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Li X, Cheng J, Yao Q, Duan J, Chen H, Zhang Z, Yang L, Hua R, Li Q. Isorhamnetin Improves Oocyte Maturation by Activating the Pi3k/Akt Signaling Pathway. Mol Nutr Food Res 2024:e2300904. [PMID: 38982688 DOI: 10.1002/mnfr.202300904] [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: 12/19/2023] [Revised: 06/20/2024] [Indexed: 07/11/2024]
Abstract
SCOPE Isorhamnetin is a natural flavonoid with various pharmacological activities, which can be widely and continuously ingested by humans and animals through their daily diet. The aim of this study is to explore the benefits and molecular mechanisms of isorhamnetin on oocyte maturation. METHODS AND RESULTS Oocytes are incubated with isorhamnetin (5, 10, 20, and 30 µM) for 44 h. Isorhamnetin (10 µM) increases the polar body extrusion rate of oocytes. Furthermore, isorhamnetin alleviates oxidative stress by inhibiting reactive oxygen species levels and stimulating SOD2 protein expression. The changes in intracellular mitochondrial autophagy and apoptosis-related proteins (Bcl-2, Bax/Bcl-2, and C-Casp3) indicate that isorhamnetin inhibits oocyte apoptosis. Isorhamnetin inhibits endoplasmic reticulum stress by reducing the protein expression of CHOP and GRP78 and improving the normal distribution rate of endoplasmic reticulum. Mechanistic studies show that isorhamnetin activates the PI3K/Akt signaling pathway. CONCLUSION Isorhamnetin promotes oocyte maturation by inhibiting oxidative stress, mitochondrial dysregulation, apoptosis, and endoplasmic reticulum stress, which have important potential for improving oocyte quality and treating female infertility.
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Affiliation(s)
- Xiaoya Li
- College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, P. R. China
| | - Jianyong Cheng
- College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, P. R. China
| | - Qichun Yao
- College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, P. R. China
| | - Jiaxin Duan
- College of Animal Science and Technology, Shanxi Agricultural University, Taigu, 030031, P. R. China
| | - Huali Chen
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, 621000, P. R. China
| | - Zelin Zhang
- College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, P. R. China
| | - Li Yang
- College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, P. R. China
| | - Rongmao Hua
- College of Pharmacy, Shenzhen Technology University, Shenzhen, 518118, P. R. China
| | - Qingwang Li
- College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, P. R. China
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Moura MLV, de Menezes AAPM, de Oliveira Filho JWG, do Nascimento MLLB, dos Reis AC, Ribeiro AB, da Silva FCC, Nunes AMV, Rolim HML, de Carvalho Melo Cavalcante AA, Sousa JMDCE. Advances in Antitumor Effects Using Liposomal Citrinin in Induced Breast Cancer Model. Pharmaceutics 2024; 16:174. [PMID: 38399235 PMCID: PMC10892831 DOI: 10.3390/pharmaceutics16020174] [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: 08/09/2023] [Revised: 12/19/2023] [Accepted: 12/27/2023] [Indexed: 02/25/2024] Open
Abstract
The study aimed to evaluate the antitumor and toxicogenetic effects of liposomal nanoformulations containing citrinin in animal breast carcinoma induced by 7,12-dimethylbenzanthracene (DMBA). Mus musculus virgin females were divided into six groups treated with (1) olive oil (10 mL/kg); (2) 7,12-DMBA (6 mg/kg); (3) citrinin, CIT (2 mg/kg), (4) cyclophosphamide, CPA (25 mg/kg), (5) liposomal citrinin, LP-CIT (2 μg/kg), and (6) LP-CIT (6 µg/kg). Metabolic, behavioral, hematological, biochemical, histopathological, and toxicogenetic tests were performed. DMBA and cyclophosphamide induced behavioral changes, not observed for free and liposomal citrinin. No hematological or biochemical changes were observed for LP-CIT. However, free citrinin reduced monocytes and caused hepatotoxicity. During treatment, significant differences were observed regarding the weight of the right and left breasts treated with DMBA compared to negative controls. Treatment with CPA, CIT, and LP-CIT reduced the weight of both breasts, with better results for liposomal citrinin. Furthermore, CPA, CIT, and LP-CIT presented genotoxic effects for tumor, blood, bone marrow, and liver cells, although less DNA damage was observed for LP-CIT compared to CIT and CPA. Healthy cell damage induced by LP-CIT was repaired during treatment, unlike CPA, which caused clastogenic effects. Thus, LP-CIT showed advantages for its use as a model of nanosystems for antitumor studies.
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Affiliation(s)
- Michely Laiany Vieira Moura
- Laboratory of Toxicological Genetics—LAPGENIC, Graduate Program in Pharmaceutical Sciences, Federal University of Piauí, Teresina 64049-550, Brazil; (M.L.V.M.); (A.-A.P.M.d.M.); (J.W.G.d.O.F.); (M.L.L.B.d.N.); (A.C.d.R.); (F.C.C.d.S.); (A.A.d.C.M.C.); (J.M.d.C.e.S.)
| | - Ag-Anne Pereira Melo de Menezes
- Laboratory of Toxicological Genetics—LAPGENIC, Graduate Program in Pharmaceutical Sciences, Federal University of Piauí, Teresina 64049-550, Brazil; (M.L.V.M.); (A.-A.P.M.d.M.); (J.W.G.d.O.F.); (M.L.L.B.d.N.); (A.C.d.R.); (F.C.C.d.S.); (A.A.d.C.M.C.); (J.M.d.C.e.S.)
| | - José Williams Gomes de Oliveira Filho
- Laboratory of Toxicological Genetics—LAPGENIC, Graduate Program in Pharmaceutical Sciences, Federal University of Piauí, Teresina 64049-550, Brazil; (M.L.V.M.); (A.-A.P.M.d.M.); (J.W.G.d.O.F.); (M.L.L.B.d.N.); (A.C.d.R.); (F.C.C.d.S.); (A.A.d.C.M.C.); (J.M.d.C.e.S.)
| | - Maria Luiza Lima Barreto do Nascimento
- Laboratory of Toxicological Genetics—LAPGENIC, Graduate Program in Pharmaceutical Sciences, Federal University of Piauí, Teresina 64049-550, Brazil; (M.L.V.M.); (A.-A.P.M.d.M.); (J.W.G.d.O.F.); (M.L.L.B.d.N.); (A.C.d.R.); (F.C.C.d.S.); (A.A.d.C.M.C.); (J.M.d.C.e.S.)
| | - Antonielly Campinho dos Reis
- Laboratory of Toxicological Genetics—LAPGENIC, Graduate Program in Pharmaceutical Sciences, Federal University of Piauí, Teresina 64049-550, Brazil; (M.L.V.M.); (A.-A.P.M.d.M.); (J.W.G.d.O.F.); (M.L.L.B.d.N.); (A.C.d.R.); (F.C.C.d.S.); (A.A.d.C.M.C.); (J.M.d.C.e.S.)
| | - Alessandra Braga Ribeiro
- CBQF—Centro de Biotecnologia e Química Fina—Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal;
| | - Felipe Cavalcanti Carneiro da Silva
- Laboratory of Toxicological Genetics—LAPGENIC, Graduate Program in Pharmaceutical Sciences, Federal University of Piauí, Teresina 64049-550, Brazil; (M.L.V.M.); (A.-A.P.M.d.M.); (J.W.G.d.O.F.); (M.L.L.B.d.N.); (A.C.d.R.); (F.C.C.d.S.); (A.A.d.C.M.C.); (J.M.d.C.e.S.)
| | | | - Hercília Maria Lins Rolim
- Laboratory of Pharmaceutical Nanosystems—NANOSFAR, Graduate Program in Pharmaceutical Sciences, Federal University of Piauí, Teresina 64049-550, Brazil
| | - Ana Amélia de Carvalho Melo Cavalcante
- Laboratory of Toxicological Genetics—LAPGENIC, Graduate Program in Pharmaceutical Sciences, Federal University of Piauí, Teresina 64049-550, Brazil; (M.L.V.M.); (A.-A.P.M.d.M.); (J.W.G.d.O.F.); (M.L.L.B.d.N.); (A.C.d.R.); (F.C.C.d.S.); (A.A.d.C.M.C.); (J.M.d.C.e.S.)
| | - João Marcelo de Castro e Sousa
- Laboratory of Toxicological Genetics—LAPGENIC, Graduate Program in Pharmaceutical Sciences, Federal University of Piauí, Teresina 64049-550, Brazil; (M.L.V.M.); (A.-A.P.M.d.M.); (J.W.G.d.O.F.); (M.L.L.B.d.N.); (A.C.d.R.); (F.C.C.d.S.); (A.A.d.C.M.C.); (J.M.d.C.e.S.)
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Kubo T, Yamamoto S, Watabe Y, Tanigawa T, Nakajima D, Otsuka K. Selective Separation of Thyroid-Hormone-Receptor-Binding Substances Using Molecularly Imprinted Polymers. ACS APPLIED BIO MATERIALS 2022; 5:5210-5217. [PMID: 36260820 DOI: 10.1021/acsabm.2c00618] [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: 01/25/2023]
Abstract
To date, an identification protocol for endocrine disruptors that bind to the thyroid hormone receptor (TR) has not been established. A method for screening and identifying TR-binding substances is highly required due to the existence of unknown TR-binding substances from the environment. Here, we conceived a chromatographic method using a molecularly imprinted polymer (MIP) to create a novel screening protocol for the endocrine disruptors. A receptor-imitating MIP was prepared using N-acetylthyroxine (AcetylT4) and 4-vinylpyridine as a pseudo-template and a functional monomer, respectively, based on the existing molecular recognition mechanism of the TR. The receptor-imitating MIP provided molecular recognition ability for all the TR-binding substances that were employed in this study. The prepared MIPs were packed into a high-performance liquid chromatography column for the simultaneous analysis of TR-binding and non-binding substances. The former was strongly retained, while the latter was not. The presence or absence of TR-binding/non-binding activity resulted in successful dichotomous separation. Additionally, the surface imprinting technique was applied to improve the separation performance of the MIP packing material. MIP-coated uniformly sized silica-based particles of 5 μm were successfully prepared, and the MIP-coated silica column enabled more efficient dichotomous separation of TR-binding and non-binding substances.
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Affiliation(s)
- Takuya Kubo
- Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto615-8510, Japan
| | - Shuhei Yamamoto
- Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto615-8510, Japan
| | - Yoshiyuki Watabe
- Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto615-8510, Japan.,Research Center, Shimadzu General Service, Inc, 1, Nishinokyo, Kuwabara-cho, Nakagyo-ku, Kyoto604-8511, Japan
| | - Tetsuya Tanigawa
- Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto615-8510, Japan
| | - Daisuke Nakajima
- Health and Environmental Risk Division, National Institute for Environmental Studies (NIES), 16-2 Onogawa, Tsukuba-shi, Ibaraki-ken305-8506Japan
| | - Koji Otsuka
- Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto615-8510, Japan
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Protective Effects of Liquiritigenin against Cisplatin-Induced Nephrotoxicity via NRF2/SIRT3-Mediated Improvement of Mitochondrial Function. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27123823. [PMID: 35744945 PMCID: PMC9231399 DOI: 10.3390/molecules27123823] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Revised: 06/06/2022] [Accepted: 06/10/2022] [Indexed: 01/14/2023]
Abstract
Acute kidney injury (AKI) induced by cisplatin (CP), a first-line anticancer drug for chemotherapy, is common. To date, there is an urgent need to find effective treatments to reduce the nephrotoxicity caused by CP. Meanwhile, the restoration of mitochondrial dysfunction shows potential to be used as an adjunct to conventional therapeutic strategies. This study found that liquiritigenin can ameliorate mitochondrial dysfunction and acute kidney injury induced by CP in mice. The intraperitoneal injection of 15 mg/kg body weight liquiritigenin for 2 days markedly protected against CP-induced mitochondrial dysfunction, restored renal tubule and mitochondrial morphology, decreased blood Scr and BUN levels, and decreased cell apoptosis. Furthermore, the elevated expression of SIRT3 induced by liquiritigenin, which can be upregulated by NRF2, was confirmed in vivo and in vitro. The underlying protective mechanisms of liquiritigenin in CP-induced nephrotoxicity were then investigated. Molecular docking results showed that liquiritigenin has potent binding activities to KEAP1, GSK-3β and HRD1. Further results showed that liquiritigenin induced the nuclear translocation of NRF2 and increased the levels of mitochondrial bioenergetics-related protein such as PGC-1α, and TFAM, which are related to NRF2 activity and mitochondrial biogenesis. In addition, liquiritigenin was found to possibly reverse the decrease in BCL2/BAX ratio induced by CP in live cultured renal tubule epithelial cells. Collectively, these results indicated that liquiritigenin could be used as a potential nephroprotective agent to protect against cisplatin-induced acute kidney injury in a NRF2-dependent manner by improving mitochondria function.
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Wu Y, Wang Z, Du Q, Zhu Z, Chen T, Xue Y, Wang Y, Zeng Q, Shen C, Jiang C, Liu L, Zhu H, Liu Q. Pharmacological Effects and Underlying Mechanisms of Licorice-Derived Flavonoids. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2022; 2022:9523071. [PMID: 35082907 PMCID: PMC8786487 DOI: 10.1155/2022/9523071] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/21/2021] [Accepted: 12/17/2021] [Indexed: 12/12/2022]
Abstract
Glycyrrhizae Radix et Rhizoma is the most frequently prescribed natural medicine in China and has been used for more than 2,000 years. The flavonoids of licorice have garnered considerable attention in recent decades due to their structural diversity and myriad pharmacological effects, especially as novel therapeutic agents against inflammation and cancer. Although many articles have been published to summarize different pharmacological activities of licorice in recent years, the systematic summary for flavonoid components is not comprehensive. Therefore, in this review, we summarized the pharmacological and mechanistic data from recent researches on licorice flavonoids and their bioactive components.
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Affiliation(s)
- Yufan Wu
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China
| | - Zhuxian Wang
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China
| | - Qunqun Du
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China
| | - Zhaoming Zhu
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China
| | - Tingting Chen
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China
| | - Yaqi Xue
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China
| | - Yuan Wang
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China
| | - Quanfu Zeng
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China
| | - Chunyan Shen
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China
| | - Cuiping Jiang
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China
| | - Li Liu
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China
| | - Hongxia Zhu
- Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510315, China
| | - Qiang Liu
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China
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Synergistic effect of metformin and vemurufenib (PLX4032) as a molecular targeted therapy in anaplastic thyroid cancer: an in vitro study. Mol Biol Rep 2021; 48:7443-7456. [PMID: 34716862 DOI: 10.1007/s11033-021-06762-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Accepted: 09/22/2021] [Indexed: 10/19/2022]
Abstract
BACKGROUND Survival rate of patients affected with anaplastic thyroid carcinoma (ATC) is less than 5% with current treatment. In ATC, BRAFV600E mutation is the major mutation that results in the transformation of normal cells in to an undifferentiated cancer cells via aberrant molecular signaling mechanisms. Although vemurufenib is a selective oral drug for the BRAFV600E mutant kinase with a response rate of nearly 50% in metastatic melanoma, our study has showed resistance to this drug in ATC. Hence the rationale of the study is to explore combinational therapeutic effect to improve the efficacy of vemurafenib along with metformin. Metformin, a diabetic drug is an AMPK activator and has recently proved to be involved in preventing or treating several types of cancer. METHODS AND RESULTS Using iGEMDock software, a protein-ligand interaction was successful between Metformin and TSHR (receptor present in the thyroid follicular cells). Our study demonstrates that combination of vemurufenib with metformin has synergistic anti-cancer effects which was evaluated through MTT assay (cytotoxicity), colony formation assay (antiproliferation evaluation) and suppressed the progression of ATC cells growth by inducing significant apoptosis, proven by Annexin V-FITC assay (Early Apoptosis Detection). Downregulation of ERK signaling, upregulation of AMPK pathway and precision in epithelial-mesenchymal transition (EMT) pathway which were assessed by RT-PCR and Western blot provide the evidence that the combination of drugs involved in the precision of altered molecular signaling Further our results suggest that Metformin act as a demethylating agent in anaplastic thyroid cancer cells by inducing the expression of NIS and TSHR. Our study for the first time explored cAMP signaling in ATC wherein cAMP signaling is downregulated due to decrease in intracellular cAMP level upon metformin treatment. CONCLUSION To conclude, our findings demonstrate novel therapeutic targets and treatment strategies for undifferentiated ATC.
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Wang N, Wen J, Ren W, Wu Y, Deng C. Upregulation of TRIB2 by Wnt/β-catenin activation in BRAF V600E papillary thyroid carcinoma cells confers resistance to BRAF inhibitor vemurafenib. Cancer Chemother Pharmacol 2021; 88:155-164. [PMID: 33860836 DOI: 10.1007/s00280-021-04270-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Accepted: 03/25/2021] [Indexed: 11/30/2022]
Abstract
PURPOSE The BRAFV600E mutation is an oncogenic driver associated with aggressive tumor behaviors and increased mortality among patients with papillary thyroid cancer (PTC). Although the BRAF inhibitor vemurafenib gave promising results in BRAFV600E-mutant PTC, resistance development remains a major clinical challenge. This study aimed to explore the mechanisms underlying drug resistance in PTC. METHODS Two vemurafenib-resistant PTC cell lines (KTC1 and BCPAP) were established by continuous treatment with vemurafenib for 5 months. The knockdown and upregulation of Tribbles homolog 2 (TRIB2) in PTC cells were achieved by the transfection with short hairpin RNA against TRIB2 or recombinant lentiviral vector carrying TRIB2, respectively. The β-catenin inhibitor, ICG-001, was used for the inhibition of the Wnt/β-catenin signaling in PTC cells. RESULTS Vemurafenib-resistant PTC cells showed higher TRIB2 expression, upregulated ERK and AKT activation, enhanced invasive capacity, and increased epithelial-mesenchymal transition compared to the drug-sensitive groups. TRIB2 knockdown repressed the activation of ERK and AKT, inhibited invasion and EMT, and induced apoptosis of PTC cells. TRIB2 deficiency also enhanced the sensitivity of both PTC cells to vemurafenib. Vemurafenib-resistant PTC cells showed elevated expression of β-catenin in both cytoplasm and nucleus. The pre-incubation of cells with β-catenin inhibitor significantly inhibited TRIB2 expression, suppressed EMT, and repressed the activation of ERK and AKT in vemurafenib-resistant cells. CONCLUSION Our study showed that the upregulation of TRIB2 by the Wnt/β-catenin activation confers resistance to vemurafenib in PTC with BRAFV600 mutation. These findings support the potential use of TRIB2 as a therapeutic target for resistant PTC.
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Affiliation(s)
- Nianxue Wang
- Department of Immunology, Guizhou Medical University, Guiyang City, 550025, Guizhou Province, China
| | - Jing Wen
- Department of Ultrasonic Center, Affiliated Hospital of Guizhou Medical University, Guiyang City, 550004, Guizhou Province, China
| | - Wei Ren
- Department of Immunology, Guizhou Medical University, Guiyang City, 550025, Guizhou Province, China
| | - Yuting Wu
- Department of Pathology, Affiliated Hospital of Guizhou Medical University, No. 28 Guiyi Street, Guiyang City, 550004, Guizhou Province, China
| | - Chaonan Deng
- Department of Pathology, Affiliated Hospital of Guizhou Medical University, No. 28 Guiyi Street, Guiyang City, 550004, Guizhou Province, China.
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Stone BJ, Steele KH, Men H, Srodulski SJ, Bryda EC, Fath-Goodin A. A Nonsurgical Embryo Transfer Technique for Fresh and Cultured Blastocysts in Rats. JOURNAL OF THE AMERICAN ASSOCIATION FOR LABORATORY ANIMAL SCIENCE 2020; 59:488-495. [PMID: 32787997 DOI: 10.30802/aalas-jaalas-19-000163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The use of a nonsurgical embryo transfer technique in rodents eliminates the potential pain, distress, and health complications that may result from a surgical procedure and as such, represents a refinement in rodent assisted reproductive techniques. A nonsurgical technique has not been previously developed for use with rat embryos. Here we describe an efficient method to deliver either fresh or cultured blastocyst stage embryos to the uterine horn of pseudopregnant female rats using a rat nonsurgical embryo transfer (rNSET) device. The rNSET device is composed of a Teflon catheter and a hub that attaches to a 2 μL pipette. Oxytocin is used to dilate the cervix before the delivery of blastocysts, allowing passage of the rNSET catheter directly into the uterine horn for embryo delivery. The efficiency of recovery of pups after nonsurgical embryo transfer is similar to the efficiency after surgical embryo transfer. Furthermore, the technique is not stressful to the subjects, as demonstrated by the absence of a decrease in weight or increase in fecal corticosterone level in recipients of embryos delivered nonsurgically, without the use of anesthesia or analgesia.
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Affiliation(s)
| | | | - Hongsheng Men
- Rat Resource and Research Center, University of Missouri, Columbia, Missouri; Department of Veterinary Pathobiology, University of Missouri, Columbia, Missouri
| | | | - Elizabeth C Bryda
- Rat Resource and Research Center, University of Missouri, Columbia, Missouri; Department of Veterinary Pathobiology, University of Missouri, Columbia, Missouri
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Lan M, Zhang Y, Wan X, Pan MH, Xu Y, Sun SC. Melatonin ameliorates ochratoxin A-induced oxidative stress and apoptosis in porcine oocytes. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 256:113374. [PMID: 31672358 DOI: 10.1016/j.envpol.2019.113374] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Revised: 10/08/2019] [Accepted: 10/09/2019] [Indexed: 06/10/2023]
Abstract
Melatonin is a hormone which is generated from pineal gland, and it is responsible for the regulation of wake-sleep cycle. Melatonin is a well-known antioxidant and free radical scavenger to protect against multiple type of tissue damage. While ochratoxin A (OTA) is a mycotoxin found widely in contaminated food and foodstuffs, which causes nephrotoxicity, hepatotoxicity, immunotoxicity, and reproductive damage in humans and animals. In present study we report the toxicity of OTA on porcine oocyte quality and the protective effects of melatonin on OTA-exposed oocytes. Using transcriptome analysis our results show that OTA exposure alters the expression of multiple genes in oocytes, indicating its effect on oocyte maturation. The cellular changes following OTA treatment are examined, and the results show that OTA adversely affects oocyte polar body extrusion, which is confirmed by the delay of Cdc2-mediated cell cycle progression. OTA exposure also disrupts meiotic spindle formation, which is confirmed by altered phosphorylated MAPK expression. RNA-seq screening and further fluorescence staining results show that OTA induces aberrant mitochondria distribution and oxidative phosphorylation defects, which then causes oxidative stress, followed by early apoptosis and autophagy. Treatment with melatonin significantly ameliorates oxidative stress and apoptosis, which further protects cell cycle and spindle formation in OTA-exposed oocytes. Collectively, these results show the protective effects of melatonin against defects induced by OTA during porcine meiotic oocyte maturation.
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Affiliation(s)
- Mei Lan
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Yu Zhang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Xiang Wan
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Meng-Hao Pan
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Yao Xu
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Shao-Chen Sun
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China.
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Huang CH, Wang FT, Chan WH. Prevention of ochratoxin A-induced oxidative stress-mediated apoptotic processes and impairment of embryonic development in mouse blastocysts by liquiritigenin. ENVIRONMENTAL TOXICOLOGY 2019; 34:573-584. [PMID: 30698892 DOI: 10.1002/tox.22724] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Revised: 01/11/2019] [Accepted: 01/14/2019] [Indexed: 06/09/2023]
Abstract
Ochratoxin A (OTA), a mycotoxin constituent of a range of food commodities, including coffee, wine, beer, grains, and spices, exerts toxicological and pathological effects in vivo, such as nephrotoxicity, hepatotoxicity, and immunotoxicity. In a previous report, we highlighted the potential of OTA to induce apoptosis via reactive oxygen species (ROS) generation in mouse blastocysts that led to impaired preimplantation and postimplantation embryo development in vitro and in vivo. Here, we have shown that liquiritigenin (LQ), a type of flavonoid isolated from Glycyrrhiza radix, effectively protects against OTA-mediated apoptosis and inhibition of cell proliferation in mouse blastocysts. Preincubation of blastocysts with LQ clearly prevented OTA-triggered impairment of preimplantation and postimplantation embryonic development and fetal weight loss, both in vitro and in vivo. Detailed investigation of regulatory mechanisms revealed that OTA mediated apoptosis and embryotoxicity through ROS generation, loss of mitochondrial membrane potential (MMP), and activation of caspase-9 and caspase-3, which were effectively prevented by LQ. The embryotoxic effects of OTA were further validated in an animal model in vivo. Intravenous injection of dams with OTA (3 mg/kg/day) led to apoptosis of blastocysts, impairment of embryonic development from zygote to blastocyst stage and decrease in day 18 fetal weight. Notably, preinjection of dams with LQ (5 mg/kg/day) effectively prevented OTA-induced apoptosis and toxic effects on embryo development. Our collective results clearly demonstrate that OTA exposure via injection has the potential to damage preimplantation and postimplantation embryonic development against which LQ has a protective effect.
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Affiliation(s)
- Chien-Hsun Huang
- Department of Obstetrics and Gynecology, Taoyuan General Hospital, Ministry of Health & Welfare, Taoyuan City, Taiwan
| | - Fu-Ting Wang
- Rehabilitation and Technical Aid Center, Taipei Veterans General Hospital, Taipei City, Taiwan
| | - Wen-Hsiung Chan
- Department of Bioscience Technology and Center for Nanotechnology, Chung Yuan Christian University, Taoyuan City, Taiwan
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Improved Preimplantation Development of Porcine Cloned Embryos by Flavone Supplement as Antioxidant. JOURNAL OF ANIMAL REPRODUCTION AND BIOTECHNOLOGY 2018. [DOI: 10.12750/jet.2018.33.4.255] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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