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Sun R, Tu X, Chan S, Wang X, Ji Y, Wang Z, Yu Z, Zuo X, Zhang Q, Chen J, Han Q, Wang M, Zhao H, Zhang H, Chen W. CBX2 Deletion Suppresses Growth and Metastasis of Colorectal Cancer by Mettl3-p38/ERK MAPK Signalling Pathway. J Cancer 2024; 15:2123-2136. [PMID: 38495501 PMCID: PMC10937286 DOI: 10.7150/jca.92633] [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: 11/27/2023] [Accepted: 02/06/2024] [Indexed: 03/19/2024] Open
Abstract
Colorectal cancer (CRC) seriously endangers human health owing to its high morbidity and mortality. Previous studies have suggested that high expression of CBX2 may be associated with poor prognosis in CRC patients. However, its functional role in CRC remains to be elucidated. Herein, we found that CBX2 overexpression in colorectal cancer tissue compared with adjacent tissues. Additionally, forest maps and the nomogram model indicated that elevated CBX2 expression was an independent prognostic factor in CRC. Moreover, we confirmed that the deletion of CBX2 markedly suppressed the proliferation and migration of CRC cells in vitro and in vivo. Furthermore, downregulation of CBX2 promotes CRC cell apoptosis and hinders the cell cycle. Mechanistically, our data demonstrated that deletion of CBX2 inhibited the MAPK signaling pathway by regulating the protein levels of Mettl3. In conclusion, our study demonstrated that CBX2 is a vital tumor suppressor in CRC and could be a promising anti-cancer therapeutic target.
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Affiliation(s)
- Rui Sun
- Department of General Surgery, First Affiliated Hospital of Anhui Medical University, Hefei 230032, China
- Anhui Provincial Institute of Translational Medicine, Hefei 230032, China
| | - Xucan Tu
- Department of General Surgery, First Affiliated Hospital of Anhui Medical University, Hefei 230032, China
| | - Shixin Chan
- Department of General Surgery, First Affiliated Hospital of Anhui Medical University, Hefei 230032, China
| | - Xu Wang
- Department of General Surgery, First Affiliated Hospital of Anhui Medical University, Hefei 230032, China
| | - Yizhong Ji
- Department of General Surgery, First Affiliated Hospital of Anhui Medical University, Hefei 230032, China
| | - Zhenglin Wang
- Department of General Surgery, First Affiliated Hospital of Anhui Medical University, Hefei 230032, China
| | - Zhen Yu
- Department of General Surgery, First Affiliated Hospital of Anhui Medical University, Hefei 230032, China
| | - Xiaomin Zuo
- Department of General Surgery, First Affiliated Hospital of Anhui Medical University, Hefei 230032, China
| | - Qing Zhang
- Department of Biochemistry and Molecular Biology, Metabolic Disease Research Center, School of Basic Medicine, Anhui Medical University, Hefei 230032, China
| | - Jiajie Chen
- Department of Dermatology, First Affiliated Hospital of Anhui Medical University, Hefei 230032, China
| | - Qijun Han
- Department of General Surgery, First Affiliated Hospital of Anhui Medical University, Hefei 230032, China
| | - Ming Wang
- Department of General Surgery, First Affiliated Hospital of Anhui Medical University, Hefei 230032, China
| | - Hu Zhao
- Department of General Surgery, First Affiliated Hospital of Anhui Medical University, Hefei 230032, China
| | - Huabing Zhang
- Department of Biochemistry and Molecular Biology, Metabolic Disease Research Center, School of Basic Medicine, Anhui Medical University, Hefei 230032, China
- Anhui Provincial Institute of Translational Medicine, Hefei 230032, China
| | - Wei Chen
- Department of General Surgery, First Affiliated Hospital of Anhui Medical University, Hefei 230032, China
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Wei F, Nian Q, Zhao M, Wen Y, Yang Y, Wang J, He Z, Chen X, Yin X, Wang J, Ma X, Chen Y, Feng P, Zeng J. Natural products and mitochondrial allies in colorectal cancer therapy. Biomed Pharmacother 2023; 167:115473. [PMID: 37713992 DOI: 10.1016/j.biopha.2023.115473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 09/05/2023] [Accepted: 09/07/2023] [Indexed: 09/17/2023] Open
Abstract
Colorectal cancer (CRC) is a globally prevalent malignancy with a high potential for metastasis. Existing cancer treatments have limitations, including drug resistance and adverse effects. Researchers are striving to develop effective therapies to address these challenges. Impressively, contemporary research has discovered that many natural products derived from foods, plants, insects, and marine invertebrates can suppress the progression, metastasis, and invasion of CRC. In this review, we conducted a comprehensive search of the CNKI, PubMed, Embase, and Web of Science databases from inception to April 2023 to evaluate the efficacy of natural products targeting mitochondria to fight against CRC. Mitochondria are intracellular energy factories involved in cell differentiation, signal transduction, cell cycle regulation, apoptosis, and tumorigenesis. The identified natural products have been classified and summarized based on their mechanisms of action. These findings indicate that natural products can induce apoptosis in colorectal cancer cells by inhibiting the mitochondrial respiratory chain, ROS elevation, disruption of mitochondrial membrane potential, the release of pro-apoptotic factors, modulation of the Bcl-2 protein family to facilitate cytochrome c release, induction of apoptotic vesicle activity by activating the caspase protein family, and selective targeting of mitochondrial division. Furthermore, diverse apoptotic signaling pathways targeting mitochondria, such as the MAPK, p53, STAT3, JNK and AKT pathway, have been triggered by natural products. Natural products such as diosgenin, allopurinol, and clausenidin have demonstrated low toxicity, high efficacy, and multi-targeted properties. Mitochondria-targeting natural products have great potential for overcoming the challenges of CRC therapy.
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Affiliation(s)
- Feng Wei
- Department of Oncology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610072, China; School of Clinical Medicine, Chengdu University of Chinese Medicine, Chengdu 610075, China
| | - Qing Nian
- Department of Blood Transfusion, Sichuan Academy of Medical Science & Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu 610072, China
| | - Maoyuan Zhao
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Yueqiang Wen
- School of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Yi Yang
- Department of Oncology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610072, China
| | - Jundong Wang
- Department of Gastroenterology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610072, China
| | - Zhelin He
- Endoscopy center, Guang'an Hospital of Traditional Chinese Medicine, Guang'an 638000, China
| | - Xiaoyan Chen
- Endoscopy center, Guang'an Hospital of Traditional Chinese Medicine, Guang'an 638000, China
| | - Xiang Yin
- Endoscopy center, Guang'an Hospital of Traditional Chinese Medicine, Guang'an 638000, China
| | - Jian Wang
- Endoscopy center, Guang'an Hospital of Traditional Chinese Medicine, Guang'an 638000, China
| | - Xiao Ma
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
| | - Yu Chen
- Department of Oncology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610072, China.
| | - Peimin Feng
- Department of Gastroenterology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610072, China.
| | - Jinhao Zeng
- Department of Gastroenterology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610072, China; TCM Regulating Metabolic Diseases Key Laboratory of Sichuan Province, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610072, China.
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Wen CY, Hsiao JH, Tzeng YDT, Chang R, Tsang YL, Kuo CH, Li CJ. Single-cell landscape and spatial transcriptomic analysis reveals macrophage infiltration and glycolytic metabolism in kidney renal clear cell carcinoma. Aging (Albany NY) 2023; 15:11298-11312. [PMID: 37847178 PMCID: PMC10637799 DOI: 10.18632/aging.205128] [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: 06/30/2023] [Accepted: 10/02/2023] [Indexed: 10/18/2023]
Abstract
The present study investigates the clinical relevance of glycolytic factors, specifically PGAM1, in the tumor microenvironment of kidney renal clear cell carcinoma (KIRC). Despite the established role of glycolytic metabolism in cancer pathophysiology, the prognostic implications and key targets in KIRC remain elusive. We analyzed GEO and TCGA datasets to identify DEGs in KIRC and studied their relationship with immune gene expression, survival, tumor stage, gene mutations, and infiltrating immune cells. We explored Pgam1 gene expression in different kidney regions using spatial transcriptomics after mouse kidney injury analysis. Single-cell RNA-sequencing was used to assess the association of PGAM1 with immune cells. Findings were validated with tumor specimens from 60 KIRC patients, correlating PGAM1 expression with clinicopathological features and prognosis using bioinformatics and immunohistochemistry. We demonstrated the expression of central gene regulators in renal cancer in relation to genetic variants, deletions, and tumor microenvironment. Mutations in these hub genes were positively associated with distinct immune cells in six different immune datasets and played a crucial role in immune cell infiltration in KIRC. Single-cell RNA-sequencing revealed that elevated PGAM1 was associated with immune cell infiltration, specifically macrophages. Furthermore, pharmacogenomic analysis of renal cancer cell lines indicated that inactivation of PGAM1 was associated with increased sensitivity to specific small-molecule drugs. Altered PGAM1 in KIRC is associated with disease progression and immune microenvironment. It has diagnostic and prognostic implications, indicating its potential in precision medicine and drug screening.
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Affiliation(s)
- Chen-Yueh Wen
- Division of Urology, Department of Surgery, Kaohsiung Veterans General Hospital, Kaohsiung 813, Taiwan
| | - Jui-Hu Hsiao
- Department of Surgery, Kaohsiung Municipal Minsheng Hospital, Kaohsiung 802, Taiwan
| | - Yen-Dun Tony Tzeng
- Department of Surgery, Kaohsiung Veterans General Hospital, Kaohsiung 813, Taiwan
- Institute of Biomedical Sciences, National Sun Yat-Sen University, Kaohsiung 804, Taiwan
| | - Renin Chang
- Department of Emergency Medicine, Kaohsiung Veterans General Hospital, Kaohsiung 802, Taiwan
| | - Yi-Ling Tsang
- Institute of Physiological Chemistry and Pathobiochemistry and Cells in Motion Interfaculty Centre (CiMIC), University of Münster, Münster 48149, Germany
| | - Chen-Hsin Kuo
- Genomics Research Center, Academia Sinica, Taipei 115, Taiwan
| | - Chia-Jung Li
- Department of Obstetrics and Gynecology, Kaohsiung Veterans General Hospital, Kaohsiung 813, Taiwan
- Institute of BioPharmaceutical Sciences, National Sun Yat-Sen University, Kaohsiung 804, Taiwan
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Lee JY, Kang BY, Jung SJ, Kwak AW, Lee SO, Park JW, Joo SH, Yoon G, Lee MH, Shim JH. Picropodophyllotoxin Inhibits Cell Growth and Induces Apoptosis in Gefitinib-Resistant Non-Small Lung Cancer Cells by Dual-Targeting EGFR and MET. Biomol Ther (Seoul) 2023; 31:200-209. [PMID: 36281696 PMCID: PMC9970835 DOI: 10.4062/biomolther.2022.113] [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: 08/26/2022] [Revised: 09/05/2022] [Accepted: 09/06/2022] [Indexed: 11/05/2022] Open
Abstract
Patients with non-small-cell lung cancer (NSCLC) with epidermal growth factor receptor (EGFR) amplification or sensitive mutations initially respond to the tyrosine kinase inhibitor gefitinib, however, the treatment becomes less effective over time by resistance mechanism including mesenchymal-epithelial transition (MET) overexpression. A therapeutic strategy targeting MET and EGFR may be a means to overcoming resistance to gefitinib. In the present study, we found that picropodophyllotoxin (PPT), derived from the roots of Podophyllum hexandrum, inhibited both EGFR and MET in NSCLC cells. The antitumor efficacy of PPT in gefitinib-resistant NSCLC cells (HCC827GR), was confirmed by suppression of cell proliferation and anchorage-independent colony growth. In the targeting of EGFR and MET, PPT bound with EGFR and MET, ex vivo, and blocked both kinases activity. The binding sites between PPT and EGFR or MET in the computational docking model were predicted at Gly772/Met769 and Arg1086/Tyr1230 of each ATP-binding pocket, respectively. PPT treatment of HCC827GR cells increased the number of annexin V-positive and subG1 cells. PPT also caused G2/M cell-cycle arrest together with related protein regulation. The inhibition of EGFR and MET by PPT treatment led to decreases in the phosphorylation of the downstream-proteins, AKT and ERK. In addition, PPT induced reactive oxygen species (ROS) production and GRP78, CHOP, DR5, and DR4 expression, mitochondrial dysfunction, and regulated involving signal-proteins. Taken together, PPT alleviated gefitinib-resistant NSCLC cell growth and induced apoptosis by reducing EGFR and MET activity. Therefore, our results suggest that PPT can be a promising therapeutic agent for gefitinib-resistant NSCLC.
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Affiliation(s)
- Jin-Young Lee
- Department of Biological Sciences, Keimyung University, Daegu 42601, Republic of Korea
| | - Bok Yun Kang
- College of Pharmacy, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Sang-Jin Jung
- Department of Pharmacy, College of Pharmacy, Mokpo National University, Muan 58554, Republic of Korea
| | - Ah-Won Kwak
- Department of Pharmacy, College of Pharmacy, Mokpo National University, Muan 58554, Republic of Korea
| | - Seung-On Lee
- Department of Biomedicine, Health & Life Convergence Sciences, BK21 Four, College of Pharmacy, Mokpo National University, Muan 58554, Republic of Korea
| | - Jin Woo Park
- Department of Pharmacy, College of Pharmacy, Mokpo National University, Muan 58554, Republic of Korea,Department of Biomedicine, Health & Life Convergence Sciences, BK21 Four, College of Pharmacy, Mokpo National University, Muan 58554, Republic of Korea
| | - Sang Hoon Joo
- College of Pharmacy, Daegu Catholic University, Gyeongsan 38430, Republic of Korea
| | - Goo Yoon
- Department of Pharmacy, College of Pharmacy, Mokpo National University, Muan 58554, Republic of Korea
| | - Mee-Hyun Lee
- College of Korean Medicine, Dongshin University, Naju 58245, Republic of Korea,Corresponding Authors E-mail: (Shim JH), (Lee MH), Tel: +82-61-450-2684 (Shim JH), +82-61-330-3516 (Lee MH), Fax: +82-61-450-2689 (Shim JH), +82-61-330-3519 (Lee MH)
| | - Jung-Hyun Shim
- Department of Pharmacy, College of Pharmacy, Mokpo National University, Muan 58554, Republic of Korea,Department of Biomedicine, Health & Life Convergence Sciences, BK21 Four, College of Pharmacy, Mokpo National University, Muan 58554, Republic of Korea,The China-US (Henan) Hormel Cancer Institute, Zhengzhou, Henan 450008, China,Corresponding Authors E-mail: (Shim JH), (Lee MH), Tel: +82-61-450-2684 (Shim JH), +82-61-330-3516 (Lee MH), Fax: +82-61-450-2689 (Shim JH), +82-61-330-3519 (Lee MH)
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Estaras M, Ortiz-Placin C, Castillejo-Rufo A, Fernandez-Bermejo M, Blanco G, Mateos JM, Vara D, Gonzalez-Cordero PL, Chamizo S, Lopez D, Rojas A, Jaen I, de Armas N, Salido GM, Iovanna JL, Santofimia-Castaño P, Gonzalez A. Melatonin controls cell proliferation and modulates mitochondrial physiology in pancreatic stellate cells. J Physiol Biochem 2023; 79:235-249. [PMID: 36334253 PMCID: PMC9905253 DOI: 10.1007/s13105-022-00930-4] [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: 06/04/2022] [Accepted: 10/21/2022] [Indexed: 11/06/2022]
Abstract
We have investigated the effects of melatonin on major pathways related with cellular proliferation and energetic metabolism in pancreatic stellate cells. In the presence of melatonin (1 mM, 100 µM, 10 µM, or 1 µM), decreases in the phosphorylation of c-Jun N-terminal kinase and of p44/42 and an increase in the phosphorylation of p38 were observed. Cell viability dropped in the presence of melatonin. A rise in the phosphorylation of AMP-activated protein kinase was detected in the presence of 1 mM and 100 µM melatonin. Treatment with 1 mM melatonin decreased the phosphorylation of protein kinase B, whereas 100 µM and 10 µM melatonin increased its phosphorylation. An increase in the generation of mitochondrial reactive oxygen species and a decrease of mitochondrial membrane potential were noted following melatonin treatment. Basal and maximal respiration, ATP production by oxidative phosphorylation, spare capacity, and proton leak dropped in the presence of melatonin. The expression of complex I of the mitochondrial respiratory chain was augmented in the presence of melatonin. Conversely, in the presence of 1 mM melatonin, decreases in the expression of mitofusins 1 and 2 were detected. The glycolysis and the glycolytic capacity were diminished in cells treated with 1 mM or 100 µM melatonin. Increases in the expression of phosphofructokinase-1 and lactate dehydrogenase were noted in cells incubated with 100 µM, 10 µM, or 1 µM melatonin. The expression of glucose transporter 1 was increased in cells incubated with 10 µM or 1 µM melatonin. Conversely, 1 mM melatonin decreased the expression of all three proteins. Our results suggest that melatonin, at pharmacological concentrations, might modulate mitochondrial physiology and energy metabolism in addition to major pathways involved in pancreatic stellate cell proliferation.
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Affiliation(s)
- Matias Estaras
- grid.8393.10000000119412521Departamento de Fisiología, Instituto de Biomarcadores de Patologías Moleculares, Universidad de Extremadura, Avenida de Las Ciencias S/N, 10003 Cáceres, Spain
| | - Candido Ortiz-Placin
- grid.8393.10000000119412521Departamento de Fisiología, Instituto de Biomarcadores de Patologías Moleculares, Universidad de Extremadura, Avenida de Las Ciencias S/N, 10003 Cáceres, Spain
| | - Alba Castillejo-Rufo
- grid.8393.10000000119412521Departamento de Fisiología, Instituto de Biomarcadores de Patologías Moleculares, Universidad de Extremadura, Avenida de Las Ciencias S/N, 10003 Cáceres, Spain
| | | | - Gerardo Blanco
- Unidad de Cirugía Hepatobiliopancreática Y Transplante Hepático, Hospital Universitario, Badajoz, Spain
| | - Jose M. Mateos
- Departamento de Gastroenterología, Hospital Universitario, Cáceres, Spain
| | - Daniel Vara
- Departamento de Gastroenterología, Hospital Universitario, Cáceres, Spain
| | | | - Sandra Chamizo
- Departamento de Gastroenterología, Hospital Universitario, Cáceres, Spain
| | - Diego Lopez
- Unidad de Cirugía Hepatobiliopancreática Y Transplante Hepático, Hospital Universitario, Badajoz, Spain
| | - Adela Rojas
- Unidad de Cirugía Hepatobiliopancreática Y Transplante Hepático, Hospital Universitario, Badajoz, Spain
| | - Isabel Jaen
- Unidad de Cirugía Hepatobiliopancreática Y Transplante Hepático, Hospital Universitario, Badajoz, Spain
| | - Noelia de Armas
- Unidad de Cirugía Hepatobiliopancreática Y Transplante Hepático, Hospital Universitario, Badajoz, Spain
| | - Gines M. Salido
- grid.8393.10000000119412521Departamento de Fisiología, Instituto de Biomarcadores de Patologías Moleculares, Universidad de Extremadura, Avenida de Las Ciencias S/N, 10003 Cáceres, Spain
| | - Juan L. Iovanna
- grid.5399.60000 0001 2176 4817Centre de Recherche en Cancérologie de Marseille, INSERM U1068, CNRS UMR 7258, Aix-Marseille Université and Institut Paoli-Calmettes, Parc Scientifique Et Technologique de Luminy, Marseille, France
| | - Patricia Santofimia-Castaño
- grid.5399.60000 0001 2176 4817Centre de Recherche en Cancérologie de Marseille, INSERM U1068, CNRS UMR 7258, Aix-Marseille Université and Institut Paoli-Calmettes, Parc Scientifique Et Technologique de Luminy, Marseille, France
| | - Antonio Gonzalez
- Departamento de Fisiología, Instituto de Biomarcadores de Patologías Moleculares, Universidad de Extremadura, Avenida de Las Ciencias S/N, 10003, Cáceres, Spain.
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Shen S, Tong Y, Luo Y, Huang L, Gao W. Biosynthesis, total synthesis, and pharmacological activities of aryltetralin-type lignan podophyllotoxin and its derivatives. Nat Prod Rep 2022; 39:1856-1875. [PMID: 35913409 DOI: 10.1039/d2np00028h] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Covering: up to 2022Podophyllotoxin (PTOX, 1), a kind of aryltetralin-type lignan, was first discovered in the plant Podophyllum peltatum and its structure was clarified by W. Borsche and J. Niemann in 1932. Due to its potent anti-cancer and anti-viral activities, it is considered one of the molecules most likely to be developed into modern drugs. With the increasing market demand and insufficient storage of natural resources, it is crucial to expand the sources of PTOXs. The original extraction method from plants has gradually failed to meet the requirements, and the biosynthesis and total synthesis have become the forward-looking alternatives. As key enzymes in the biosynthetic pathway of PTOXs and their catalytic mechanisms being constantly revealed, it is possible to realize the heterogeneous biosynthesis of PTOXs in the future. Chemical and chemoenzymatic synthesis also provide schemes for strictly controlling the asymmetric configuration of the tetracyclic core. Currently, the pharmacological activities of some PTOX derivatives have been extensively studied, laying the foundation for clinical candidate drugs. This review focuses primarily on the latest research progress in the biosynthesis, total synthesis, and pharmacological activities of PTOX and its derivatives, providing a more comprehensive understanding of these widely used compounds and supporting the future search for clinical applications.
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Affiliation(s)
- Siyu Shen
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China. .,Beijing Shijitan Hospital, Capital Medical University, Beijing 100038, China
| | - Yuru Tong
- School of Pharmaceutical Sciences, Capital Medical University, Beijing, 100069, China
| | - Yunfeng Luo
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China.
| | - Luqi Huang
- State Key Laboratory Breeding Base of Dao-di Herbs, National Resource Center for Chinese Materia Medica, Chinese Academy of Chinese Medical Sciences, Beijing 100700, China.
| | - Wei Gao
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China. .,Beijing Shijitan Hospital, Capital Medical University, Beijing 100038, China
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The Anti-Cancer Potential of Heat-Killed Lactobacillus brevis KU15176 upon AGS Cell Lines through Intrinsic Apoptosis Pathway. Int J Mol Sci 2022; 23:ijms23084073. [PMID: 35456891 PMCID: PMC9024609 DOI: 10.3390/ijms23084073] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 04/04/2022] [Accepted: 04/05/2022] [Indexed: 02/01/2023] Open
Abstract
Recent research has focused on the anti-cancer properties of Lactobacillus strains isolated from fermented foods. Their anti-cancer effects are caused by the apoptosis induction in cancer cells. However, sepsis, which can occur when cancer patients consume living organisms, can cause serious conditions in patients with reduced immunity because of cancer. Therefore, this study was conducted using heat-killed Lactobacillus brevis KU15176 (KU15176). To determine the relationship between inflammation and cancer, the anti-inflammatory effect of KU15176 was evaluated using a nitric oxide (NO) assay. Then, 3-[4,5-dimethylthiazol-2-yl]-2,5 diphenyl tetrazolium bromide (MTT) assay was conducted to select cancer cells that showed the anti-proliferative effect of KU15176. Next, reverse transcription-polymerase chain reaction (RT-PCR), 4′,6-diamidino-2-phenylindole (DAPI) staining, flow cytometry, and caspase colorimetric assay were performed. As a result, it was confirmed that KU15176 could cause the increasing expression of apoptosis-related genes (Bax, caspase-3, and caspase-9), DNA breakage, effective apoptosis rate, and increased caspase activity in the human stomach adenocarcinoma (AGS) gastric cancer cell line. In conclusion, these results suggest a potential prophylactic effect of KU15176 against cancer.
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