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Chen X, Ma Z, Yi Z, Wu E, Shang Z, Tuo B, Li T, Liu X. The effects of metabolism on the immune microenvironment in colorectal cancer. Cell Death Discov 2024; 10:118. [PMID: 38453888 PMCID: PMC10920911 DOI: 10.1038/s41420-024-01865-z] [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: 11/25/2023] [Revised: 02/07/2024] [Accepted: 02/12/2024] [Indexed: 03/09/2024] Open
Abstract
Colorectal cancer (CRC) is a malignancy that is widely prevalent worldwide. Due to its unsatisfactory treatment outcome and extremely poor prognosis, many studies on the molecular mechanisms and pathological mechanisms of CRC have been published in recent years. The tumor microenvironment (TME) is an extremely important feature of tumorigenesis and one of the hallmarks of tumor development. Metabolic reprogramming is currently a hot topic in tumor research, and studies on this topic have provided important insights into CRC development. In particular, metabolic reprogramming in cancer causes changes in the composition of energy and nutrients in the TME. Furthermore, it can alter the complex crosstalk between immune cells and associated immune factors, such as associated macrophages and T cells, which play important immune roles in the TME, in turn affecting the immune escape of tumors by altering immune surveillance. In this review, we summarize several metabolism-related processes affecting the immune microenvironment of CRC tumors. Our results showed that the immune microenvironment is regulated by metabolic reprogramming and influences the development of CRC.
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Affiliation(s)
- Xingzhao Chen
- Department of Gastroenterology, Digestive Disease Hospital, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou Province, China
| | - Zhiyuan Ma
- Department of Gastroenterology, Digestive Disease Hospital, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou Province, China
| | - Zhiqiang Yi
- Department of Gastroenterology, Digestive Disease Hospital, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou Province, China
| | - Enqin Wu
- Department of Gastroenterology, Digestive Disease Hospital, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou Province, China
| | - Zhengye Shang
- Department of Gastroenterology, Digestive Disease Hospital, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou Province, China
| | - Biguang Tuo
- Department of Gastroenterology, Digestive Disease Hospital, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou Province, China
| | - Taolang Li
- Department of General Surgery, Affiliated Hospital of Zunyi Medical University, Dalian Road 149, Zunyi, 563000, China.
| | - Xuemei Liu
- Department of Gastroenterology, Digestive Disease Hospital, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou Province, China.
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Hu S, Yang Z, Li L, Yan Q, Hu Y, Zhou F, Tan Y, Pei G. Salvianolic Acid B Alleviates Liver Injury by Regulating Lactate-Mediated Histone Lactylation in Macrophages. Molecules 2024; 29:236. [PMID: 38202819 PMCID: PMC10780734 DOI: 10.3390/molecules29010236] [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: 10/22/2023] [Revised: 12/25/2023] [Accepted: 12/29/2023] [Indexed: 01/12/2024] Open
Abstract
Salvianolic acid B (Sal B) is the primary water-soluble bioactive constituent derived from the roots of Salvia miltiorrhiza Bunge. This research was designed to reveal the potential mechanism of Sal B anti-liver injury from the perspective of macrophages. In our lipopolysaccharide-induced M1 macrophage model, Sal B showed a clear dose-dependent gradient of inhibition of the macrophage trend of the M1 type. Moreover, Sal B downregulated the expression of lactate dehydrogenase A (LDHA), while the overexpression of LDHA impaired Sal B's effect of inhibiting the trend of macrophage M1 polarization. Additionally, this study revealed that Sal B exhibited inhibitory effects on the lactylation process of histone H3 lysine 18 (H3K18la). In a ChIP-qPCR analysis, Sal B was observed to drive a reduction in H3K18la levels in the promoter region of the LDHA, NLRP3, and IL-1β genes. Furthermore, our in vivo experiments showed that Sal B has a good effect on alleviating CCl4-induced liver injury. An examination of liver tissues and the Kupffer cells isolated from those tissues proved that Sal B affects the M1 polarization of macrophages and the level of histone lactylation. Together, our data reveal that Sal B has a potential mechanism of inhibiting the histone lactylation of macrophages by downregulating the level of LDHA in the treatment of liver injury.
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Affiliation(s)
- Shian Hu
- College of Pharmacy, Hunan University of Chinese Medicine, Changsha 410000, China; (S.H.); (L.L.); (Q.Y.); (Y.H.); (F.Z.)
- Key Laboratory of Modern Research of TCM, Education Department of Hunan Province, Changsha 410000, China
| | - Zehua Yang
- Hunan Drug Inspection Center, Changsha 410000, China;
| | - Ling Li
- College of Pharmacy, Hunan University of Chinese Medicine, Changsha 410000, China; (S.H.); (L.L.); (Q.Y.); (Y.H.); (F.Z.)
- Key Laboratory of Modern Research of TCM, Education Department of Hunan Province, Changsha 410000, China
| | - Qinwen Yan
- College of Pharmacy, Hunan University of Chinese Medicine, Changsha 410000, China; (S.H.); (L.L.); (Q.Y.); (Y.H.); (F.Z.)
- Key Laboratory of Modern Research of TCM, Education Department of Hunan Province, Changsha 410000, China
| | - Yutong Hu
- College of Pharmacy, Hunan University of Chinese Medicine, Changsha 410000, China; (S.H.); (L.L.); (Q.Y.); (Y.H.); (F.Z.)
- Key Laboratory of Modern Research of TCM, Education Department of Hunan Province, Changsha 410000, China
| | - Feng Zhou
- College of Pharmacy, Hunan University of Chinese Medicine, Changsha 410000, China; (S.H.); (L.L.); (Q.Y.); (Y.H.); (F.Z.)
- Key Laboratory of Modern Research of TCM, Education Department of Hunan Province, Changsha 410000, China
| | - Yang Tan
- College of Pharmacy, Hunan University of Chinese Medicine, Changsha 410000, China; (S.H.); (L.L.); (Q.Y.); (Y.H.); (F.Z.)
- Key Laboratory of Modern Research of TCM, Education Department of Hunan Province, Changsha 410000, China
| | - Gang Pei
- College of Pharmacy, Hunan University of Chinese Medicine, Changsha 410000, China; (S.H.); (L.L.); (Q.Y.); (Y.H.); (F.Z.)
- Key Laboratory of Modern Research of TCM, Education Department of Hunan Province, Changsha 410000, China
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Li Y, Zhou Y, Xia S, Chen L, Yang T, Zhao D, Zhang Z, Shao J, Xu X, Zhang F, Zheng S. Blockade of KLF5/LDH-A feedback loop contributes to Curcumol inhibition of sinusoidal endothelial cell glycolysis and mitigation of liver fibrosis. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2023; 114:154759. [PMID: 37031640 DOI: 10.1016/j.phymed.2023.154759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 02/14/2023] [Accepted: 03/08/2023] [Indexed: 06/19/2023]
Abstract
BACKGROUND LSECs (Liver sinusoidal endothelial cells) are the portal of liver, their pathological angiogenesis plays a constructive role in etiopathogenesis of liver fibrosis by affecting liver tissue repair and inflammatory drive. Although intervention in angiogenesis can effectively inhibit abnormal activation of LSEC, no effective drugs have been found to treat liver fibrosis. PURPOSE We investigated the effect of the natural compound Curcumol on LSEC angiogenesis and elucidated the novel underlying mechanism, expecting to provide a scientific basis for exploring potential therapeutic drugs for liver fibrosis. METHODS Various cellular and molecular assays, as well as genetic assays, were used to detect pathological angiogenesis and changes in glycolysis levels in cultured rat LSECs and mouse liver fibrosis models. RESULTS Transcription factor KLF5 is able to influence the angiogenic properties of LSEC by regulating the glycolytic process, and affect the expression of LDH-A by transcriptionally binding to its promoter. In our study, we were surprised to find that LDH-A (the final step of glycolysis) has a strong regulatory effect on the glycolytic process of LSEC. Through in-depth study, we found that LDH-A could affect the transcriptional activity of KLF5, thus forming a positive feedback loop. Curcumol could break this positive feedback loop and inhibit the glycolysis-dependent angiogenic nature of LSEC, thus alleviating liver fibrosis. Curcumol reduced extracellular matrix (ECM) deposition, attenuated pathological angiogenesis in LSEC, and decreased the level of CCl4-induced liver fibrosis in mice. CONCLUSION Our results demonstrated the great utilization potentiality of KLF5 in liver fibrosis, and the innovative discovery that LDH-A regulates the glycolytic process and forms a malignant feedback loop by exerting non-enzymatic effects. It also reveals the prospect of Curcumol-regulated KLF5/LDH-A feedback loop in the treatment of liver fibrosis, providing a new option for the future medicine of liver fibrosis.
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Affiliation(s)
- Yang Li
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Yuanyuan Zhou
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Siwei Xia
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Li Chen
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Ting Yang
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Danli Zhao
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Zili Zhang
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Jiangjuan Shao
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Xuefen Xu
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Feng Zhang
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China.
| | - Shizhong Zheng
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China.
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Liang Y, Rao Z, Du D, Wang Y, Fang T. Butyrate prevents the migration and invasion, and aerobic glycolysis in gastric cancer via inhibiting Wnt/β-catenin/c-Myc signaling. Drug Dev Res 2023; 84:532-541. [PMID: 36782390 DOI: 10.1002/ddr.22043] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 01/10/2023] [Accepted: 01/19/2023] [Indexed: 02/15/2023]
Abstract
Gastric cancer (GC) remains a common cause of cancer death worldwide. Evidence has found that butyrate exhibited antitumor effects on GC cells. However, the mechanism by which butyrate regulate GC cell proliferation, migration, invasion, and aerobic glycolysis remains largely unknown. The proliferation, migration, and invasion of GC cells were tested by EdU staining, transwell assays. Additionally, protein expressions were determined by western blot assay. Next, glucose uptake, lactate production, and cellular ATP levels in GC cells were detected. Furthermore, the antitumor effects of butyrate in tumor-bearing nude mice were evaluated. We found, butyrate significantly prevented GC cell proliferation, migration, and invasion (p < .01). Additionally, butyrate markedly inhibited GC cell aerobic glycolysis, as shown by the reduced expressions of GLUT1, HK2, and LDHA (p < .01). Moreover, butyrate notably decreased nuclear β-catenin and c-Myc levels in GC cells (p < .01). Remarkably, through activating Wnt/β-catenin signaling with LiCl, the inhibitory effects of butyrate on the growth and aerobic glycolysis of GC cells were diminished (p < .01). Moreover, butyrate notably suppressed tumor volume and weight in GC cell xenograft nude mice in vivo (p < .01). Meanwhile, butyrate obviously reduced nuclear β-catenin, c-Myc, GLUT1, HK2 and LDHA levels in tumor tissues in GC cell xenograft mice (p < .01). Collectively, butyrate could suppress the growth and aerobic glycolysis of GC cells in vitro and in vivo via downregulating wnt/β-catenin/c-Myc signaling. These findings are likely to prove useful in better understanding the role of butyrate in GC.
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Affiliation(s)
- Yizhi Liang
- Department of Gastroenterology, The Second Affiliated Clinical Medical College of Fujian Medical University, The Second Affiliated Hospital of Fujian Medical University, Fujian, China
| | - Zilan Rao
- Department of Gastroenterology, The Second Affiliated Clinical Medical College of Fujian Medical University, The Second Affiliated Hospital of Fujian Medical University, Fujian, China
| | - Dongwei Du
- Department of Gastroenterology, The Second Affiliated Clinical Medical College of Fujian Medical University, The Second Affiliated Hospital of Fujian Medical University, Fujian, China
| | - Yiwen Wang
- Department of Gastroenterology, The Second Affiliated Clinical Medical College of Fujian Medical University, The Second Affiliated Hospital of Fujian Medical University, Fujian, China
| | - Taiyong Fang
- Department of Gastroenterology, The Second Affiliated Clinical Medical College of Fujian Medical University, The Second Affiliated Hospital of Fujian Medical University, Fujian, China
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Li H, Zhao A, Li M, Shi L, Han Q, Hou Z. Targeting T-cell metabolism to boost immune checkpoint inhibitor therapy. Front Immunol 2022; 13:1046755. [PMID: 36569893 PMCID: PMC9768337 DOI: 10.3389/fimmu.2022.1046755] [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: 09/17/2022] [Accepted: 11/21/2022] [Indexed: 12/12/2022] Open
Abstract
Immune checkpoint inhibitors (ICIs) have shown promising therapeutic effects in the treatment of advanced solid cancers, but their overall response rate is still very low for certain tumor subtypes, limiting their clinical scope. Moreover, the high incidence of drug resistance (including primary and acquired) and adverse effects pose significant challenges to the utilization of these therapies in the clinic. ICIs enhance T cell activation and reverse T cell exhaustion, which is a complex and multifactorial process suggesting that the regulatory mechanisms of ICI therapy are highly heterogeneous. Recently, metabolic reprogramming has emerged as a novel means of reversing T-cell exhaustion in the tumor microenvironment; there is increasing evidence that T cell metabolic disruption limits the therapeutic effect of ICIs. This review focuses on the crosstalk between T-cell metabolic reprogramming and ICI therapeutic efficacy, and summarizes recent strategies to improve drug tolerance and enhance anti-tumor effects by targeting T-cell metabolism alongside ICI therapy. The identification of potential targets for altering T-cell metabolism can significantly contribute to the development of methods to predict therapeutic responsiveness in patients receiving ICI therapy, which are currently unknown but would be of great clinical significance.
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Affiliation(s)
- Haohao Li
- Institute of Immunopharmaceutical Sciences, School of Pharmaceutical Sciences, Shandong University, Jinan, Shandong, China
| | - Alison Zhao
- Cleveland Clinic Lerner College of Medicine at Case Western Reserve School of Medicine, Cleveland, OH, United States
| | - Menghua Li
- Institute of Immunopharmaceutical Sciences, School of Pharmaceutical Sciences, Shandong University, Jinan, Shandong, China
| | - Lizhi Shi
- Institute of Immunopharmaceutical Sciences, School of Pharmaceutical Sciences, Shandong University, Jinan, Shandong, China
| | - Qiuju Han
- Institute of Immunopharmaceutical Sciences, School of Pharmaceutical Sciences, Shandong University, Jinan, Shandong, China,*Correspondence: Qiuju Han, ; Zhaohua Hou,
| | - Zhaohua Hou
- Thoracic Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, United States,*Correspondence: Qiuju Han, ; Zhaohua Hou,
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Warburg effect in colorectal cancer: the emerging roles in tumor microenvironment and therapeutic implications. J Hematol Oncol 2022; 15:160. [PMID: 36319992 PMCID: PMC9628128 DOI: 10.1186/s13045-022-01358-5] [Citation(s) in RCA: 62] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Accepted: 09/26/2022] [Indexed: 11/07/2022] Open
Abstract
Colorectal cancer (CRC) is the third most common cancer and the second leading cause of cancer-related death worldwide. Countless CRC patients undergo disease progression. As a hallmark of cancer, Warburg effect promotes cancer metastasis and remodels the tumor microenvironment, including promoting angiogenesis, immune suppression, cancer-associated fibroblasts formation and drug resistance. Targeting Warburg metabolism would be a promising method for the treatment of CRC. In this review, we summarize information about the roles of Warburg effect in tumor microenvironment to elucidate the mechanisms governing Warburg effect in CRC and to identify novel targets for therapy.
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Tong H, Wei H, Smith AO, Huang J. The Role of m6A Epigenetic Modification in the Treatment of Colorectal Cancer Immune Checkpoint Inhibitors. Front Immunol 2022; 12:802049. [PMID: 35069586 PMCID: PMC8771774 DOI: 10.3389/fimmu.2021.802049] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Accepted: 12/22/2021] [Indexed: 12/24/2022] Open
Abstract
Tumor immunotherapy, one of the efficient therapies in cancers, has been called to the scientific community's increasing attention lately. Among them, immune checkpoint inhibitors, providing entirely new modalities to treat cancer by leveraging the patient's immune system. They are first-line treatments for varieties of advanced malignancy, such as melanoma, gastrointestinal tumor, esophageal cancer. Although immune checkpoint inhibitors (ICIs) treatment has been successful in different cancers, drug resistance and relapses are common, such as in colorectal cancer. Therefore, it is necessary to improve the efficacy of immune checkpoint therapy for cancer patients who do not respond or lowly response to current treatments. N6-methyladenosine (m6A), as a critical regulator of transcript expression, is the most frequently internal modification of mRNA in the human body. Recently, it has been proposed that m6A epigenetic modification is a potential driver of tumor drug resistance. In this report, we will briefly outline the relevant mechanisms, general treatment status of immune checkpoint inhibitors in colorectal cancer, how m6A epigenetic modifications regulate the response of ICIs in CRC and provide new strategies for overcoming the resistance of ICIs in CRC.
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Affiliation(s)
- Huan Tong
- Department of Hematology, Sichuan Academy of Medical Sciences & Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, China
- Blood Diseases Institute, Xuzhou Medical University, Xuzhou, China & Department of Hematology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China & Key Laboratory of Bone Marrow Stem Cell, Xuzhou, China
| | - He Wei
- Department of Gastroenterology, The Second Affiliated Hospital of Chengdu Medical College, Nuclear Industry 416 Hospital, Chengdu, China
- School of Bioscience and Technology, Chengdu Medical College, Chengdu, China
| | - Alhaji Osman Smith
- Blood Diseases Institute, Xuzhou Medical University, Xuzhou, China & Department of Hematology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China & Key Laboratory of Bone Marrow Stem Cell, Xuzhou, China
| | - Juan Huang
- Department of Hematology, Sichuan Academy of Medical Sciences & Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, China
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Mazzio E, Mack N, Badisa RB, Soliman KFA. Triple Isozyme Lactic Acid Dehydrogenase Inhibition in Fully Viable MDA-MB-231 Cells Induces Cytostatic Effects That Are Not Reversed by Exogenous Lactic Acid. Biomolecules 2021; 11:biom11121751. [PMID: 34944395 PMCID: PMC8698706 DOI: 10.3390/biom11121751] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 11/09/2021] [Accepted: 11/18/2021] [Indexed: 12/13/2022] Open
Abstract
A number of aggressive human malignant tumors are characterized by an intensified glycolytic rate, over-expression of lactic acid dehydrogenase A (LDHA), and subsequent lactate accumulation, all of which contribute toward an acidic peri-cellular immunosuppressive tumor microenvironment (TME). While recent focus has been directed at how to inhibit LDHA, it is now becoming clear that multiple isozymes of LDH must be simultaneously inhibited in order to fully suppress lactic acid and halt glycolysis. In this work we explore the biochemical and genomic consequences of an applied triple LDH isozyme inhibitor (A, B, and C) (GNE-140) in MDA-MB-231 triple-negative breast cancer cells (TNBC) cells. The findings confirm that GNE-140 does in fact, fully block the production of lactic acid, which also results in a block of glucose utilization and severe impedance of the glycolytic pathway. Without a fully functional glycolytic pathway, breast cancer cells continue to thrive, sustain viability, produce ample energy, and maintain mitochondrial potential (ΔΨM). The only observable negative consequence of GNE-140 in this work, was the attenuation of cell division, evident in both 2D and 3D cultures and occurring in fully viable cells. Of important note, the cytostatic effects were not reversed by the addition of exogenous (+) lactic acid. While the effects of GNE-140 on the whole transcriptome were mild (12 up-regulated differential expressed genes (DEGs); 77 down-regulated DEGs) out of the 48,226 evaluated, the down-regulated DEGS collectively centered around a loss of genes related to mitosis, cell cycle, GO/G1–G1/S transition, and DNA replication. These data were also observed with digital florescence cytometry and flow cytometry, both corroborating a G0/G1 phase blockage. In conclusion, the findings in this work suggest there is an unknown element linking LDH enzyme activity to cell cycle progression, and this factor is completely independent of lactic acid. The data also establish that complete inhibition of LDH in cancer cells is not a detriment to cell viability or basic production of energy.
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Affiliation(s)
- Elizabeth Mazzio
- Institute of Public Health, College of Pharmacy & Pharmaceutical Sciences, Florida A&M University, Tallahassee, FL 32307, USA; (E.M.); (N.M.); (R.B.B.)
| | - Nzinga Mack
- Institute of Public Health, College of Pharmacy & Pharmaceutical Sciences, Florida A&M University, Tallahassee, FL 32307, USA; (E.M.); (N.M.); (R.B.B.)
- Institute of Computational Medicine, Johns Hopkins Whiting School of Engineering, Baltimore, MD 21218, USA
| | - Ramesh B. Badisa
- Institute of Public Health, College of Pharmacy & Pharmaceutical Sciences, Florida A&M University, Tallahassee, FL 32307, USA; (E.M.); (N.M.); (R.B.B.)
| | - Karam F. A. Soliman
- Institute of Public Health, College of Pharmacy & Pharmaceutical Sciences, Florida A&M University, Tallahassee, FL 32307, USA; (E.M.); (N.M.); (R.B.B.)
- Correspondence: ; Tel.: +1-850-599-3306; Fax: +1-850-599-3667
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Zhang Y, Li J, Wang B, Chen T, Chen Y, Ma W. LDH-A negatively regulates dMMR in colorectal cancer. Cancer Sci 2021; 112:3050-3063. [PMID: 34110068 PMCID: PMC8353898 DOI: 10.1111/cas.15020] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 06/04/2021] [Accepted: 06/09/2021] [Indexed: 12/15/2022] Open
Abstract
Although immune checkpoint inhibitors (ICIs) have achieved unprecedented success in dMMR tumors, pMMR tumors accounting for 85% of colorectal cancer (CRC) cases remain unresponsive. Lactate dehydrogenase A (LDH-A) is the rate-limiting enzyme that catalyzes the transformation of pyruvate to lactate in the process of glycolysis. We investigated the relationship between LDH-A and dMMR with the purpose of exploring the treatment strategy for pMMR CRC patients. We here show that LDH-A can promote the proliferation of dMMR and pMMR CRC cells by positively regulating MMR proteins both in vitro and in vivo. LDH-A inhibition can improve the efficacy of PD-1 blockade in a pMMR CRC xenograft model. A statistical analysis of 186 CRC specimens showed a significant correlation between LDH-A and dMMR status. Moreover, patients with both low LDH-A expression and dMMR exhibited better disease-free survival compared with patients with other combinations. The close correlation of LDH-A and dMMR may offer a promising therapeutic strategy in which the combination of LDH-A inhibitor and ICIs may improve the clinical benefit for pMMR CRC patients.
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Affiliation(s)
- Yongjie Zhang
- Department of Medical Oncology, Huai'an Hospital Affiliated with Xuzhou Medical University, Huai'an, China
| | - Juan Li
- Department of Medical Oncology, Huai'an Hospital Affiliated with Xuzhou Medical University, Huai'an, China
| | - Bo Wang
- Department of Anesthesiology, Huai'an Hospital of Traditional Chinese Medicine, Huai'an, China
| | - Ting Chen
- Department of Medical Oncology, Huai'an Hospital Affiliated with Xuzhou Medical University, Huai'an, China
| | - Yun Chen
- Department of Medical Oncology, Huai'an Hospital Affiliated with Xuzhou Medical University, Huai'an, China
| | - Wen Ma
- Department of Medical Oncology, Huai'an Hospital Affiliated with Xuzhou Medical University, Huai'an, China
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