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Jeon EH, Park SY, Park KU, Lee YH. Ribosomal Protein L9 Maintains Stemness of Colorectal Cancer via an ID-1 Dependent Mechanism. J Cancer Prev 2024; 29:25-31. [PMID: 38957590 PMCID: PMC11215338 DOI: 10.15430/jcp.24.004] [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: 04/30/2024] [Revised: 06/12/2024] [Accepted: 06/17/2024] [Indexed: 07/04/2024] Open
Abstract
The identification of therapeutic target genes that are functionally involved in stemness is crucial to effectively cure patients with metastatic carcinoma. We have previously reported that inhibition of ribosomal protein L9 (RPL9) expression suppresses the growth of colorectal cancer (CRC) cells by inactivating the inhibitor of DNA-binding 1 (ID-1) signaling axis, which is functionally associated with cancer cell survival. In addition to cell proliferation, ID-1 is also involved in the maintenance of cancer stemness. Thus, we aimed in this study to investigate whether the function of RPL9 could correlate with CRC stem cell-like properties. Here, we demonstrated that siRNA silencing of RPL9 reduced the invasiveness and migrative capabilities of HT29 and HCT116 parental cell populations and the capacity for sphere formation in the HT29 parental cell population. CD133+ cancer stem cells (CSCs) were then separated from CD133- cancer cells of the HT29 parental cell culture and treated with RPL9-specific siRNAs to verify the effects of RPL9 targeting on stemness. As a result, knockdown of RPL9 significantly suppressed the proliferative potential of CD133+ colorectal CSCs, accompanied by a reduction in CD133, ID-1, and p-IκBα levels. In line with these molecular alterations, targeting RPL9 inhibited the invasion, migration, and sphere-forming capacity of CD133+ HT29 CSCs. Taken together, these findings suggest that RPL9 promotes CRC stemness via ID-1 and that RPL9 could be a potential therapeutic target for both primary CRC treatment and the prevention of metastasis and/or recurrence.
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Affiliation(s)
- Eun-Hye Jeon
- Department of Molecular Medicine, Keimyung University School of Medicine, Daegu, Korea
| | - So-Young Park
- Department of Molecular Medicine, Keimyung University School of Medicine, Daegu, Korea
| | - Keon Uk Park
- Department of Internal Medicine, Keimyung University School of Medicine, Daegu, Korea
| | - Yun-Han Lee
- Department of Molecular Medicine, Keimyung University School of Medicine, Daegu, Korea
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Park SY, Seo D, Jeon EH, Park JY, Jang BC, Kim JI, Im SS, Lee JH, Kim S, Cho CH, Lee YH. RPL27 contributes to colorectal cancer proliferation and stemness via PLK1 signaling. Int J Oncol 2023; 63:93. [PMID: 37387446 PMCID: PMC10552708 DOI: 10.3892/ijo.2023.5541] [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] [Received: 02/15/2023] [Accepted: 06/07/2023] [Indexed: 07/01/2023] Open
Abstract
Although expression of ribosomal protein L27 (RPL27) is upregulated in clinical colorectal cancer (CRC) tissue, to the best of our knowledge, the oncogenic role of RPL27 has not yet been defined. The present study aimed to investigate whether targeting RPL27 could alter CRC progression and determine whether RPL27 gains an extra‑ribosomal function during CRC development. Human CRC cell lines HCT116 and HT29 were transfected with RPL27‑specific small interfering RNA and proliferation was assessed in vitro and in vivo using proliferation assays, fluorescence‑activated cell sorting (FACS) and a xenograft mouse model. Furthermore, RNA sequencing, bioinformatic analysis and western blotting were conducted to explore the underlying mechanisms responsible for RPL27 silencing‑induced CRC phenotypical changes. Inhibiting RPL27 expression suppressed CRC cell proliferation and cell cycle progression and induced apoptotic cell death. Targeting RPL27 significantly inhibited growth of human CRC xenografts in nude mice. Notably, polo‑like kinase 1 (PLK1), which serves an important role in mitotic cell cycle progression and stemness, was downregulated in both HCT116 and HT29 cells following RPL27 silencing. RPL27 silencing reduced the levels of PLK1 protein and G2/M‑associated regulators such as phosphorylated cell division cycle 25C, CDK1 and cyclin B1. Silencing of RPL27 reduced the migration and invasion abilities and sphere‑forming capacity of the parental CRC cell population. In terms of phenotypical changes in cancer stem cells (CSCs), RPL27 silencing suppressed the sphere‑forming capacity of the isolated CD133+ CSC population, which was accompanied by decreased CD133 and PLK1 levels. Taken together, these findings indicated that RPL27 contributed to the promotion of CRC proliferation and stemness via PLK1 signaling and RPL27 may be a useful target in a next‑generation therapeutic strategy for both primary CRC treatment and metastasis prevention.
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Affiliation(s)
- So-Young Park
- Department of Molecular Medicine, Keimyung University School of Medicine, Daegu 42601, Republic of Korea
| | - Daekwan Seo
- Department of Bioinformatics, Psomagen Inc., Rockville, MD 20850, USA
| | - Eun-Hye Jeon
- Department of Molecular Medicine, Keimyung University School of Medicine, Daegu 42601, Republic of Korea
| | - Jee Young Park
- Department of Immunology, Keimyung University School of Medicine, Daegu 42601, Republic of Korea
| | - Byeong-Churl Jang
- Department of Molecular Medicine, Keimyung University School of Medicine, Daegu 42601, Republic of Korea
| | - Jee In Kim
- Department of Molecular Medicine, Keimyung University School of Medicine, Daegu 42601, Republic of Korea
| | - Seung-Soon Im
- Department of Physiology, Keimyung University School of Medicine, Daegu 42601, Republic of Korea
| | - Jae-Ho Lee
- Department of Anatomy, Keimyung University School of Medicine, Daegu 42601, Republic of Korea
| | - Shin Kim
- Department of Immunology, Keimyung University School of Medicine, Daegu 42601, Republic of Korea
| | - Chi Heum Cho
- Department of Obstetrics and Gynecology, Keimyung University School of Medicine, Daegu 42601, Republic of Korea
| | - Yun-Han Lee
- Department of Molecular Medicine, Keimyung University School of Medicine, Daegu 42601, Republic of Korea
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Giraudo M, Colson TLL, De Silva AO, Lu Z, Gagnon P, Brown L, Houde M. Food-Borne Exposure of Juvenile Rainbow Trout (Oncorhynchus mykiss) to Benzotriazole Ultraviolet Stabilizers Alone and in Mixture Induces Specific Transcriptional Changes. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2020; 39:852-862. [PMID: 32004393 DOI: 10.1002/etc.4676] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 11/20/2019] [Accepted: 01/15/2020] [Indexed: 05/14/2023]
Abstract
Benzotriazole ultraviolet-stabilizers (BZT-UVs) are commonly used as additives to protect from light-induced degradation in a variety of consumer goods. Despite their widespread presence in aquatic ecosystems, information on the effects of these compounds remains largely unknown. The objectives of the present study were to evaluate the chronic effects of 2 BZT-UVs alone and in a mixture, 2-(2H-benzotriazol-2-yl)-4,6-bis(1-methyl-1-phenylethyl)phenol (UV-234) and 2-(2H-benzotriazol-2-yl)-4,6-di-tert-pentylphenol (UV-328), in juvenile rainbow trout (Oncorhynchus mykiss) chronically exposed (for 28 d) through the diet. Chemical analyses of livers from exposed trout suggested liver accumulation and potential metabolism of the 2 compounds. Hepatic RNA-sequencing analyses revealed specific effects of each compound on gene transcription profiles; UV-234 affected mainly genes involved in cellular metabolism, whereas UV-328 induced the transcription of ribosomal proteins and downregulated genes involved in immune responses. Both compounds regulated iron homeostasis genes in an opposite manner. The mixture of both BZT-UVs did not produce significant evidence of additive or synergistic effects. Environ Toxicol Chem 2020;39:852-862. © 2020 Her Majesty the Queen in Right of Canada. Environmental Toxicology and Chemistry © 2020 SETAC.
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Affiliation(s)
- Maeva Giraudo
- Aquatic Contaminants Research Division, Environment and Climate Change Canada, Montreal, Quebec, Canada
| | - Tash-Lynn L Colson
- School of Environmental Studies, Queen's University, Kingston, Ontario, Canada
| | - Amila O De Silva
- Aquatic Contaminants Research Division, Environment and Climate Change Canada, Burlington, Ontario, Canada
| | - Zhe Lu
- Institut des Sciences de La Mer de Rimouski, Université du Québec à Rimouski, Rimouski, Quebec, Canada
| | - Pierre Gagnon
- Aquatic Contaminants Research Division, Environment and Climate Change Canada, Montreal, Quebec, Canada
| | - Lorraine Brown
- Pacific Environmental Science Centre, Environment and Climate Change Canada, North Vancouver, British Columbia, Canada
| | - Magali Houde
- Aquatic Contaminants Research Division, Environment and Climate Change Canada, Montreal, Quebec, Canada
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Zheng W, Zhou T, Li J, Jiang W, Zhang J, Xiao C, Wei D, Yang C, Xu R, Gong A, Zhang C, Bi Y. The Biosynthesis of Heterophyllin B in Pseudostellaria heterophylla From prePhHB-Encoded Precursor. FRONTIERS IN PLANT SCIENCE 2019; 10:1259. [PMID: 31749814 PMCID: PMC6842982 DOI: 10.3389/fpls.2019.01259] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Accepted: 09/10/2019] [Indexed: 06/10/2023]
Abstract
Plant cyclic peptides (CPs) are a large group of small molecule metabolites found in a wide variety of plants, including traditional Chinese medicinal plants. However, the majority of plant CPs have not been studied for their biosynthetic mechanisms, including heterophyllin B (HB), which is one of the characteristic chemical components of Pseudostellaria heterophylla. Here, we screened the precursor gene (prePhHB) of HB in P. heterophylla and functionally identified its correctness in vivo and in vitro. First, we developed a new method to screen the precursors of HB from 16 candidate linear peptides. According to transcriptome sequencing data, we cloned the genes that encoded the HB precursor peptides and confirmed that the prePhHB-encoded precursor peptide could enzymatically synthesize HB. Next, we generated the transgenic tobacco that expressed prePhHB, and the results showed that HB was detected in transgenic tobacco. Moreover, we revealed that prePhHB gene expression is positively correlated with HB accumulation in P. heterophylla. Mutations in the prePhHB gene may influence the accumulation of HB in P. heterophylla. These results suggest that HB is ribosomally synthesized and posttranslationally modified peptide (RiPP) derived from the precursor gene prePhHB-encoded precursor peptide, and the core peptide sequence of HB is IFGGLPPP in P. heterophylla. This study developed a new idea for the rapid identification of Caryophyllaceae-type CP precursor peptides via RNA-sequencing data mining.
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Affiliation(s)
- Wei Zheng
- Experiment Center, Guizhou University of Traditional Chinese Medicine, Guiyang, China
- Graduate School, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Tao Zhou
- Experiment Center, Guizhou University of Traditional Chinese Medicine, Guiyang, China
| | - Jun Li
- Experiment Center, Guizhou University of Traditional Chinese Medicine, Guiyang, China
| | - Weike Jiang
- School of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang, China
| | - Jinqiang Zhang
- Experiment Center, Guizhou University of Traditional Chinese Medicine, Guiyang, China
| | - Chenghong Xiao
- Experiment Center, Guizhou University of Traditional Chinese Medicine, Guiyang, China
| | - Dequn Wei
- Experiment Center, Guizhou University of Traditional Chinese Medicine, Guiyang, China
| | - Changgui Yang
- Experiment Center, Guizhou University of Traditional Chinese Medicine, Guiyang, China
| | - Rong Xu
- Experiment Center, Guizhou University of Traditional Chinese Medicine, Guiyang, China
| | - Anhui Gong
- Experiment Center, Guizhou University of Traditional Chinese Medicine, Guiyang, China
| | - Chen Zhang
- Experiment Center, Guizhou University of Traditional Chinese Medicine, Guiyang, China
| | - Yan Bi
- Experiment Center, Guizhou University of Traditional Chinese Medicine, Guiyang, China
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Li Y, Han B, Liu L, Zhao F, Liang W, Jiang J, Yang Y, Ma Z, Sun D. Genetic association of DDIT3, RPL23A, SESN2 and NR4A1 genes with milk yield and composition in dairy cattle. Anim Genet 2019; 50:123-135. [PMID: 30815908 DOI: 10.1111/age.12750] [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] [Accepted: 09/21/2018] [Indexed: 01/15/2023]
Abstract
Previously, we identified by RNA sequencing that DDIT3, RPL23A, SESN2 and NR4A1 genes were significantly differentially expressed between the mammary glands of lactating Holstein cows with extremely high and low milk protein and fat percentages; thus, these four genes are considered as promising candidates potentially affecting milk yield and composition traits in dairy cattle. In the present study, we further verified whether these genes have genetic effects on milk traits in a Chinese Holstein population. By re-sequencing part of the non-coding and the entire coding regions of the DDIT3, RPL23A, SESN2 and NR4A1 genes, a total of 35 SNPs and three insertions/deletions were identified, of which three were found in DDIT3, 12 in RPL23A, 16 in SESN2 and seven in NR4A1. Moreover, two of the insertions/deletions-g.125714860_125714872del and g.125714806delinsCCCC in SESN2-were novel and have not been reported previously. Subsequent single SNP analyses revealed multiple significant association with all 35 SNPs and three indels regressed against the dairy production traits (P-value = <0.0001-0.0493). In addition, with a linkage disequilibrium analysis, we found one, one, three, and one haplotype blocks in the DDIT3, RPL23A, SESN2 and NR4A1 genes respectively. Haplotype-based association analyses revealed that some haplotypes were also significantly associated with milk production traits (P-value = <0.0001-0.0461). We also found that 12 SNPs and two indels (two in DDIT3, two in RPL23A, nine in SESN2 and one in NR4A1) altered the specific transcription factor binding sites in the promoter, thereby regulating promoter activity, suggesting that they might be promising potential functional variants for milk traits. In summary, our findings first determined the genetic associations of DDIT3, RPL23A, SESN2 and NR4A1 with milk yield and composition traits in dairy cattle and also suggested potentially causal variants, which require in-depth validation.
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Affiliation(s)
- Y Li
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture, National Engineering Laboratory for Animal Breeding, Beijing, 100193, China.,Beijing Dairy Cattle Center, Beijing, 100192, China
| | - B Han
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture, National Engineering Laboratory for Animal Breeding, Beijing, 100193, China
| | - L Liu
- Beijing Dairy Cattle Center, Beijing, 100192, China
| | - F Zhao
- Beijing Dairy Cattle Center, Beijing, 100192, China
| | - W Liang
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture, National Engineering Laboratory for Animal Breeding, Beijing, 100193, China
| | - J Jiang
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture, National Engineering Laboratory for Animal Breeding, Beijing, 100193, China
| | - Y Yang
- Beijing Municipal Bureau of Agriculture, Beijing, 100101, China
| | - Z Ma
- Beijing Dairy Cattle Center, Beijing, 100192, China
| | - D Sun
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture, National Engineering Laboratory for Animal Breeding, Beijing, 100193, China
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Apopa PL, Alley L, Penney RB, Arnaoutakis K, Steliga MA, Jeffus S, Bircan E, Gopalan B, Jin J, Patumcharoenpol P, Jenjaroenpun P, Wongsurawat T, Shah N, Boysen G, Ussery D, Nookaew I, Fagan P, Bebek G, Orloff MS. PARP1 Is Up-Regulated in Non-small Cell Lung Cancer Tissues in the Presence of the Cyanobacterial Toxin Microcystin. Front Microbiol 2018; 9:1757. [PMID: 30127774 PMCID: PMC6087756 DOI: 10.3389/fmicb.2018.01757] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Accepted: 07/13/2018] [Indexed: 12/20/2022] Open
Abstract
Non-small cell lung cancer (NSCLC) is the major form of lung cancer, with adenocarcinoma (LUAD) and squamous cell carcinoma (LUSC) being its major subtypes. Smoking alone cannot completely explain the lung cancer etiology. We hypothesize that altered lung microbiome and chronic inflammatory insults in lung tissues contribute to carcinogenesis. Here we explore the microbiome composition of LUAD samples, compared to LUSC and normal samples. Extraction of microbiome DNA in formalin-fixed, paraffin-embedded (FFPE) lung tumor and normal adjacent tissues was meticulously performed. The 16S rRNA product from extracted microbiota was subjected to microbiome amplicon sequencing. To assess the contribution of the host genome, CD36 expression levels were analyzed then integrated with altered NSCLC subtype-specific microbe sequence data. Surprisingly phylum Cyanobacteria was consistently observed in LUAD samples. Across the NSCLC subtypes, differential abundance across four phyla (Proteobacteria, Bacteroidetes, Actinobacteria, and Firmicutes) was identified based on the univariate analysis (p-value < 6.4e-4 to 3.2e-2). In silico metagenomic and pathway analyses show that presence of microcystin correlates with reduced CD36 and increased PARP1 levels. This was confirmed in microcystin challenged NSCLC (A427) cell lines and Cyanobacteria positive LUAD tissues. Controlling the influx of Cyanobacteria-like particles or microcystin and the inhibition of PARP1 can provide a potential targeted therapy and prevention of inflammation-associated lung carcinogenesis.
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Affiliation(s)
- Patrick L Apopa
- Department of Epidemiology, University of Arkansas for Medical Sciences, Little Rock, AR, United States
| | - Lisa Alley
- Department of Epidemiology, University of Arkansas for Medical Sciences, Little Rock, AR, United States
| | - Rosalind B Penney
- Department of Environmental and Occupational Health, University of Arkansas for Medical Sciences, Little Rock, AR, United States
| | - Konstantinos Arnaoutakis
- Winthrop P. Rockefeller Cancer Institute, University of Arkansas for Medical Sciences, Little Rock, AR, United States
| | - Mathew A Steliga
- Winthrop P. Rockefeller Cancer Institute, University of Arkansas for Medical Sciences, Little Rock, AR, United States
| | - Susan Jeffus
- Department of Pathology, University of Arkansas for Medical Sciences, Little Rock, AR, United States
| | - Emine Bircan
- Department of Epidemiology, University of Arkansas for Medical Sciences, Little Rock, AR, United States
| | | | - Jing Jin
- Department of Epidemiology, University of Arkansas for Medical Sciences, Little Rock, AR, United States
| | - Preecha Patumcharoenpol
- Department of Biomedical Informatics, University of Arkansas for Medical Sciences, Little Rock, AR, United States
| | - Piroon Jenjaroenpun
- Department of Biomedical Informatics, University of Arkansas for Medical Sciences, Little Rock, AR, United States
| | - Thidathip Wongsurawat
- Department of Biomedical Informatics, University of Arkansas for Medical Sciences, Little Rock, AR, United States
| | - Nishi Shah
- College of Medicine, University of Arkansas for Medical Sciences, Little Rock, AR, United States
| | - Gunnar Boysen
- Department of Environmental and Occupational Health, University of Arkansas for Medical Sciences, Little Rock, AR, United States
| | - David Ussery
- Department of Biomedical Informatics, University of Arkansas for Medical Sciences, Little Rock, AR, United States
| | - Intawat Nookaew
- Department of Biomedical Informatics, University of Arkansas for Medical Sciences, Little Rock, AR, United States
| | - Pebbles Fagan
- Department of Health Behavior and Health, University of Arkansas for Medical Sciences, Little Rock, AR, United States
| | - Gurkan Bebek
- Department of Electrical Engineering and Computer Science, Case Western Reserve University, Cleveland, OH, United States.,Center for Proteomics and Bioinformatics, Case Western Reserve University, Cleveland, OH, United States.,Department of Nutrition, Case Western Reserve University, Cleveland, OH, United States
| | - Mohammed S Orloff
- Department of Epidemiology, University of Arkansas for Medical Sciences, Little Rock, AR, United States.,Winthrop P. Rockefeller Cancer Institute, University of Arkansas for Medical Sciences, Little Rock, AR, United States
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