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Rong Z, Li F, Zhang R, Niu S, Di X, Ni L, Liu C. Inhibition of tiRNA-Gly-GCC ameliorates neointimal formation via CBX3-mediated VSMCs phenotypic switching. Front Cardiovasc Med 2023; 10:1030635. [PMID: 36818350 PMCID: PMC9937027 DOI: 10.3389/fcvm.2023.1030635] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Accepted: 01/09/2023] [Indexed: 02/05/2023] Open
Abstract
Background and aim tRNA-derived fragments (tRFs) are a new class of non-coding RNAs involved in a variety of pathological processes, but their biological functions and mechanisms in human aortic smooth muscle cells (HASMCs) phenotype transition and vascular intimal hyperplasia are unclear. Methods/results tiRNA-Gly-GCC is upregulated in synthetic HASMCs, atherosclerotic arteries, plasma, and the balloon injured carotid artery of rats. Functionally, the inhibition of tiRNA-Gly-GCC represses HASMCs proliferation, migration, and reversed dedifferentiation, whereas the overexpression of tiRNA- Gly-GCC have contrary effects. Mechanistically, tiRNA-Gly-GCC performs these functions on HASMCs via downregulating chromobox protein homolog 3 (CBX3). Finally, the inhibition of tiRNA-Gly-GCC could ameliorate neointimal formation after vascular injury in vivo. Conclusions tiRNA-Gly-GCC is a mediator of HASMCs phenotypic switching by targeting CBX3 and inhibition of tiRNA-Gly-GCC suppresses neointimal formation.
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Park S, Ham J, Yang C, Park W, Park H, An G, Song J, Hong T, Park SJ, Kim HS, Song G, Lim W. Melatonin inhibits endometriosis development by disrupting mitochondrial function and regulating tiRNAs. J Pineal Res 2023; 74:e12842. [PMID: 36401340 DOI: 10.1111/jpi.12842] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 07/13/2022] [Accepted: 08/29/2022] [Indexed: 11/21/2022]
Abstract
Endometriosis is a benign gynecological disease characterized by abnormal growth of endometrial-like cells outside the uterus. Melatonin, a hormone secreted by the pineal gland, has been shown to have therapeutic effects in various diseases, including endometriosis. However, the underlying molecular mechanisms are yet to be elucidated. The results of this study demonstrated that melatonin and dienogest administration effectively reduced surgically induced endometriotic lesions in a mouse model. Melatonin suppressed proliferation, induced apoptosis, and dysregulated calcium homeostasis in endometriotic cells and primary endometriotic stromal cells. Melatonin also caused mitochondrial dysfunction by permeating through the mitochondrial membrane to disrupt redox homeostasis in the endometriotic epithelial and stromal cells. Furthermore, melatonin affected oxidative phosphorylation systems to decrease ATP production in End1/E6E7 and VK2/E6E7 cells. This was achieved through messenger RNA-mediated downregulation of respiratory complex subunits. Melatonin inhibited the PI3K/AKT and ERK1/2 pathways and the mitochondria-associated membrane axis and further suppressed the migration of endometriotic epithelial and stromal cells. Furthermore, we demonstrated that tiRNAGluCTC and tiRNAAspGTC were associated with the proliferation of endometriosis and that melatonin suppressed the expression of these tiRNAs in primary endometriotic stromal cells and lesions in a mouse model. Thus, melatonin can be used as a novel therapeutic agent to manage endometriosis.
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Affiliation(s)
- Sunwoo Park
- Department of Plant and Biomaterials Science, Gyeongsang National University, Jinju, Republic of Korea
| | - Jiyeon Ham
- Institute of Animal Molecular Biotechnology and Department of Biotechnology, Korea University, Seoul, Republic of Korea
| | - Changwon Yang
- Institute of Animal Molecular Biotechnology and Department of Biotechnology, Korea University, Seoul, Republic of Korea
| | - Wonhyoung Park
- Institute of Animal Molecular Biotechnology and Department of Biotechnology, Korea University, Seoul, Republic of Korea
| | - Hahyun Park
- Institute of Animal Molecular Biotechnology and Department of Biotechnology, Korea University, Seoul, Republic of Korea
| | - Garam An
- Institute of Animal Molecular Biotechnology and Department of Biotechnology, Korea University, Seoul, Republic of Korea
| | - Jisoo Song
- Department of Biological Sciences, College of Science, Sungkyunkwan University, Suwon, Republic of Korea
| | - Taeyeon Hong
- Department of Biological Sciences, College of Science, Sungkyunkwan University, Suwon, Republic of Korea
| | - Soo Jin Park
- Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Hee Seung Kim
- Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Gwonhwa Song
- Institute of Animal Molecular Biotechnology and Department of Biotechnology, Korea University, Seoul, Republic of Korea
| | - Whasun Lim
- Department of Biological Sciences, College of Science, Sungkyunkwan University, Suwon, Republic of Korea
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Hou J, Li Q, Wang J, Lu W. tRFs and tRNA Halves: Novel Cellular Defenders in Multiple Biological Processes. Curr Issues Mol Biol 2022; 44:5949-5962. [PMID: 36547066 PMCID: PMC9777342 DOI: 10.3390/cimb44120405] [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: 10/27/2022] [Revised: 11/17/2022] [Accepted: 11/23/2022] [Indexed: 11/29/2022] Open
Abstract
tRNA fragments derived from angiogenin or Dicer cleavage are referred to as tRNA-derived fragments (tRFs) and tRNA halves. tRFs and tRNA halves have been identified in both eukaryotes and prokaryotes and are precisely cleaved at specific sites on either precursor or mature tRNA transcripts rather than via random degradation. tRFs and tRNA halves are highly involved in regulating transcription and translation in a canonical or non-canonical manner in response to cellular stress. In this review, we summarize the biogenesis and types of tRFs and tRNA halves, clarify the biological functions and molecular mechanisms of tRNA fragments in both physiological and pathological processes with a particular focus on their cytoprotective roles in defending against oxidation and apoptosis, and highlight their potential application as biomarkers in determining cell fate.
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Affiliation(s)
- Jiani Hou
- Jilin Provincial International Joint Research Center of Animal Breeding & Reproduction Technology, Jilin Agricultural University, Changchun 130118, China
- Key Lab of the Animal Production, Product Quality and Security, Ministry of Education, Jilin Agricultural University, Changchun 130118, China
- College of Animal Science and Technology, Jilin Agricultural University, Changchun 130118, China
| | - Qianqing Li
- Jilin Provincial International Joint Research Center of Animal Breeding & Reproduction Technology, Jilin Agricultural University, Changchun 130118, China
- Key Lab of the Animal Production, Product Quality and Security, Ministry of Education, Jilin Agricultural University, Changchun 130118, China
- College of Animal Science and Technology, Jilin Agricultural University, Changchun 130118, China
| | - Jun Wang
- Jilin Provincial International Joint Research Center of Animal Breeding & Reproduction Technology, Jilin Agricultural University, Changchun 130118, China
- Key Lab of the Animal Production, Product Quality and Security, Ministry of Education, Jilin Agricultural University, Changchun 130118, China
- College of Animal Science and Technology, Jilin Agricultural University, Changchun 130118, China
- Correspondence: (J.W.); (W.L.); Tel.: +86-0431-84533525; Fax: +861-0431-84533525
| | - Wenfa Lu
- Jilin Provincial International Joint Research Center of Animal Breeding & Reproduction Technology, Jilin Agricultural University, Changchun 130118, China
- Key Lab of the Animal Production, Product Quality and Security, Ministry of Education, Jilin Agricultural University, Changchun 130118, China
- College of Animal Science and Technology, Jilin Agricultural University, Changchun 130118, China
- Correspondence: (J.W.); (W.L.); Tel.: +86-0431-84533525; Fax: +861-0431-84533525
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Yang C, Song J, Park S, Ham J, Park W, Park H, An G, Hong T, Kim HS, Song G, Lim W. Targeting Thymidylate Synthase and tRNA-Derived Non-Coding RNAs Improves Therapeutic Sensitivity in Colorectal Cancer. Antioxidants (Basel) 2022; 11:2158. [PMID: 36358529 PMCID: PMC9686910 DOI: 10.3390/antiox11112158] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 10/25/2022] [Accepted: 10/28/2022] [Indexed: 11/01/2023] Open
Abstract
Some colorectal cancer (CRC) patients are resistant to 5-fluorouracil (5-FU), and high expression levels of thymidylate synthase (TS) contribute to this resistance. This study investigated whether quercetin, a representative polyphenol compound, could enhance the effect of 5-FU in CRC cells. Quercetin suppressed TS levels that were increased by 5-FU in CRC cells and promoted the expression of p53. Quercetin also induced intracellular and mitochondrial reactive oxygen species (ROS) production and Ca2+ dysregulation in a 5-FU-independent pathway in CRC cells. Furthermore, quercetin decreased mitochondrial membrane potential in CRC cells and inhibited mitochondrial respiration. Moreover, quercetin regulated the expression of specific tiRNAs, including tiRNAHisGTG, and transfection of a tiRNAHisGTG mimic further enhanced the apoptotic effect of quercetin in CRC cells. An enhanced sensitivity to 5-FU was also confirmed in colitis-associated CRC mice treated with quercetin. The treatment of quercetin decreased survival rates of the CRC mouse model, with reductions in the number of tumors and in the disease activity index. Also, quercetin suppressed TS and PCNA protein expression in the distal colon tissue of CRC mice. These results suggest that quercetin has the potential to be used as an adjuvant with 5-FU for the treatment of CRC.
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Affiliation(s)
- Changwon Yang
- Department of Biotechnology, Institute of Animal Molecular Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Korea
| | - Jisoo Song
- Department of Biological Sciences, College of Science, Sungkyunkwan University, Suwon 16419, Korea
| | - Sunwoo Park
- Department of Plant & Biomaterials Science, Gyeongsang National University, Jinju 52725, Korea
| | - Jiyeon Ham
- Department of Biotechnology, Institute of Animal Molecular Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Korea
| | - Wonhyoung Park
- Department of Biotechnology, Institute of Animal Molecular Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Korea
| | - Hahyun Park
- Department of Biotechnology, Institute of Animal Molecular Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Korea
| | - Garam An
- Department of Biotechnology, Institute of Animal Molecular Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Korea
| | - Taeyeon Hong
- Department of Biological Sciences, College of Science, Sungkyunkwan University, Suwon 16419, Korea
| | - Hee Seung Kim
- Department of Obstetrics and Gynecology, College of Medicine, Seoul National University, Seoul 03080, Korea
| | - Gwonhwa Song
- Department of Biotechnology, Institute of Animal Molecular Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Korea
| | - Whasun Lim
- Department of Biological Sciences, College of Science, Sungkyunkwan University, Suwon 16419, Korea
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