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Ribeiro KS, Karmakar E, Park C, Garg R, Kung GP, Kadakia I, Gopianand JS, Arun T, Kisselev O, Gnana-Prakasam JP. Iron Regulates Cellular Proliferation by Enhancing the Expression of Glucose Transporter GLUT3 in the Liver. Cells 2024; 13:1147. [PMID: 38994998 PMCID: PMC11240476 DOI: 10.3390/cells13131147] [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: 05/01/2024] [Revised: 07/01/2024] [Accepted: 07/02/2024] [Indexed: 07/13/2024] Open
Abstract
Iron is often accumulated in the liver during pathological conditions such as cirrhosis and cancer. Elevated expression of glucose transporters GLUT1 and GLUT3 is associated with reduced overall survival in patients with hepatocellular carcinoma. However, it is not known whether iron can regulate glucose transporters and contribute to tumor proliferation. In the present study, we found that treatment of human liver cell line HepG2 with ferric ammonium citrate (FAC) resulted in a significant upregulation of GLUT3 mRNA and protein in a dose-dependent manner. Similarly, iron accumulation in mice fed with high dietary iron as well as in mice injected intraperitoneally with iron dextran enhanced the GLUT3 expression drastically in the liver. We demonstrated that iron-induced hepatic GLUT3 upregulation is mediated by the LKB1/AMPK/CREB1 pathway, and this activation was reversed when treated with iron chelator deferiprone. In addition, inhibition of GLUT3 using siRNA prevented iron-mediated increase in the expression of cell cycle markers and cellular hyperproliferation. Furthermore, exogenous sodium beta-hydroxybutyrate treatment prevented iron-mediated hepatic GLUT3 activation both in vitro and in vivo. Together, these results underscore the importance of iron, AMPK, CREB1 and GLUT3 pathways in cell proliferation and highlight the therapeutic potential of sodium beta-hydroxybutyrate in hepatocellular carcinoma with high GLUT3 expression.
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Affiliation(s)
- Kleber S Ribeiro
- School of Medicine, Saint Louis University, St. Louis, MO 63104, USA
| | - Eshani Karmakar
- School of Medicine, Saint Louis University, St. Louis, MO 63104, USA
| | - Christine Park
- School of Medicine, Saint Louis University, St. Louis, MO 63104, USA
| | - Richa Garg
- School of Medicine, Saint Louis University, St. Louis, MO 63104, USA
| | - George P Kung
- School of Medicine, Saint Louis University, St. Louis, MO 63104, USA
| | - Isha Kadakia
- School of Medicine, Saint Louis University, St. Louis, MO 63104, USA
| | | | - Tejas Arun
- School of Medicine, Saint Louis University, St. Louis, MO 63104, USA
| | - Oleg Kisselev
- School of Medicine, Saint Louis University, St. Louis, MO 63104, USA
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Huang J, Liang L, Jiang S, Liu Y, He H, Sun X, Li Y, Xie L, Tao Y, Cong L, Jiang Y. BDH1-mediated LRRC31 regulation dependent on histone lysine β-hydroxybutyrylation to promote lung adenocarcinoma progression. MedComm (Beijing) 2023; 4:e449. [PMID: 38098610 PMCID: PMC10719427 DOI: 10.1002/mco2.449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 11/19/2023] [Accepted: 11/21/2023] [Indexed: 12/17/2023] Open
Abstract
Lung adenocarcinoma (LUAD) is the most common form of lung cancer, with a consistently low 5-year survival rate. Therefore, we aim to identify key genes involved in LUAD progression to pave the way for targeted therapies in the future. BDH1 plays a critical role in the conversion between acetoacetate and β-hydroxybutyrate. The presence of β-hydroxybutyrate is essential for initiating lysine β-hydroxybutyrylation (Kbhb) modifications. Histone Kbhb at the H3K9 site is attributed to transcriptional activation. We unveiled that β-hydroxybutyrate dehydrogenase 1 (BDH1) is not only conspicuously overexpressed in LUAD, but it also modulates the overall intracellular Kbhb modification levels. The RNA sequencing analysis revealed leucine-rich repeat-containing protein 31 (LRRC31) as a downstream target gene regulated by BDH1. Ecologically expressed BDH1 hinders the accumulation of H3K9bhb in the transcription start site of LRRC31, consequently repressing the transcriptional expression of LRRC31. Furthermore, we identified potential BDH1 inhibitors, namely pimozide and crizotinib, which exhibit a synergistic inhibitory effect on the proliferation of LUAD cells exhibiting high expression of BDH1. In summary, this study elucidates the molecular mechanism by which BDH1 mediates LUAD progression through the H3K9bhb/LRRC31 axis and proposes a therapeutic strategy targeting BDH1-high-expressing LUAD, providing a fresh perspective for LUAD treatment.
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Affiliation(s)
- Jingjing Huang
- The Key Laboratory of Model Animal and Stem Cell Biology in Hunan Province, Hunan Normal UniversityChangshaHunanChina
- Department of Basic Medicine, School of Medicine, Hunan Normal UniversityChangshaHunanChina
| | - Lu Liang
- The Key Laboratory of Model Animal and Stem Cell Biology in Hunan Province, Hunan Normal UniversityChangshaHunanChina
- Department of Basic Medicine, School of Medicine, Hunan Normal UniversityChangshaHunanChina
| | - Shiyao Jiang
- The Key Laboratory of Model Animal and Stem Cell Biology in Hunan Province, Hunan Normal UniversityChangshaHunanChina
- Department of Basic Medicine, School of Medicine, Hunan Normal UniversityChangshaHunanChina
| | - Yueying Liu
- The Key Laboratory of Model Animal and Stem Cell Biology in Hunan Province, Hunan Normal UniversityChangshaHunanChina
- Department of Basic Medicine, School of Medicine, Hunan Normal UniversityChangshaHunanChina
| | - Hua He
- The Key Laboratory of Model Animal and Stem Cell Biology in Hunan Province, Hunan Normal UniversityChangshaHunanChina
- Department of Basic Medicine, School of Medicine, Hunan Normal UniversityChangshaHunanChina
| | - Xiaoyan Sun
- The Key Laboratory of Model Animal and Stem Cell Biology in Hunan Province, Hunan Normal UniversityChangshaHunanChina
- Department of Basic Medicine, School of Medicine, Hunan Normal UniversityChangshaHunanChina
| | - Yi Li
- The Key Laboratory of Model Animal and Stem Cell Biology in Hunan Province, Hunan Normal UniversityChangshaHunanChina
- Department of Basic Medicine, School of Medicine, Hunan Normal UniversityChangshaHunanChina
| | - Li Xie
- Department of Head and Neck SurgeryHunan Cancer Hospital, Xiangya School of Medicine, Central South UniversityChangshaHunanChina
| | - Yongguang Tao
- Department of PathologyKey Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Xiangya Hospital, School of Basic Medicine, Central South UniversityChangshaHunanChina
| | - Li Cong
- The Key Laboratory of Model Animal and Stem Cell Biology in Hunan Province, Hunan Normal UniversityChangshaHunanChina
- Department of Basic Medicine, School of Medicine, Hunan Normal UniversityChangshaHunanChina
| | - Yiqun Jiang
- The Key Laboratory of Model Animal and Stem Cell Biology in Hunan Province, Hunan Normal UniversityChangshaHunanChina
- Department of Basic Medicine, School of Medicine, Hunan Normal UniversityChangshaHunanChina
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Identification of Differentially Expressed Intronic Transcripts in Osteosarcoma. Noncoding RNA 2022; 8:ncrna8060073. [PMID: 36412907 PMCID: PMC9680297 DOI: 10.3390/ncrna8060073] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 10/19/2022] [Accepted: 10/24/2022] [Indexed: 12/14/2022] Open
Abstract
Over the past decade; the discovery and characterization of long noncoding RNAs (lncRNAs) have revealed that they play a major role in the development of various diseases; including cancer. Intronic transcripts are one of the most fascinating lncRNAs that are located within intron regions of protein-coding genes, which have the advantage of encoding micropeptides. There have been several studies looking at intronic transcript expression profiles in cancer; but almost none in osteosarcoma. To overcome this problem; we have investigated differentially expressed intronic transcripts between osteosarcoma and normal bone tissues. The results highlighted that NRG1-IT1; FGF14-IT1; and HAO2-IT1 were downregulated; whereas ER3-IT1; SND1-IT1; ANKRD44-IT1; AGAP1-IT1; DIP2A-IT1; LMO7DN-IT1; SLIT2-IT1; RNF216-IT1; and TCF7L1-IT1 were upregulated in osteosarcoma tissues compared to normal bone tissues. Furthermore, we identified if the transcripts encode micropeptides and the transcripts' locations in a cell.
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Luo W, Wu S, Zhang F, Chen X, Ma Y, Mo Y. Decreased expression of 3-hydroxybutyrate dehydrogenase 1 is a prognostic marker and promotes tumor progression in hepatocellular carcinoma. Pathol Res Pract 2022; 238:154111. [PMID: 36115334 DOI: 10.1016/j.prp.2022.154111] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 08/22/2022] [Accepted: 08/31/2022] [Indexed: 11/22/2022]
Abstract
Growing evidence indicates that altered metabolism represents the hallmark of hepatocellular carcinoma (HCC). The mitochondrial 3-hydroxybutyrate dehydrogenase 1 (BDH1) is a key catalytic enzyme in ketogenesis with unknown roles in HCC. Hundred and four tissue sample pairs (HCC tissues, n = 104; matched normal tissues, n = 104) were obtained and analyzed with immunohistochemical (IHC) staining to investigate the clinical and functional role and the diagnostic and prognostic value of BDH1 in HCC. In addition, RNA-Seq datasets from the Tumor Immune Estimation Resource (TIMER) (HCC group, n = 371; normal group, n = 50) and microarray datasets from the Gene Expression Omnibus (GEO) database (HCC tissues, n = 1671; normal tissues, n = 1479) were used to assess BDH1 expression in HCC. Several bioinformatic methods were performed to identify pathways regulated by BDH1. The IHC staining showed that BDH1 expression decreased in HCC tissues (n = 69) compared with that in adjacent normal tissues (n = 35, P < 0.001). Low BDH1 expression was associated with advanced clinical stage (P = 0.033) and vascular invasion (P = 0.007). Moreover, ectopic expression of BDH1 reduced tumor proliferation and suppressed the migration and invasion of HCC cells in vitro. Therefore, our data suggest that BDH1 is a potentially valuable diagnostic biomarker and therapeutic target for HCC.
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Affiliation(s)
- Wenqi Luo
- Department of Pathology, Guangxi Medical University Cancer Hospital, Nanning, China
| | - Shu Wu
- Key Laboratory of High-Incidence-Tumor Prevention & Treatment (Guangxi Medical University), Ministry of Education, Nanning, China
| | - Fengyou Zhang
- Department of Pathology, Guangxi Medical University Cancer Hospital, Nanning, China
| | - Xiaoyu Chen
- Department of Pathology, Guangxi Medical University Cancer Hospital, Nanning, China
| | - Yun Ma
- Department of Pathology, Guangxi Medical University Cancer Hospital, Nanning, China
| | - Yingxi Mo
- Department of Research, Guangxi Medical University Cancer Hospital, Nanning, China.
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