajpregu.00393.2016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Revised: 03/02/2017] [Accepted: 03/20/2017] [Indexed: 01/11/2023]
Abstract
Calcium-binding protein spermatid-specific 1 (CABS1) is expressed in the human submandibular gland and has an anti-inflammatory motif similar to that in submandibular rat 1 in rats. Here, we investigate CABS1 in human saliva and its association with psychological and physiological distress and inflammation in humans. Volunteers participated across three studies: 1) weekly baseline measures; 2) a psychosocial speech and mental arithmetic stressor under evaluative threat; and 3) during academic exam stress. Salivary samples were analyzed for CABS1 and cortisol. Additional measures included questionnaires of perceived stress and negative affect; exhaled nitric oxide; respiration and cardiac activity; lung function; and salivary and nasal inflammatory markers. We identified a CABS1 immunoreactive band at 27 kDa in all participants and additional molecular mass forms in some participants. One week temporal stability of the 27-kDa band was satisfactory (test-retest reliability estimate = 0.62-0.86). Acute stress increased intensity of 18, 27, and 55 kDa bands; 27-kDa increases were associated with more negative affect and lower heart rate, sympathetic activity, respiration rate, and minute ventilation. In both acute and academic stress, changes in 27 kDa were positively associated with salivary cortisol. The 27-kDa band was also positively associated with VEGF and salivary leukotriene B4 levels. Participants with low molecular weight CABS1 bands showed reduced habitual stress and negative affect in response to acute stress. CABS1 is readily detected in human saliva and is associated with psychological and physiological indicators of stress. The role of CABS1 in inflammatory processes, stress, and stress resilience requires careful study.
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Affiliation(s)
- Thomas Ritz
- Department of Psychology, Southern Methodist University, Dallas, Texas
| | - David Rosenfield
- Department of Psychology, Southern Methodist University, Dallas, Texas
| | - Chris D St Laurent
- Pulmonary Research Group, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Ana F Trueba
- Department of Psychology, Southern Methodist University, Dallas, Texas.,Quito Brain and Behavior Laboratory, Universidad San Francisco de Quito, Quito, Ecuador
| | - Chelsey A Werchan
- Department of Psychology, Southern Methodist University, Dallas, Texas
| | - Pia D Vogel
- Department of Biological Sciences, Southern Methodist University, Dallas, Texas; and
| | - Richard J Auchus
- Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan
| | - Eduardo Reyes-Serratos
- Pulmonary Research Group, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - A Dean Befus
- Pulmonary Research Group, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada;
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16
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Huang Q, Luo L, Alamdar A, Zhang J, Liu L, Tian M, Eqani SAMAS, Shen H. Integrated proteomics and metabolomics analysis of rat testis: Mechanism of arsenic-induced male reproductive toxicity. Sci Rep 2016; 6:32518. [PMID: 27585557 PMCID: PMC5009432 DOI: 10.1038/srep32518] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Accepted: 08/10/2016] [Indexed: 01/05/2023] Open
Abstract
Arsenic is a widespread metalloid in environment, whose exposure has been associated with a broad spectrum of toxic effects. However, a global view of arsenic-induced male reproductive toxicity is still lack, and the underlying mechanisms remain largely unclear. Our results revealed that arsenic exposure decreased testosterone level and reduced sperm quality in rats. By conducting an integrated proteomics and metabolomics analysis, the present study aims to investigate the global influence of arsenic exposure on the proteome and metabolome in rat testis. The abundance of 70 proteins (36 up-regulated and 34 down-regulated) and 13 metabolites (8 increased and 5 decreased) were found to be significantly altered by arsenic treatment. Among these, 19 proteins and 2 metabolites were specifically related to male reproductive system development and function, including spermatogenesis, sperm function and fertilization, fertility, internal genitalia development, and mating behavior. It is further proposed that arsenic mainly impaired spermatogenesis and fertilization via aberrant modulation of these male reproduction-related proteins and metabolites, which may be mediated by the ERK/AKT/NF-κB-dependent signaling pathway. Overall, these findings will aid our understanding of the mechanisms responsible for arsenic-induced male reproductive toxicity, and from such studies useful biomarkers indicative of arsenic exposure could be discovered.
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Affiliation(s)
- Qingyu Huang
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, PR China.,Ningbo Urban Environment Observation and Research Station-NUEORS, Chinese Academy of Sciences, Ningbo 315800, PR China
| | - Lianzhong Luo
- Department of Pharmacy, Xiamen Medical College, Xiamen 361008, PR China
| | - Ambreen Alamdar
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, PR China
| | - Jie Zhang
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, PR China
| | - Liangpo Liu
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, PR China
| | - Meiping Tian
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, PR China
| | | | - Heqing Shen
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, PR China
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17
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Huang YL, Fu Q, Pan H, Chen FM, Zhao XL, Wang HJ, Zhang PF, Huang FL, Lu YQ, Zhang M. Spermatogenesis-associated proteins at different developmental stages of buffalo testicular seminiferous tubules identified by comparative proteomic analysis. Proteomics 2016; 16:2005-18. [PMID: 27173832 DOI: 10.1002/pmic.201500547] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2015] [Revised: 04/20/2016] [Accepted: 05/09/2016] [Indexed: 12/26/2022]
Abstract
The testicular seminiferous tubules contain Sertoli cells and different types of spermatogenic cells. They provide the microenvironment for spermatogenesis, but the precise molecular mechanism of spermatogenesis is still not well known. Here, we have employed tandem mass tag coupled to LC-MS/MS with the high-throughput quantitative proteomics technology to explore the protein expression from buffalo testicular seminiferous tubules at three different developmental stages (prepuberty, puberty, and postpuberty). The results show 304 differentially expressed proteins with a ≥2-fold change, and bioinformatics analysis indicates that 27 of these may be associated with spermatogenesis. Expression patterns of seven selected proteins were verified via Western blot and quantitative RT-PCR analysis, and further cellular localizations of these proteins by immunohistochemical or immunofluorescence analysis. Taken together, the results provide potential molecular markers of spermatogenesis and provide a rich resource for further studies on male reproduction regulation.
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Affiliation(s)
- Yu-Lin Huang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Animal Reproduction Institute, Guangxi University, Nanning, Guangxi, P. R. China.,Guangxi High Education Laboratory for Animal Reproduction and Biotechnology, Nanning, Guangxi, P. R. China
| | - Qiang Fu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Animal Reproduction Institute, Guangxi University, Nanning, Guangxi, P. R. China.,Guangxi High Education Laboratory for Animal Reproduction and Biotechnology, Nanning, Guangxi, P. R. China
| | - Hong Pan
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Animal Reproduction Institute, Guangxi University, Nanning, Guangxi, P. R. China.,Guangxi High Education Laboratory for Animal Reproduction and Biotechnology, Nanning, Guangxi, P. R. China
| | - Fu-Mei Chen
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Animal Reproduction Institute, Guangxi University, Nanning, Guangxi, P. R. China.,Guangxi High Education Laboratory for Animal Reproduction and Biotechnology, Nanning, Guangxi, P. R. China
| | - Xiu-Ling Zhao
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Animal Reproduction Institute, Guangxi University, Nanning, Guangxi, P. R. China.,Guangxi High Education Laboratory for Animal Reproduction and Biotechnology, Nanning, Guangxi, P. R. China
| | - Huan-Jing Wang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Animal Reproduction Institute, Guangxi University, Nanning, Guangxi, P. R. China.,Guangxi High Education Laboratory for Animal Reproduction and Biotechnology, Nanning, Guangxi, P. R. China
| | - Peng-Fei Zhang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Animal Reproduction Institute, Guangxi University, Nanning, Guangxi, P. R. China.,Guangxi High Education Laboratory for Animal Reproduction and Biotechnology, Nanning, Guangxi, P. R. China
| | - Feng-Ling Huang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Animal Reproduction Institute, Guangxi University, Nanning, Guangxi, P. R. China.,Guangxi High Education Laboratory for Animal Reproduction and Biotechnology, Nanning, Guangxi, P. R. China
| | - Yang-Qing Lu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Animal Reproduction Institute, Guangxi University, Nanning, Guangxi, P. R. China.,Guangxi High Education Laboratory for Animal Reproduction and Biotechnology, Nanning, Guangxi, P. R. China
| | - Ming Zhang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Animal Reproduction Institute, Guangxi University, Nanning, Guangxi, P. R. China.,Guangxi High Education Laboratory for Animal Reproduction and Biotechnology, Nanning, Guangxi, P. R. China
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18
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Kawashima A, Kigoshi T, Katoh Y, Ishikawa Y, Shawki HH, Inoue N, Tamba M, Matsuda M, Okamura N. CABCOCO1, a novel coiled-coil protein With calcium-binding activity, is localized in the sperm flagellum. Mol Reprod Dev 2016; 83:912-926. [PMID: 26990073 DOI: 10.1002/mrd.22639] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2015] [Accepted: 03/07/2016] [Indexed: 01/08/2023]
Abstract
The gene 1700040L02Rik (GenBank accession number NM_028491, NP_082767.1) was selected by in silico screening as candidate that encodes a calcium-binding protein in sperm from a database of predicted mouse cilia-related genes. The predicted amino acid sequence revealed the presence of coiled-coil domain at the C-terminus and a CLAMP motif containing a leucine zipper domain in the middle of the protein. Assessment of a recombinant version of this protein by Stains-all and ruthenium red staining and by direct measurement of terbium binding revealed its calcium-binding activities. We therefore named this protein CABCOCO1 for calcium-binding coiled-coil protein-1. Immunohistochemical analyses showed its localization in spermatogenic cells of mouse testis. CABCOCO1 was first observed in the cytoplasm of murine spermatocytes, concentrated around centrioles of spermatids and co-localized with the centrosomal protein pericentrin. During the stage when centrosome number is reduced, CABCOCO1 relocalized to the murine sperm flagellum. On the other hand, in porcine sperm, whose proximal centriole remains intact while the distal centriole degenerates during spermiogenesis, CABCOCO1 localized both in the basal body and the flagellum. These results suggested that CABCOCO1 is involved in the control of sperm flagellar movement. Mol. Reprod. Dev. 83: 912-926, 2016 © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Akihiro Kawashima
- Laboratory of Reproductive Biochemistry, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Takumi Kigoshi
- Laboratory of Reproductive Biochemistry, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Yuki Katoh
- Laboratory of Reproductive Biochemistry, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan.,Center for Humanities and Sciences, Ibaraki Prefectural University of Health Sciences, Ami, Ibaraki, Japan
| | - Yu Ishikawa
- Laboratory of Reproductive Biochemistry, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan.,Ph.D. Program in Human Biology, School of Integrative and Global Majors, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Hossam H Shawki
- Laboratory of Reproductive Biochemistry, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan.,Faculty of Medicine, Department of Anatomy and Embryology, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Naoya Inoue
- Laboratory of Reproductive Biochemistry, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Michiko Tamba
- Laboratory of Reproductive Biochemistry, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Manabu Matsuda
- Laboratory of Reproductive Biochemistry, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Naomichi Okamura
- Laboratory of Reproductive Biochemistry, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan.
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19
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Shawki HH, Kigoshi T, Katoh Y, Matsuda M, Ugboma CM, Takahashi S, Oishi H, Kawashima A. Identification, localization, and functional analysis of the homologues of mouse CABS1 protein in porcine testis. Exp Anim 2016; 65:253-65. [PMID: 26960363 PMCID: PMC4976239 DOI: 10.1538/expanim.15-0104] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
Previously, we have identified a calcium-binding protein that is specifically expressed in spermatids and localized to the flagella of the mature sperm in mouse, so-called mCABS1. However, the physiological roles of CABS1 in the male reproductive system have not been fully elucidated yet. In the current study, we aimed to localize and clarify the role of CABS1 in porcine (pCABS1). We determined for the first time the full nucleotides sequence of pCABS1 mRNA. pCABS1 protein was detected on SDS-PAGE gel as two bands at 75 kDa and 70 kDa in adult porcine testis, whereas one band at 70 kDa in epididymal sperm. pCABS1 immunoreactivity in seminiferous tubules was detected in the elongated spermatids, and that in the epididymal sperm was found in the acrosome as well as flagellum. The immunoreactivity of pCABS1 in the acrosomai region disappeared during acrosome reaction. We also identified that pCABS1 has a transmembrane domain using computational prediction of the amino acids sequence. The treatment of porcine capacitated sperm with anti-pCABS1 antiserum significantly decreased acrosome reactions. These results suggest that pCABS1 plays an important role in controlling calcium ion signaling during the acrosome reaction.
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Affiliation(s)
- Hossam H Shawki
- Laboratory of Reproductive Biochemistry, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan
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20
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St Laurent CD, St Laurent KE, Mathison RD, Befus AD. Calcium-binding protein, spermatid-specific 1 is expressed in human salivary glands and contains an anti-inflammatory motif. Am J Physiol Regul Integr Comp Physiol 2015; 308:R569-75. [PMID: 25632019 DOI: 10.1152/ajpregu.00153.2014] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2014] [Accepted: 01/22/2015] [Indexed: 11/22/2022]
Abstract
Salivary glands are involved in the production and exocrine and endocrine secretion of biologically active proteins, polypeptides, and hormones involved in growth and differentiation, homeostasis, and digestion. We have previously studied the prohormone submandibular rat 1 (SMR1), product of the Vcsa1 gene, which is highly expressed in the testes and salivary glands of rats, and can be cleaved to produce polypeptides with analgesic, erectile function, and anti-inflammatory activities. Humans lack the Vcsa1 gene, but homologous sequences and functions for analgesia and erectile function exist in the human genes Prol1, SMR3a, and SMR3b located on the human chromosomal region close to where Vcsa1 lies in the rat. Here we show the human protein calcium-binding protein spermatid-specific 1 (CABS1) contains a similar sequence to the anti-inflammatory sequence in rat SMR1, thus CABS1 may be another human gene with homologous function to Vcsa1. Using Western blot and PCR, we discovered that the human protein CABS1, previously thought to only be expressed in the testes, is also expressed in the salivary glands and lung, in a tissue-specific manner. Peptides derived from CABS1 were tested in an in vivo mouse model of lipopolysaccharide (LPS)-induced neutrophilia and an ex vivo rat model of antigen-induced intestinal anaphylaxis and significantly reduced both neutrophil accumulation in bronchoalveolar lavage fluid and antigen-induced ileal contractions, respectively. Thus human CABS1 has a peptide motif homologous to the anti-inflammatory peptide sequence of rat SMR1. Whether this similarity of CABS1 extends to the neuroendocrine regulation of the anti-inflammatory activity seen for SMR1 remains to be determined.
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Affiliation(s)
- Chris D St Laurent
- Pulmonary Research Group, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada; and
| | - Katherine E St Laurent
- Pulmonary Research Group, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada; and
| | - Ron D Mathison
- Faculty of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - A Dean Befus
- Pulmonary Research Group, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada; and
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Katoh Y, Takebayashi K, Kikuchi A, Iki A, Kikuchi K, Tamba M, Kawashima A, Matsuda M, Okamura N. Porcine sperm capacitation involves tyrosine phosphorylation and activation of aldose reductase. Reproduction 2014; 148:389-401. [PMID: 25049426 DOI: 10.1530/rep-14-0199] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Mammalian sperm must be activated in the tubal isthmus through capacitation to induce the acrosome reaction and subsequent fertilization. Although the molecular mechanisms involved in capacitation have yet to be fully elucidated, increased concentrations of reactive oxygen species (ROS) and the extent of tyrosine phosphorylation of proteins have been suggested to play central roles in the completion of capacitation. In this study, aldose reductase was for the first time identified as one of the tyrosine-phosphorylated proteins involved in the capacitation of porcine cauda epididymal sperm. Both tyrosine phosphorylation and activity of aldose reductase associated with the particulate fraction of sperm cells were significantly enhanced during capacitation. Alrestatin, a membrane-permeable and specific inhibitor of aldose reductase, plays a role in the inhibition of aldose reductase activity, elevation of intracellular levels of ROS, and induction of hyperactivated motility, all at similar dose dependencies. Alrestatin canceled both the increase in the tyrosine phosphorylation of aldose reductase and the decrease in the glutathione levels in sperm-induced during capacitation. The hyperactivated motility was induced to a higher extent in the presence of glucose than in the presence of fructose. These results indicate that aldose reductase plays an important role in induction of hyperactivation and capacitation of sperm through the elevation of ROS in sperm cells. Furthermore, aldose reductase was shown to be added to sperm during transit through the epididymis, suggesting that aldose reductase is one of the key proteins that support the functional maturation of sperm.
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Affiliation(s)
- Yuki Katoh
- Graduate School of Comprehensive Human SciencesUniversity of Tsukuba, Tennodai 1-1-1, Tsukuba, Ibaraki 305-8575, JapanCenter for Humanities and SciencesIbaraki Prefectural University of Health Sciences, Ami 4669-2, Ami, Ibaraki 300-0394, JapanDivision of Animal SciencesNational Institute of Agrobiological Sciences, Tsukuba, Ibaraki 305-8602, JapanGraduate School of ScienceUniversity of Tokyo, Tokyo 113-0033, Japan Graduate School of Comprehensive Human SciencesUniversity of Tsukuba, Tennodai 1-1-1, Tsukuba, Ibaraki 305-8575, JapanCenter for Humanities and SciencesIbaraki Prefectural University of Health Sciences, Ami 4669-2, Ami, Ibaraki 300-0394, JapanDivision of Animal SciencesNational Institute of Agrobiological Sciences, Tsukuba, Ibaraki 305-8602, JapanGraduate School of ScienceUniversity of Tokyo, Tokyo 113-0033, Japan
| | - Kohsuke Takebayashi
- Graduate School of Comprehensive Human SciencesUniversity of Tsukuba, Tennodai 1-1-1, Tsukuba, Ibaraki 305-8575, JapanCenter for Humanities and SciencesIbaraki Prefectural University of Health Sciences, Ami 4669-2, Ami, Ibaraki 300-0394, JapanDivision of Animal SciencesNational Institute of Agrobiological Sciences, Tsukuba, Ibaraki 305-8602, JapanGraduate School of ScienceUniversity of Tokyo, Tokyo 113-0033, Japan
| | - Akihiko Kikuchi
- Graduate School of Comprehensive Human SciencesUniversity of Tsukuba, Tennodai 1-1-1, Tsukuba, Ibaraki 305-8575, JapanCenter for Humanities and SciencesIbaraki Prefectural University of Health Sciences, Ami 4669-2, Ami, Ibaraki 300-0394, JapanDivision of Animal SciencesNational Institute of Agrobiological Sciences, Tsukuba, Ibaraki 305-8602, JapanGraduate School of ScienceUniversity of Tokyo, Tokyo 113-0033, Japan
| | - Ayumi Iki
- Graduate School of Comprehensive Human SciencesUniversity of Tsukuba, Tennodai 1-1-1, Tsukuba, Ibaraki 305-8575, JapanCenter for Humanities and SciencesIbaraki Prefectural University of Health Sciences, Ami 4669-2, Ami, Ibaraki 300-0394, JapanDivision of Animal SciencesNational Institute of Agrobiological Sciences, Tsukuba, Ibaraki 305-8602, JapanGraduate School of ScienceUniversity of Tokyo, Tokyo 113-0033, Japan
| | - Kazuhiro Kikuchi
- Graduate School of Comprehensive Human SciencesUniversity of Tsukuba, Tennodai 1-1-1, Tsukuba, Ibaraki 305-8575, JapanCenter for Humanities and SciencesIbaraki Prefectural University of Health Sciences, Ami 4669-2, Ami, Ibaraki 300-0394, JapanDivision of Animal SciencesNational Institute of Agrobiological Sciences, Tsukuba, Ibaraki 305-8602, JapanGraduate School of ScienceUniversity of Tokyo, Tokyo 113-0033, Japan
| | - Michiko Tamba
- Graduate School of Comprehensive Human SciencesUniversity of Tsukuba, Tennodai 1-1-1, Tsukuba, Ibaraki 305-8575, JapanCenter for Humanities and SciencesIbaraki Prefectural University of Health Sciences, Ami 4669-2, Ami, Ibaraki 300-0394, JapanDivision of Animal SciencesNational Institute of Agrobiological Sciences, Tsukuba, Ibaraki 305-8602, JapanGraduate School of ScienceUniversity of Tokyo, Tokyo 113-0033, Japan
| | - Akihiro Kawashima
- Graduate School of Comprehensive Human SciencesUniversity of Tsukuba, Tennodai 1-1-1, Tsukuba, Ibaraki 305-8575, JapanCenter for Humanities and SciencesIbaraki Prefectural University of Health Sciences, Ami 4669-2, Ami, Ibaraki 300-0394, JapanDivision of Animal SciencesNational Institute of Agrobiological Sciences, Tsukuba, Ibaraki 305-8602, JapanGraduate School of ScienceUniversity of Tokyo, Tokyo 113-0033, Japan
| | - Manabu Matsuda
- Graduate School of Comprehensive Human SciencesUniversity of Tsukuba, Tennodai 1-1-1, Tsukuba, Ibaraki 305-8575, JapanCenter for Humanities and SciencesIbaraki Prefectural University of Health Sciences, Ami 4669-2, Ami, Ibaraki 300-0394, JapanDivision of Animal SciencesNational Institute of Agrobiological Sciences, Tsukuba, Ibaraki 305-8602, JapanGraduate School of ScienceUniversity of Tokyo, Tokyo 113-0033, Japan
| | - Naomichi Okamura
- Graduate School of Comprehensive Human SciencesUniversity of Tsukuba, Tennodai 1-1-1, Tsukuba, Ibaraki 305-8575, JapanCenter for Humanities and SciencesIbaraki Prefectural University of Health Sciences, Ami 4669-2, Ami, Ibaraki 300-0394, JapanDivision of Animal SciencesNational Institute of Agrobiological Sciences, Tsukuba, Ibaraki 305-8602, JapanGraduate School of ScienceUniversity of Tokyo, Tokyo 113-0033, Japan Graduate School of Comprehensive Human SciencesUniversity of Tsukuba, Tennodai 1-1-1, Tsukuba, Ibaraki 305-8575, JapanCenter for Humanities and SciencesIbaraki Prefectural University of Health Sciences, Ami 4669-2, Ami, Ibaraki 300-0394, JapanDivision of Animal SciencesNational Institute of Agrobiological Sciences, Tsukuba, Ibaraki 305-8602, JapanGraduate School of ScienceUniversity of Tokyo, Tokyo 113-0033, Japan
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22
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Cook NP, Archer CM, Fawver JN, Schall HE, Rodriguez-Rivera J, Dineley KT, Martı́ AA, Murray IVJ. Ruthenium red colorimetric and birefringent staining of amyloid-β aggregates in vitro and in Tg2576 mice. ACS Chem Neurosci 2013; 4:379-84. [PMID: 23509974 DOI: 10.1021/cn300219n] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Alzheimer's disease (AD) is a devastating neurodegenerative disease most notably characterized by the misfolding of amyloid-β (Aβ) into fibrils and its accumulation into plaques. In this Article, we utilize the affinity of Aβ fibrils to bind metal cations and subsequently imprint their chirality to bound molecules to develop novel imaging compounds for staining Aβ aggregates. Here, we investigate the cationic dye ruthenium red (ammoniated ruthenium oxychloride) that binds calcium-binding proteins, as a labeling agent for Aβ deposits. Ruthenium red stained amyloid plaques red under light microscopy, and exhibited birefringence under crossed polarizers when bound to Aβ plaques in brain tissue sections from the Tg2576 mouse model of AD. Staining of Aβ plaques was confirmed via staining of the same sections with the fluorescent amyloid binding dye Thioflavin S. In addition, it was confirmed that divalent cations such as calcium displace ruthenium red, consistent with a mechanism of binding by electrostatic interaction. We further characterized the interaction of ruthenium red with synthetic Aβ fibrils using independent biophysical techniques. Ruthenium red exhibited birefringence and induced circular dichroic bands at 540 nm upon binding to Aβ fibrils due to induced chirality. Thus, the chirality and cation binding properties of Aβ aggregates could be capitalized for the development of novel amyloid labeling methods, adding to the arsenal of AD imaging techniques and diagnostic tools.
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Affiliation(s)
| | - Clarissa M. Archer
- Department of Neuroscience and Experimental Therapeutics, College of Medicine, Texas A&M Health Science Center, Bryan, Texas, 77807-3260, United States
| | - Janelle N. Fawver
- Department of Neuroscience and Experimental Therapeutics, College of Medicine, Texas A&M Health Science Center, Bryan, Texas, 77807-3260, United States
| | - Hayley E. Schall
- Department of Neuroscience and Experimental Therapeutics, College of Medicine, Texas A&M Health Science Center, Bryan, Texas, 77807-3260, United States
| | - Jennifer Rodriguez-Rivera
- Department
of Neurology, Mitchell Center for Neurodegenerative Diseases, University of Texas Medical Branch, Galveston, Texas
77555, United States
| | - Kelly T. Dineley
- Department
of Neurology, Mitchell Center for Neurodegenerative Diseases, University of Texas Medical Branch, Galveston, Texas
77555, United States
| | | | - Ian V. J. Murray
- Department of Neuroscience and Experimental Therapeutics, College of Medicine, Texas A&M Health Science Center, Bryan, Texas, 77807-3260, United States
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23
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OSMAN BA, KAWASHIMA A, TAMBA M, SATOH E, KATO Y, IKI A, KONISHI K, MATSUDA M, OKAMURA N. Localization of a Novel RNA-binding Protein, SKIV2L2, to the Nucleus in the Round Spermatids of Mice. J Reprod Dev 2011; 57:457-67. [DOI: 10.1262/jrd.10-179n] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Boran A.H. OSMAN
- Graduate School of Comprehensive Human Sciences, University of Tsukuba, Ibaraki 305-8575, Japan
| | - Akihiro KAWASHIMA
- Graduate School of Comprehensive Human Sciences, University of Tsukuba, Ibaraki 305-8575, Japan
| | - Michiko TAMBA
- Graduate School of Comprehensive Human Sciences, University of Tsukuba, Ibaraki 305-8575, Japan
| | - Emiko SATOH
- Graduate School of Comprehensive Human Sciences, University of Tsukuba, Ibaraki 305-8575, Japan
| | - Yuhki KATO
- Graduate School of Comprehensive Human Sciences, University of Tsukuba, Ibaraki 305-8575, Japan
| | - Ayumi IKI
- Graduate School of Comprehensive Human Sciences, University of Tsukuba, Ibaraki 305-8575, Japan
| | - Kouhei KONISHI
- Graduate School of Comprehensive Human Sciences, University of Tsukuba, Ibaraki 305-8575, Japan
| | - Manabu MATSUDA
- Graduate School of Comprehensive Human Sciences, University of Tsukuba, Ibaraki 305-8575, Japan
| | - Naomichi OKAMURA
- Graduate School of Comprehensive Human Sciences, University of Tsukuba, Ibaraki 305-8575, Japan
- Graduate School of Science, University of Tokyo, Tokyo 113-0033, Japan
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