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Cañón-Beltrán K, García-García RM, Cajas YN, Fierro N, Lorenzo PL, Arias-Álvarez M. Improvement of oocyte competence and in vitro oocyte maturation with EGF and IGF-I in Guinea pig model. Theriogenology 2024; 214:206-214. [PMID: 37907035 DOI: 10.1016/j.theriogenology.2023.10.029] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 10/21/2023] [Accepted: 10/23/2023] [Indexed: 11/02/2023]
Abstract
In vitro maturation (IVM) system is an alternative method to superovulation protocols to obtain mature oocytes. Epidermal Growth Factor (EGF) and Insulin-like Growth Factor I (IGF-I) have been widely used in IVM medium in different species. Although the guinea pig is a valuable animal model for reproductive studies, IVM is rarely used. We aimed to establish a suitable in vitro production system using EGF and/or IGF-I during IVM to improve oocyte competence. Firstly, immunolocalization of EGF and IGF-I receptors in the ovary was assessed. An IVM dose-response experiment was performed with cumulus-oocyte complexes (COCs) supplemented with: 1) EGF [0, 10, 50, 100 ng/mL or 10% fetal calf serum (FCS)]; 2) IGF-I [0, 50, 100, 200 ng/mL or 10% FCS]; or 3) the concentrations of EGF and IGF-I which showed the best IVM index in the previous experiments, with or without Fetal Calf Serum (FCS). Cortical granule and mitochondria distribution patterns were determined in in vivo and in vitro-matured oocytes for the first time in this species. Apoptotic rate after IVM and oocyte competence by in vitro embryo development were evaluated. Immunohistochemistry results showed positive immunostaining of EGF and IGF receptors in corpus luteum, oocytes, granulosa and theca cells in follicles in all stages of development. Supplementation of IVM medium with 50 ng/mL EGF or 100 ng/mL IGF-I or their combination with FCS successfully led to oocyte nuclear and cytoplasmic maturation and reduced the apoptotic rate. Both growth factors improved oocyte competence during IVM in this species since early embryos were in vitro developed, showing better results when FCS was used in the IVM medium.
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Affiliation(s)
- Karina Cañón-Beltrán
- Department of Physiology, Veterinary Faculty, Complutense University of Madrid - UCM, 28040, Spain; Departamento de Ciencias Biológicas, Universidad Técnica Particular de Loja - UTPL, Loja, 11-01-608, Ecuador.
| | - Rosa M García-García
- Department of Physiology, Veterinary Faculty, Complutense University of Madrid - UCM, 28040, Spain
| | - Yulia N Cajas
- Laboratorio de Biotecnología de la Reproducción Animal, Facultad de Ciencias Agropecuarias, Universidad de Cuenca (UC), Cuenca, EC010205, Ecuador
| | - Natacha Fierro
- Departamento de Ciencias Biológicas, Universidad Técnica Particular de Loja - UTPL, Loja, 11-01-608, Ecuador
| | - Pedro L Lorenzo
- Department of Physiology, Veterinary Faculty, Complutense University of Madrid - UCM, 28040, Spain
| | - María Arias-Álvarez
- Department of Animal Production, Veterinary Faculty, Complutense University of Madrid - UCM, 28040, Spain.
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Asmaz ED, Seyidoglu N. The prevention role of Spirulina platensis (Arthrospira platensis) on intestinal health. FOOD SCIENCE AND HUMAN WELLNESS 2022. [DOI: 10.1016/j.fshw.2022.04.027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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3
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Mutation Status and Immunohistochemical Correlation of EGFR Mutations in Gastrointestinal Stromal Tumors. Balkan J Med Genet 2021; 24:67-72. [PMID: 34447661 PMCID: PMC8366477 DOI: 10.2478/bjmg-2021-0006] [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] [Indexed: 11/20/2022] Open
Abstract
Being one of the leading causes of cancer deaths worldwide and their resistance to conventional treatment methods, made gastrointestinal stromal tumors (GISTs) one of the hot topics in medical research areas in the past decade. To investigate molecular alterations underlying the tumor is of great importance to be able to develop new, targeted treatment options. In this study, GIST samples obtained from 40 Turkish patients were analyzed for actionable epidermal growth factor receptor (EGFR) mutations that are related to treatment regimes in non small cell lung cancer (NSCLC) to understand whether EGFR expression is altered in GISTs. Established alterations in EGFR can make the use of tyrosine kinase inhibitors possible, which are currently used in cancer therapy, especially in NSCLC. Our results indicated that EGFR mutations are rare in GISTs. Further research is needed to sequence whole coding regions of the gene to investigate new actionable mutations in EGFR in an increased sample size.
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Evolution and conservation of Characidium sex chromosomes. Heredity (Edinb) 2017; 119:237-244. [PMID: 28745717 DOI: 10.1038/hdy.2017.43] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Revised: 06/23/2017] [Accepted: 06/26/2017] [Indexed: 01/02/2023] Open
Abstract
Fish species exhibit substantial variation in the degree of genetic differentiation between sex chromosome pairs, and therefore offer the opportunity to study the full range of sex chromosome evolution. We used restriction-site associated DNA sequencing (RAD-seq) to study the sex chromosomes of Characidium gomesi, a species with conspicuous heteromorphic ZW/ZZ sex chromosomes. We screened 9863 single-nucleotide polymorphisms (SNPs), corresponding to ~1 marker/100 kb distributed across the genome for sex-linked variation. With this data set, we identified 26 female-specific RAD loci, putatively located on the W chromosome, as well as 148 sex-associated SNPs showing significant differentiation (average FST=0.144) between males and females, and therefore in regions of more recent divergence between the Z and W chromosomes. In addition, we detected 25 RAD loci showing extreme heterozygote deficiency in females but which were in Hardy-Weinberg equilibrium in males, consistent with degeneration of the W chromosome and therefore female hemizygosity. We validated seven female-specific and two sex-associated markers in a larger sample of C. gomesi, of which three localised to the W chromosome, thereby providing useful markers for sexing wild samples. Validated markers were evaluated in other populations and species of the genus Characidium, this exploration suggesting a rapid turnover of W-specific repetitive elements. Together, our analyses point to a complex origin for the sex chromosome of C. gomesi and highlight the utility of RAD-seq for studying the composition and evolution of sex chromosomes systems in wild populations.
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Shi SS, Wu N, He Y, Wei X, Xia QY, Wang X, Ye SB, Li R, Rao Q, Zhou XJ. EGFR
gene mutation in gastrointestinal stromal tumours. Histopathology 2017; 71:553-561. [PMID: 28485054 DOI: 10.1111/his.13251] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Accepted: 05/04/2017] [Indexed: 12/22/2022]
Affiliation(s)
- Shan-Shan Shi
- Department of Pathology; Jinling Hospital; Clinical Medical School of Southern Medical University; Nanjing China
| | - Nan Wu
- Department of Pathology; Jinling Hospital; Clinical Medical School of Southern Medical University; Nanjing China
| | - Yan He
- Department of Pathology; Jinling Hospital; Clinical Medical School of Southern Medical University; Nanjing China
| | - Xue Wei
- Department of Pathology; Jinling Hospital; Clinical Medical School of Southern Medical University; Nanjing China
| | - Qiu-Yuan Xia
- Department of Pathology; Jinling Hospital; Clinical Medical School of Southern Medical University; Nanjing China
| | - Xuan Wang
- Department of Pathology; Jinling Hospital; Clinical Medical School of Southern Medical University; Nanjing China
| | - Sheng-Bin Ye
- Department of Pathology; Jinling Hospital; Clinical Medical School of Southern Medical University; Nanjing China
| | - Rui Li
- Department of Pathology; Jinling Hospital; Clinical Medical School of Southern Medical University; Nanjing China
| | - Qiu Rao
- Department of Pathology; Jinling Hospital; Clinical Medical School of Southern Medical University; Nanjing China
| | - Xiao-Jun Zhou
- Department of Pathology; Jinling Hospital; Clinical Medical School of Southern Medical University; Nanjing China
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Kim YY, Tamadon A, Ku SY. Potential Use of Antiapoptotic Proteins and Noncoding RNAs for EfficientIn VitroFollicular Maturation and Ovarian Bioengineering. TISSUE ENGINEERING PART B-REVIEWS 2017; 23:142-158. [PMID: 27763207 DOI: 10.1089/ten.teb.2016.0156] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Yoon Young Kim
- Department of Obstetrics and Gynecology, Seoul National University Hospital, Seoul, South Korea
| | - Amin Tamadon
- Department of Obstetrics and Gynecology, Seoul National University Hospital, Seoul, South Korea
| | - Seung-Yup Ku
- Department of Obstetrics and Gynecology, Seoul National University Hospital, Seoul, South Korea
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Xia XJ, Gao YY, Zhang J, Wang L, Zhao S, Che YY, Ao CJ, Yang HJ, Wang JQ, Lei LC. Autophagy mediated by arginine depletion activation of the nutrient sensor GCN2 contributes to interferon-γ-induced malignant transformation of primary bovine mammary epithelial cells. Cell Death Discov 2016; 2:15065. [PMID: 27551491 PMCID: PMC4979444 DOI: 10.1038/cddiscovery.2015.65] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2015] [Revised: 11/19/2015] [Accepted: 11/22/2015] [Indexed: 12/26/2022] Open
Abstract
Autophagy has been linked to the regulation of both the prevention and progression of cancer. IFN-γ has been shown to induce autophagy in multiple cell lines in vitro. However, whether IFN-γ can induce autophagy and whether autophagy promotes malignant transformation in healthy lactating bovine mammary epithelial cells (BMECs) remain unclear. Here, we provide the first evidence of the correlation between IFN-γ treatment, autophagy and malignant transformation and of the mechanism underlying IFN-γ-induced autophagy and subsequent malignant transformation in primary BMECs. IFN-γ levels were significantly increased in cattle that received normal long-term dietary corn straw (CS) roughage supplementation. In addition, an increase in autophagy was clearly observed in the BMECs from the mammary tissue of cows expressing high levels of IFN-γ. In vitro, autophagy was clearly induced in primary BMECs by IFN-γ within 24 h. This induced autophagy could subsequently promote dramatic primary BMEC transformation. Furthermore, we found that IFN-γ promoted arginine depletion, activated the general control nonderepressible-2 kinase (GCN2) signalling pathway and resulted in an increase in autophagic flux and the amount of autophagy in BMECs. Overall, our findings are the first to demonstrate that arginine depletion and kinase GCN2 expression mediate IFN-γ-induced autophagy that may promote malignant progression and that immunometabolism, autophagy and cancer are strongly correlated. These results suggest new directions and paths for preventing and treating breast cancer in relation to diet.
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Affiliation(s)
- X-J Xia
- College of Veterinary Medicine, Jilin University , Changchun, PR China
| | - Y-Y Gao
- College of Animal Science, Jilin University , Changchun, PR China
| | - J Zhang
- Changchun University of Chinese Medicine , Changchun, PR China
| | - L Wang
- College of Animal Science, Henan Institute of Science and Technology , Xinxiang, PR China
| | - S Zhao
- College of Animal Science, Jilin University , Changchun, PR China
| | - Y-Y Che
- College of Veterinary Medicine, Jilin University , Changchun, PR China
| | - C-J Ao
- College of Animal Science, Inner Mongolian Agricultural University , Hohhot, PR China
| | - H-J Yang
- College of Animal Science and Technology, China Agricultural University , Beijing, PR China
| | - J-Q Wang
- Institute of Animal Science, Chinese Academy of Agricultural Science , Beijing, PR China
| | - L-C Lei
- College of Veterinary Medicine, Jilin University , Changchun, PR China
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Ahlawat S, Sharma R, Maitra A, Roy M, Tantia M. Designing, optimization and validation of tetra-primer ARMS PCR protocol for genotyping mutations in caprine Fec genes. Meta Gene 2014; 2:439-49. [PMID: 25606428 PMCID: PMC4287864 DOI: 10.1016/j.mgene.2014.05.004] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2014] [Revised: 05/27/2014] [Accepted: 05/31/2014] [Indexed: 11/26/2022] Open
Abstract
New, quick, and inexpensive methods for genotyping novel caprine Fec gene polymorphisms through tetra-primer ARMS PCR were developed in the present investigation. Single nucleotide polymorphism (SNP) genotyping needs to be attempted to establish association between the identified mutations and traits of economic importance. In the current study, we have successfully genotyped three new SNPs identified in caprine fecundity genes viz. T(-242)C (BMPR1B), G1189A (GDF9) and G735A (BMP15). Tetra-primer ARMS PCR protocol was optimized and validated for these SNPs with short turn-around time and costs. The optimized techniques were tested on 158 random samples of Black Bengal goat breed. Samples with known genotypes for the described genes, previously tested in duplicate using the sequencing methods, were employed for validation of the assay. Upon validation, complete concordance was observed between the tetra-primer ARMS PCR assays and the sequencing results. These results highlight the ability of tetra-primer ARMS PCR in genotyping of mutations in Fec genes. Any associated SNP could be used to accelerate the improvement of goat reproductive traits by identifying high prolific animals at an early stage of life. Our results provide direct evidence that tetra-primer ARMS-PCR is a rapid, reliable, and cost-effective method for SNP genotyping of mutations in caprine Fec genes.
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Affiliation(s)
- Sonika Ahlawat
- National Bureau of Animal Genetic Resources, Karnal, Haryana 132001, India
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Fong MY, Farghaly H, Kakar SS. Tumorigenic potential of pituitary tumor transforming gene (PTTG) in vivo investigated using a transgenic mouse model, and effects of cross breeding with p53 (+/-) transgenic mice. BMC Cancer 2012; 12:532. [PMID: 23164239 PMCID: PMC3530432 DOI: 10.1186/1471-2407-12-532] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2012] [Accepted: 11/08/2012] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Pituitary tumor-transforming gene (PTTG) is an oncogene that is overexpressed in variety of tumors and exhibits characteristics of a transforming gene. Previous transgenic mouse models to access the tumorigenic potential in the pituitary and ovary have resulted in dysplasia without formation of visible tumors, possibly due to the insufficient expression of PTTG. PTTG expression level is critical for ovarian tumorigenesis in a xenograft model. Therefore, the tumorigenic function of PTTG in vivo remains unclear. We generated a transgenic mouse that overexpresses PTTG driven by the CMV promoter to determine whether PTTG functions as a transforming oncogene that is capable of initiating tumorigenesis. METHODS Transgenic animals were generated by microinjection of PTTG transgene into the male pronucleus of FVB 0.5 day old embryos. Expression levels of PTTG in tissues of transgenic animals were analyzed using an immunohistochemical analysis. H&E staining and immunohistostaining were performed to examine the type of tumor in transgenic and PTTG transgenic/p53+/- animals. RESULTS PTTG transgenic offspring (TgPTTG) were monitored for tumor development at various ages. H&E analysis was performed to identify the presence of cancer and hyperplastic conditions verified with the proliferation marker PCNA and the microvessel marker CD31. Immunohistochemistry was performed to determine transgene expression, revealing localization to the epithelium of the fallopian tube, with more generalized expression in the liver, lung, kidney, and spleen. At eight months of age, 2 out of 15 TgPTTG developed ovarian cancer, 2 out of 15 developed benign tumors, 2 out of 15 developed cervical dysplasia, and 3 out of 15 developed adenomyosis of the uterus. At ten months of age, 2 out of 10 TgPTTG developed adenocarcinoma of the ovary, 1 out of 10 developed a papillary serous adenocarcinoma, and 2 out of 10 presented with atypia of ovarian epithelial cells. Tumorigenesis is a multi-step process, often requiring multiple oncogenes and/or inactivation of tumor suppressor genes. Therefore, to understand the contribution of p53 to PTTG induced tumorigenesis, we crossbred TgPTTG to p53+/- mice and maintained those 8 to 10 months. TgPTTG/p53+/- animals developed sarcomas faster than p53+/- alone as well as different tumor types in addition to cervical carcinomas in situ in 10 out of 17 females. CONCLUSIONS We conclude that while PTTG is a functional transforming oncogene, it requires an additional partner to effectively promote tumorigenesis through the loss of p53 include or between function or modulation.
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Affiliation(s)
- Miranda Y Fong
- Department of Physiology and Biophysics, University of Louisville, 505 South Hancock Street, CTRB 322, Louisville, KY 40202, USA
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Kiran G, Ciralik H, Ozbag D, Coskun A, Kiran H, Arikan DC, Ekerbicer HC. Comparison of transforming growth factor β1 concentrations in the ovaries of rats stimulated by human menopausal gonadotropin or recombinant follicle-stimulating hormone. Eur J Obstet Gynecol Reprod Biol 2012; 163:35-8. [DOI: 10.1016/j.ejogrb.2012.03.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2011] [Revised: 09/28/2011] [Accepted: 03/09/2012] [Indexed: 10/28/2022]
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Lin J, Jia Y, Zeng W, Mi Y, Zhang C. Basic FGF Promotes Proliferation of Ovarian Granulosa Cells in the Laying Chickens Via FGFR1 and PKC Pathway. Reprod Domest Anim 2011; 47:135-42. [DOI: 10.1111/j.1439-0531.2011.01813.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Ding GL, Chen XJ, Luo Q, Dong MY, Wang N, Huang HF. Attenuated oocyte fertilization and embryo development associated with altered growth factor/signal transduction induced by endometriotic peritoneal fluid. Fertil Steril 2010; 93:2538-44. [DOI: 10.1016/j.fertnstert.2009.11.011] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2009] [Revised: 11/02/2009] [Accepted: 11/04/2009] [Indexed: 11/29/2022]
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