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Bahmyari S, Khatami SH, Taghvimi S, Rezaei Arablouydareh S, Taheri-Anganeh M, Ghasemnejad-Berenji H, Farazmand T, Soltani Fard E, Solati A, Movahedpour A, Ghasemi H. MicroRNAs in Male Fertility. DNA Cell Biol 2024; 43:108-124. [PMID: 38394131 DOI: 10.1089/dna.2023.0314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2024] Open
Abstract
Around 50% of all occurrences of infertility are attributable to the male factor, which is a significant global public health concern. There are numerous circumstances that might interfere with spermatogenesis and cause the body to produce abnormal sperm. While evaluating sperm, the count, the speed at which they migrate, and their appearance are the three primary characteristics that are analyzed. MicroRNAs, also known as miRNAs, are present in all physiological fluids and tissues. They participate in both physiological and pathological processes. Researches have demonstrated that the expression of microRNA genes differs in infertile men. These genes regulate spermatogenesis at various stages and in several male reproductive cells. Hence, microRNAs have the potential to act as useful indicators in the diagnosis and treatment of male infertility and other diseases affecting male reproduction. Despite this, additional research is necessary to determine the precise miRNA regulation mechanisms.
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Affiliation(s)
- Sedigheh Bahmyari
- Department of Reproductive Biology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Seyyed Hossein Khatami
- Department of Clinical Biochemistry, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Sina Taghvimi
- Department of Biology, Faculty of Science, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - Sahar Rezaei Arablouydareh
- Reproductive Health Research Center, Clinical Research Institute, Urmia University of Medical Sciences, Urmia, Iran
| | - Mortaza Taheri-Anganeh
- Cellular and Molecular Research Center, Cellular and Molecular Medicine Research Institute, Urmia University of Medical Sciences, Urmia, Iran
| | - Hojat Ghasemnejad-Berenji
- Reproductive Health Research Center, Clinical Research Institute, Urmia University of Medical Sciences, Urmia, Iran
| | - Tooba Farazmand
- Departmant of Gynecology, School of Medicine, North Khorasan University of Medical Sciences, Bojnurd, Iran
| | - Elahe Soltani Fard
- Department of Molecular Medicine, School of Advanced Technologies, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Arezoo Solati
- Department of Reproductive Biology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
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Nelson GM, Carswell GK, Swartz CD, Recio L, Yauk CL, Chorley BN. Early microRNA responses in rodent liver mediated by furan exposure establish dose thresholds for later adverse outcomes. Toxicol Lett 2023; 384:105-114. [PMID: 37517673 PMCID: PMC10530563 DOI: 10.1016/j.toxlet.2023.07.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 07/27/2023] [Indexed: 08/01/2023]
Abstract
To reduce reliance on long-term in vivo studies, short-term data linking early molecular-based measurements to later adverse health effects is needed. Although transcriptional-based benchmark dose (BMDT) modeling has been used to estimate potencies and stratify chemicals based on potential to induce later-life effects, dose-responsive epigenetic alterations have not been routinely considered. Here, we evaluated the utility of microRNA (miRNA) profiling in mouse liver and blood, as well as in mouse primary hepatocytes in vitro, to indicate mechanisms of liver perturbation due to short-term exposure of the known rodent liver hepatotoxicant and carcinogen, furan. Benchmark dose modeling of miRNA measurements (BMDmiR) were compared to the referent transcriptional (BMDT) and apical (BMDA) estimates. These analyses indicate a robust dose response for 34 miRNAs to furan and involvement of p53-linked pathways in furan-mediated hepatotoxicity, supporting mRNA and apical measurements. Liver-sourced miRNAs were also altered in the blood and primary hepatocytes. Overall, these results indicate mechanistic involvement of miRNA in furan carcinogenicity and provide evidence of their potential utility as accessible biomarkers of exposure and disease.
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Affiliation(s)
- Gail M Nelson
- US Environmental Protection Agency, Research Triangle Park, NC 27709, USA
| | - Gleta K Carswell
- US Environmental Protection Agency, Research Triangle Park, NC 27709, USA
| | - Carol D Swartz
- Inotiv Co., 601 Keystone Park Drive, Suite 200, Morrisville, NC 27560, USA
| | - Leslie Recio
- ScitoVation, 100 Capitola Drive Suite 106, Durham, NC 27713, USA
| | - Carole L Yauk
- Dept. Of Biology, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada
| | - Brian N Chorley
- US Environmental Protection Agency, Research Triangle Park, NC 27709, USA.
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Gornalusse G, Spengler RM, Sandford E, Kim Y, Levy C, Tewari M, Hladik F, Vojtech L. Men who inject opioids exhibit altered tRNA-Gly-GCC isoforms in semen. Mol Hum Reprod 2023; 29:6994192. [PMID: 36661332 PMCID: PMC9976897 DOI: 10.1093/molehr/gaad003] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 12/05/2022] [Indexed: 01/21/2023] Open
Abstract
In addition to their role in protein translation, tRNAs can be cleaved into shorter, biologically active fragments called tRNA fragments (tRFs). Specific tRFs from spermatocytes can propagate metabolic disorders in second generations of mice. Thus, tRFs in germline cells are a mechanism of epigenetic inheritance. It has also been shown that stress and toxins can cause alterations in tRF patterns. We were therefore interested in whether injecting illicit drugs, a major stressor, impacts tRFs in germline cells. We sequenced RNA from spermatocytes and from semen-derived exosomes from people who inject illicit drugs (PWID) and from non-drug using controls, both groups of unknown fertility status. All PWID injected opioids daily, but most also used other illicit drugs. The tRF cleavage products from Gly-GCC tRNA were markedly different between spermatocytes from PWID compared to controls. Over 90% of reads in controls mapped to shorter Gly-GCC tRFs, while in PWID only 45% did. In contrast, only 4.1% of reads in controls mapped to a longer tRFs versus 45.6% in PWID. The long/short tRF ratio was significantly higher in PWID than controls (0.23 versus 0.16, P = 0.0128). We also report differential expression of a group of small nucleolar RNAs (snoRNAs) in semen-derived exosomes, including, among others, ACA14a, U19, and U3-3. Thus, PWID exhibited an altered cleavage pattern of tRNA-Gly-GCC in spermatocytes and an altered cargo of snoRNAs in semen-derived exosomes. Participants were not exclusively using opioids and were not matched with controls in terms of diet, chronic disease, or other stressors, so our finding are not conclusively linked to opioid use. However, all individuals in the PWID group did inject heroin daily. Our study indicates a potential for opioid injection and/or its associated multi-drug use habits and lifestyle changes to influence epigenetic inheritance.
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Affiliation(s)
- Germán Gornalusse
- Department of Obstetrics and Gynecology, University of Washington, Seattle, WA, USA
| | - Ryan M Spengler
- Division of Hematology and Oncology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, USA
| | - Erin Sandford
- Division of Hematology and Oncology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, USA
| | - Yeseul Kim
- Department of Obstetrics and Gynecology, University of Washington, Seattle, WA, USA
| | - Claire Levy
- Department of Obstetrics and Gynecology, University of Washington, Seattle, WA, USA
| | - Muneesh Tewari
- Division of Hematology and Oncology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, USA.,Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, USA.,Center for Computational Medicine and Bioinformatics, University of Michigan, Ann Arbor, MI, USA.,VA Ann Arbor Healthcare System, Ann Arbor, MI, USA
| | - Florian Hladik
- Department of Obstetrics and Gynecology, University of Washington, Seattle, WA, USA.,Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA.,Division of Allergy and Infectious Diseases, Department of Medicine, University of Washington, Seattle, WA, USA
| | - Lucia Vojtech
- Department of Obstetrics and Gynecology, University of Washington, Seattle, WA, USA
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4
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PIWI-Interacting RNA (piRNA) and Epigenetic Editing in Environmental Health Sciences. Curr Environ Health Rep 2022; 9:650-660. [PMID: 35917009 DOI: 10.1007/s40572-022-00372-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/28/2022] [Indexed: 01/31/2023]
Abstract
PURPOSE OF REVIEW: The epigenome modulates gene expression in response to environmental stimuli. Modifications to the epigenome are potentially reversible, making them a promising therapeutic approach to mitigate environmental exposure effects on human health. This review details currently available genome and epigenome editing technologies and highlights ncRNA, including piRNA, as potential tools for targeted epigenome editing. RECENT FINDINGS: Zinc finger nuclease (ZFN), transcription activator-like effector nuclease (TALEN), and clustered regularly interspaced short palindromic repeats (CRISPR) associated nuclease (CRISPR/Cas) research has significantly advanced genome editing technology, with broad promise in genetic research and targeted therapies. Initial epigenome-directed therapies relied on global modification and suffered from limited specificity. Adapted from current genome editing tools, zinc finger protein (ZFP), TALE, and CRISPR/nuclease-deactivated Cas (dCas) systems now confer locus-specific epigenome editing, with promising applicability in the field of environmental health sciences. However, high incidence of off-target effects and time taken for screening limit their use. FUTURE DEVELOPMENT: ncRNA serve as a versatile biomarker with well-characterized regulatory mechanisms that can easily be adapted to edit the epigenome. For instance, the transposon silencing mechanism of germline PIWI-interacting RNAs (piRNA) could be engineered to specifically methylate a given gene, overcoming pitfalls of current global modifiers. Future developments in epigenome editing technologies will inform risk assessment through mechanistic investigation and serve as potential modes of intervention to mitigate environmentally induced adverse health outcomes later in life.
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Sakai K, Hiradate Y, Hara K, Tanemura K. Potential of sperm small non-coding RNAs as biomarkers of testicular toxicity in a doxorubicin-induced mouse model. Biochem Biophys Rep 2021; 28:101160. [PMID: 34729424 PMCID: PMC8545667 DOI: 10.1016/j.bbrep.2021.101160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 10/18/2021] [Accepted: 10/19/2021] [Indexed: 11/28/2022] Open
Abstract
Testicular toxicity is a major concern in cancer chemotherapy and drug development as it can result in infertility; however, there are no effective biomarkers for this adverse effect. To identify new biomarkers, we investigated the expression of small non-coding RNAs (sncRNAs) in a mouse model of doxorubicin (DXR)-induced testicular toxicity. First, we performed small RNA-seq analysis of sperm from DXR-treated or control mice and observed differential expression of many genome-derived sequences. We then performed real-time RT-PCR validation of these sequences and discovered that sncRNA detected by one primers, dxRN_3, showed similar differential expression as that seen in the RNA-seq experiment. These findings suggest that the sncRNAs present in sperm have potential as clinically acceptable biomarkers for testicular toxicity. Testicular toxicity is a major concern in cancer chemotherapy and drug development. There is a lack of effective biomarkers to assess testicular toxicity. Small RNA-seq analysis was performed on sperm from doxorubicin-treated mice. Differential RNA expression analyses identified a small non-coding RNA. Small non-coding RNAs in sperm may be useful biomarkers for testicular toxicity.
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Affiliation(s)
- Kazuya Sakai
- Laboratory of Animal Reproduction and Development, Graduate School of Agricultural Science, Tohoku University, Sendai, Miyagi, Japan
| | - Yuki Hiradate
- Laboratory of Animal Reproduction and Development, Graduate School of Agricultural Science, Tohoku University, Sendai, Miyagi, Japan
| | - Kenshiro Hara
- Laboratory of Animal Reproduction and Development, Graduate School of Agricultural Science, Tohoku University, Sendai, Miyagi, Japan
| | - Kentaro Tanemura
- Laboratory of Animal Reproduction and Development, Graduate School of Agricultural Science, Tohoku University, Sendai, Miyagi, Japan
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6
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Bianchi E, Stermer A, Nolan T, Li H, Hall S, Boekelheide K, Sigman M, Hwang K. Highly conserved sperm function-related transcripts across three species: human, rat and mouse. Reprod Toxicol 2021; 104:44-51. [PMID: 34174366 DOI: 10.1016/j.reprotox.2021.06.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Revised: 06/17/2021] [Accepted: 06/21/2021] [Indexed: 01/24/2023]
Abstract
Assessing male reproductive toxicity of environmental and therapeutic agents relies on the histopathology of the testis and epididymis in a pre-clinical setting. Animal histopathology poorly correlates with human sperm parameters, and none of these current methods are strong indicators of sperm health or reproductive potential. Therefore, there is an urgent need to identify a translatable, non-invasive and reliable approach to monitor environmental and therapeutic agents' effects on male reproductive health. mRNA sequences were analyzed in mouse, rat and human sperm samples to identify sperm transcriptomic similarities across species that could be used as biomarkers to predict male reproductive toxicity in animal models. Semen specimens were collected from men aged 18 to 55 years with proven fertility. Rat and mouse semen specimens were collected via needle punctures of the cauda epididymides. Sperm RNAs were extracted using an optimized sperm RNA isolation protocol and subjected to polyA-purified mRNA-sequencing. Bioinformatics analyses, including differential abundance and gene set enrichment analysis, were used to investigate the biological and molecular functions of all shared and differentially abundant transcripts across species. Transcriptome profiling identified 6,684 similarly expressed transcripts within the three species of which 1,579 transcripts were found to be involved in spermatogenic functions. Our findings have shown that sperm transcriptome is highly species dependent, however, there are some key similarities among transcripts that are required for fertility. Based on these similarities, sperm mRNA biomarker may be developed to monitor male reproductive toxicity where rodent models would make suitable laboratory substitutes for human.
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Affiliation(s)
- Enrica Bianchi
- Division of Urology, Rhode Island Hospital, Providence, RI, USA; Department of Pathology and Laboratory Medicine, Brown University, Providence, RI, USA
| | - Angela Stermer
- Department of Pathology and Laboratory Medicine, Brown University, Providence, RI, USA
| | - Timothy Nolan
- Department of Pathology and Laboratory Medicine, Brown University, Providence, RI, USA
| | - Hui Li
- Department of Pathology and Laboratory Medicine, Brown University, Providence, RI, USA
| | - Susan Hall
- Department of Pathology and Laboratory Medicine, Brown University, Providence, RI, USA
| | - Kim Boekelheide
- Department of Pathology and Laboratory Medicine, Brown University, Providence, RI, USA
| | - Mark Sigman
- Division of Urology, Rhode Island Hospital, Providence, RI, USA; Department of Pathology and Laboratory Medicine, Brown University, Providence, RI, USA
| | - Kathleen Hwang
- Department of Urology, University of Pittsburgh Medical Center, Pittsburgh, PA, USA.
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Shing JC, Schaefer K, Grosskurth SE, Vo AH, Sharapova T, Bodié K, Kambara T, Buck WR. Small RNA Sequencing to Discover Circulating MicroRNA Biomarkers of Testicular Toxicity in Dogs. Int J Toxicol 2020; 40:26-39. [PMID: 33176523 DOI: 10.1177/1091581820961515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Predictive indicators of testicular toxicity could improve drug development by allowing early in-life screening for this adverse effect before it becomes severe. We hypothesized that circulating microRNAs (miRNAs) could serve as testicular toxicity biomarkers in dogs. Herein, we describe the results of an exploratory study conducted to discover biomarkers of drug-induced testicular injury. Following a dose-selection study using the testicular toxicant ethylene glycol monomethyl ether (EGME), we chose a dose of 50 mg/kg/d EGME to avoid systemic toxicity and treated 2 groups of dogs (castrated, non-castrated) for 14 to 28 days. Castrated animals were used as negative controls to identify biomarkers specific for testicular toxicity because EGME can cause toxicity to organ systems in addition to the testis. Blood was collected daily during the dosing period, followed by recovery for 29 to 43 days with less frequent sampling. Dosing was well tolerated, resulting in mild-to-moderate degeneration in testes and epididymides. Global profiling of serum miRNAs at selected dosing and recovery time points was completed by small RNA sequencing. Bioinformatics data analysis using linear modeling demonstrated several circulating miRNAs that were differentially abundant during the dosing period compared with baseline and/or castrated control samples. Confirmatory reverse transcription quantitative polymerase chain reaction data in these animals was unable to detect sustained alterations of miRNAs in serum, except for 1 potential candidate cfa-miR-146b. Taken together, we report the results of a comprehensive exploratory study and suggest future directions for follow-up research to address the challenge of developing diagnostic biomarkers of testicular toxicity.
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Affiliation(s)
| | - Kai Schaefer
- 385232AbbVie Deutschland GmbH & Co. KG, Ludwigshafen, Germany
| | | | - Andy H Vo
- 359181AbbVie, Inc. North Chicago, IL, USA
| | | | - Karen Bodié
- 385232AbbVie Deutschland GmbH & Co. KG, Ludwigshafen, Germany
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Jia Y, Tan W, Zhou Y. Transfer RNA-derived small RNAs: potential applications as novel biomarkers for disease diagnosis and prognosis. ANNALS OF TRANSLATIONAL MEDICINE 2020; 8:1092. [PMID: 33145311 PMCID: PMC7575943 DOI: 10.21037/atm-20-2797] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Transfer RNA-derived small RNA (tsRNA)s are novel non-coding RNAs, expressed in a variety of tissues and organs. Two subtypes of tsRNAs have been reported: tRNA-derived stress-induced RNA (tiRNA)s and tRNA-derived fragment (tRF)s. tsRNAs have been reported to play essential roles and possess different biological functions in a variety of physiological activities. Recently, tsRNAs have been implicated in a large number of diseases, such as cancers (including breast cancer, ovarian cancer, lung cancer, prostate cancer, colorectal cancer, etc.), neurological disorders, viral infections, metabolic diseases and angiogenesis-related diseases. Although the biological functions of tsRNAs are still poorly understood, correlations between dysregulated tsRNA expression and disease development have been recently reported. Additionally, their capabilities as potential biomarkers for disease diagnosis and prognosis have been revealed in clinical studies. In this review, we summarize the current knowledge of tsRNAs, and discuss their potential clinical applications as biomarkers in different diseases. Although the regulation of tsRNAs is similar to miRNAs in regards to the related physiological and pathological processes, the higher stability and expression levels of tsRNAs place them as ideal biomarkers for the diagnosis and prognosis in cancer and other diseases. Therefore, it is worth to verify the possibility and reliability of these reported tsRNAs as potential biomarkers for clinical applications in disease diagnosis and prognosis.
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Affiliation(s)
- Yang Jia
- Department of Pediatrics, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Wei Tan
- Department of Ophthalmology, The Second Xiangya Hospital, Central South University, Changsha, China.,Hunan Clinical Research Center of Ophthalmic Disease, Changsha, China
| | - Yedi Zhou
- Department of Ophthalmology, The Second Xiangya Hospital, Central South University, Changsha, China.,Hunan Clinical Research Center of Ophthalmic Disease, Changsha, China
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Early microRNA indicators of PPARα pathway activation in the liver. Toxicol Rep 2020; 7:805-815. [PMID: 32642447 PMCID: PMC7334544 DOI: 10.1016/j.toxrep.2020.06.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Revised: 06/01/2020] [Accepted: 06/19/2020] [Indexed: 12/29/2022] Open
Abstract
MicroRNAs (miRNAs) are short non-coding RNA species that play key roles in post-transcriptional regulation of gene expression. MiRNAs also serve as a promising source of early biomarkers for different environmental exposures and health effects, although there is limited information linking miRNA changes to specific target pathways. In this study, we measured liver miRNAs in male B6C3F1 mice exposed to a known chemical activator of the peroxisome proliferator-activated receptor alpha (PPARα) pathway, di(2-ethylhexyl) phthalate (DEHP), for 7 and 28 days at concentrations of 0, 750, 1500, 3000, or 6000 ppm in feed. At the highest dose tested, DEHP altered 61 miRNAs after 7 days and 171 miRNAs after 28 days of exposure, with 48 overlapping miRNAs between timepoints. Analysis of these 48 common miRNAs indicated enrichment in PPARα–related targets and other pathways related to liver injury and cancer. Four of the 10 miRNAs exhibiting a clear dose trend were linked to the PPARα pathway: mmu-miRs-125a-5p, -182−5p, -20a−5p, and -378a−3p. mmu-miRs-182−5p and -378a−3p were subsequently measured using digital drop PCR across a dose range for DEHP and two related phthalates with weaker PPARα activity, di-n-octyl phthalate and n-butyl benzyl phthalate, following 7-day exposures. Analysis of mmu-miRs-182−5p and -378a−3p by transcriptional benchmark dose analysis correctly identified DEHP as having the greatest potency. However, benchmark dose estimates for DEHP based on these miRNAs (average 163; range 126−202 mg/kg-day) were higher on average than values for PPARα target genes (average 74; range 29−183 mg/kg-day). These findings identify putative miRNA biomarkers of PPARα pathway activity and suggest that early miRNA changes may be used to stratify chemical potency.
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Key Words
- AIC, Akaike Information Criterion
- ALT, alanine aminotransferase
- AOP, adverse outcome pathway
- AST, aspartate aminotransferase
- Acox1, acyl-Coenzyme A oxidase 1
- Adverse outcome pathway (AOP)
- AhR, aryl hydrocarbon receptor
- BBP, n-butyl benzyl phthalate
- BMD, benchmark dose
- BMDA, apical-based benchmark dose
- BMDL, BMD lower confidence interval
- BMDT, transcriptional-based benchmark dose
- BMR, benchmark response
- BROD, benzyloxyresorufin O-debenzylation
- Benchmark dose (BMD)
- Biomarkers
- CAR, constitutive androstane receptor
- DEGs, differentially expressed genes
- DEHP, di (2-thylhexyl) phthalate
- DEmiRs, differentially expressed miRNAs
- DNOP, di-n-octyl phthalate
- EPA, U.S. Environmental Protection Agency
- EROD, ethoxyresorufin O-dealkylation
- GEO, Gene Expression Omnibus
- HCA, hepatocellular adenoma
- HCC, hepatocellular carcinoma
- Hepatocellular carcinoma
- IPA, Ingenuity Pathway Analysis
- Liver toxicity
- MOA, mode of action
- MicroRNAs
- Mode of action (MOA)
- Nrf2, nuclear receptor erythroid 2-like 2
- POD, point-of-departure
- PPARα, peroxisome proliferator-activated receptor alpha
- PROD, pentoxyresorufin O-depentylation
- PXR, pregnane X receptor
- Peroxisome proliferator-activated receptor alpha (PPARα)
- Phthalate
- SDH, sorbitol dehydrogenase
- TMM, trimmed mean of M-values
- ddPCR, droplet digital polymerase chain reaction
- mRNA, messenger RNA
- miRNAs, microRNAs
- mtDNA, mitochondrial
- rRNA, ribosomal RNA
- smallRNA-seq, small RNA sequencing
- tRNA, transfer RNA
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Kawata R, Kagawa T, Koya Y, Kajiyama H, Oda S, Yokoi T. Exploration of small RNA biomarkers for testicular injury in the serum exosomes of rats. Toxicology 2020; 440:152490. [PMID: 32418910 DOI: 10.1016/j.tox.2020.152490] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2020] [Revised: 04/20/2020] [Accepted: 05/04/2020] [Indexed: 01/15/2023]
Abstract
Testicular injury is often observed in drug development. Serum hormones are usually used as noninvasive biomarkers for testicular injury; however, their sensitivities are low. Therefore, it is difficult to monitor testicular injury in drug development. In recent years, molecules in body fluid exosomes have attracted attention as biomarkers for diseases. In this study, small RNAs in serum exosomes were analyzed to identify noninvasive biomarkers of testicular injury in rats, which are often used in preclinical drug development. The rat models of testicular injury were prepared by a single oral administration of 2000 mg/kg ethylene glycol monomethyl ether, in which spermatocyte degeneration and Sertoli cell vacuolation were observed, or 400 mg/kg carbendazim, in which Sertoli cell vacuolation and seminiferous tubule dilation were observed. Serum exosomal small RNA-seq analysis of these models was performed. The analysis identified 3 small RNAs that fluctuated in common between the models, and miR-423-5p and miR-128-3p were selected as candidate markers. For evaluating these candidate markers in other testicular injury models, the models were prepared by a single oral administration of 60 mg/kg 1,3-dinitrobenzene or 500 mg/kg nitrofurazone, and spermatocyte degeneration and Sertoli cell vacuolation were observed. In qPCR analysis, these exosomal miRNAs were upregulated in all models except for the 1,3-dinitrobenzene model, in which severe hemolysis was observed. By contrast, these miRNAs in whole serum extracts did not significantly change in any of the models. In conclusion, we identified miR-423-5p and miR-128-3p in serum exosomes as noninvasive biomarkers for testicular injury in rats.
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Affiliation(s)
- Reo Kawata
- Department of Drug Safety Sciences, Division of Clinical Pharmacology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan; Department of Investigative Toxicology, Nonclinical Research Center, Tokushima Research Institute, Otsuka Pharmaceutical Co., Ltd., 463-10 Kagasuno, Kawauchi-cho, Tokushima 771-0192, Japan
| | - Takumi Kagawa
- Department of Drug Safety Sciences, Division of Clinical Pharmacology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan
| | - Yoshihiro Koya
- Bell Research Center Obstetrics and Gynecology, Academic Research & Industrial-Academia Collaboration, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan
| | - Hiroaki Kajiyama
- Department of Obstetrics and Gynecology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan
| | - Shingo Oda
- Department of Drug Safety Sciences, Division of Clinical Pharmacology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan
| | - Tsuyoshi Yokoi
- Department of Drug Safety Sciences, Division of Clinical Pharmacology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan.
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