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Chang TY, Wang LK, Kuo YH, Chen CY, Pai TW, Chen CP. Interferon-stimulated gene 15 polymorphisms are associated with spontaneous preterm birth in Taiwanese women. Am J Reprod Immunol 2023; 90:e13790. [PMID: 38009059 DOI: 10.1111/aji.13790] [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: 02/26/2023] [Revised: 09/22/2023] [Accepted: 10/09/2023] [Indexed: 11/28/2023] Open
Abstract
PROBLEM Immune and inflammatory responses are known to be major causes of preterm birth (PTB). The maternal genetic background plays an important role in the development of PTB. Interferon-stimulated gene 15 (ISG15) is an interferon-induced protein which can modulate immune cell activation and function. We aim to study if polymorphisms in the ISG15 gene are associated with spontaneous PTB (sPTB) risk in Taiwanese women. METHOD OF STUDY ISG15 rs4615788 C/G, rs1921 G/A, and rs8997 A/G polymorphisms were genotyped in a hospital-based study of 112 women with sPTB and 1120 term controls. The plasma concentrations of ISG15 were determined by enzyme-linked immunosorbent assay. RESULTS We found the ISG15 rs1921 G-rs8997 A haplotype was associated with decreased risk for PTB (χ2 = 6.26, p = .01, pc = .04). The A/G genotype of ISG15 rs8997 polymorphism might have the potential to confer reduced risk of PTB women (χ2 = 4.09, p = .04, pc = .08). Spontaneous PTB women displayed higher plasma ISG15 levels compared to term controls (p < .001). The plasma ISG15 levels among pregnant women with rs8997 A/G genotype were found significantly lower compared to G/G genotype (p = .03). CONCLUSIONS Women with the ISG15 rs1921 G-rs8997 A haplotype may associate with spontaneous PTB. These findings provide new insights into the etiology of preterm birth.
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Affiliation(s)
- Tzu-Yang Chang
- Department of Medical Research, MacKay Memorial Hospital, Taipei, Taiwan
| | - Liang-Kai Wang
- Division of High Risk Pregnancy, MacKay Memorial Hospital, Taipei, Taiwan
| | - Yi-Hsiu Kuo
- Department of Medical Research, MacKay Memorial Hospital, Taipei, Taiwan
| | - Chia-Yu Chen
- Department of Medical Research, MacKay Memorial Hospital, Taipei, Taiwan
| | - Tun-Wen Pai
- Department of Computer Science and Information Engineering, National Taipei University of Technology, Taipei, Taiwan
| | - Chie-Pein Chen
- Department of Medical Research, MacKay Memorial Hospital, Taipei, Taiwan
- Division of High Risk Pregnancy, MacKay Memorial Hospital, Taipei, Taiwan
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The diverse repertoire of ISG15: more intricate than initially thought. Exp Mol Med 2022; 54:1779-1792. [PMID: 36319753 PMCID: PMC9722776 DOI: 10.1038/s12276-022-00872-3] [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: 03/18/2022] [Revised: 08/03/2022] [Accepted: 08/08/2022] [Indexed: 11/05/2022] Open
Abstract
ISG15, the product of interferon (IFN)-stimulated gene 15, is the first identified ubiquitin-like protein (UBL), which plays multifaceted roles not only as a free intracellular or extracellular molecule but also as a post-translational modifier in the process of ISG15 conjugation (ISGylation). ISG15 has only been identified in vertebrates, indicating that the functions of ISG15 and its conjugation are restricted to higher eukaryotes and have evolved with IFN signaling. Despite the highlighted complexity of ISG15 and ISGylation, it has been suggested that ISG15 and ISGylation profoundly impact a variety of cellular processes, including protein translation, autophagy, exosome secretion, cytokine secretion, cytoskeleton dynamics, DNA damage response, telomere shortening, and immune modulation, which emphasizes the necessity of reassessing ISG15 and ISGylation. However, the underlying mechanisms and molecular consequences of ISG15 and ISGylation remain poorly defined, largely due to a lack of knowledge on the ISG15 target repertoire. In this review, we provide a comprehensive overview of the mechanistic understanding and molecular consequences of ISG15 and ISGylation. We also highlight new insights into the roles of ISG15 and ISGylation not only in physiology but also in the pathogenesis of various human diseases, especially in cancer, which could contribute to therapeutic intervention in human diseases.
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Ozmen A, Guzeloglu-Kayisli O, Tabak S, Guo X, Semerci N, Nwabuobi C, Larsen K, Wells A, Uyar A, Arlier S, Wickramage I, Alhasan H, Totary-Jain H, Schatz F, Odibo AO, Lockwood CJ, Kayisli UA. Preeclampsia is Associated With Reduced ISG15 Levels Impairing Extravillous Trophoblast Invasion. Front Cell Dev Biol 2022; 10:898088. [PMID: 35837332 PMCID: PMC9274133 DOI: 10.3389/fcell.2022.898088] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Accepted: 06/06/2022] [Indexed: 01/29/2023] Open
Abstract
Among several interleukin (IL)-6 family members, only IL-6 and IL-11 require a gp130 protein homodimer for intracellular signaling due to lack of intracellular signaling domain in the IL-6 receptor (IL-6R) and IL-11R. We previously reported enhanced decidual IL-6 and IL-11 levels at the maternal-fetal interface with significantly higher peri-membranous IL-6 immunostaining in adjacent interstitial trophoblasts in preeclampsia (PE) vs. gestational age (GA)-matched controls. This led us to hypothesize that competitive binding of these cytokines to the gp130 impairs extravillous trophoblast (EVT) differentiation, proliferation and/or invasion. Using global microarray analysis, the current study identified inhibition of interferon-stimulated gene 15 (ISG15) as the only gene affected by both IL-6 plus IL-11 vs. control or IL-6 or IL-11 treatment of primary human cytotrophoblast cultures. ISG15 immunostaining was specific to EVTs among other trophoblast types in the first and third trimester placental specimens, and significantly lower ISG15 levels were observed in EVT from PE vs. GA-matched control placentae (p = 0.006). Induction of primary trophoblastic stem cell cultures toward EVT linage increased ISG15 mRNA levels by 7.8-fold (p = 0.004). ISG15 silencing in HTR8/SVneo cultures, a first trimester EVT cell line, inhibited invasion, proliferation, expression of ITGB1 (a cell migration receptor) and filamentous actin while increasing expression of ITGB4 (a receptor for hemi-desmosomal adhesion). Moreover, ISG15 silencing further enhanced levels of IL-1β-induced pro-inflammatory cytokines (CXCL8, IL-6 and CCL2) in HTR8/SVneo cells. Collectively, these results indicate that ISG15 acts as a critical regulator of EVT morphology and function and that diminished ISG15 expression is associated with PE, potentially mediating reduced interstitial trophoblast invasion and enhancing local inflammation at the maternal-fetal interface. Thus, agents inducing ISG15 expression may provide a novel therapeutic approach in PE.
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Affiliation(s)
- Asli Ozmen
- Department of Obstetrics and Gynecology, Morsani College of Medicine, University of South Florida, Tampa, FL, United States
| | - Ozlem Guzeloglu-Kayisli
- Department of Obstetrics and Gynecology, Morsani College of Medicine, University of South Florida, Tampa, FL, United States
| | - Selcuk Tabak
- Department of Obstetrics and Gynecology, Morsani College of Medicine, University of South Florida, Tampa, FL, United States
| | - Xiaofang Guo
- Department of Obstetrics and Gynecology, Morsani College of Medicine, University of South Florida, Tampa, FL, United States
| | - Nihan Semerci
- Department of Obstetrics and Gynecology, Morsani College of Medicine, University of South Florida, Tampa, FL, United States
| | - Chinedu Nwabuobi
- Department of Obstetrics and Gynecology, Morsani College of Medicine, University of South Florida, Tampa, FL, United States
| | - Kellie Larsen
- Department of Obstetrics and Gynecology, Morsani College of Medicine, University of South Florida, Tampa, FL, United States
| | - Ali Wells
- Department of Obstetrics and Gynecology, Morsani College of Medicine, University of South Florida, Tampa, FL, United States
| | - Asli Uyar
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale University School of Medicine, New Haven, CT, United States
| | - Sefa Arlier
- Department of Obstetrics and Gynecology, Morsani College of Medicine, University of South Florida, Tampa, FL, United States
| | - Ishani Wickramage
- Department of Molecular Pharmacology and Physiology, Morsani College of Medicine, University of South Florida, Tampa, FL, United States
| | - Hasan Alhasan
- Department of Obstetrics and Gynecology, Morsani College of Medicine, University of South Florida, Tampa, FL, United States
| | - Hana Totary-Jain
- Department of Molecular Pharmacology and Physiology, Morsani College of Medicine, University of South Florida, Tampa, FL, United States
| | - Frederick Schatz
- Department of Obstetrics and Gynecology, Morsani College of Medicine, University of South Florida, Tampa, FL, United States
| | - Anthony O. Odibo
- Divisions of Maternal-Fetal Medicine and Ultrasound, Department of Obstetrics and Gynecology, Washington University School of Medicine, St. Louis, MO, United States
| | - Charles J. Lockwood
- Department of Obstetrics and Gynecology, Morsani College of Medicine, University of South Florida, Tampa, FL, United States
| | - Umit A. Kayisli
- Department of Obstetrics and Gynecology, Morsani College of Medicine, University of South Florida, Tampa, FL, United States,*Correspondence: Umit A. Kayisli,
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Ding J, Maxwell A, Adzibolosu N, Hu A, You Y, Liao A, Mor G. Mechanisms of immune regulation by the placenta: Role of type I interferon and interferon‐stimulated genes signaling during pregnancy*. Immunol Rev 2022; 308:9-24. [DOI: 10.1111/imr.13077] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 03/08/2022] [Accepted: 03/12/2022] [Indexed: 12/18/2022]
Affiliation(s)
- Jiahui Ding
- C.S Mott Center for Human Growth and Development Department of Obstetrics and Gynecology Wayne State University Detroit Michigan USA
| | - Anthony Maxwell
- C.S Mott Center for Human Growth and Development Department of Obstetrics and Gynecology Wayne State University Detroit Michigan USA
- Department of Physiology Wayne State University Detroit Michigan USA
| | - Nicholas Adzibolosu
- C.S Mott Center for Human Growth and Development Department of Obstetrics and Gynecology Wayne State University Detroit Michigan USA
- Department of Physiology Wayne State University Detroit Michigan USA
| | - Anna Hu
- C.S Mott Center for Human Growth and Development Department of Obstetrics and Gynecology Wayne State University Detroit Michigan USA
| | - Yuan You
- C.S Mott Center for Human Growth and Development Department of Obstetrics and Gynecology Wayne State University Detroit Michigan USA
| | - Aihua Liao
- Institute of Reproductive Health Center for Reproductive Medicine Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Gil Mor
- C.S Mott Center for Human Growth and Development Department of Obstetrics and Gynecology Wayne State University Detroit Michigan USA
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Wu SF, Xia L, Shi XD, Dai YJ, Zhang WN, Zhao JM, Zhang W, Weng XQ, Lu J, Le HY, Tao SC, Zhu J, Chen Z, Wang YY, Chen S. RIG-I regulates myeloid differentiation by promoting TRIM25-mediated ISGylation. Proc Natl Acad Sci U S A 2020; 117:14395-14404. [PMID: 32513696 PMCID: PMC7322067 DOI: 10.1073/pnas.1918596117] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Retinoic acid-inducible gene I (RIG-I) is up-regulated during granulocytic differentiation of acute promyelocytic leukemia (APL) cells induced by all-trans retinoic acid (ATRA). It has been reported that RIG-I recognizes virus-specific 5'-ppp-double-stranded RNA (dsRNA) and activates the type I interferons signaling pathways in innate immunity. However, the functions of RIG-I in hematopoiesis remain unclear, especially regarding its possible interaction with endogenous RNAs and the associated pathways that could contribute to the cellular differentiation and maturation. Herein, we identified a number of RIG-I-binding endogenous RNAs in APL cells following ATRA treatment, including the tripartite motif-containing protein 25 (TRIM25) messenger RNA (mRNA). TRIM25 encodes the protein known as an E3 ligase for ubiquitin/interferon (IFN)-induced 15-kDa protein (ISG15) that is involved in RIG-I-mediated antiviral signaling. We show that RIG-I could bind TRIM25 mRNA via its helicase domain and C-terminal regulatory domain, enhancing the stability of TRIM25 transcripts. RIG-I could increase the transcriptional expression of TRIM25 by caspase recruitment domain (CARD) domain through an IFN-stimulated response element. In addition, RIG-I activated other key genes in the ISGylation pathway by activating signal transducer and activator of transcription 1 (STAT1), including the modifier ISG15 and several enzymes responsible for the conjugation of ISG15 to protein substrates. RIG-I cooperated with STAT1/2 and interferon regulatory factor 1 (IRF1) to promote the activation of the ISGylation pathway. The integrity of ISGylation in ATRA or RIG-I-induced cell differentiation was essential given that knockdown of TRIM25 or ISG15 resulted in significant inhibition of this process. Our results provide insight into the role of the RIG-I-TRIM25-ISGylation axis in myeloid differentiation.
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Affiliation(s)
- Song-Fang Wu
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, National Research Center for Translational Medicine at Shanghai, Rui Jin Hospital affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
- Key Laboratory of Systems Biomedicine (Ministry of Education), Shanghai Center for Systems Biomedicine, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Li Xia
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, National Research Center for Translational Medicine at Shanghai, Rui Jin Hospital affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Xiao-Dong Shi
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, National Research Center for Translational Medicine at Shanghai, Rui Jin Hospital affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Yu-Jun Dai
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, National Research Center for Translational Medicine at Shanghai, Rui Jin Hospital affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Wei-Na Zhang
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, National Research Center for Translational Medicine at Shanghai, Rui Jin Hospital affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Jun-Mei Zhao
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, National Research Center for Translational Medicine at Shanghai, Rui Jin Hospital affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Wu Zhang
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, National Research Center for Translational Medicine at Shanghai, Rui Jin Hospital affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Xiang-Qin Weng
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, National Research Center for Translational Medicine at Shanghai, Rui Jin Hospital affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Jing Lu
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, National Research Center for Translational Medicine at Shanghai, Rui Jin Hospital affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Huang-Ying Le
- Key Laboratory of Systems Biomedicine (Ministry of Education), Shanghai Center for Systems Biomedicine, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Sheng-Ce Tao
- Key Laboratory of Systems Biomedicine (Ministry of Education), Shanghai Center for Systems Biomedicine, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Jiang Zhu
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, National Research Center for Translational Medicine at Shanghai, Rui Jin Hospital affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Zhu Chen
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, National Research Center for Translational Medicine at Shanghai, Rui Jin Hospital affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China;
- Key Laboratory of Systems Biomedicine (Ministry of Education), Shanghai Center for Systems Biomedicine, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yue-Ying Wang
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, National Research Center for Translational Medicine at Shanghai, Rui Jin Hospital affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China;
| | - Saijuan Chen
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, National Research Center for Translational Medicine at Shanghai, Rui Jin Hospital affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China;
- Key Laboratory of Systems Biomedicine (Ministry of Education), Shanghai Center for Systems Biomedicine, Shanghai Jiao Tong University, Shanghai 200240, China
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Integrated Analysis of miRNA-mRNA Network Reveals Different Regulatory Patterns in the Endometrium of Meishan and Duroc Sows during Mid-Late Gestation. Animals (Basel) 2020; 10:ani10030420. [PMID: 32138165 PMCID: PMC7143271 DOI: 10.3390/ani10030420] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 02/29/2020] [Accepted: 03/01/2020] [Indexed: 12/15/2022] Open
Abstract
Simple Summary Meishan pigs have a lower fetal loss rate during mid-late gestation compared to Duroc pigs. Differentially expressed mRNAs and miRNAs detected in endometrial tissue from Meishan and Duroc sows at mid-late gestation are involved in regulating hormone and oxygen levels, blood vessel development, and developmental processes affecting reproduction. In addition, ssc-miR-503 and ssc-miR-671-5p were shown to target the EGF and ESR1 genes, respectively. These findings provided an important resource for studying embryonic mortality during mid-late gestation in pigs. Abstract Embryo loss is a major factor affecting profitability in the pig industry. Embryonic mortality occurs during peri-implantation and mid-late gestation in pigs. Previous investigations have shown that the embryo loss rate in Meishan pigs is significantly lower than in commercial breeds. Most studies have focused on embryonic mortality during early gestation, but little is known about losses during mid-late gestation. In this study, we performed a transcriptome analysis of endometrial tissue in mid-late gestation sows (gestation days 49 and 72) sampled from two breeds (Meishan (MS) and Duroc (DU)) that have different embryo loss rates. We identified 411, 1113, 697, and 327 differentially expressed genes, and 14, 36, 57, and 43 differentially expressed miRNAs in four comparisons (DU49 vs. DU72, DU49 vs. MS49, DU72 vs. MS72, and MS49 vs. MS72), respectively. Subsequently; seven differentially expressed mRNAs and miRNAs were validated using qPCR. Functional analysis suggested the differentially expressed genes and miRNAs target genes mainly involved in regulation of hormone levels, blood vessel development, developmental process involved in reproduction, embryonic placenta development, and the immune system. A network analysis of potential miRNA-gene interactions revealed that differentially expressed miRNAs in Meishan pigs are involved in the response to estradiol and oxygen levels, and affect angiogenesis and blood vessel development. The binding site on ssc-miR-503 for epidermal growth factor (EGF) and the binding site on ssc-miR-671-5p for estrogen receptor α (ESR1) were identified using a dual luciferase assay. The results of this study will enable further exploration of miRNA-mRNA interactions important in pig pregnancy and will help to uncover molecular mechanisms affecting embryonic mortality in pigs during mid-late gestation.
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Chandrakar K, Jain A, Khan JR, Jain T, Singh M, Mishra OP. Molecular characterization and expression profile of interferon-stimulated gene 15 (ISG15) in the endometrium of goat (Capra hircus). Theriogenology 2019; 142:348-354. [PMID: 31711698 DOI: 10.1016/j.theriogenology.2019.10.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2019] [Revised: 09/17/2019] [Accepted: 10/13/2019] [Indexed: 11/28/2022]
Abstract
Interferon-stimulated gene 15 (ISG15), a ubiquitin-like protein, is responsible for uterine receptivity, implantation and conceptus development in different ruminant species, but in goat (Capra hircus) its role is yet to be explicated. In the present study, the ISG15 gene was cloned, characterized and its temporal expression profile was examined in the endometrium of caprine (cp). A fragment of cpISG15 gene, 1033 bp in length, was amplified, cloned and sequenced from genomic DNA covering the coding region. Sequence analysis of cpISG15 gene revealed that it was comprised of two exons of 59 bp and 496 bp encoding a peptide of 157 amino acids. Complementary DNA (cDNA) and deduced amino acid sequences of cpISG15 exhibited 99 and 98, 93 and 88, 94 and 89, 76 and 66, and 73 and 62% identity with that of sheep, cattle, buffalo, human and mice, respectively. Further, relative expression of cpISG15 mRNA and protein was determined by quantitative real-time PCR (qPCR) and Western blot, respectively, in the endometrium of pregnant and cyclic does. Both cpISG15 mRNA and protein were expressed maximally (P < 0.05) in the endometrium during early stage of pregnancy (16-24 d) as compared to cyclic does, but no significant difference was observed in cpISG15 mRNA and protein expression in the endometrium between the later stage of pregnancy (25-40 d) and cyclic does. It is concluded that cpISG15 is almost similar in structure and probably in function also to other species as it has been found significantly upregulated during early pregnancy.
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Affiliation(s)
- K Chandrakar
- Veterinary Assistant Surgeon, Govt. of Chhattisgarh, Mahasamund, Chhattisgarh, India
| | - A Jain
- Molecular Genetics Laboratory, Department of Animal Genetics and Breeding, College of Veterinary Science and Animal Husbandry, CGKV, Anjora, Durg, Chhattisgarh, India.
| | - J R Khan
- Department of Veterinary Physiology and Biochemistry, College of Veterinary Science and Animal Husbandry, CGKV, Anjora, Durg, Chhattisgarh, India
| | - T Jain
- Animal Biotechnology Centre, CGKV, Durg, Chhattisgarh, India
| | - M Singh
- Molecular Genetics Laboratory, Department of Animal Genetics and Breeding, College of Veterinary Science and Animal Husbandry, CGKV, Anjora, Durg, Chhattisgarh, India
| | - O P Mishra
- Department of Veterinary Physiology and Biochemistry, College of Veterinary Science and Animal Husbandry, CGKV, Anjora, Durg, Chhattisgarh, India
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Soumya NP, Das DN, Jeyakumar S, Mondal S, Mor A, Mundhe UT. Differential expression of ISG 15 mRNA in peripheral blood mononuclear cells of nulliparous and multiparous pregnant versus non-pregnant Bos indicus cattle. Reprod Domest Anim 2016; 52:97-106. [PMID: 27766692 DOI: 10.1111/rda.12815] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2016] [Accepted: 08/29/2016] [Indexed: 11/27/2022]
Abstract
Embryonic mortality is found to be the main source of reproductive wastage in domestic ruminants. Many genes are involved in the growth and development of the embryo, and the interferon-stimulated gene 15 (ISG 15) is one of the major gene stimulated by interferon tau, the maternal recognition of pregnancy signal in ruminants. In this study, both genomic and cDNA sequences of ISG 15 from Bos indicus (Deoni breed) were amplified and characterized. The genomic sequence of Deoni ISG 15 exhibited 99% identity with Bos taurus and 97% identity with that of Bos mutus and Bubalus bubalis. Moreover qRT-PCR analysis revealed constitutive expression of the ISG 15 mRNA in peripheral blood mononuclear cells of Deoni heifers and multiparous cows during early pregnancy. Fourteen Deoni heifers and fifteen multiparous Deoni cows were synchronized for timed AI by CIDR-Ovsynch protocol, and six animals were kept as cyclic control in each group. Blood samples were collected on days 7, 14, 16, 18, 21, 30 and 45 from the day of AI. Pregnancy was confirmed by plasma progesterone level through ELISA. A significantly higher expression of ISG 15 mRNA was found on day 16 (p < .05) and day 18 (p < .05) of pregnancy in nulliparous heifers. Although in multiparous Deoni cows ISG 15 expression was greater in pregnant cows, difference was statistically non-significant. The result of this study indicates that ISG 15 gene expression is upregulated during 16-18 days of pregnancy and could be used as an early pregnancy marker in dairy cows especially in heifers.
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Affiliation(s)
- N P Soumya
- Genetics Lab, Dairy Production Section, ICAR-National Dairy Research Institute, Southern Regional Station, Bengaluru, India
| | - D N Das
- Genetics Lab, Dairy Production Section, ICAR-National Dairy Research Institute, Southern Regional Station, Bengaluru, India
| | - S Jeyakumar
- Livestock Research Centre, ICAR-National Dairy Research Institute, Southern Regional Station, Bengaluru, India
| | - S Mondal
- ICAR-National Institute of Animal Nutrition and Physiology, Bengaluru, India
| | - A Mor
- ICAR-National Institute of Animal Nutrition and Physiology, Bengaluru, India
| | - U T Mundhe
- Genetics Lab, ICAR-National Dairy Research Institute, Bengaluru, India
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