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Yan M, Su L, Wu K, Mei Y, Liu Z, Chen Y, Zeng W, Xiao Y, Zhang J, Cai G, Bai Y. USP7 promotes cardiometabolic disorders and mitochondrial homeostasis dysfunction in diabetic mice via stabilizing PGC1β. Pharmacol Res 2024; 205:107235. [PMID: 38815879 DOI: 10.1016/j.phrs.2024.107235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 05/22/2024] [Accepted: 05/23/2024] [Indexed: 06/01/2024]
Abstract
Diabetic cardiomyopathy (DCM) is a major complication of diabetes and is characterized by left ventricular dysfunction. Currently, there is a lack of effective treatments for DCM. Ubiquitin-specific protease 7 (USP7) plays a key role in various diseases. However, whether USP7 is involved in DCM has not been established. In this study, we demonstrated that USP7 was upregulated in diabetic mouse hearts and NMCMs co-treated with HG+PA or H9c2 cells treated with PA. Abnormalities in diabetic heart morphology and function were reversed by USP7 silencing through conditional gene knockout or chemical inhibition. Proteomic analysis coupled with biochemical validation confirmed that PCG1β was one of the direct protein substrates of USP7 and aggravated myocardial damage through coactivation of the PPARα signaling pathway. USP7 silencing restored the expression of fatty acid metabolism-related proteins and restored mitochondrial homeostasis by inhibiting mitochondrial fission and promoting fusion events. Similar effects were also observed in vitro. Our data demonstrated that USP7 promoted cardiometabolic metabolism disorders and mitochondrial homeostasis dysfunction via stabilizing PCG1β and suggested that silencing USP7 may be a therapeutic strategy for DCM.
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Affiliation(s)
- Meiling Yan
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western Medicine, China; Key Laboratory of Glucolipid Metabolic Disorder, Ministry of Education of China, Guangzhou, China; Guangdong Key Laboratory of Metabolic Disease Prevention and Treatment of Traditional Chinese Medicine, China; Institute of Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, China.
| | - Liyan Su
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western Medicine, China; Key Laboratory of Glucolipid Metabolic Disorder, Ministry of Education of China, Guangzhou, China; Guangdong Key Laboratory of Metabolic Disease Prevention and Treatment of Traditional Chinese Medicine, China
| | - Kaile Wu
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western Medicine, China; Key Laboratory of Glucolipid Metabolic Disorder, Ministry of Education of China, Guangzhou, China; Guangdong Key Laboratory of Metabolic Disease Prevention and Treatment of Traditional Chinese Medicine, China; Institute of Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, China
| | - Yu Mei
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western Medicine, China; Key Laboratory of Glucolipid Metabolic Disorder, Ministry of Education of China, Guangzhou, China; Guangdong Key Laboratory of Metabolic Disease Prevention and Treatment of Traditional Chinese Medicine, China; Institute of Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, China
| | - Zhou Liu
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western Medicine, China; Key Laboratory of Glucolipid Metabolic Disorder, Ministry of Education of China, Guangzhou, China; Guangdong Key Laboratory of Metabolic Disease Prevention and Treatment of Traditional Chinese Medicine, China; Institute of Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, China
| | - Yifan Chen
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western Medicine, China; Key Laboratory of Glucolipid Metabolic Disorder, Ministry of Education of China, Guangzhou, China; Guangdong Key Laboratory of Metabolic Disease Prevention and Treatment of Traditional Chinese Medicine, China; Institute of Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, China
| | - Wenru Zeng
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western Medicine, China; Key Laboratory of Glucolipid Metabolic Disorder, Ministry of Education of China, Guangzhou, China; Guangdong Key Laboratory of Metabolic Disease Prevention and Treatment of Traditional Chinese Medicine, China; Institute of Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, China
| | - Yang Xiao
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western Medicine, China; Key Laboratory of Glucolipid Metabolic Disorder, Ministry of Education of China, Guangzhou, China; Guangdong Key Laboratory of Metabolic Disease Prevention and Treatment of Traditional Chinese Medicine, China; Institute of Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, China
| | - Jingfei Zhang
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western Medicine, China; Key Laboratory of Glucolipid Metabolic Disorder, Ministry of Education of China, Guangzhou, China; Guangdong Key Laboratory of Metabolic Disease Prevention and Treatment of Traditional Chinese Medicine, China; Institute of Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, China
| | - Guida Cai
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western Medicine, China; Key Laboratory of Glucolipid Metabolic Disorder, Ministry of Education of China, Guangzhou, China; Guangdong Key Laboratory of Metabolic Disease Prevention and Treatment of Traditional Chinese Medicine, China; Institute of Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, China
| | - Yunlong Bai
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western Medicine, China; Key Laboratory of Glucolipid Metabolic Disorder, Ministry of Education of China, Guangzhou, China; Guangdong Key Laboratory of Metabolic Disease Prevention and Treatment of Traditional Chinese Medicine, China; Institute of Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, China; Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, China; Translational Medicine Research and Cooperation Center of Northern China, Chronic Disease Research Institute, Heilongjiang Academy of Medical Sciences, Harbin, China.
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2
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Francis JC, Capper A, Rust AG, Ferro K, Ning J, Yuan W, de Bono J, Pettitt SJ, Swain A. Identification of genes that promote PI3K pathway activation and prostate tumour formation. Oncogene 2024; 43:1824-1835. [PMID: 38654106 PMCID: PMC11164682 DOI: 10.1038/s41388-024-03028-x] [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: 09/15/2023] [Revised: 04/02/2024] [Accepted: 04/05/2024] [Indexed: 04/25/2024]
Abstract
We have performed a functional in vivo mutagenesis screen to identify genes that, when altered, cooperate with a heterozygous Pten mutation to promote prostate tumour formation. Two genes, Bzw2 and Eif5a2, which have been implicated in the process of protein translation, were selected for further validation. Using prostate organoid models, we show that either Bzw2 downregulation or EIF5A2 overexpression leads to increased organoid size and in vivo prostate growth. We show that both genes impact the PI3K pathway and drive a sustained increase in phospho-AKT expression, with PTEN protein levels reduced in both models. Mechanistic studies reveal that EIF5A2 is directly implicated in PTEN protein translation. Analysis of patient datasets identified EIF5A2 amplifications in many types of human cancer, including the prostate. Human prostate cancer samples in two independent cohorts showed a correlation between increased levels of EIF5A2 and upregulation of a PI3K pathway gene signature. Consistent with this, organoids with high levels of EIF5A2 were sensitive to AKT inhibitors. Our study identified novel genes that promote prostate cancer formation through upregulation of the PI3K pathway, predicting a strategy to treat patients with genetic aberrations in these genes particularly relevant for EIF5A2 amplified tumours.
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Affiliation(s)
- Jeffrey C Francis
- Division of Cancer Biology, Institute of Cancer Research, London, SW3 6JB, UK
| | - Amy Capper
- Division of Cancer Biology, Institute of Cancer Research, London, SW3 6JB, UK
| | - Alistair G Rust
- Genomics Facility, Institute of Cancer Research, London, UK
- Genomic Data Sciences, GlaxoSmithKline, Stevenage, UK
| | - Klea Ferro
- Division of Cancer Biology, Institute of Cancer Research, London, SW3 6JB, UK
| | - Jian Ning
- Tumour Modelling Facility, Institute of Cancer Research, London, SW3 6JB, UK
| | - Wei Yuan
- Institute of Cancer Research and Royal Marsden Hospital, London, UK
| | - Johann de Bono
- Institute of Cancer Research and Royal Marsden Hospital, London, UK
| | - Stephen J Pettitt
- The CRUK Gene Function Laboratory, Breast Cancer Now Toby Robins Research Centre, Institute of Cancer Research, London, SW3 6JB, UK
| | - Amanda Swain
- Division of Cancer Biology, Institute of Cancer Research, London, SW3 6JB, UK.
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3
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Žukauskaitė G, Domarkienė I, Rančelis T, Kavaliauskienė I, Baronas K, Kučinskas V, Ambrozaitytė L. Putative protective genomic variation in the Lithuanian population. Genet Mol Biol 2024; 47:e20230030. [PMID: 38626572 PMCID: PMC11021042 DOI: 10.1590/1678-4685-gmb-2023-0030] [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: 02/03/2023] [Accepted: 01/01/2024] [Indexed: 04/18/2024] Open
Abstract
Genomic effect variants associated with survival and protection against complex diseases vary between populations due to microevolutionary processes. The aim of this study was to analyse diversity and distribution of effect variants in a context of potential positive selection. In total, 475 individuals of Lithuanian origin were genotyped using high-throughput scanning and/or sequencing technologies. Allele frequency analysis for the pre-selected effect variants was performed using the catalogue of single nucleotide polymorphisms. Comparison of the pre-selected effect variants with variants in primate species was carried out to ascertain which allele was derived and potentially of protective nature. Recent positive selection analysis was performed to verify this protective effect. Four variants having significantly different frequencies compared to European populations were identified while two other variants reached borderline significance. Effect variant in SLC30A8 gene may potentially protect against type 2 diabetes. The existing paradox of high rates of type 2 diabetes in the Lithuanian population and the relatively high frequencies of potentially protective genome variants against it indicate a lack of knowledge about the interactions between environmental factors, regulatory regions, and other genome variation. Identification of effect variants is a step towards better understanding of the microevolutionary processes, etiopathogenetic mechanisms, and personalised medicine.
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Affiliation(s)
- Gabrielė Žukauskaitė
- Vilnius University, Faculty of Medicine, Institute of Biomedical Sciences, Department of Human and Medical Genetics, Vilnius, Lithuania
| | - Ingrida Domarkienė
- Vilnius University, Faculty of Medicine, Institute of Biomedical Sciences, Department of Human and Medical Genetics, Vilnius, Lithuania
| | - Tautvydas Rančelis
- Vilnius University, Faculty of Medicine, Institute of Biomedical Sciences, Department of Human and Medical Genetics, Vilnius, Lithuania
| | - Ingrida Kavaliauskienė
- Vilnius University, Faculty of Medicine, Institute of Biomedical Sciences, Department of Human and Medical Genetics, Vilnius, Lithuania
| | - Karolis Baronas
- Vilnius University, Faculty of Medicine, Institute of Biomedical Sciences, Department of Human and Medical Genetics, Vilnius, Lithuania
| | - Vaidutis Kučinskas
- Vilnius University, Faculty of Medicine, Institute of Biomedical Sciences, Department of Human and Medical Genetics, Vilnius, Lithuania
| | - Laima Ambrozaitytė
- Vilnius University, Faculty of Medicine, Institute of Biomedical Sciences, Department of Human and Medical Genetics, Vilnius, Lithuania
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Smith T, White T, Chen Z, Stewart LV. The KDM5 inhibitor PBIT reduces proliferation of castration-resistant prostate cancer cells via cell cycle arrest and the induction of senescence. Exp Cell Res 2024; 437:113991. [PMID: 38462208 PMCID: PMC11091958 DOI: 10.1016/j.yexcr.2024.113991] [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: 03/01/2024] [Accepted: 03/02/2024] [Indexed: 03/12/2024]
Abstract
The compound 2-4(4-methylphenyl)-1,2-benzisothiazol-3(2H)-one (PBIT) is an inhibitor of the KDM5 family of lysine-specific histone demethylases that has been suggested as a lead compound for cancer therapy. The goal of this study was to explore the effects of PBIT within human prostate cancers. Micromolar concentrations of PBIT altered proliferation of castration-sensitive LNCaP and castration-resistant C4-2B, LNCaP-MDV3100 and PC-3 human prostate cancer cell lines. We then characterized the mechanism underlying the anti-proliferative effects of PBIT within the C4-2B and PC-3 cell lines. Data from Cell Death ELISAs suggest that PBIT does not induce apoptosis within C4-2B or PC-3 cells. However, PBIT did increase the amount of senescence associated beta-galactosidase. PBIT also altered cell cycle progression and increased protein levels of the cell cycle protein p21. PC-3 and C4-2B cells express varying amounts of KDM5A, KDM5B, and KDM5C, the therapeutic targets of PBIT. siRNA-mediated knockdown studies suggest that inhibition of multiple KDM5 isoforms contribute to the anti-proliferative effect of PBIT. Furthermore, combination treatments involving PBIT and the PPARγ agonist 15-deoxy-Δ-12, 14 -prostaglandin J2 (15d-PGJ₂) also reduced PC-3 cell proliferation. Together, these data strongly suggest that PBIT significantly reduces the proliferation of prostate cancers via a mechanism that involves cell cycle arrest and senescence.
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Affiliation(s)
- Tunde Smith
- Department of Biochemistry, Cancer Biology, Neuroscience and Pharmacology, Meharry Medical College, Nashville, TN, 37208, USA
| | - Tytianna White
- Department of Biochemistry, Cancer Biology, Neuroscience and Pharmacology, Meharry Medical College, Nashville, TN, 37208, USA
| | - Zhenbang Chen
- Department of Biochemistry, Cancer Biology, Neuroscience and Pharmacology, Meharry Medical College, Nashville, TN, 37208, USA
| | - LaMonica V Stewart
- Department of Biochemistry, Cancer Biology, Neuroscience and Pharmacology, Meharry Medical College, Nashville, TN, 37208, USA.
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5
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Zhang T, Chen X, Ju X, Yuan J, Zhou J, Zhang Z, Ju G, Xu D. PPARG is a potential target of Tanshinone IIA in prostate cancer treatment: a combination study of molecular docking and dynamic simulation based on transcriptomic bioinformatics. Eur J Med Res 2023; 28:487. [PMID: 37932808 PMCID: PMC10626789 DOI: 10.1186/s40001-023-01477-w] [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: 10/05/2023] [Accepted: 10/26/2023] [Indexed: 11/08/2023] Open
Abstract
Tanshinone IIA is a lipophilic organic compound from the root of Danshen (Salvia miltiorrhiza) and is one of the most well-known Tanshinone molecules by pharmacologists. In recent years, in addition to effects of anti-cardiovascular and neurological diseases, Tanshinone IIA has also shown some degrees of anti-prostate cancer potential. Although they do have some studies focusing on the molecular mechanism of Tanshinone IIA's anti-prostate cancer effects, a further understanding on the transcriptomic and structural level is still lacking. In this study, transcriptomic sequencing technology and computer technology were employed to illustrate the effects of Tanshinone IIA on prostate cancer through bioinformatic analysis and molecular dynamics simulation, and PPARG was considered to be one of the targets for Tanshinone IIA according to docking scoring and dynamic calculation. Our study provides a novel direction to further understand the mechanism of the effects of Tanshinone IIA on prostate cancer, and further molecular biological studies need to be carried on to further investigate the molecular mechanism of Tanshinone IIA's anti-prostate cancer effect through PPARG.
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Affiliation(s)
- Tongtong Zhang
- Urology Centre, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200000, China
- Institute of Surgery of Integrated Traditional Chinese and Western Medicine, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200000, China
| | - Xinglin Chen
- Urology Centre, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200000, China
- Institute of Surgery of Integrated Traditional Chinese and Western Medicine, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200000, China
| | - Xiran Ju
- Urology Centre, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200000, China
- Institute of Surgery of Integrated Traditional Chinese and Western Medicine, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200000, China
| | - Jixiang Yuan
- Urology Centre, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200000, China
- Institute of Surgery of Integrated Traditional Chinese and Western Medicine, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200000, China
| | - Jielong Zhou
- Urology Centre, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200000, China
- Institute of Surgery of Integrated Traditional Chinese and Western Medicine, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200000, China
| | - Zhihang Zhang
- Urology Centre, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200000, China
- Institute of Surgery of Integrated Traditional Chinese and Western Medicine, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200000, China
| | - Guanqun Ju
- Urology Centre, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200000, China.
- Institute of Surgery of Integrated Traditional Chinese and Western Medicine, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200000, China.
| | - Dongliang Xu
- Urology Centre, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200000, China.
- Institute of Surgery of Integrated Traditional Chinese and Western Medicine, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200000, China.
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6
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Shang Y, Morioka T, Daino K, Nakayama T, Nishimura M, Kakinuma S. Ionizing radiation promotes, whereas calorie restriction suppresses, NASH and hepatocellular carcinoma in mice. Int J Cancer 2023; 153:1529-1542. [PMID: 37458118 DOI: 10.1002/ijc.34651] [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: 01/28/2023] [Revised: 06/01/2023] [Accepted: 06/13/2023] [Indexed: 07/18/2023]
Abstract
The pathological conditions of nonalcoholic fatty liver disease and nonalcoholic steatohepatitis (NASH) are the major risk factors for hepatocellular carcinoma (HCC). Exposure to DNA-damaging agents such as ionizing radiation is another risk factor for HCC; calorie restriction (CR), however, effectively delays the onset of radiation-induced HCC. We investigated whether NASH is relevant to radiation-induced HCC and the cancer-preventing effect of CR. Eight-day-old male B6C3F1 mice were irradiated with 3.8 Gy of X-rays and then fed a standard diet or 30% CR diet from 49 days of age until necropsy, which was performed from 56 to 600 days with ~100-day intervals to assess both pathological changes and gene expression levels. We found that early-life exposure to radiation accelerated lipid accumulation and NASH-like histopathological changes in the liver, accompanied by accelerated development of HCC. CR ameliorated the changes in lipid metabolism in the liver and reversed the NASH-like pathology, which effectively delayed HCC development. Gene-expression profiling revealed the radiation-related activation and CR-related suppression of the peroxisome proliferator-activated receptor gamma/Cd36 pathway of transmembrane fatty-acid translocation before development of the NASH-like state. Thus, early-life exposure to radiation affects lipid metabolism and induces a steatoinflammatory microenvironment that favors HCC development. Therefore, targeting this pathway by CR (or measures that mimic CR) may be a promising strategy for preventing HCC caused by either radiation or other DNA-damaging agents.
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Affiliation(s)
- Yi Shang
- Department of Radiation Effects Research, National Institute of Radiological Sciences (NIRS), National Institutes for Quantum Science and Technology (QST), Chiba, Japan
| | - Takamitsu Morioka
- Department of Radiation Effects Research, National Institute of Radiological Sciences (NIRS), National Institutes for Quantum Science and Technology (QST), Chiba, Japan
| | - Kazuhiro Daino
- Department of Radiation Effects Research, National Institute of Radiological Sciences (NIRS), National Institutes for Quantum Science and Technology (QST), Chiba, Japan
| | - Takafumi Nakayama
- Department of Tumor and Diagnostic Pathology, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan
| | - Mayumi Nishimura
- Department of Radiation Effects Research, National Institute of Radiological Sciences (NIRS), National Institutes for Quantum Science and Technology (QST), Chiba, Japan
| | - Shizuko Kakinuma
- Department of Radiation Effects Research, National Institute of Radiological Sciences (NIRS), National Institutes for Quantum Science and Technology (QST), Chiba, Japan
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Bonomini F, Favero G, Petroni A, Paroni R, Rezzani R. Melatonin Modulates the SIRT1-Related Pathways via Transdermal Cryopass-Laser Administration in Prostate Tumor Xenograft. Cancers (Basel) 2023; 15:4908. [PMID: 37894275 PMCID: PMC10605886 DOI: 10.3390/cancers15204908] [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: 09/05/2023] [Revised: 09/29/2023] [Accepted: 10/07/2023] [Indexed: 10/29/2023] Open
Abstract
Melatonin displays antitumor activity in several types of malignancies; however, the best delivery route and the underlying mechanisms are still unclear. Alternative non-invasive delivery route based on transdermal administration of melatonin by cryopass-laser treatment demonstrated efficiency in reducing the progression of LNCaP prostate tumor cells xenografted into nude mice by impairing the biochemical pathways affecting redox balance. Here, we investigated the impact of transdermal melatonin on the tumor dimension, microenvironment structure, and SIRT1-modulated pathways. Two groups (vehicle cryopass-laser and melatonin cryopass-laser) were treated for 6 weeks (3 treatments per week), and the tumors collected were analyzed for hematoxylin eosin staining, sirius red, and SIRT1 modulated proteins such as PGC-1α, PPARγ, and NFkB. Melatonin in addition to simple laser treatment was able to boost the antitumor cancer activity impairing the tumor microenvironment, increasing the collagen structure around the tumor, and modulating the altered SIRT1 pathways. Transdermal application is effective, safe, and feasible in humans as well, and the significance of these findings necessitates further studies on the antitumor mechanisms exerted by melatonin.
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Affiliation(s)
- Francesca Bonomini
- Anatomy and Physiopathology Division, Department of Clinical and Experimental Sciences, University of Brescia, 25123 Brescia, Italy; (F.B.); (G.F.)
- Interdipartimental University Center of Research “Adaption and Regeneration of Tissues and Organs (ARTO)”, University of Brescia, 25123 Brescia, Italy
- Italian Society for the Study of Orofacial Pain (Società Italiana Studio Dolore Orofacciale—SISDO), 25123 Brescia, Italy
| | - Gaia Favero
- Anatomy and Physiopathology Division, Department of Clinical and Experimental Sciences, University of Brescia, 25123 Brescia, Italy; (F.B.); (G.F.)
- Interdipartimental University Center of Research “Adaption and Regeneration of Tissues and Organs (ARTO)”, University of Brescia, 25123 Brescia, Italy
| | - Anna Petroni
- Biomedicine and Nutrition Research Network, Via Paracelso 1, 20129 Milan, Italy;
- Department of Medicine, Surgery and Neuroscience, University of Siena, 53100 Siena, Italy
| | - Rita Paroni
- Clinical Biochemistry and Mass Spectrometry, Department of Health Sciences, San Paolo Hospital, Università degli Studi di Milano, 20142 Milan, Italy;
| | - Rita Rezzani
- Anatomy and Physiopathology Division, Department of Clinical and Experimental Sciences, University of Brescia, 25123 Brescia, Italy; (F.B.); (G.F.)
- Interdipartimental University Center of Research “Adaption and Regeneration of Tissues and Organs (ARTO)”, University of Brescia, 25123 Brescia, Italy
- Italian Society for the Study of Orofacial Pain (Società Italiana Studio Dolore Orofacciale—SISDO), 25123 Brescia, Italy
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8
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Xu L, Che S, Chen H, Liu Q, Shi J, Jin J, Hou Y. PPARγ agonist inhibits c-Myc-mediated colorectal cancer tumor immune escape. J Cell Biochem 2023; 124:1145-1154. [PMID: 37393598 DOI: 10.1002/jcb.30437] [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: 12/28/2022] [Revised: 05/29/2023] [Accepted: 06/05/2023] [Indexed: 07/04/2023]
Abstract
As a master transcription factor, c-Myc plays an important role in promoting tumor immune escape. In addition, PPARγ (peroxisome proliferator-activated receptor γ) regulates cell metabolism, inflammation, and tumor progression, while the effect of PPARγ on c-Myc-mediated tumor immune escape is still unclear. Here we found that cells treated with PPARγ agonist pioglitazone (PIOG) reduced c-Myc protein expression in a PPARγ-dependent manner. qPCR analysis showed that PIOG had no significant effect on c-Myc gene levels. Further analysis showed that PIOG decreased c-Myc protein half-life. Moreover, PIOG increased the binding of c-Myc to PPARγ, and induced c-Myc ubiquitination and degradation. Importantly, c-Myc increased PD-L1 and CD47 immune checkpoint protein expression and promoted tumor immune escape, while PIOG inhibited this event. These findings suggest that PPARγ agonist inhibited c-Myc-mediated tumor immune escape by inducing its ubiquitination and degradation.
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Affiliation(s)
- Liuqian Xu
- Department of Oncology, The Affiliated Wujin Hospital, Jiangsu University, Changzhou, Jiangsu, People's Republic of China
- School of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu, People's Republic of China
| | - Suning Che
- School of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu, People's Republic of China
| | - Huiqing Chen
- School of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu, People's Republic of China
| | - Qian Liu
- Department of Oncology, The Affiliated Wujin Hospital, Jiangsu University, Changzhou, Jiangsu, People's Republic of China
- Department of Oncology, Wujin Clinical College of Xuzhou Medical University, Changzhou, Jiangsu, People's Republic of China
| | - Juanjuan Shi
- School of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu, People's Republic of China
| | - Jianhua Jin
- Department of Oncology, The Affiliated Wujin Hospital, Jiangsu University, Changzhou, Jiangsu, People's Republic of China
- Department of Oncology, Wujin Clinical College of Xuzhou Medical University, Changzhou, Jiangsu, People's Republic of China
| | - Yongzhong Hou
- Department of Oncology, The Affiliated Wujin Hospital, Jiangsu University, Changzhou, Jiangsu, People's Republic of China
- School of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu, People's Republic of China
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9
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Yarmolinsky J, Bouras E, Constantinescu A, Burrows K, Bull CJ, Vincent EE, Martin RM, Dimopoulou O, Lewis SJ, Moreno V, Vujkovic M, Chang KM, Voight BF, Tsao PS, Gunter MJ, Hampe J, Pellatt AJ, Pharoah PDP, Schoen RE, Gallinger S, Jenkins MA, Pai RK, Gill D, Tsilidis KK. Genetically proxied glucose-lowering drug target perturbation and risk of cancer: a Mendelian randomisation analysis. Diabetologia 2023; 66:1481-1500. [PMID: 37171501 PMCID: PMC10317892 DOI: 10.1007/s00125-023-05925-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Accepted: 03/13/2023] [Indexed: 05/13/2023]
Abstract
AIMS/HYPOTHESIS Epidemiological studies have generated conflicting findings on the relationship between glucose-lowering medication use and cancer risk. Naturally occurring variation in genes encoding glucose-lowering drug targets can be used to investigate the effect of their pharmacological perturbation on cancer risk. METHODS We developed genetic instruments for three glucose-lowering drug targets (peroxisome proliferator activated receptor γ [PPARG]; sulfonylurea receptor 1 [ATP binding cassette subfamily C member 8 (ABCC8)]; glucagon-like peptide 1 receptor [GLP1R]) using summary genetic association data from a genome-wide association study of type 2 diabetes in 148,726 cases and 965,732 controls in the Million Veteran Program. Genetic instruments were constructed using cis-acting genome-wide significant (p<5×10-8) SNPs permitted to be in weak linkage disequilibrium (r2<0.20). Summary genetic association estimates for these SNPs were obtained from genome-wide association study (GWAS) consortia for the following cancers: breast (122,977 cases, 105,974 controls); colorectal (58,221 cases, 67,694 controls); prostate (79,148 cases, 61,106 controls); and overall (i.e. site-combined) cancer (27,483 cases, 372,016 controls). Inverse-variance weighted random-effects models adjusting for linkage disequilibrium were employed to estimate causal associations between genetically proxied drug target perturbation and cancer risk. Co-localisation analysis was employed to examine robustness of findings to violations of Mendelian randomisation (MR) assumptions. A Bonferroni correction was employed as a heuristic to define associations from MR analyses as 'strong' and 'weak' evidence. RESULTS In MR analysis, genetically proxied PPARG perturbation was weakly associated with higher risk of prostate cancer (for PPARG perturbation equivalent to a 1 unit decrease in inverse rank normal transformed HbA1c: OR 1.75 [95% CI 1.07, 2.85], p=0.02). In histological subtype-stratified analyses, genetically proxied PPARG perturbation was weakly associated with lower risk of oestrogen receptor-positive breast cancer (OR 0.57 [95% CI 0.38, 0.85], p=6.45×10-3). In co-localisation analysis, however, there was little evidence of shared causal variants for type 2 diabetes liability and cancer endpoints in the PPARG locus, although these analyses were likely underpowered. There was little evidence to support associations between genetically proxied PPARG perturbation and colorectal or overall cancer risk or between genetically proxied ABCC8 or GLP1R perturbation with risk across cancer endpoints. CONCLUSIONS/INTERPRETATION Our drug target MR analyses did not find consistent evidence to support an association of genetically proxied PPARG, ABCC8 or GLP1R perturbation with breast, colorectal, prostate or overall cancer risk. Further evaluation of these drug targets using alternative molecular epidemiological approaches may help to further corroborate the findings presented in this analysis. DATA AVAILABILITY Summary genetic association data for select cancer endpoints were obtained from the public domain: breast cancer ( https://bcac.ccge.medschl.cam.ac.uk/bcacdata/ ); and overall prostate cancer ( http://practical.icr.ac.uk/blog/ ). Summary genetic association data for colorectal cancer can be accessed by contacting GECCO (kafdem at fredhutch.org). Summary genetic association data on advanced prostate cancer can be accessed by contacting PRACTICAL (practical at icr.ac.uk). Summary genetic association data on type 2 diabetes from Vujkovic et al (Nat Genet, 2020) can be accessed through dbGAP under accession number phs001672.v3.p1 (pha004945.1 refers to the European-specific summary statistics). UK Biobank data can be accessed by registering with UK Biobank and completing the registration form in the Access Management System (AMS) ( https://www.ukbiobank.ac.uk/enable-your-research/apply-for-access ).
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Affiliation(s)
- James Yarmolinsky
- MRC Integrative Epidemiology Unit, University of Bristol, Bristol, UK.
- Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK.
| | - Emmanouil Bouras
- Department of Hygiene and Epidemiology, University of Ioannina Medical School, Ioannina, Greece
| | - Andrei Constantinescu
- MRC Integrative Epidemiology Unit, University of Bristol, Bristol, UK
- Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
| | - Kimberley Burrows
- MRC Integrative Epidemiology Unit, University of Bristol, Bristol, UK
- Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
| | - Caroline J Bull
- MRC Integrative Epidemiology Unit, University of Bristol, Bristol, UK
- Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
- School of Translational Health Sciences, University of Bristol, Bristol, UK
| | - Emma E Vincent
- MRC Integrative Epidemiology Unit, University of Bristol, Bristol, UK
- Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
- School of Translational Health Sciences, University of Bristol, Bristol, UK
| | - Richard M Martin
- MRC Integrative Epidemiology Unit, University of Bristol, Bristol, UK
- Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
- NIHR Bristol Biomedical Research Centre, University Hospitals Bristol and Weston NHS Foundation Trust and the University of Bristol, Bristol, UK
| | - Olympia Dimopoulou
- MRC Integrative Epidemiology Unit, University of Bristol, Bristol, UK
- Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
| | - Sarah J Lewis
- MRC Integrative Epidemiology Unit, University of Bristol, Bristol, UK
- Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
| | - Victor Moreno
- Biomarkers and Susceptibility Unit, Oncology Data Analytics Program, Catalan Institute of Oncology (ICO), L'Hospitalet de Llobregat, Barcelona, Spain
- Colorectal Cancer Group, ONCOBELL Program, Bellvitge Biomedical Research Institute (IDIBELL), L'Hospitalet de Llobregat, Barcelona, Spain
- Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), Madrid, Spain
- Department of Clinical Sciences, Faculty of Medicine, University of Barcelona, Barcelona, Spain
| | - Marijana Vujkovic
- Corporal Michael J. Crescenz VA Medical Center, Philadelphia, PA, USA
- Department of Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - Kyong-Mi Chang
- Corporal Michael J. Crescenz VA Medical Center, Philadelphia, PA, USA
- Department of Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - Benjamin F Voight
- Corporal Michael J. Crescenz VA Medical Center, Philadelphia, PA, USA
- Department of Systems Pharmacology and Translational Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
- Department of Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
- Institute of Translational Medicine and Therapeutics, University of Pennsylvania, Philadelphia, PA, USA
| | - Philip S Tsao
- VA Palo Alto Epidemiology Research and Information Center for Genomics, VA Palo Alto Health Care System, Palo Alto, CA, USA
- Department of Medicine, Stanford University School of Medicine, Stanford, CA, USA
- Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, USA
| | - Marc J Gunter
- Nutrition and Metabolism Section, International Agency for Research on Cancer, World Health Organization, Lyon, France
| | - Jochen Hampe
- Department of Medicine I, University Hospital Dresden, Technische Universität Dresden (TU Dresden), Dresden, Germany
| | | | - Paul D P Pharoah
- Department of Public Health and Primary Care, University of Cambridge, Cambridge, UK
| | - Robert E Schoen
- Department of Medicine and Epidemiology, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Steven Gallinger
- Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, University of Toronto, Toronto, ON, Canada
| | - Mark A Jenkins
- Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Melbourne, VIC, Australia
| | - Rish K Pai
- Department of Laboratory Medicine and Pathology, Mayo Clinic Arizona, Scottsdale, AZ, USA
| | - Dipender Gill
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, St Mary's Campus, London, UK
| | - Kostas K Tsilidis
- Department of Hygiene and Epidemiology, University of Ioannina Medical School, Ioannina, Greece
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, St Mary's Campus, London, UK
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10
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Jiang Z, Ju Y, Ali A, Chung PED, Skowron P, Wang DY, Shrestha M, Li H, Liu JC, Vorobieva I, Ghanbari-Azarnier R, Mwewa E, Koritzinsky M, Ben-David Y, Woodgett JR, Perou CM, Dupuy A, Bader GD, Egan SE, Taylor MD, Zacksenhaus E. Distinct shared and compartment-enriched oncogenic networks drive primary versus metastatic breast cancer. Nat Commun 2023; 14:4313. [PMID: 37463901 PMCID: PMC10354065 DOI: 10.1038/s41467-023-39935-y] [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: 06/22/2022] [Accepted: 06/16/2023] [Indexed: 07/20/2023] Open
Abstract
Metastatic breast-cancer is a major cause of death in women worldwide, yet the relationship between oncogenic drivers that promote metastatic versus primary cancer is still contentious. To elucidate this relationship in treatment-naive animals, we hereby describe mammary-specific transposon-mutagenesis screens in female mice together with loss-of-function Rb, which is frequently inactivated in breast-cancer. We report gene-centric common insertion-sites (gCIS) that are enriched in primary-tumors, in metastases or shared by both compartments. Shared-gCIS comprise a major MET-RAS network, whereas metastasis-gCIS form three additional hubs: Rho-signaling, Ubiquitination and RNA-processing. Pathway analysis of four clinical cohorts with paired primary-tumors and metastases reveals similar organization in human breast-cancer with subtype-specific shared-drivers (e.g. RB1-loss, TP53-loss, high MET, RAS, ER), primary-enriched (EGFR, TGFβ and STAT3) and metastasis-enriched (RHO, PI3K) oncogenic signaling. Inhibitors of RB1-deficiency or MET plus RHO-signaling cooperate to block cell migration and drive tumor cell-death. Thus, targeting shared- and metastasis- but not primary-enriched derivers offers a rational avenue to prevent metastatic breast-cancer.
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Affiliation(s)
- Zhe Jiang
- Toronto General Research Institute - University Health Network, 101 College Street, Max Bell Research Centre, suite 5R406, Toronto, ON, M5G 1L7, Canada
| | - YoungJun Ju
- Toronto General Research Institute - University Health Network, 101 College Street, Max Bell Research Centre, suite 5R406, Toronto, ON, M5G 1L7, Canada
| | - Amjad Ali
- Toronto General Research Institute - University Health Network, 101 College Street, Max Bell Research Centre, suite 5R406, Toronto, ON, M5G 1L7, Canada
| | - Philip E D Chung
- Toronto General Research Institute - University Health Network, 101 College Street, Max Bell Research Centre, suite 5R406, Toronto, ON, M5G 1L7, Canada
- Laboratory Medicine & Pathobiology, University of Toronto, Toronto, ON, Canada
| | - Patryk Skowron
- Laboratory Medicine & Pathobiology, University of Toronto, Toronto, ON, Canada
- Program in Developmental & Stem Cell Biology Program, The Hospital for Sick Children, Toronto, ON, Canada
- The Arthur and Sonia Labatt Brain Tumour Research Centre, The Hospital for Sick Children, Toronto, ON, Canada
| | - Dong-Yu Wang
- Toronto General Research Institute - University Health Network, 101 College Street, Max Bell Research Centre, suite 5R406, Toronto, ON, M5G 1L7, Canada
| | - Mariusz Shrestha
- Toronto General Research Institute - University Health Network, 101 College Street, Max Bell Research Centre, suite 5R406, Toronto, ON, M5G 1L7, Canada
- Laboratory Medicine & Pathobiology, University of Toronto, Toronto, ON, Canada
| | - Huiqin Li
- Toronto General Research Institute - University Health Network, 101 College Street, Max Bell Research Centre, suite 5R406, Toronto, ON, M5G 1L7, Canada
| | - Jeff C Liu
- The Donnelly Centre, University of Toronto, Toronto, ON, Canada
| | - Ioulia Vorobieva
- Toronto General Research Institute - University Health Network, 101 College Street, Max Bell Research Centre, suite 5R406, Toronto, ON, M5G 1L7, Canada
- Laboratory Medicine & Pathobiology, University of Toronto, Toronto, ON, Canada
| | - Ronak Ghanbari-Azarnier
- Toronto General Research Institute - University Health Network, 101 College Street, Max Bell Research Centre, suite 5R406, Toronto, ON, M5G 1L7, Canada
- Laboratory Medicine & Pathobiology, University of Toronto, Toronto, ON, Canada
| | - Ethel Mwewa
- Toronto General Research Institute - University Health Network, 101 College Street, Max Bell Research Centre, suite 5R406, Toronto, ON, M5G 1L7, Canada
| | | | - Yaacov Ben-David
- The Key laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academic of Sciences, Guiyang, Guizhou, 550014, China
- State Key Laboratory for Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, 550025, China
| | - James R Woodgett
- Lunenfeld-Tanenbaum Research Institute, Sinai Health System, 600 University Avenue, Toronto, ON, Canada
| | - Charles M Perou
- Lineberger Comprehensive Cancer Center, Departments of Genetics and Pathology, University of North Carolina, Chapel Hill, NC, 27599, USA
| | - Adam Dupuy
- Department of Pathology, Carver College of Medicine, The University of Iowa, Iowa City, Iowa, 52242, USA
| | - Gary D Bader
- The Donnelly Centre, University of Toronto, Toronto, ON, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, ON, Canada
| | - Sean E Egan
- Program in Developmental & Stem Cell Biology Program, The Hospital for Sick Children, Toronto, ON, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, ON, Canada
| | - Michael D Taylor
- Laboratory Medicine & Pathobiology, University of Toronto, Toronto, ON, Canada
- Program in Developmental & Stem Cell Biology Program, The Hospital for Sick Children, Toronto, ON, Canada
- The Arthur and Sonia Labatt Brain Tumour Research Centre, The Hospital for Sick Children, Toronto, ON, Canada
| | - Eldad Zacksenhaus
- Toronto General Research Institute - University Health Network, 101 College Street, Max Bell Research Centre, suite 5R406, Toronto, ON, M5G 1L7, Canada.
- Laboratory Medicine & Pathobiology, University of Toronto, Toronto, ON, Canada.
- Department of Medicine, University of Toronto, Toronto, ON, Canada.
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11
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Tang YJ, Shuldiner EG, Karmakar S, Winslow MM. High-Throughput Identification, Modeling, and Analysis of Cancer Driver Genes In Vivo. Cold Spring Harb Perspect Med 2023; 13:a041382. [PMID: 37277208 PMCID: PMC10317066 DOI: 10.1101/cshperspect.a041382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The vast number of genomic and molecular alterations in cancer pose a substantial challenge to uncovering the mechanisms of tumorigenesis and identifying therapeutic targets. High-throughput functional genomic methods in genetically engineered mouse models allow for rapid and systematic investigation of cancer driver genes. In this review, we discuss the basic concepts and tools for multiplexed investigation of functionally important cancer genes in vivo using autochthonous cancer models. Furthermore, we highlight emerging technical advances in the field, potential opportunities for future investigation, and outline a vision for integrating multiplexed genetic perturbations with detailed molecular analyses to advance our understanding of the genetic and molecular basis of cancer.
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Affiliation(s)
- Yuning J Tang
- Department of Genetics, Stanford University School of Medicine, Stanford, California 94305, USA
| | - Emily G Shuldiner
- Department of Biology, Stanford University, Stanford, California 94305, USA
| | - Saswati Karmakar
- Department of Genetics, Stanford University School of Medicine, Stanford, California 94305, USA
| | - Monte M Winslow
- Department of Genetics, Stanford University School of Medicine, Stanford, California 94305, USA
- Department of Pathology, Stanford University School of Medicine, Stanford, California 94305, USA
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12
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Sun J, Yu L, Qu X, Huang T. The role of peroxisome proliferator-activated receptors in the tumor microenvironment, tumor cell metabolism, and anticancer therapy. Front Pharmacol 2023; 14:1184794. [PMID: 37251321 PMCID: PMC10213337 DOI: 10.3389/fphar.2023.1184794] [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: 03/12/2023] [Accepted: 05/05/2023] [Indexed: 05/31/2023] Open
Abstract
Peroxisome proliferator-activated receptors (PPARs) have been extensively studied for over 3 decades and consist of three isotypes, including PPARα, γ, and β/δ, that were originally considered key metabolic regulators controlling energy homeostasis in the body. Cancer has become a leading cause of human mortality worldwide, and the role of peroxisome proliferator-activated receptors in cancer is increasingly being investigated, especially the deep molecular mechanisms and effective cancer therapies. Peroxisome proliferator-activated receptors are an important class of lipid sensors and are involved in the regulation of multiple metabolic pathways and cell fate. They can regulate cancer progression in different tissues by activating endogenous or synthetic compounds. This review emphasizes the significance and knowledge of peroxisome proliferator-activated receptors in the tumor microenvironment, tumor cell metabolism, and anti-cancer treatment by summarizing recent research on peroxisome proliferator-activated receptors. In general, peroxisome proliferator-activated receptors either promote or suppress cancer in different types of tumor microenvironments. The emergence of this difference depends on various factors, including peroxisome proliferator-activated receptor type, cancer type, and tumor stage. Simultaneously, the effect of anti-cancer therapy based on drug-targeted PPARs differs or even opposes among the three peroxisome proliferator-activated receptor homotypes and different cancer types. Therefore, the current status and challenges of the use of peroxisome proliferator-activated receptors agonists and antagonists in cancer treatment are further explored in this review.
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Affiliation(s)
- Jiaao Sun
- Department of Urology, First Affiliated Hospital, Dalian Medical University, Dalian, China
| | - Liyan Yu
- Department of Respiratory and Critical Care Medicine, First Affiliated Hospital, Dalian Medical University, Dalian, Liaoning, China
| | - Xueling Qu
- Dalian Women and Children’s Medical Center(Group), Dalian, Liaoning, China
| | - Tao Huang
- Department of Urology, First Affiliated Hospital, Dalian Medical University, Dalian, China
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13
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Jia X, Qian J, Chen H, Liu Q, Hussain S, Jin J, Shi J, Hou Y. PPARγ agonist pioglitazone enhances colorectal cancer immunotherapy by inducing PD-L1 autophagic degradation. Eur J Pharmacol 2023; 950:175749. [PMID: 37105516 DOI: 10.1016/j.ejphar.2023.175749] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Revised: 04/25/2023] [Accepted: 04/25/2023] [Indexed: 04/29/2023]
Abstract
Blockade of PD-1/PD-L1 immune checkpoint could be an effective antitumor strategy for multiple types of cancer, but it is low response rate for colorectal cancer patients with unclear mechanism. Here we found that PPARγ agonist pioglitazone could reduce PD-L1 protein levels without effect on its gene expression. Further analysis showed that pioglitazone induced PD-L1 autophagic degradation in a PPARγ-dependent manner. Pioglitazone promoted PD-L1 translocation to lysosome by immunofluorescence analysis, which was associated with the increased binding of PPARγ to PD-L1. Moreover the combined pioglitazone with PD-1 antibody enhanced colorectal tumor immunotherapy, which was involved in reduced PD-L1 levels and increased CD8+ T cells. These findings suggest that PPARγ agonist could induce PD-L1 autophagic degradation resulting in increased colorectal tumor immunotherapy.
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Affiliation(s)
- Xiao Jia
- Department of Oncology, The Affiliated Wujin Hospital, Jiangsu University, Changzhou, Jiangsu Province, 213017, PR China; School of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu Province, 212013, PR China
| | - Jin Qian
- School of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu Province, 212013, PR China
| | - Huiqing Chen
- School of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu Province, 212013, PR China
| | - Qian Liu
- Department of Oncology, The Affiliated Wujin Hospital, Jiangsu University, Changzhou, Jiangsu Province, 213017, PR China; Department of Oncology, Wujin Clinical College of Xuzhou Medical University, Changzhou, Jiangsu Province, PR China
| | - Shakeel Hussain
- School of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu Province, 212013, PR China
| | - Jianhua Jin
- Department of Oncology, The Affiliated Wujin Hospital, Jiangsu University, Changzhou, Jiangsu Province, 213017, PR China; Department of Oncology, Wujin Clinical College of Xuzhou Medical University, Changzhou, Jiangsu Province, PR China
| | - Juanjuan Shi
- School of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu Province, 212013, PR China
| | - Yongzhong Hou
- Department of Oncology, The Affiliated Wujin Hospital, Jiangsu University, Changzhou, Jiangsu Province, 213017, PR China; School of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu Province, 212013, PR China.
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14
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Gou Q, Che S, Chen M, Chen H, Shi J, Hou Y. PPARγ inhibited tumor immune escape by inducing PD-L1 autophagic degradation. Cancer Sci 2023. [PMID: 37096255 DOI: 10.1111/cas.15818] [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: 01/16/2023] [Revised: 04/01/2023] [Accepted: 04/05/2023] [Indexed: 04/26/2023] Open
Abstract
Blockade of the programmed death 1 (PD-1)/ programmed death ligand 1 (PD-L1) immune checkpoint could increase antitumor immunotherapy for multiple types of cancer, but the response rate of patients is about 10%-40%. Peroxisome proliferator activated receptor γ (PPARγ) plays an important role in regulating cell metabolism, inflammation, immunity, and cancer progression, while the mechanism of PPARγ on cancer cell immune escape is still unclear. Here we found that PPARγ expression exhibits a positive correlation with activation of T cells in non-small-cell lung cancer (NSCLC) by clinical analysis. Deficiency of PPARγ promoted immune escape of NSCLC by inhibiting T-cell activity, which was associated with increased PD-L1 protein level. Further analysis showed that PPARγ reduced PD-L1 expression independent of its transcriptional activity. PPARγ contains the microtubule-associated protein 1A/1B-light chain 3 (LC3) interacting region motif, which acts as an autophagy receptor for PPARγ binding to LC3, leading to degradation of PD-L1 in lysosomes, which in turn suppresses NSCLC tumor growth by increasing T-cell activity. These findings suggest that PPARγ inhibits the tumor immune escape of NSCLC by inducing PD-L1 autophagic degradation.
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Affiliation(s)
- Qian Gou
- School of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu Province, China
- School of Medicine, Jiangsu University, Zhenjiang, Jiangsu Province, China
| | - Suning Che
- School of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu Province, China
| | - Mingjun Chen
- School of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu Province, China
| | - Huiqing Chen
- School of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu Province, China
| | - Juanjuan Shi
- School of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu Province, China
| | - Yongzhong Hou
- School of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu Province, China
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15
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Hartley A, Ahmad I. The role of PPARγ in prostate cancer development and progression. Br J Cancer 2023; 128:940-945. [PMID: 36510001 PMCID: PMC10006070 DOI: 10.1038/s41416-022-02096-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 11/16/2022] [Accepted: 11/28/2022] [Indexed: 12/14/2022] Open
Abstract
Advanced and metastatic prostate cancer is often incurable, but its dependency on certain molecular alterations may provide the basis for targeted therapies. A growing body of research has demonstrated that peroxisome proliferator-activated receptor gamma (PPARγ) is amplified as prostate cancer progresses. PPARγ has been shown to support prostate cancer growth through its roles in fatty acid synthesis, mitochondrial biogenesis, and co-operating with androgen receptor signalling. Interestingly, splice variants of PPARγ may have differing and contrasting roles. PPARγ itself is a highly druggable target, with agonists having been used for the past two decades in treating diabetes. However, side effects associated with these compounds have currently limited clinical use of these drugs in prostate cancer. Further understanding of PPARγ and novel techniques to target it, may provide therapies for advanced prostate cancer.
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Affiliation(s)
- Andrew Hartley
- School of Cancer Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, G61 1QH, UK
- CRUK Beatson Institute, Garscube Estate, Switchback Road, Bearsden, Glasgow, G61 1BD, UK
| | - Imran Ahmad
- School of Cancer Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, G61 1QH, UK.
- CRUK Beatson Institute, Garscube Estate, Switchback Road, Bearsden, Glasgow, G61 1BD, UK.
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16
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Tibbo AJ, Hartley A, Vasan R, Shaw R, Galbraith L, Mui E, Leung HY, Ahmad I. MBTPS2 acts as a regulator of lipogenesis and cholesterol synthesis through SREBP signalling in prostate cancer. Br J Cancer 2023; 128:1991-1999. [PMID: 36991255 DOI: 10.1038/s41416-023-02237-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 03/10/2023] [Accepted: 03/14/2023] [Indexed: 03/31/2023] Open
Abstract
BACKGROUND Prostate cancer is the most common cancer in men in the developed world, with most deaths caused by advanced and metastatic disease which has no curative options. Here, we identified Mbtps2 alteration to be associated with metastatic disease in an unbiased in vivo screen and demonstrated its regulation of fatty acid and cholesterol metabolism. METHODS The Sleeping Beauty transposon system was used to randomly alter gene expression in the PtenNull murine prostate. MBTPS2 was knocked down by siRNA in LNCaP, DU145 and PC3 cell lines, which were then phenotypically investigated. RNA-Seq was performed on LNCaP cells lacking MBTPS2, and pathways validated by qPCR. Cholesterol metabolism was investigated by Filipin III staining. RESULTS Mbtps2 was identified in our transposon-mediated in vivo screen to be associated with metastatic prostate cancer. Silencing of MBTPS2 expression in LNCaP, DU145 and PC3 human prostate cancer cells reduced proliferation and colony forming growth in vitro. Knockdown of MBTPS2 expression in LNCaP cells impaired cholesterol synthesis and uptake along with reduced expression of key regulators of fatty acid synthesis, namely FASN and ACACA. CONCLUSION MBTPS2 is implicated in progressive prostate cancer and may mechanistically involve its effects on fatty acid and cholesterol metabolism.
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Affiliation(s)
- Amy J Tibbo
- School of Cancer Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, G61 1QH, UK
- CRUK Beatson Institute, Garscube Estate, Switchback Road, Bearsden, Glasgow, G61 1BD, UK
| | - Andrew Hartley
- School of Cancer Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, G61 1QH, UK
- CRUK Beatson Institute, Garscube Estate, Switchback Road, Bearsden, Glasgow, G61 1BD, UK
| | - Richa Vasan
- School of Cancer Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, G61 1QH, UK
- CRUK Beatson Institute, Garscube Estate, Switchback Road, Bearsden, Glasgow, G61 1BD, UK
| | - Robin Shaw
- CRUK Beatson Institute, Garscube Estate, Switchback Road, Bearsden, Glasgow, G61 1BD, UK
| | - Laura Galbraith
- CRUK Beatson Institute, Garscube Estate, Switchback Road, Bearsden, Glasgow, G61 1BD, UK
| | - Ernest Mui
- CRUK Beatson Institute, Garscube Estate, Switchback Road, Bearsden, Glasgow, G61 1BD, UK
| | - Hing Y Leung
- School of Cancer Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, G61 1QH, UK
- CRUK Beatson Institute, Garscube Estate, Switchback Road, Bearsden, Glasgow, G61 1BD, UK
| | - Imran Ahmad
- School of Cancer Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, G61 1QH, UK.
- CRUK Beatson Institute, Garscube Estate, Switchback Road, Bearsden, Glasgow, G61 1BD, UK.
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17
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Ebrahimi N, Fardi E, Ghaderi H, Palizdar S, Khorram R, Vafadar R, Ghanaatian M, Rezaei-Tazangi F, Baziyar P, Ahmadi A, Hamblin MR, Aref AR. Receptor tyrosine kinase inhibitors in cancer. Cell Mol Life Sci 2023; 80:104. [PMID: 36947256 PMCID: PMC11073124 DOI: 10.1007/s00018-023-04729-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 01/31/2023] [Accepted: 02/13/2023] [Indexed: 03/23/2023]
Abstract
Targeted therapy is a new cancer treatment approach, involving drugs that particularly target specific proteins in cancer cells, such as receptor tyrosine kinases (RTKs) which are involved in promoting growth and proliferation, Therefore inhibiting these proteins could impede cancer progression. An understanding of RTKs and the relevant signaling cascades, has enabled the development of many targeted drug therapies employing RTK inhibitors (RTKIs) some of which have entered clinical application. Here we discuss RTK structures, activation mechanisms and functions. Moreover, we cover the potential effects of combination drug therapy (including chemotherapy or immunotherapy agents with one RTKI or multiple RTKIs) especially for drug resistant cancers.
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Affiliation(s)
- Nasim Ebrahimi
- Genetics Division, Department of Cell and Molecular Biology and Microbiology, Faculty of Science and Technology, University of Isfahan, Isfahan, Iran
| | - Elmira Fardi
- Medical Branch, Islamic Azad University of Tehran, Tehran, Iran
| | - Hajarossadat Ghaderi
- Laboratory of Regenerative and Medical Innovation, Pasteur Institute of Iran, Tehran, Iran
| | - Sahar Palizdar
- Division of Microbiology, Faculty of Basic Sciences, Islamic Azad University of Tehran East Branch, Tehran, Iran
| | - Roya Khorram
- Bone and Joint Diseases Research Center, Department of Orthopedic Surgery, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Reza Vafadar
- Department of Orthopeadic Surgery, Kerman University of Medical Sciences, Kerman, Iran
| | - Masoud Ghanaatian
- Master 1 Bio-Santé-Parcours Toulouse Graduate School of Cancer, Ageing and Rejuvenation (CARe), Université Toulouse III-Paul Sabatier, Toulouse, France
| | - Fatemeh Rezaei-Tazangi
- Department of Anatomy, School of Medicine, Fasa University of Medical Sciences, Fasa, Iran
| | - Payam Baziyar
- Department of Molecular and Cell Biology, Faculty of Basic Science, Uinversity of Mazandaran, Babolsar, Iran
| | - Amirhossein Ahmadi
- Department of Biological Science and Technology, Faculty of Nano and Bio Science and Technology, Persian Gulf University, Bushehr, 75169, Iran.
| | - Michael R Hamblin
- Laser Research Centre, Faculty of Health Science, University of Johannesburg, Doornfontein, 2028, South Africa.
| | - Amir Reza Aref
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, 02115, USA.
- Translational Medicine Group, Xsphera Biosciences, 6 Tide Street, Boston, MA, 02210, USA.
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18
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Arner EN, Rathmell JC. Metabolic programming and immune suppression in the tumor microenvironment. Cancer Cell 2023; 41:421-433. [PMID: 36801000 PMCID: PMC10023409 DOI: 10.1016/j.ccell.2023.01.009] [Citation(s) in RCA: 85] [Impact Index Per Article: 85.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 01/23/2023] [Accepted: 01/25/2023] [Indexed: 02/18/2023]
Abstract
Increased glucose metabolism and uptake are characteristic of many tumors and used clinically to diagnose and monitor cancer progression. In addition to cancer cells, the tumor microenvironment (TME) encompasses a wide range of stromal, innate, and adaptive immune cells. Cooperation and competition between these cell populations supports tumor proliferation, progression, metastasis, and immune evasion. Cellular heterogeneity leads to metabolic heterogeneity because metabolic programs within the tumor are dependent not only on the TME cellular composition but also on cell states, location, and nutrient availability. In addition to driving metabolic plasticity of cancer cells, altered nutrients and signals in the TME can lead to metabolic immune suppression of effector cells and promote regulatory immune cells. Here we discuss how metabolic programming of cells within the TME promotes tumor proliferation, progression, and metastasis. We also discuss how targeting metabolic heterogeneity may offer therapeutic opportunities to overcome immune suppression and augment immunotherapies.
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Affiliation(s)
- Emily N Arner
- Department of Medicine, Vanderbilt University Medical Center (VUMC), Nashville, TN, USA
| | - Jeffrey C Rathmell
- Vanderbilt Center for Immunobiology, Vanderbilt University Medical Center (VUMC), Nashville, TN, USA; Vanderbilt-Ingram Cancer Center, Vanderbilt University Medical Center (VUMC), Nashville, TN, USA; Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center (VUMC), Nashville, TN, USA.
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19
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Yang H, Zhang K, Guo Y, Guo X, Hou K, Hou J, Luo Y, Liu J, Jia S. Gain-of-Function p53N236S Mutation Drives the Bypassing of HRas V12-Induced Cellular Senescence via PGC-1α. Int J Mol Sci 2023; 24:ijms24043790. [PMID: 36835200 PMCID: PMC9960896 DOI: 10.3390/ijms24043790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 02/07/2023] [Accepted: 02/08/2023] [Indexed: 02/16/2023] Open
Abstract
One of the key steps in tumorigenic transformation is immortalization in which cells bypass cancer-initiating barriers such as senescence. Senescence can be triggered by either telomere erosion or oncogenic stress (oncogene-induced senescence, OIS) and undergo p53- or Rb-dependent cell cycle arrest. The tumor suppressor p53 is mutated in 50% of human cancers. In this study, we generated p53N236S (p53S) mutant knock-in mice and observed that p53S heterozygous mouse embryonic fibroblasts (p53S/+) escaped HRasV12-induced senescence after subculture in vitro and formed tumors after subcutaneous injection into severe combined immune deficiency (SCID) mice. We found that p53S increased the level and nuclear translocation of PGC-1α in late-stage p53S/++Ras cells (LS cells, which bypassed the OIS). The increase in PGC-1α promoted the biosynthesis and function of mitochondria in LS cells by inhibiting senescence-associated reactive oxygen species (ROS) and ROS-induced autophagy. In addition, p53S regulated the interaction between PGC-1α and PPARγ and promoted lipid synthesis, which may indicate an auxiliary pathway for facilitating cell escape from aging. Our results illuminate the mechanisms underlying p53S mutant-regulated senescence bypass and demonstrate the role played by PGC-1α in this process.
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20
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Zhang J, He G, Jin X, Alenezi BT, Naeem AA, Abdulsamad SA, Ke Y. Molecular mechanisms on how FABP5 inhibitors promote apoptosis-induction sensitivity of prostate cancer cells. Cell Biol Int 2023; 47:929-942. [PMID: 36651331 DOI: 10.1002/cbin.11989] [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: 10/12/2022] [Revised: 11/18/2022] [Accepted: 01/02/2023] [Indexed: 01/19/2023]
Abstract
Previous work showed that FABP5 inhibitors suppressed the malignant progression of prostate cancer cells, and this suppression might be achieved partially by promoting apoptosis. But the mechanisms involved were not known. Here, we investigated the effect of inhibitors on apoptosis and studied the relevant mechanisms. WtrFABP5 significantly reduced apoptotic cells in 22Rv1 and PC3 by 18% and 42%, respectively. In contrast, the chemical inhibitor SB-FI-26 produced significant increases in percentages of apoptotic cells in 22Rv1 and PC3 by 18.8% (±4.1) and 4.6% (±1.1), respectively. The bio- inhibitor dmrFABP5 also did so by 23.1% (±2.4) and 15.8% (±3.0), respectively, in these cell lines. Both FABP5 inhibitors significantly reduced the levels of the phosphorylated nuclear fatty acid receptor PPARγ, indicating that these inhibitors promoted apoptosis-induction sensitivity of the cancer cells by suppressing the biological activity of PPARγ. Thus, the phosphorylated PPARγ levels were reduced by FABP5 inhibitors, the levels of the phosphorylated AKT and activated nuclear factor kapper B (NFκB) were coordinately altered by additions of the inhibitors. These changes eventually led to the increased levels of cleaved caspase-9 and cleaved caspase-3; and thus, increase in the percentage of cells undergoing apoptosis. In untreated prostate cancer cells, increased FABP5 suppressed the apoptosis by increasing the biological activity of PPARγ, which, in turn, led to a reduced apoptosis by interfering with the AKT or NFκB signaling pathway. Our results suggested that the FABP5 inhibitors enhanced the apoptosis-induction of prostate cancer cells by reversing the biological effect of FABP5 and its related pathway.
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Affiliation(s)
- Jiacheng Zhang
- Department of Molecular and Clinical Cancer Medicine, Liverpool University, Liverpool, UK
| | - Gang He
- Sichuan Industrial Institute of Antibiotics, Chengdu University, Chengdu, Sichuan, China
| | - Xi Jin
- Institute of Urology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Bandar T Alenezi
- Department of Molecular and Clinical Cancer Medicine, Liverpool University, Liverpool, UK
| | - Abdulghani A Naeem
- Department of Molecular and Clinical Cancer Medicine, Liverpool University, Liverpool, UK
| | - Saud A Abdulsamad
- Department of Molecular and Clinical Cancer Medicine, Liverpool University, Liverpool, UK
| | - Youqiang Ke
- Department of Molecular and Clinical Cancer Medicine, Liverpool University, Liverpool, UK.,Sichuan Industrial Institute of Antibiotics, Chengdu University, Chengdu, Sichuan, China.,Institute of Urology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
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21
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Molecular Modeling of Allosteric Site of Isoform-Specific Inhibition of the Peroxisome Proliferator-Activated Receptor PPARγ. Biomolecules 2022; 12:biom12111614. [DOI: 10.3390/biom12111614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 10/25/2022] [Accepted: 10/28/2022] [Indexed: 11/06/2022] Open
Abstract
The peroxisome proliferator-activated receptor gamma (PPARγ) is a nuclear receptor and controls a number of gene expressions. The ligand binding domain (LBD) of PPARγ is large and involves two binding sites: orthosteric and allosteric binding sites. Increased evidence has shown that PPARγ is an oncogene and thus the PPARγ antagonists have potential as anticancer agents. In this paper, we use Glide Dock approach to determine which binding site, orthosteric or allosteric, would be a preferred pocket for PPARγ antagonist binding, though antidiabetic drugs such as thiazolidinediones (TZDs) bind to the orthosteric site. The Glide Dock results show that the binding of PPARγ antagonists at the allosteric site yielded results that were much closer to the experimental data than at the orthosteric site. The PPARγ antagonists seem to selectively bind to residues Lys265, Ser342 and Arg288 at the allosteric binding site, whereas PPARγ agonists would selectively bind to residues Leu228, Phe363, and His449, though Phe282 and Lys367 may also play a role for agonist binding at the orthosteric binding pocket. This finding will provide new perspectives in the design and optimization of selective and potent PPARγ antagonists or agonists.
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22
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Olokpa E, Mandape SN, Pratap S, Stewart LMV. Metformin regulates multiple signaling pathways within castration-resistant human prostate cancer cells. BMC Cancer 2022; 22:1025. [PMID: 36175875 PMCID: PMC9520831 DOI: 10.1186/s12885-022-10115-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 09/19/2022] [Indexed: 11/25/2022] Open
Abstract
Background The biguanide metformin has been shown to not only reduce circulating glucose levels but also suppress in vitro and in vivo growth of prostate cancer. However, the mechanisms underlying the anti-tumor effects of metformin in advanced prostate cancers are not fully understood. The goal of the present study was to define the signaling pathways regulated by metformin in androgen-receptor (AR) positive, castration-resistant prostate cancers. Methods Our group used RNA sequencing (RNA-seq) to examine genes regulated by metformin within the C4–2 human prostate cancer cell line. Western blot analysis and quantitative RT-PCR were used to confirm alterations in gene expression and further explore regulation of protein expression by metformin. Results Data from the RNA-seq analysis revealed that metformin alters the expression of genes products involved in metabolic pathways, the spliceosome, RNA transport, and protein processing within the endoplasmic reticulum. Gene products involved in ErbB, insulin, mTOR, TGF-β, MAPK, and Wnt signaling pathways are also regulated by metformin. A subset of metformin-regulated gene products were genes known to be direct transcriptional targets of p53 or AR. Western blot analyses and quantitative RT-PCR indicated these alterations in gene expression are due in part to metformin-induced reductions in AR mRNA and protein levels. Conclusions Together, our results suggest metformin regulates multiple pathways linked to tumor growth and progression within advanced prostate cancer cells. Supplementary Information The online version contains supplementary material available at 10.1186/s12885-022-10115-3.
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Affiliation(s)
- Emuejevoke Olokpa
- Department of Biochemistry, Cancer Biology, Neuroscience and Pharmacology, Meharry Medical College, 1005 Dr. D.B. Todd Jr. Blvd., Nashville, TN, 37208, USA
| | - Sammed N Mandape
- School of Graduate Studies and Research, Bioinformatics Core, Meharry Medical College, 1005 Dr. D, B. Todd Jr. Blvd., Nashville, TN, 37208, USA
| | - Siddharth Pratap
- School of Graduate Studies and Research, Bioinformatics Core, Meharry Medical College, 1005 Dr. D, B. Todd Jr. Blvd., Nashville, TN, 37208, USA
| | - La Monica V Stewart
- Department of Biochemistry, Cancer Biology, Neuroscience and Pharmacology, Meharry Medical College, 1005 Dr. D.B. Todd Jr. Blvd., Nashville, TN, 37208, USA.
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23
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Liu S, Shi J, Wang L, Huang Y, Zhao B, Ding H, Liu Y, Wang W, Chen Z, Yang J. Loss of EMP1 promotes the metastasis of human bladder cancer cells by promoting migration and conferring resistance to ferroptosis through activation of PPAR gamma signaling. Free Radic Biol Med 2022; 189:42-57. [PMID: 35850179 DOI: 10.1016/j.freeradbiomed.2022.06.247] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Revised: 06/25/2022] [Accepted: 06/30/2022] [Indexed: 12/21/2022]
Abstract
Metastasis, in which cancer cells detach from the original site and colonise other organs, is the primary cause of death induced by bladder cancer (BCa). Epithelial Membrane Protein 1 (EMP1) is dysregulated in many human cancers, and its clinical significance and biological function in diseases, including BCa, are largely unclear. Here, we demonstrated that EMP1 was downregulated in BCa cells. The deficiency of EMP1 promotes migration and confers resistance to ferroptosis/oxidative stress in BCa cells, favouring tumour cell metastasis. Mechanistically, we demonstrated that EMP1 deficiency enhanced tumour metastasis by increasing PPARG expression and promoting its activation, leading to upregulation of pFAK(Y397) and SLC7A11, which promoted cell migration and anti-ferroptotic cell death respectively. Moreover, we found EMP1-deficient sensitized cells to PPARG's ligand, which effect are metastatic phenotype promoted and could be mitigated by FABP4 knockdown. In conclusion, our study, for the first time, reveals that EMP1 deficiency promotes BCa cell migration and confers resistance to ferroptosis/oxidative stress, thus promoting metastasis of BCa via PPARG. These results revealed a novel role of EMP1-mediated PPARG in bladder cancer metastasis.
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Affiliation(s)
- Sha Liu
- Department of Cell Biology, Third Military Medical University, Chongqing, China.
| | - Jiazhong Shi
- Department of Cell Biology, Third Military Medical University, Chongqing, China.
| | - Liwei Wang
- Department of Urology, The First Affiliated Hospital of the Third Military Medical University, Chongqing, China.
| | - Yaqin Huang
- Department of Cell Biology, Third Military Medical University, Chongqing, China.
| | - Baixiong Zhao
- Department of Urology, The First Affiliated Hospital of the Third Military Medical University, Chongqing, China.
| | - Hua Ding
- Department of Urology, The First Affiliated Hospital of the Third Military Medical University, Chongqing, China.
| | - Yuting Liu
- Department of Urology, The First Affiliated Hospital of the Third Military Medical University, Chongqing, China.
| | - Wuxing Wang
- Department of Cell Biology, Third Military Medical University, Chongqing, China.
| | - Zhiwen Chen
- Department of Urology, The First Affiliated Hospital of the Third Military Medical University, Chongqing, China.
| | - Jin Yang
- Department of Cell Biology, Third Military Medical University, Chongqing, China.
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24
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Wagner N, Wagner KD. Peroxisome Proliferator-Activated Receptors and the Hallmarks of Cancer. Cells 2022; 11:cells11152432. [PMID: 35954274 PMCID: PMC9368267 DOI: 10.3390/cells11152432] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 08/02/2022] [Accepted: 08/04/2022] [Indexed: 12/11/2022] Open
Abstract
Peroxisome proliferator-activated receptors (PPARs) function as nuclear transcription factors upon the binding of physiological or pharmacological ligands and heterodimerization with retinoic X receptors. Physiological ligands include fatty acids and fatty-acid-derived compounds with low specificity for the different PPAR subtypes (alpha, beta/delta, and gamma). For each of the PPAR subtypes, specific pharmacological agonists and antagonists, as well as pan-agonists, are available. In agreement with their natural ligands, PPARs are mainly focused on as targets for the treatment of metabolic syndrome and its associated complications. Nevertheless, many publications are available that implicate PPARs in malignancies. In several instances, they are controversial for very similar models. Thus, to better predict the potential use of PPAR modulators for personalized medicine in therapies against malignancies, it seems necessary and timely to review the three PPARs in relation to the didactic concept of cancer hallmark capabilities. We previously described the functions of PPAR beta/delta with respect to the cancer hallmarks and reviewed the implications of all PPARs in angiogenesis. Thus, the current review updates our knowledge on PPAR beta and the hallmarks of cancer and extends the concept to PPAR alpha and PPAR gamma.
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Affiliation(s)
- Nicole Wagner
- Correspondence: (N.W.); (K.-D.W.); Tel.: +33-489-153-713 (K.-D.W.)
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25
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Tang X, Li R, Wu D, Wang Y, Zhao F, Lv R, Wen X. Development and Validation of an ADME-Related Gene Signature for Survival, Treatment Outcome and Immune Cell Infiltration in Head and Neck Squamous Cell Carcinoma. Front Immunol 2022; 13:905635. [PMID: 35874705 PMCID: PMC9304892 DOI: 10.3389/fimmu.2022.905635] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2022] [Accepted: 06/13/2022] [Indexed: 12/24/2022] Open
Abstract
ADME genes are a set of genes which are involved in drug absorption, distribution, metabolism, and excretion (ADME). However, prognostic value and function of ADME genes in head and neck squamous cell carcinoma (HNSCC) remain largely unclear. In this study, we established an ADME-related prognostic model through the least absolute shrinkage and selection operator (LASSO) analysis in the Cancer Genome Atla (TCGA) training cohort and its robustness was validated by TCGA internal validation cohort and a Gene Expression Omnibus (GEO) external cohort. The 14-gene signature stratified patients into high- or low-risk groups. Patients with high-risk scores exhibited significantly poorer overall survival (OS) and disease-free survival (DFS) than those with low-risk scores. Receiver operating characteristic (ROC) curve analysis was used to confirm the signature’s predictive efficacy for OS and DFS. Furthermore, gene ontology (GO) and Kyoto Encyclopaedia of Genes and Genomes (KEGG) pathway analyses showed that immune-related functions and pathways were enriched, such as lymphocyte activation, leukocyte cell-cell adhesion and T-helper cell differentiation. The Cell-type Identification by Estimating Relative Subsets of RNA Transcripts (CIBERSORT) and other analyses revealed that immune cell (especially B cell and T cell) infiltration levels were significantly higher in the low-risk group. Moreover, patients with low-risk scores were significantly associated with immunotherapy and chemotherapy treatment benefit. In conclusion, we constructed a novel ADME-related prognostic and therapeutic biomarker associated with immune cell infiltration of HNSCC patients.
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Affiliation(s)
- Xinran Tang
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Rui Li
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Dehua Wu
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yikai Wang
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Fang Zhao
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Ruxue Lv
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Xin Wen
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, China
- The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- *Correspondence: Xin Wen,
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26
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Xu B, Chen L, Zhan Y, Marquez KNS, Zhuo L, Qi S, Zhu J, He Y, Chen X, Zhang H, Shen Y, Chen G, Gu J, Guo Y, Liu S, Xie T. The Biological Functions and Regulatory Mechanisms of Fatty Acid Binding Protein 5 in Various Diseases. Front Cell Dev Biol 2022; 10:857919. [PMID: 35445019 PMCID: PMC9013884 DOI: 10.3389/fcell.2022.857919] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Accepted: 02/28/2022] [Indexed: 12/11/2022] Open
Abstract
In recent years, fatty acid binding protein 5 (FABP5), also known as fatty acid transporter, has been widely researched with the help of modern genetic technology. Emerging evidence suggests its critical role in regulating lipid transport, homeostasis, and metabolism. Its involvement in the pathogenesis of various diseases such as metabolic syndrome, skin diseases, cancer, and neurological diseases is the key to understanding the true nature of the protein. This makes FABP5 be a promising component for numerous clinical applications. This review has summarized the most recent advances in the research of FABP5 in modulating cellular processes, providing an in-depth analysis of the protein’s biological properties, biological functions, and mechanisms involved in various diseases. In addition, we have discussed the possibility of using FABP5 as a new diagnostic biomarker and therapeutic target for human diseases, shedding light on challenges facing future research.
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Affiliation(s)
- Binyue Xu
- Department of Oncology, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - Lu Chen
- School of Pharmacy, Hangzhou Normal University, Hangzhou, China
- Key Laboratory of Elemene Class Anti-Cancer Chinese Medicines, Engineering Laboratory of Development and Application of Traditional Chinese Medicines, Collaborative Innovation Center of Traditional Chinese Medicines of Zhejiang Province, Hangzhou Normal University, Hangzhou, China
| | - Yu Zhan
- Department of Oncology, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - Karl Nelson S. Marquez
- Clinical Medicine, Tongji Medical College, Huazhong University of Science and Technology, Hankou, China
| | - Lvjia Zhuo
- School of Pharmacy, Hangzhou Normal University, Hangzhou, China
- Key Laboratory of Elemene Class Anti-Cancer Chinese Medicines, Engineering Laboratory of Development and Application of Traditional Chinese Medicines, Collaborative Innovation Center of Traditional Chinese Medicines of Zhejiang Province, Hangzhou Normal University, Hangzhou, China
| | - Shasha Qi
- School of Pharmacy, Hangzhou Normal University, Hangzhou, China
- Key Laboratory of Elemene Class Anti-Cancer Chinese Medicines, Engineering Laboratory of Development and Application of Traditional Chinese Medicines, Collaborative Innovation Center of Traditional Chinese Medicines of Zhejiang Province, Hangzhou Normal University, Hangzhou, China
| | - Jinyu Zhu
- School of Pharmacy, Hangzhou Normal University, Hangzhou, China
- Key Laboratory of Elemene Class Anti-Cancer Chinese Medicines, Engineering Laboratory of Development and Application of Traditional Chinese Medicines, Collaborative Innovation Center of Traditional Chinese Medicines of Zhejiang Province, Hangzhou Normal University, Hangzhou, China
| | - Ying He
- School of Pharmacy, Hangzhou Normal University, Hangzhou, China
- Key Laboratory of Elemene Class Anti-Cancer Chinese Medicines, Engineering Laboratory of Development and Application of Traditional Chinese Medicines, Collaborative Innovation Center of Traditional Chinese Medicines of Zhejiang Province, Hangzhou Normal University, Hangzhou, China
| | - Xudong Chen
- School of Pharmacy, Hangzhou Normal University, Hangzhou, China
- Key Laboratory of Elemene Class Anti-Cancer Chinese Medicines, Engineering Laboratory of Development and Application of Traditional Chinese Medicines, Collaborative Innovation Center of Traditional Chinese Medicines of Zhejiang Province, Hangzhou Normal University, Hangzhou, China
| | - Hao Zhang
- School of Pharmacy, Hangzhou Normal University, Hangzhou, China
- Key Laboratory of Elemene Class Anti-Cancer Chinese Medicines, Engineering Laboratory of Development and Application of Traditional Chinese Medicines, Collaborative Innovation Center of Traditional Chinese Medicines of Zhejiang Province, Hangzhou Normal University, Hangzhou, China
| | - Yingying Shen
- Department of Oncology, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - Gongxing Chen
- School of Pharmacy, Hangzhou Normal University, Hangzhou, China
- Key Laboratory of Elemene Class Anti-Cancer Chinese Medicines, Engineering Laboratory of Development and Application of Traditional Chinese Medicines, Collaborative Innovation Center of Traditional Chinese Medicines of Zhejiang Province, Hangzhou Normal University, Hangzhou, China
| | - Jianzhong Gu
- Department of Oncology, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - Yong Guo
- Department of Oncology, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
- *Correspondence: Yong Guo, ; Shuiping Liu, ; Tian Xie,
| | - Shuiping Liu
- School of Pharmacy, Hangzhou Normal University, Hangzhou, China
- Key Laboratory of Elemene Class Anti-Cancer Chinese Medicines, Engineering Laboratory of Development and Application of Traditional Chinese Medicines, Collaborative Innovation Center of Traditional Chinese Medicines of Zhejiang Province, Hangzhou Normal University, Hangzhou, China
- *Correspondence: Yong Guo, ; Shuiping Liu, ; Tian Xie,
| | - Tian Xie
- School of Pharmacy, Hangzhou Normal University, Hangzhou, China
- Key Laboratory of Elemene Class Anti-Cancer Chinese Medicines, Engineering Laboratory of Development and Application of Traditional Chinese Medicines, Collaborative Innovation Center of Traditional Chinese Medicines of Zhejiang Province, Hangzhou Normal University, Hangzhou, China
- *Correspondence: Yong Guo, ; Shuiping Liu, ; Tian Xie,
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27
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Zhang DG, Xu XJ, Pantopoulos K, Zhao T, Zheng H, Luo Z. HSF1-SELENOS pathway mediated dietary inorganic Se-induced lipogenesis via the up-regulation of PPARγ expression in yellow catfish. BIOCHIMICA ET BIOPHYSICA ACTA. GENE REGULATORY MECHANISMS 2022; 1865:194802. [PMID: 35248747 DOI: 10.1016/j.bbagrm.2022.194802] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Revised: 02/14/2022] [Accepted: 02/22/2022] [Indexed: 02/08/2023]
Abstract
At present, studies involved in the effects of dietary Se sources on lipid metabolism were very scarce and the underlying mechanism remains unknown. Previous studies reported that dietary Se sources differentially affected selenoprotein S (SELENOS) expression and SELENOS affected lipid metabolism via the inositol-requiring enzyme 1α (IRE1α)- spliced X-box binding protein 1 (XBP1s) pathway. Thus, we used yellow catfish as an experimental model to explore whether dietary selenium sources affected the hepatic lipid metabolism, and further determined the role of SELENOS-IRE1α-XBP1s pathway in dietary selenium sources affecting hepatic lipid metabolism. Compared with the selenomethionine (S-M) group, sodium selenite (SS) group possessed higher liver triglycerides (TGs) (34.7%), lipogenic enzyme activities (57.9-70.6%), and lower antioxidant enzyme activities (23.3-35.5%), increased protein levels of heat shock transcription factor 1 (HSF1) and SELENOS (1.17-fold and 47.4%, respectively), and XBP1s- peroxisome proliferators-activated receptor γ (PPARγ) pathway. Blocking SELENOS and PPARγ by RNA interference demonstrated that the SELENOS/XBP1s/PPARγ axis was critical for S-S-induced lipid accumulation. Moreover, S-S-induced upregulation of SELENOS was via the increased DNA binding capacity of HSF1 to SELENOS promoter, which activated the XBP1s/PPARγ pathway and promoted lipogenesis and lipid accumulation. XBP1s is required for S-S-induced upregulation of PPARγ expression. Our finding elucidated the mechanism of dietary Se sources affecting the lipid metabolism in the liver of yellow catfish and demonstrated novel function of SELENOS in metabolic regulation. Our study also suggested that seleno-methionine was a better Se source than selenite against abnormal lipid deposition in the liver of yellow catfish.
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Affiliation(s)
- Dian-Guang Zhang
- Hubei Hongshan Laboratory, Fishery College, Huazhong Agriculture University, Wuhan 430070, China
| | - Xiao-Jian Xu
- Hubei Hongshan Laboratory, Fishery College, Huazhong Agriculture University, Wuhan 430070, China
| | - Kostas Pantopoulos
- Lady Davis Institute for Medical Research, Department of Medicine, McGill University, Montreal H3T 1E2, Quebec, Canada
| | - Tao Zhao
- Hubei Hongshan Laboratory, Fishery College, Huazhong Agriculture University, Wuhan 430070, China
| | - Hua Zheng
- Hubei Hongshan Laboratory, Fishery College, Huazhong Agriculture University, Wuhan 430070, China
| | - Zhi Luo
- Hubei Hongshan Laboratory, Fishery College, Huazhong Agriculture University, Wuhan 430070, China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China.
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Jamal M, Bangash HI, Habiba M, Lei Y, Xie T, Sun J, Wei Z, Hong Z, Shao L, Zhang Q. Immune dysregulation and system pathology in COVID-19. Virulence 2021; 12:918-936. [PMID: 33757410 PMCID: PMC7993139 DOI: 10.1080/21505594.2021.1898790] [Citation(s) in RCA: 64] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 01/08/2021] [Accepted: 02/19/2021] [Indexed: 01/08/2023] Open
Abstract
The coronavirus disease 19 (COVID-19) caused by the novel coronavirus known as SARS-CoV-2 has caused a global public health crisis. As of 7 January 2021, 87,640,402 confirmed cases and 1,891,692 mortalities have been reported worldwide. Studies focusing on the epidemiological and clinical characteristics of COVID-19 patients have suggested a dysregulated immune response characterized by lymphopenia and cytokine storm in these patients. The exaggerated immune response induced by the cytokine storm causes septic shock, acute respiratory distress syndrome (ARDS), and/or multiple organs failure, which increases the fatality rate of patients with SARS-CoV-2 infection. Herein, we review the recent research progress on epidemiology, clinical features, and system pathology in COVID-19. Moreover, we summarized the recent therapeutic strategies, which are either approved, under clinical trial, and/or under investigation by the local or global health authorities. We assume that treatments should focus on the use of antiviral drugs in combination with immunomodulators as well as treatment of the underlying comorbidities.
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Affiliation(s)
- Muhammad Jamal
- Department of Immunology, School of Basic Medical Science, Wuhan University, WuhanP.R. China
| | - Hina Iqbal Bangash
- State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, WuhanChina
| | - Maria Habiba
- Department of Zoology, University of Malakand, Chakdara Dir Lower, Khyber PakhtunkhwaPakistan
| | - Yufei Lei
- Department of Immunology, School of Basic Medical Science, Wuhan University, WuhanP.R. China
| | - Tian Xie
- Department of Immunology, School of Basic Medical Science, Wuhan University, WuhanP.R. China
| | - Jiaxing Sun
- Department of Immunology, School of Basic Medical Science, Wuhan University, WuhanP.R. China
| | - Zimeng Wei
- Department of Immunology, School of Basic Medical Science, Wuhan University, WuhanP.R. China
| | - Zixi Hong
- Department of Immunology, School of Basic Medical Science, Wuhan University, WuhanP.R. China
| | - Liang Shao
- Department of Hematology, Zhongnan Hospital of Wuhan University, WuhanP.R. China
| | - Qiuping Zhang
- Department of Immunology, School of Basic Medical Science, Wuhan University, WuhanP.R. China
- Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan University, WuhanP.R. China
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29
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Virtual screening and biological evaluation of PPARγ antagonists as potential anti-prostate cancer agents. Bioorg Med Chem 2021; 46:116368. [PMID: 34433102 DOI: 10.1016/j.bmc.2021.116368] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 08/08/2021] [Accepted: 08/09/2021] [Indexed: 11/20/2022]
Abstract
The peroxisome proliferator-activated receptor gamma (PPARγ) was identified as an oncogene and it plays a key role in prostate cancer (PC) development and progression. PPARγ antagonists have been shown to inhibit PC cell growth. Herein, we describe a virtual screening-based approach that led to the discovery of novel PPARγ antagonist chemotypes that bind at the allosteric pocket. Arg288, Lys367, and His449 appear to be important for PPARγ antagonist binding.
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30
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Martinez RS, Salji MJ, Rushworth L, Ntala C, Rodriguez Blanco G, Hedley A, Clark W, Peixoto P, Hervouet E, Renaude E, Kung SHY, Galbraith LCA, Nixon C, Lilla S, MacKay GM, Fazli L, Gaughan L, Sumpton D, Gleave ME, Zanivan S, Blomme A, Leung HY. SLFN5 Regulates LAT1-Mediated mTOR Activation in Castration-Resistant Prostate Cancer. Cancer Res 2021; 81:3664-3678. [PMID: 33985973 DOI: 10.1158/0008-5472.can-20-3694] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 03/15/2021] [Accepted: 05/11/2021] [Indexed: 11/16/2022]
Abstract
Androgen deprivation therapy (ADT) is the standard of care for treatment of nonresectable prostate cancer. Despite high treatment efficiency, most patients ultimately develop lethal castration-resistant prostate cancer (CRPC). In this study, we performed a comparative proteomic analysis of three in vivo, androgen receptor (AR)-responsive orthograft models of matched hormone-naïve prostate cancer and CRPC. Differential proteomic analysis revealed that distinct molecular mechanisms, including amino acid (AA) and fatty acid metabolism, are involved in the response to ADT in the different models. Despite this heterogeneity, Schlafen family member 5 (SLFN5) was identified as an AR-regulated protein in CRPC. SLFN5 expression was high in CRPC tumors and correlated with poor patient outcome. In vivo, SLFN5 depletion strongly impaired tumor growth in castrated conditions. Mechanistically, SLFN5 interacted with ATF4 and regulated the expression of LAT1, an essential AA transporter. Consequently, SLFN5 depletion in CRPC cells decreased intracellular levels of essential AA and impaired mTORC1 signaling in a LAT1-dependent manner. These results confirm that these orthograft models recapitulate the high degree of heterogeneity observed in patients with CRPC and further highlight SLFN5 as a clinically relevant target for CRPC. SIGNIFICANCE: This study identifies SLFN5 as a novel regulator of the LAT1 amino acid transporter and an essential contributor to mTORC1 activity in castration-resistant prostate cancer.
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Affiliation(s)
- Rafael S Martinez
- CRUK Beatson Institute, Garscube Estate, Glasgow, United Kingdom
- Institute of Cancer Sciences, University of Glasgow, Garscube Estate, Glasgow, United Kingdom
| | - Mark J Salji
- CRUK Beatson Institute, Garscube Estate, Glasgow, United Kingdom
- Institute of Cancer Sciences, University of Glasgow, Garscube Estate, Glasgow, United Kingdom
| | - Linda Rushworth
- CRUK Beatson Institute, Garscube Estate, Glasgow, United Kingdom
- Institute of Cancer Sciences, University of Glasgow, Garscube Estate, Glasgow, United Kingdom
| | - Chara Ntala
- CRUK Beatson Institute, Garscube Estate, Glasgow, United Kingdom
- Institute of Cancer Sciences, University of Glasgow, Garscube Estate, Glasgow, United Kingdom
| | | | - Ann Hedley
- CRUK Beatson Institute, Garscube Estate, Glasgow, United Kingdom
| | - William Clark
- CRUK Beatson Institute, Garscube Estate, Glasgow, United Kingdom
| | - Paul Peixoto
- Univ. Bourgogne Franche-Comté, INSERM, EFS BFC, UMR1098, Interactions Hôte-Greffon-Tumeur/Ingénierie Cellulaire et Génique, Besançon, France
- EPIGENExp, (EPIgenetics and GENe EXPression Technical Platform), Besançon, France
| | - Eric Hervouet
- Univ. Bourgogne Franche-Comté, INSERM, EFS BFC, UMR1098, Interactions Hôte-Greffon-Tumeur/Ingénierie Cellulaire et Génique, Besançon, France
- EPIGENExp, (EPIgenetics and GENe EXPression Technical Platform), Besançon, France
| | - Elodie Renaude
- Univ. Bourgogne Franche-Comté, INSERM, EFS BFC, UMR1098, Interactions Hôte-Greffon-Tumeur/Ingénierie Cellulaire et Génique, Besançon, France
- EPIGENExp, (EPIgenetics and GENe EXPression Technical Platform), Besançon, France
| | - Sonia H Y Kung
- Department of Urologic Sciences, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
- Vancouver Prostate Centre, Vancouver, British Columbia, Canada
| | - Laura C A Galbraith
- CRUK Beatson Institute, Garscube Estate, Glasgow, United Kingdom
- Institute of Cancer Sciences, University of Glasgow, Garscube Estate, Glasgow, United Kingdom
| | - Colin Nixon
- CRUK Beatson Institute, Garscube Estate, Glasgow, United Kingdom
| | - Sergio Lilla
- CRUK Beatson Institute, Garscube Estate, Glasgow, United Kingdom
| | - Gillian M MacKay
- CRUK Beatson Institute, Garscube Estate, Glasgow, United Kingdom
| | - Ladan Fazli
- Department of Urologic Sciences, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
- Vancouver Prostate Centre, Vancouver, British Columbia, Canada
| | - Luke Gaughan
- Northern Institute for Cancer Research, The Medical School, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - David Sumpton
- CRUK Beatson Institute, Garscube Estate, Glasgow, United Kingdom
| | - Martin E Gleave
- Department of Urologic Sciences, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
- Vancouver Prostate Centre, Vancouver, British Columbia, Canada
| | - Sara Zanivan
- CRUK Beatson Institute, Garscube Estate, Glasgow, United Kingdom
- Institute of Cancer Sciences, University of Glasgow, Garscube Estate, Glasgow, United Kingdom
| | - Arnaud Blomme
- CRUK Beatson Institute, Garscube Estate, Glasgow, United Kingdom.
| | - Hing Y Leung
- CRUK Beatson Institute, Garscube Estate, Glasgow, United Kingdom.
- Institute of Cancer Sciences, University of Glasgow, Garscube Estate, Glasgow, United Kingdom
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31
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Upregulated PPARG2 facilitates interaction with demethylated AKAP12 gene promoter and suppresses proliferation in prostate cancer. Cell Death Dis 2021; 12:528. [PMID: 34023860 PMCID: PMC8141057 DOI: 10.1038/s41419-021-03820-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 05/11/2021] [Accepted: 05/11/2021] [Indexed: 12/13/2022]
Abstract
Prostate cancer (PCA) is one of the most common male genitourinary tumors. However, the molecular mechanisms involved in the occurrence and progression of PCA have not been fully clarified. The present study aimed to investigate the biological function and molecular mechanism of the nuclear receptor peroxisome proliferator-activated receptor gamma 2 (PPARG2) in PCA. Our results revealed that PPARG2 was downregulated in PCA, and overexpression of PPARG2 inhibited cell migration, colony formation, invasion and induced cell cycle arrest of PCA cells in vitro. In addition, PPARG2 overexpression modulated the activation of the Akt signaling pathway, as well as inhibited tumor growth in vivo. Moreover, mechanistic analysis revealed that PPARG2 overexpression induced increased expression level of miR-200b-3p, which targeted 3′ UTR of the downstream targets DNMT3A/3B, and facilitated interaction with demethylated AKAP12 gene promoter and suppressed cell proliferation in PCA. Our findings provided the first evidence for a novel PPARG2-AKAP12 axis mediated epigenetic regulatory network. The study identified a molecular mechanism involving an epigenetic modification that could be possibly targeted as an antitumoral strategy against prostate cancer.
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32
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Dai M, Yang B, Chen J, Liu F, Zhou Y, Zhou Y, Xu Q, Jiang S, Zhao S, Li X, Zhou X, Yang Q, Li J, Wang Y, Zhang Z, Teng Y. Nuclear-translocation of ACLY induced by obesity-related factors enhances pyrimidine metabolism through regulating histone acetylation in endometrial cancer. Cancer Lett 2021; 513:36-49. [PMID: 33991616 DOI: 10.1016/j.canlet.2021.04.024] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 04/26/2021] [Accepted: 04/27/2021] [Indexed: 12/12/2022]
Abstract
Endometrial cancer (EC) is becoming one of the most common gynecologic malignancies. Lipid metabolism is a hallmark feature of cancers. The molecular mechanisms underlying lipid metabolism in EC remain unclear. In this study, we revealed that many lipid metabolism-related genes were aberrantly expressed in endometrial cancer tissues, especially ACLY. Upregulated ACLY promoted EC cell proliferation and colony formation, and attenuated apoptosis. Mechanistically, cotreatment with obesity-related factors (estradiol, insulin and leptin) promoted nuclear translocation of ACLY through Akt-mediated phosphorylation of ACLY at Ser455. Nuclear-localized ACLY increased histone acetylation levels, thus resulting in upregulation of pyrimidine metabolism genes, such as DHODH. Moreover, STAT3 altered the ACLY expression at the transcriptional level via directly binding to its promoter region. In conclusion, our findings clarify the roles and mechanisms of ACLY in endometrial cancer and ACLY could link obesity risk factors to the regulation of histone acetylation. We believe that novel therapeutic strategies for EC can be designed by targeting the ACLY axis.
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Affiliation(s)
- Miao Dai
- Department of Obstetrics and Gynecology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200233, PR China; Department of Gynecologic Oncology, Hunan Cancer Hospital, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, PR China
| | - Bikang Yang
- Department of Obstetrics and Gynecology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200233, PR China; Department of Obstetrics and Gynecology, Shanghai Eighth People's Hospital Affiliated to Jiangsu University, Shanghai, 200233, PR China
| | - Jing Chen
- Department of Obstetrics and Gynecology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200233, PR China; Department of Obstetrics and Gynecology, Shanghai Eighth People's Hospital Affiliated to Jiangsu University, Shanghai, 200233, PR China
| | - Fei Liu
- Department of Obstetrics and Gynecology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200233, PR China
| | - Yanjie Zhou
- Department of Gynecologic Oncology, Hunan Cancer Hospital, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, PR China
| | - Yang Zhou
- Department of Obstetrics and Gynecology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200233, PR China
| | - Qinyang Xu
- Department of Obstetrics and Gynecology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200233, PR China
| | - Shuheng Jiang
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, 200240, Shanghai, PR China
| | - Shujie Zhao
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, PR China
| | - Xinchun Li
- Department of Gynecologic Oncology, Hunan Cancer Hospital, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, PR China
| | - Xuan Zhou
- Department of Gynecologic Oncology, Hunan Cancer Hospital, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, PR China
| | - Qin Yang
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, 200240, Shanghai, PR China
| | - Jun Li
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, 200240, Shanghai, PR China
| | - Yahui Wang
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, 200240, Shanghai, PR China
| | - Zhigang Zhang
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, 200240, Shanghai, PR China.
| | - Yincheng Teng
- Department of Obstetrics and Gynecology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200233, PR China; Department of Obstetrics and Gynecology, Shanghai Eighth People's Hospital Affiliated to Jiangsu University, Shanghai, 200233, PR China.
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33
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Galbraith LCA, Mui E, Nixon C, Hedley A, Strachan D, MacKay G, Sumpton D, Sansom OJ, Leung HY, Ahmad I. PPAR-gamma induced AKT3 expression increases levels of mitochondrial biogenesis driving prostate cancer. Oncogene 2021; 40:2355-2366. [PMID: 33654198 PMCID: PMC8016665 DOI: 10.1038/s41388-021-01707-7] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 02/05/2021] [Accepted: 02/09/2021] [Indexed: 02/07/2023]
Abstract
Peroxisome Proliferator-Activated Receptor Gamma (PPARG) is one of the three members of the PPAR family of transcription factors. Besides its roles in adipocyte differentiation and lipid metabolism, we recently demonstrated an association between PPARG and metastasis in prostate cancer. In this study a functional effect of PPARG on AKT serine/threonine kinase 3 (AKT3), which ultimately results in a more aggressive disease phenotype was identified. AKT3 has previously been shown to regulate PPARG co-activator 1 alpha (PGC1α) localisation and function through its action on chromosome maintenance region 1 (CRM1). AKT3 promotes PGC1α localisation to the nucleus through its inhibitory effects on CRM1, a known nuclear export protein. Collectively our results demonstrate how PPARG over-expression drives an increase in AKT3 levels, which in turn has the downstream effect of increasing PGC1α localisation within the nucleus, driving mitochondrial biogenesis. Furthermore, this increase in mitochondrial mass provides higher energetic output in the form of elevated ATP levels which may fuel the progression of the tumour cell through epithelial to mesenchymal transition (EMT) and ultimately metastasis.
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Affiliation(s)
- Laura C A Galbraith
- Cancer Research UK Beatson Institute, Switchback Road, Bearsden, Glasgow, G61 1BD, UK
- Institute of Cancer Sciences, University of Glasgow, Bearsden, Glasgow, G61 1QH, UK
| | - Ernest Mui
- Cancer Research UK Beatson Institute, Switchback Road, Bearsden, Glasgow, G61 1BD, UK
| | - Colin Nixon
- Cancer Research UK Beatson Institute, Switchback Road, Bearsden, Glasgow, G61 1BD, UK
| | - Ann Hedley
- Cancer Research UK Beatson Institute, Switchback Road, Bearsden, Glasgow, G61 1BD, UK
| | - David Strachan
- Cancer Research UK Beatson Institute, Switchback Road, Bearsden, Glasgow, G61 1BD, UK
| | - Gillian MacKay
- Cancer Research UK Beatson Institute, Switchback Road, Bearsden, Glasgow, G61 1BD, UK
| | - David Sumpton
- Cancer Research UK Beatson Institute, Switchback Road, Bearsden, Glasgow, G61 1BD, UK
| | - Owen J Sansom
- Cancer Research UK Beatson Institute, Switchback Road, Bearsden, Glasgow, G61 1BD, UK
- Institute of Cancer Sciences, University of Glasgow, Bearsden, Glasgow, G61 1QH, UK
| | - Hing Y Leung
- Cancer Research UK Beatson Institute, Switchback Road, Bearsden, Glasgow, G61 1BD, UK
- Institute of Cancer Sciences, University of Glasgow, Bearsden, Glasgow, G61 1QH, UK
| | - Imran Ahmad
- Cancer Research UK Beatson Institute, Switchback Road, Bearsden, Glasgow, G61 1BD, UK.
- Institute of Cancer Sciences, University of Glasgow, Bearsden, Glasgow, G61 1QH, UK.
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Ma S, Zhou B, Yang Q, Pan Y, Yang W, Freedland SJ, Ding LW, Freeman MR, Breunig JJ, Bhowmick NA, Pan J, Koeffler HP, Lin DC. A Transcriptional Regulatory Loop of Master Regulator Transcription Factors, PPARG, and Fatty Acid Synthesis Promotes Esophageal Adenocarcinoma. Cancer Res 2021; 81:1216-1229. [PMID: 33402390 PMCID: PMC8026506 DOI: 10.1158/0008-5472.can-20-0652] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 08/21/2020] [Accepted: 12/17/2020] [Indexed: 11/16/2022]
Abstract
Although obesity is one of the strongest risk factors for esophageal adenocarcinoma, the molecular mechanisms underlying this association remain unclear. We recently identified four esophageal adenocarcinoma-specific master regulator transcription factors (MRTF) ELF3, KLF5, GATA6, and EHF. In this study, gene-set enrichment analysis of both esophageal adenocarcinoma patient samples and cell line models unbiasedly underscores fatty acid synthesis as the central pathway downstream of three MRTFs (ELF3, KLF5, GATA6). Further characterizations unexpectedly identified a transcriptional feedback loop between MRTF and fatty acid synthesis, which mutually activated each other through the nuclear receptor, PPARG. MRTFs cooperatively promoted PPARG transcription by directly regulating its promoter and a distal esophageal adenocarcinoma-specific enhancer, leading to PPARG overexpression in esophageal adenocarcinoma. PPARG was also elevated in Barrett's esophagus, a recognized precursor to esophageal adenocarcinoma, implying that PPARG might play a role in the intestinal metaplasia of esophageal squamous epithelium. Upregulation of PPARG increased de novo synthesis of fatty acids, phospholipids, and sphingolipids as revealed by mass spectrometry-based lipidomics. Moreover, ChIP-seq, 4C-seq, and a high-fat diet murine model together characterized a novel, noncanonical, and cancer-specific function of PPARG in esophageal adenocarcinoma. PPARG directly regulated the ELF3 super-enhancer, subsequently activating the transcription of other MRTFs through an interconnected regulatory circuitry. Together, elucidation of this novel transcriptional feedback loop of MRTF/PPARG/fatty acid synthesis advances our understanding of the mechanistic foundation for epigenomic dysregulation and metabolic alterations in esophageal adenocarcinoma. More importantly, this work identifies a potential avenue for prevention and early intervention of esophageal adenocarcinoma by blocking this feedback loop. SIGNIFICANCE: These findings elucidate a transcriptional feedback loop linking epigenomic dysregulation and metabolic alterations in esophageal adenocarcinoma, indicating that blocking this feedback loop could be a potential therapeutic strategy in high-risk individuals.
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Affiliation(s)
- Sai Ma
- Department of Laboratory, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, China
- Department of Medicine, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, California
| | - Bo Zhou
- Departments of Surgery and Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, California
| | - Qian Yang
- Department of Medicine, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, California
| | - Yunzhi Pan
- Department of Pharmacy, The Affiliated Infectious Diseases Hospital of Soochow University, Suzhou, China
| | - Wei Yang
- Departments of Surgery and Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, California
| | - Stephen J Freedland
- Division of Urology, Department of Surgery, Cedars-Sinai Medical Center, Los Angeles, USA and the Durham VA Medical Center, Durham, North Carolina
| | - Ling-Wen Ding
- Department of Pathology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Michael R Freeman
- Departments of Surgery and Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, California
| | - Joshua J Breunig
- Board of Governors Regenerative Medicine Institute and Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, California
| | - Neil A Bhowmick
- Department of Medicine, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, California
| | - Jian Pan
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China.
| | - H Phillip Koeffler
- Department of Medicine, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, California
- Department of Pathology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - De-Chen Lin
- Department of Medicine, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, California.
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Zhu Y, Li Y, Bai B, Shang C, Fang J, Cong J, Li W, Li S, Song G, Liu Z, Zhao J, Li X, Zhu G, Jin N. Effects of Apoptin-Induced Endoplasmic Reticulum Stress on Lipid Metabolism, Migration, and Invasion of HepG-2 Cells. Front Oncol 2021; 11:614082. [PMID: 33718168 PMCID: PMC7952871 DOI: 10.3389/fonc.2021.614082] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Accepted: 01/26/2021] [Indexed: 11/13/2022] Open
Abstract
In this study, we investigated the effects of Apoptin-induced endoplasmic reticulum (ER) stress on lipid metabolism, migration and invasion of HepG-2 cells, and preliminarily explored the relationship between endoplasmic reticulum stress, lipid metabolism, migration, and invasion. The effects of Apoptin on ER function and structure in HepG-2 cells were determined by flow cytometry, fluorescence staining and western blotting by assessing the expression levels of ER stress related proteins. The effects of Apoptin on HepG-2 cells' lipid metabolism were determined by western blot analysis of the expression levels of triglyceride, cholesterol, and lipid metabolism related enzymes. The effects of Apoptin on HepG-2 cells' migration and invasion were studied using migration and invasion assays and by Western-blot analysis of the expression of proteins involved in migration and invasion. The in vivo effects of endoplasmic reticulum stress on lipid metabolism, migration and invasion of HepG-2 cells were also investigated by immunohistochemistry analysis of tumor tissues from HepG2 cells xenografted nude mice models. Both in vitro and in vivo experiments showed that Apoptin can cause a strong and lasting ER stress response, damage ER functional structure, significantly change the expression levels of lipid metabolism related enzymes and reduce the migration and invasion abilities of HepG-2 cells. Apoptin can also affect HepG-2 cells' lipid metabolism through endoplasmic reticulum stress and the abnormal expression of enzymes closely related to tumor migration and invasion. These results also showed that lipid metabolism may be one of the main inducements that reduce HepG-2 cells' migration and invasion abilities.
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Affiliation(s)
- Yilong Zhu
- Academicians Workstation of Jilin Province, Changchun University of Chinese Medicine, Changchun, China
| | - Yiquan Li
- Academicians Workstation of Jilin Province, Changchun University of Chinese Medicine, Changchun, China
| | - Bing Bai
- Academicians Workstation of Jilin Province, Changchun University of Chinese Medicine, Changchun, China
| | - Chao Shang
- Institute of Military Veterinary Medicine, Academy of Military Medical Science, Changchun, China
| | - Jinbo Fang
- Institute of Military Veterinary Medicine, Academy of Military Medical Science, Changchun, China
| | - Jianan Cong
- Institute of Military Veterinary Medicine, Academy of Military Medical Science, Changchun, China
| | - Wenjie Li
- Institute of Military Veterinary Medicine, Academy of Military Medical Science, Changchun, China
| | - Shanzhi Li
- Academicians Workstation of Jilin Province, Changchun University of Chinese Medicine, Changchun, China
| | - Gaojie Song
- Institute of Military Veterinary Medicine, Academy of Military Medical Science, Changchun, China
| | - Zirui Liu
- Institute of Military Veterinary Medicine, Academy of Military Medical Science, Changchun, China
| | - Jin Zhao
- Institute of Military Veterinary Medicine, Academy of Military Medical Science, Changchun, China
| | - Xiao Li
- Academicians Workstation of Jilin Province, Changchun University of Chinese Medicine, Changchun, China.,Institute of Military Veterinary Medicine, Academy of Military Medical Science, Changchun, China
| | - Guangze Zhu
- Academicians Workstation of Jilin Province, Changchun University of Chinese Medicine, Changchun, China
| | - Ningyi Jin
- Academicians Workstation of Jilin Province, Changchun University of Chinese Medicine, Changchun, China.,Institute of Military Veterinary Medicine, Academy of Military Medical Science, Changchun, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou, China
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36
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Liu RZ, Godbout R. An Amplified Fatty Acid-Binding Protein Gene Cluster in Prostate Cancer: Emerging Roles in Lipid Metabolism and Metastasis. Cancers (Basel) 2020; 12:E3823. [PMID: 33352874 PMCID: PMC7766576 DOI: 10.3390/cancers12123823] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 12/12/2020] [Accepted: 12/16/2020] [Indexed: 12/24/2022] Open
Abstract
Treatment for early stage and localized prostate cancer (PCa) is highly effective. Patient survival, however, drops dramatically upon metastasis due to drug resistance and cancer recurrence. The molecular mechanisms underlying PCa metastasis are complex and remain unclear. It is therefore crucial to decipher the key genetic alterations and relevant molecular pathways driving PCa metastatic progression so that predictive biomarkers and precise therapeutic targets can be developed. Through PCa cohort analysis, we found that a fatty acid-binding protein (FABP) gene cluster (containing five FABP family members) is preferentially amplified and overexpressed in metastatic PCa. All five FABP genes reside on chromosome 8 at 8q21.13, a chromosomal region frequently amplified in PCa. There is emerging evidence that these FABPs promote metastasis through distinct biological actions and molecular pathways. In this review, we discuss how these FABPs may serve as drivers/promoters for PCa metastatic transformation using patient cohort analysis combined with a review of the literature.
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Affiliation(s)
| | - Roseline Godbout
- Department of Oncology, Cross Cancer Institute, University of Alberta, Edmonton, AB T6G 1Z2, Canada;
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37
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Huang M, Chen L, Mao X, Liu G, Gao Y, You X, Gao M, Sehouli J, Sun P. ERRα inhibitor acts as a potential agonist of PPARγ to induce cell apoptosis and inhibit cell proliferation in endometrial cancer. Aging (Albany NY) 2020; 12:23029-23046. [PMID: 33197888 PMCID: PMC7746384 DOI: 10.18632/aging.104049] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Accepted: 08/14/2020] [Indexed: 04/11/2023]
Abstract
Two transcriptional factors, peroxisome proliferator-activated receptor-γ (PPARγ) and estrogen-related receptor-α (ERRα), have been reported to be key regulators of cellular energy metabolism. However, the relationship between ERRα and PPARγ in the development of endometrial cancer (EC) is still unclear. The expression levels of PPARγ and ERRα in EC were evaluated by quantitative real-time PCR, western blot, tissue array and immunohistochemistry. A significant negative correlation was identified between PPARγ and ERRα expression in women with EC (ρ=-0.509, P<0.001). Bioinformatics analyses showed that PPARγ and ERRα can activate or inhibit the same genes involved in cell proliferation and apoptosis through a similar ModFit. ERRα activation or PPARγ inhibition could promote proliferation and inhibit apoptosis through the Bcl-2/Caspase3 pathways. Both PPARγ and ERRα can serve as serum tumor markers. Surprisingly, as evaluated by receiver operating characteristic (ROC) curves and a logistic model, a PPARγ/ERRα ratio≤1.86 (area under the ROC curve (AUC)=0.915, Youden index=0.6633, P<0.001) was an independent risk factor for endometrial carcinogenesis (OR=14.847, 95% CI= 1.6-137.748, P=0.018). EC patients with PPARγ(-)/ERRα(+) had the worst overall survival and disease-free survival rates (both P<0.001). Thus, a dynamic imbalance between PPARγ and ERRα leads to endometrial carcinogenesis and predicts the EC prognosis.
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Affiliation(s)
- Meimei Huang
- Department of Gynecology and Obstetrics, Fujian Maternity and Child Health Hospital, Affiliated Hospital of Fujian Medical University, Fuzhou 350001, China
- Laboratory of Gynecologic Oncology, Fujian Maternity and Child Health Hospital, Affiliated Hospital of Fujian Medical University, Fuzhou 350001, China
| | - Lili Chen
- Reproductive Center, Fujian Maternity and Child Health Hospital, Affiliated Hospital of Fujian Medical University, Fuzhou 350001, Fujian, P.R. of China
| | - Xiaodan Mao
- Laboratory of Gynecologic Oncology, Fujian Maternity and Child Health Hospital, Affiliated Hospital of Fujian Medical University, Fuzhou 350001, China
| | - Guifen Liu
- Department of Gynecology and Obstetrics, Fujian Maternity and Child Health Hospital, Affiliated Hospital of Fujian Medical University, Fuzhou 350001, China
- Laboratory of Gynecologic Oncology, Fujian Maternity and Child Health Hospital, Affiliated Hospital of Fujian Medical University, Fuzhou 350001, China
| | - Yuqin Gao
- Department of Gynecology and Obstetrics, Fujian Maternity and Child Health Hospital, Affiliated Hospital of Fujian Medical University, Fuzhou 350001, China
- Laboratory of Gynecologic Oncology, Fujian Maternity and Child Health Hospital, Affiliated Hospital of Fujian Medical University, Fuzhou 350001, China
| | - Xiaoqing You
- Department of Cell Biology and Genetics, School of Basic Medical Sciences, Fujian Medical University, Fuzhou 350108, Fujian, China
| | - Min Gao
- Department of Gynecologic Oncology, Peking University Cancer Hospital, Beijing 100046, China
| | - Jalid Sehouli
- Department of Gynecology, Campus Virchow Clinic, CharitéUniversitätsmedizin Berlin, Humboldt University of Berlin, Berlin 13353, Germany
| | - Pengming Sun
- Department of Gynecology and Obstetrics, Fujian Maternity and Child Health Hospital, Affiliated Hospital of Fujian Medical University, Fuzhou 350001, China
- Laboratory of Gynecologic Oncology, Fujian Maternity and Child Health Hospital, Affiliated Hospital of Fujian Medical University, Fuzhou 350001, China
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38
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Liu RZ, Choi WS, Jain S, Dinakaran D, Xu X, Han WH, Yang XH, Glubrecht DD, Moore RB, Lemieux H, Godbout R. The FABP12/PPARγ pathway promotes metastatic transformation by inducing epithelial-to-mesenchymal transition and lipid-derived energy production in prostate cancer cells. Mol Oncol 2020; 14:3100-3120. [PMID: 33031638 PMCID: PMC7718947 DOI: 10.1002/1878-0261.12818] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 08/11/2020] [Accepted: 10/05/2020] [Indexed: 12/31/2022] Open
Abstract
Early stage localized prostate cancer (PCa) has an excellent prognosis; however, patient survival drops dramatically when PCa metastasizes. The molecular mechanisms underlying PCa metastasis are complex and remain unclear. Here, we examine the role of a new member of the fatty acid‐binding protein (FABP) family, FABP12, in PCa progression. FABP12 is preferentially amplified and/or overexpressed in metastatic compared to primary tumors from both PCa patients and xenograft animal models. We show that FABP12 concurrently triggers metastatic phenotypes (induced epithelial‐to‐mesenchymal transition (EMT) leading to increased cell motility and invasion) and lipid bioenergetics (increased fatty acid uptake and accumulation, increased ATP production from fatty acid β‐oxidation) in PCa cells, supporting increased reliance on fatty acids for energy production. Mechanistically, we show that FABP12 is a driver of PPARγ activation which, in turn, regulates FABP12's role in lipid metabolism and PCa progression. Our results point to a novel role for a FABP‐PPAR pathway in promoting PCa metastasis through induction of EMT and lipid bioenergetics.
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Affiliation(s)
- Rong-Zong Liu
- Department of Oncology, Cross Cancer Institute, University of Alberta, Edmonton, AB, Canada
| | - Won-Shik Choi
- Department of Oncology, Cross Cancer Institute, University of Alberta, Edmonton, AB, Canada
| | - Saket Jain
- Department of Oncology, Cross Cancer Institute, University of Alberta, Edmonton, AB, Canada
| | - Deepak Dinakaran
- Department of Oncology, Cross Cancer Institute, University of Alberta, Edmonton, AB, Canada
| | - Xia Xu
- Department of Oncology, Cross Cancer Institute, University of Alberta, Edmonton, AB, Canada
| | - Woo Hyun Han
- Faculty Saint-Jean, University of Alberta, Edmonton, AB, Canada
| | - Xiao-Hong Yang
- Department of Oncology, Cross Cancer Institute, University of Alberta, Edmonton, AB, Canada
| | - Darryl D Glubrecht
- Department of Oncology, Cross Cancer Institute, University of Alberta, Edmonton, AB, Canada
| | - Ronald B Moore
- Department of Oncology, Cross Cancer Institute, University of Alberta, Edmonton, AB, Canada.,Department of Surgery, University of Alberta, Edmonton, AB, Canada
| | - Hélène Lemieux
- Faculty Saint-Jean, University of Alberta, Edmonton, AB, Canada
| | - Roseline Godbout
- Department of Oncology, Cross Cancer Institute, University of Alberta, Edmonton, AB, Canada
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39
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Weber J, Braun CJ, Saur D, Rad R. In vivo functional screening for systems-level integrative cancer genomics. Nat Rev Cancer 2020; 20:573-593. [PMID: 32636489 DOI: 10.1038/s41568-020-0275-9] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/19/2020] [Indexed: 02/06/2023]
Abstract
With the genetic portraits of all major human malignancies now available, we next face the challenge of characterizing the function of mutated genes, their downstream targets, interactions and molecular networks. Moreover, poorly understood at the functional level are also non-mutated but dysregulated genomes, epigenomes or transcriptomes. Breakthroughs in manipulative mouse genetics offer new opportunities to probe the interplay of molecules, cells and systemic signals underlying disease pathogenesis in higher organisms. Herein, we review functional screening strategies in mice using genetic perturbation and chemical mutagenesis. We outline the spectrum of genetic tools that exist, such as transposons, CRISPR and RNAi and describe discoveries emerging from their use. Genome-wide or targeted screens are being used to uncover genomic and regulatory landscapes in oncogenesis, metastasis or drug resistance. Versatile screening systems support experimentation in diverse genetic and spatio-temporal settings to integrate molecular, cellular or environmental context-dependencies. We also review the combination of in vivo screening and barcoding strategies to study genetic interactions and quantitative cancer dynamics during tumour evolution. These scalable functional genomics approaches are transforming our ability to interrogate complex biological systems.
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Affiliation(s)
- Julia Weber
- Institute of Molecular Oncology and Functional Genomics, TUM School of Medicine, Technische Universität München, Munich, Germany
- Center for Translational Cancer Research (TranslaTUM), TUM School of Medicine, Technische Universität München, Munich, Germany
| | - Christian J Braun
- Institute of Molecular Oncology and Functional Genomics, TUM School of Medicine, Technische Universität München, Munich, Germany
- Department of Pediatrics, Dr. von Hauner Children's Hospital, University Hospital, LMU Munich, Munich, Germany
- Hopp Children's Cancer Center Heidelberg (KiTZ), German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Dieter Saur
- Center for Translational Cancer Research (TranslaTUM), TUM School of Medicine, Technische Universität München, Munich, Germany
- Institute of Translational Cancer Research and Experimental Cancer Therapy, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
- Department of Medicine II, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
- German Cancer Consortium (DKTK), German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Roland Rad
- Institute of Molecular Oncology and Functional Genomics, TUM School of Medicine, Technische Universität München, Munich, Germany.
- Center for Translational Cancer Research (TranslaTUM), TUM School of Medicine, Technische Universität München, Munich, Germany.
- Department of Medicine II, Klinikum rechts der Isar, Technische Universität München, Munich, Germany.
- German Cancer Consortium (DKTK), German Cancer Research Center (DKFZ), Heidelberg, Germany.
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40
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O'Sullivan SE, Kaczocha M. FABP5 as a novel molecular target in prostate cancer. Drug Discov Today 2020; 25:S1359-6446(20)30375-5. [PMID: 32966866 PMCID: PMC8059105 DOI: 10.1016/j.drudis.2020.09.018] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 08/07/2020] [Accepted: 09/15/2020] [Indexed: 12/22/2022]
Abstract
Emerging evidence suggests that dysregulated lipid signaling is a key factor in prostate cancer (PC), through fatty acid activation of the nuclear receptors peroxisome proliferator-activated receptors (PPARs), leading to the upregulation of protumoral genes. Fatty acid-binding proteins (FABPs) are intracellular lipid-binding proteins that transport fatty acid to PPARs, facilitating their activation. FABP5 is overexpressed in PC, and correlates with poor patient prognosis and survival. Genetic knockdown or silencing of FABP5 decreases the proliferation and invasiveness of PC cells in vitro, and reduces tumor growth and metastasis in vivo. Pharmacological FABP5-specific inhibitors also reduce tumor growth and metastases, and produce synergistic effects with taxanes. In this review, we present current data supporting FABP5 as a novel molecular target for PC.
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Affiliation(s)
| | - Martin Kaczocha
- Institute of Chemical Biology and Drug Discovery, Stony Brook University, Stony Brook, NYH, USA
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41
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Liu J, Muturi HT, Khuder SS, Helal RA, Ghadieh HE, Ramakrishnan SK, Kaw MK, Lester SG, Al-Khudhair A, Conran PB, Chin KV, Gatto-Weis C, Najjar SM. Loss of Ceacam1 promotes prostate cancer progression in Pten haploinsufficient male mice. Metabolism 2020; 107:154215. [PMID: 32209360 PMCID: PMC7283002 DOI: 10.1016/j.metabol.2020.154215] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 03/10/2020] [Accepted: 03/19/2020] [Indexed: 02/07/2023]
Abstract
OBJECTIVE PTEN haploinsufficiency plays an important role in prostate cancer development in men. However, monoallelic deletion of Pten gene failed to induce high prostate intraepithelial neoplasia (PIN) until Pten+/- mice aged or fed a high-calorie diet. Because CEACAM1, a cell adhesion molecule with a potential tumor suppression activity, is induced in Pten+/- prostates, the study aimed at examining whether the rise of CEACAM1 limited neoplastic progression in Pten+/- prostates. METHODS Pten+/- were crossbred with Cc1-/- mice harboring a null deletion of Ceacam1 gene to produce Pten+/-/Cc1-/- double mutants. Prostates from 7-month old male mice were analyzed histologically and biochemically for PIN progression. RESULTS Deleting Ceacam1 in Pten+/- mice caused an early development of high-grade PIN in parallel to hyperactivation of PI3 kinase/Akt and Ras/MAP kinase pathways, with an increase in cell proliferation, epithelial-to-mesenchymal transition, angiogenesis and inflammation relative to Pten+/- and Cc1-/- individual mutants. It also caused a remarkable increase in lipogenesis in prostate despite maintaining insulin sensitivity. Concomitant Ceacam1 deletion with Pten+/- activated the IL-6/STAT3 signaling pathways to suppress Irf-8 transcription that in turn, led to a decrease in the expression level of promyelocytic leukemia gene, a well characterized tumor suppressor in prostate. CONCLUSIONS Ceacam1 deletion accelerated high-grade prostate intraepithelial neoplasia in Pten haploinsufficient mice while preserving insulin sensitivity. This demonstrated that the combined loss of Ceacam1 and Pten advanced prostate cancer by increasing lipogenesis and modifying the STAT3-dependent inflammatory microenvironment of prostate.
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Affiliation(s)
- Jehnan Liu
- Center for Diabetes and Endocrine Research, University of Toledo College of Medicine and Life Sciences, Toledo, OH 43614, USA; Department of Physiology and Pharmacology, University of Toledo College of Medicine and Life Sciences, Toledo, OH 43614, USA
| | - Harrison T Muturi
- Center for Diabetes and Endocrine Research, University of Toledo College of Medicine and Life Sciences, Toledo, OH 43614, USA; Department of Physiology and Pharmacology, University of Toledo College of Medicine and Life Sciences, Toledo, OH 43614, USA; Department of Biomedical Sciences, Heritage College of Osteopathic Medicine, Ohio University, Athens, OH 45701, USA
| | - Saja S Khuder
- Center for Diabetes and Endocrine Research, University of Toledo College of Medicine and Life Sciences, Toledo, OH 43614, USA; Department of Physiology and Pharmacology, University of Toledo College of Medicine and Life Sciences, Toledo, OH 43614, USA
| | - Raghd Abu Helal
- Department of Biomedical Sciences, Heritage College of Osteopathic Medicine, Ohio University, Athens, OH 45701, USA
| | - Hilda E Ghadieh
- Center for Diabetes and Endocrine Research, University of Toledo College of Medicine and Life Sciences, Toledo, OH 43614, USA; Department of Physiology and Pharmacology, University of Toledo College of Medicine and Life Sciences, Toledo, OH 43614, USA; Department of Biomedical Sciences, Heritage College of Osteopathic Medicine, Ohio University, Athens, OH 45701, USA
| | - Sadeesh K Ramakrishnan
- Center for Diabetes and Endocrine Research, University of Toledo College of Medicine and Life Sciences, Toledo, OH 43614, USA; Department of Physiology and Pharmacology, University of Toledo College of Medicine and Life Sciences, Toledo, OH 43614, USA
| | - Meenakshi K Kaw
- Center for Diabetes and Endocrine Research, University of Toledo College of Medicine and Life Sciences, Toledo, OH 43614, USA; Department of Physiology and Pharmacology, University of Toledo College of Medicine and Life Sciences, Toledo, OH 43614, USA
| | - Sumona Ghosh Lester
- Center for Diabetes and Endocrine Research, University of Toledo College of Medicine and Life Sciences, Toledo, OH 43614, USA; Department of Physiology and Pharmacology, University of Toledo College of Medicine and Life Sciences, Toledo, OH 43614, USA
| | - Ahmed Al-Khudhair
- Center for Diabetes and Endocrine Research, University of Toledo College of Medicine and Life Sciences, Toledo, OH 43614, USA; Department of Medicine, University of Toledo College of Medicine and Life Sciences, Toledo, OH, 43614, USA
| | - Philip B Conran
- Department of Pathology, University of Toledo College of Medicine and Life Sciences, Toledo, OH 43614, USA
| | - Khew-Voon Chin
- Center for Diabetes and Endocrine Research, University of Toledo College of Medicine and Life Sciences, Toledo, OH 43614, USA; Department of Medicine, University of Toledo College of Medicine and Life Sciences, Toledo, OH, 43614, USA
| | - Cara Gatto-Weis
- Center for Diabetes and Endocrine Research, University of Toledo College of Medicine and Life Sciences, Toledo, OH 43614, USA; Department of Pathology, University of Toledo College of Medicine and Life Sciences, Toledo, OH 43614, USA
| | - Sonia M Najjar
- Center for Diabetes and Endocrine Research, University of Toledo College of Medicine and Life Sciences, Toledo, OH 43614, USA; Department of Physiology and Pharmacology, University of Toledo College of Medicine and Life Sciences, Toledo, OH 43614, USA; Department of Biomedical Sciences, Heritage College of Osteopathic Medicine, Ohio University, Athens, OH 45701, USA; Diabetes Institute, Heritage College of Osteopathic Medicine, Ohio University, Athens, OH, 45701, USA.
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42
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Meyer Zu Reckendorf S, Brand C, Pedro MT, Hegler J, Schilling CS, Lerner R, Bindila L, Antoniadis G, Knöll B. Lipid metabolism adaptations are reduced in human compared to murine Schwann cells following injury. Nat Commun 2020; 11:2123. [PMID: 32358558 PMCID: PMC7195462 DOI: 10.1038/s41467-020-15915-4] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Accepted: 04/03/2020] [Indexed: 11/10/2022] Open
Abstract
Mammals differ in their regeneration potential after traumatic injury, which might be caused by species-specific regeneration programs. Here, we compared murine and human Schwann cell (SC) response to injury and developed an ex vivo injury model employing surgery-derived human sural nerves. Transcriptomic and lipid metabolism analysis of murine SCs following injury of sural nerves revealed down-regulation of lipogenic genes and regulator of lipid metabolism, including Pparg (peroxisome proliferator-activated receptor gamma) and S1P (sphingosine-1-phosphate). Human SCs failed to induce similar adaptations following ex vivo nerve injury. Pharmacological PPARg and S1P stimulation in mice resulted in up-regulation of lipid gene expression, suggesting a role in SCs switching towards a myelinating state. Altogether, our results suggest that murine SC switching towards a repair state is accompanied by transcriptome and lipidome adaptations, which are reduced in humans.
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Affiliation(s)
| | - Christine Brand
- Department of Neurosurgery, Hospital Bogenhausen, 81925, Munich, Germany
| | - Maria T Pedro
- Peripheral Nerve Surgery Unit, Department of Neurosurgery, Ulm University, District Hospital, 89312, Günzburg, Germany
| | - Jutta Hegler
- Institute of Physiological Chemistry, Ulm University, 89081, Ulm, Germany
| | | | - Raissa Lerner
- Institute of Physiological Chemistry, University Medical Centre of the Johannes Gutenberg University Mainz, 55128, Mainz, Germany
| | - Laura Bindila
- Institute of Physiological Chemistry, University Medical Centre of the Johannes Gutenberg University Mainz, 55128, Mainz, Germany
| | - Gregor Antoniadis
- Peripheral Nerve Surgery Unit, Department of Neurosurgery, Ulm University, District Hospital, 89312, Günzburg, Germany
| | - Bernd Knöll
- Institute of Physiological Chemistry, Ulm University, 89081, Ulm, Germany.
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43
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Peng T, Wang G, Cheng S, Xiong Y, Cao R, Qian K, Ju L, Wang X, Xiao Y. The role and function of PPARγ in bladder cancer. J Cancer 2020; 11:3965-3975. [PMID: 32328200 PMCID: PMC7171493 DOI: 10.7150/jca.42663] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Accepted: 03/08/2020] [Indexed: 12/15/2022] Open
Abstract
Peroxisome proliferator-activated receptor gamma (PPARγ), a member of the nuclear receptor superfamily, participates in multiple physiological and pathological processes. Extensive studies have revealed the relationship between PPARγ and various tumors. However, the expression and function of PPARγ in bladder cancer seem to be controversial. It has been demonstrated that PPARγ affects the occurrence and progression of bladder cancer by regulating proliferation, apoptosis, metastasis, and reactive oxygen species (ROS) and lipid metabolism, probably through PPARγ-SIRT1 feedback loops, the PI3K-Akt signaling pathway, and the WNT/β-catenin signaling pathway. Considering the frequent relapses after chemotherapy, some researchers have focused on the relationship between PPARγ and chemotherapy sensitivity in bladder cancer. Moreover, the feasibility of PPARγ ligands as potential therapeutic targets for bladder cancer has been uncovered. Taken together, this review summarizes the relevant literature and our findings to explore the complicated role and function of PPARγ in bladder cancer.
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Affiliation(s)
- Tianchen Peng
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China.,Cancer Precision Diagnosis and Treatment and Translational Medicine Hubei Engineering Research Center, Wuhan, China
| | - Gang Wang
- Department of Biological Repositories, Zhongnan Hospital of Wuhan University, Wuhan, China.,Human Genetics Resource Preservation Center of Wuhan University, Wuhan, China.,Human Genetics Resource Preservation Center of Hubei Province, Wuhan, China
| | - Songtao Cheng
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China.,Cancer Precision Diagnosis and Treatment and Translational Medicine Hubei Engineering Research Center, Wuhan, China
| | - Yaoyi Xiong
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China.,Cancer Precision Diagnosis and Treatment and Translational Medicine Hubei Engineering Research Center, Wuhan, China
| | - Rui Cao
- Department of Urology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Kaiyu Qian
- Department of Biological Repositories, Zhongnan Hospital of Wuhan University, Wuhan, China.,Human Genetics Resource Preservation Center of Wuhan University, Wuhan, China.,Human Genetics Resource Preservation Center of Hubei Province, Wuhan, China
| | - Lingao Ju
- Department of Biological Repositories, Zhongnan Hospital of Wuhan University, Wuhan, China.,Human Genetics Resource Preservation Center of Wuhan University, Wuhan, China.,Human Genetics Resource Preservation Center of Hubei Province, Wuhan, China
| | - Xinghuan Wang
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Yu Xiao
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China.,Department of Biological Repositories, Zhongnan Hospital of Wuhan University, Wuhan, China.,Human Genetics Resource Preservation Center of Wuhan University, Wuhan, China.,Human Genetics Resource Preservation Center of Hubei Province, Wuhan, China.,Cancer Precision Diagnosis and Treatment and Translational Medicine Hubei Engineering Research Center, Wuhan, China
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44
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Fan L, Li H, Wang W. Long non-coding RNA PRRT3-AS1 silencing inhibits prostate cancer cell proliferation and promotes apoptosis and autophagy. Exp Physiol 2020; 105:793-808. [PMID: 32086850 DOI: 10.1113/ep088011] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Accepted: 02/20/2020] [Indexed: 12/14/2022]
Abstract
NEW FINDINGS What is the central question of this study? What is the role of lncRNA PRRT3-AS1 in the regulation of peroxisome proliferator-activated receptor γ (PPARγ) gene-mediated mechanistic target of rapamycin (mTOR) signalling pathway in proliferation, apoptosis and autophagy of prostate cancer cells? What is the main finding and its importance? The targeting relation between lncRNA PRRT3-AS1 and PPARγ was verified, and it was demonstrated that silencing of lncRNA PRRT3-AS1 can upregulate apoptosis and autophagy yet downregulate proliferation, migration and invasion of prostate cancer cells through the mTOR signalling pathway. Further work is needed to consolidate the therapeutic value of lncRNA PRRT3-AS1 in clinical trials and treatment of prostate cancer. ABSTRACT Although long non-coding RNAs (lncRNAs) are correlated with multiple cancers, their molecular mechanisms in prostate cancer (PC) remain inadequately understood. This study investigated the effects of lncRNA PRRT3-AS1 on the progression of prostate cancer (PC) with involvement of peroxisome proliferator-activated receptor γ (PPARγ). Microarray analysis was used to identify the differentially expressed genes and lncRNAs associated with PC. RT-qPCR and western blot analysis were employed to test the expression of lncRNA PRRT3-AS1, mammalian target of rapamycin (mTOR) signalling pathway-, apoptosis- and autophagy-related genes. A scratch test, Transwell assay, CCK-8 assay, colony formation assay, flow cytometry and monodansylcadaverine staining were employed to identify the migration, invasion, proliferation activity, cell cycle and apoptosis and autophagy of PC3 cells, respectively. Tumorigenicity assays in nude mice were used to detect the tumorigenic ability. GSE55945 and GSE46602 datasets indicated that lncRNA PRRT3-AS1 was highly expressed in PC. PPARγ was predicted as a target gene of lncRNA PRRT3-AS1. Ectopic overexpression of PPARγ or lncRNA PRRT3-AS1 silencing led to inhibited cell viability, migration and invasion, and accelerated apoptosis. Furthermore, the delivery of si-PRRT3-AS1 or PPARγ vector to PC3 cells resulted in the regression of xenografts in nude mice. Based on the in vitro and in vivo experiments, silencing of lncRNA PRRT3-AS1 was observed to activate the PPARγ gene, which in turn could inhibit PC cell proliferation and promote apoptosis and autophagy by blocking the mTOR signalling pathway.
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Affiliation(s)
- Li Fan
- Department of Urology, China and Japan Union Hospital of Jilin University, Changchun, 130033, P.R. China
| | - Hai Li
- Department of Urology, China and Japan Union Hospital of Jilin University, Changchun, 130033, P.R. China
| | - Weihua Wang
- Department of Urology, China and Japan Union Hospital of Jilin University, Changchun, 130033, P.R. China
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Transposon Insertion Mutagenesis in Mice for Modeling Human Cancers: Critical Insights Gained and New Opportunities. Int J Mol Sci 2020; 21:ijms21031172. [PMID: 32050713 PMCID: PMC7036786 DOI: 10.3390/ijms21031172] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 01/30/2020] [Accepted: 02/03/2020] [Indexed: 02/07/2023] Open
Abstract
Transposon mutagenesis has been used to model many types of human cancer in mice, leading to the discovery of novel cancer genes and insights into the mechanism of tumorigenesis. For this review, we identified over twenty types of human cancer that have been modeled in the mouse using Sleeping Beauty and piggyBac transposon insertion mutagenesis. We examine several specific biological insights that have been gained and describe opportunities for continued research. Specifically, we review studies with a focus on understanding metastasis, therapy resistance, and tumor cell of origin. Additionally, we propose further uses of transposon-based models to identify rarely mutated driver genes across many cancers, understand additional mechanisms of drug resistance and metastasis, and define personalized therapies for cancer patients with obesity as a comorbidity.
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Chaturvedi AP, Dehm SM. Androgen Receptor Dependence. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2020; 1210:333-350. [PMID: 31900916 DOI: 10.1007/978-3-030-32656-2_15] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Androgens and the androgen receptor (AR) play crucial roles in the biology of normal and diseased prostate tissue, including prostate cancer (PCa). This dependence is evidenced by the use of androgen depletion therapy (ADT) as the primary treatment for locally advanced, metastatic, or relapsed PCa. This dependence is further evidenced by the various mechanisms employed by PCa cells to re-activate the AR to circumvent the growth-inhibitory effects of ADT. Re-activation of the AR during ADT is central to the disease evolving into the lethal castration resistant PCa (CRPC) phenotype, which is responsible for nearly all PCa mortality. Thus, understanding the regulation of AR and AR signaling is important for understanding the development and progression of PCa. This understanding provides the foundation for development of newer approaches for targeting CRPC therapeutically.
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Affiliation(s)
| | - Scott M Dehm
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN, USA.
- Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, MN, USA.
- Department of Urology, University of Minnesota, Minneapolis, MN, USA.
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Elix CC, Salgia MM, Otto-Duessel M, Copeland BT, Yoo C, Lee M, Tew BY, Ann D, Pal SK, Jones JO. Peroxisome proliferator-activated receptor gamma controls prostate cancer cell growth through AR-dependent and independent mechanisms. Prostate 2020; 80:162-172. [PMID: 31769890 PMCID: PMC8985763 DOI: 10.1002/pros.23928] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Accepted: 10/15/2019] [Indexed: 12/22/2022]
Abstract
BACKGROUND Prostate cancer (PC) remains a leading cause of cancer mortality and the most successful chemopreventative and treatment strategies for PC come from targeting the androgen receptor (AR). Although AR plays a key role, it is likely that other molecular pathways also contribute to PC, making it essential to identify and develop drugs against novel targets. Recent studies have identified peroxisome proliferator-activated receptor gamma (PPARγ), a nuclear receptor that regulates fatty acid (FA) metabolism, as a novel target in PC, and suggest that inhibitors of PPARγ could be used to treat existing disease. We hypothesized that PPARγ acts through AR-dependent and independent mechanisms to control PC development and growth and that PPARγ inhibition is a viable PC treatment strategy. METHODS Immunohistochemistry was used to determine expression of PPARү in a cohort of patients with PC. Standard molecular techniques were used to investigate the PPARү signaling in PC cells as well a xenograft mouse model to test PPARү inhibition in vivo. Kaplan-Meier curves were created using cBioportal. RESULTS We confirmed the expression of PPARү in human PC. We then showed that small molecule inhibition of PPARγ decreases the growth of AR-positive and -negative PC cells in vitro and that T0070907, a potent PPARγ antagonist, significantly decreased the growth of human PC xenografts in nude mice. We found that PPARγ antagonists or small interfering RNA (siRNA) do not affect mitochondrial activity nor do they cause apoptosis; instead, they arrest the cell cycle. In AR-positive PC cells, antagonists and siRNAs reduce AR transcript and protein levels, which could contribute to growth inhibition. AR-independent effects on growth appear to be mediated by effects on FA metabolism as the specific FASN inhibitor, Fasnall, inhibited PC cell growth but did not have an additive effect when combined with PPARγ antagonists. Patients with increased PPARү target gene expression, but not alterations in PPARү itself, were found to have significantly worse overall survival. CONCLUSIONS Having elucidated the direct cancer cell effects of PPARγ inhibition, our studies have helped to determine the role of PPARγ in PC growth, and support the hypothesis that PPARγ inhibition is an effective strategy for PC treatment.
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Affiliation(s)
- Catherine C Elix
- Department of Medical Oncology, City of Hope, Duarte, California
| | - Meghan M Salgia
- Department of Medical Oncology, City of Hope, Duarte, California
| | | | - Ben T Copeland
- Department of Medical Oncology, City of Hope, Duarte, California
| | - Christopher Yoo
- Department of Medical Oncology, City of Hope, Duarte, California
| | - Michael Lee
- Department of Diabetes Complications and Metabolism, City of Hope, Duarte, California
| | - Ben Yi Tew
- Department of Medical Oncology, City of Hope, Duarte, California
| | - David Ann
- Department of Diabetes Complications and Metabolism, City of Hope, Duarte, California
| | - Sumanta K Pal
- Department of Medical Oncology, City of Hope, Duarte, California
| | - Jeremy O Jones
- Department of Medical Oncology, City of Hope, Duarte, California
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Carbonetti G, Converso C, Clement T, Wang C, Trotman L, Ojima I, Kaczocha M. Docetaxel/cabazitaxel and fatty acid binding protein 5 inhibitors produce synergistic inhibition of prostate cancer growth. Prostate 2020; 80:88-98. [PMID: 31661167 PMCID: PMC7063589 DOI: 10.1002/pros.23921] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2019] [Accepted: 10/09/2019] [Indexed: 12/24/2022]
Abstract
BACKGROUND Prostate cancer (PCa) remains the second leading cause of cancer-related death among men. Taxanes, such as docetaxel and cabazitaxel are utilized in standard treatment regimens for chemotherapy naïve castration-resistant PCa. However, tumors often develop resistance to taxane chemotherapeutics, highlighting a need to identify additional therapeutic targets. Fatty acid-binding protein 5 (FABP5) is an intracellular lipid carrier whose expression is upregulated in metastatic PCa and increases cell growth, invasion, and tumor formation. Here, we assessed whether FABP5 inhibitors synergize with semi-synthetic taxanes to induce cytotoxicity in vitro and attenuate tumor growth in vivo. METHODS PC3, DU-145, and 22Rv1 PCa cells were incubated with FABP5 inhibitors Stony Brook fatty acid-binding protein inhibitor 102 (SBFI-102) or SBFI-103 in the presence or absence of docetaxel or cabazitaxel, and cytotoxicity was evaluated using the 3-(4,5-dimethylthiazol-2-yl)-2,5 diphenyl tetrazolium bromide assay. Cytotoxicity of SBFI-102 and SBFI-103 was also evaluated in noncancerous cells. For the in vivo studies, PC3 cells were subcutaneously implanted into BALB/c nude mice, which were subsequently treated with FABP5 inhibitors, docetaxel, or a combination of both. RESULTS SBFI-102 and SBFI-103 produced cytotoxicity in the PCa cells. Coincubation of the PCa cells with FABP5 inhibitors and docetaxel or cabazitaxel produced synergistic cytotoxic effects in vitro. Treatment of mice with FABP5 inhibitors reduced tumor growth and a combination of FABP5 inhibitors with a submaximal dose of docetaxel reduced tumor growth to a larger extent than treatment with each drug alone. CONCLUSIONS FABP5 inhibitors increase the cytotoxic and tumor-suppressive effects of taxanes in PCa cells. The ability of these drugs to synergize could permit more efficacious antitumor activity while allowing for dosages of docetaxel or cabazitaxel to be lowered, potentially decreasing taxane-resistance.
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Affiliation(s)
- Gregory Carbonetti
- Department of Biochemistry and Cell Biology, Stony Brook University, Stony Brook, New York
- Graduate Program in Molecular and Cellular Biology, Stony Brook University, Stony Brook, New York
- Department of Anesthesiology, Stony Brook University, Stony Brook, New York
| | - Cynthia Converso
- Department of Biochemistry and Cell Biology, Stony Brook University, Stony Brook, New York
- Graduate Program in Molecular and Cellular Biology, Stony Brook University, Stony Brook, New York
| | - Timothy Clement
- Department of Chemistry, Stony Brook University, Stony Brook, New York
- Institute of Chemical Biology and Drug Discovery, Stony Brook University, Stony Brook, New York
| | - Changwei Wang
- Department of Chemistry, Stony Brook University, Stony Brook, New York
- Institute of Chemical Biology and Drug Discovery, Stony Brook University, Stony Brook, New York
| | - Lloyd Trotman
- Cold Spring Harbor Laboratory, Cold Spring Harbor, New York
| | - Iwao Ojima
- Department of Chemistry, Stony Brook University, Stony Brook, New York
- Institute of Chemical Biology and Drug Discovery, Stony Brook University, Stony Brook, New York
| | - Martin Kaczocha
- Department of Biochemistry and Cell Biology, Stony Brook University, Stony Brook, New York
- Department of Anesthesiology, Stony Brook University, Stony Brook, New York
- Institute of Chemical Biology and Drug Discovery, Stony Brook University, Stony Brook, New York
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The vital role of ATP citrate lyase in chronic diseases. J Mol Med (Berl) 2019; 98:71-95. [PMID: 31858156 DOI: 10.1007/s00109-019-01863-0] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Revised: 11/25/2019] [Accepted: 11/27/2019] [Indexed: 02/07/2023]
Abstract
Chronic or non-communicable diseases are the leading cause of death worldwide; they usually result in long-term illnesses and demand long-term care. Despite advances in molecular therapeutics, specific biomarkers and targets for the treatment of these diseases are required. The dysregulation of de novo lipogenesis has been found to play an essential role in cell metabolism and is associated with the development and progression of many chronic diseases; this confirms the link between obesity and various chronic diseases. The main enzyme in this pathway-ATP-citrate lyase (ACLY), a lipogenic enzyme-catalyzes the critical reaction linking cellular glucose catabolism and lipogenesis. Increasing lines of evidence suggest that the modulation of ACLY expression correlates with the development and progressions of various chronic diseases such as neurodegenerative diseases, cardiovascular diseases, diabetes, obesity, inflammation, and cancer. Recent studies suggest that the inhibition of ACLY activity modulates the glycolysis and lipogenesis processes and stimulates normal physiological functions. This comprehensive review aimed to critically evaluate the role of ACLY in the development and progression of different diseases and the effects of its downregulation in the prevention and treatment of these diseases.
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Carbonetti G, Wilpshaar T, Kroonen J, Studholme K, Converso C, d'Oelsnitz S, Kaczocha M. FABP5 coordinates lipid signaling that promotes prostate cancer metastasis. Sci Rep 2019; 9:18944. [PMID: 31831821 PMCID: PMC6908725 DOI: 10.1038/s41598-019-55418-x] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Accepted: 11/15/2019] [Indexed: 01/11/2023] Open
Abstract
Prostate cancer (PCa) is defined by dysregulated lipid signaling and is characterized by upregulation of lipid metabolism-related genes including fatty acid binding protein 5 (FABP5), fatty acid synthase (FASN), and monoacylglycerol lipase (MAGL). FASN and MAGL are enzymes that generate cellular fatty acid pools while FABP5 is an intracellular chaperone that delivers fatty acids to nuclear receptors to enhance PCa metastasis. Since FABP5, FASN, and MAGL have been independently implicated in PCa progression, we hypothesized that FABP5 represents a central mechanism linking cytosolic lipid metabolism to pro-metastatic nuclear receptor signaling. Here, we show that the abilities of FASN and MAGL to promote nuclear receptor activation and PCa metastasis are critically dependent upon co-expression of FABP5 in vitro and in vivo. Our findings position FABP5 as a key driver of lipid-mediated metastasis and suggest that disruption of lipid signaling via FABP5 inhibition may constitute a new avenue to treat metastatic PCa.
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Affiliation(s)
- Gregory Carbonetti
- Department of Biochemistry and Cell Biology, Stony Brook University, Stony Brook, NY, 11794, USA.,Department of Anesthesiology, Stony Brook University, Stony Brook, NY, 11794, USA.,Graduate Program in Molecular and Cellular Biology, Stony Brook University, Stony Brook, NY, 11794, USA
| | - Tessa Wilpshaar
- Department of Biochemistry and Cell Biology, Stony Brook University, Stony Brook, NY, 11794, USA.,Department of Anesthesiology, Stony Brook University, Stony Brook, NY, 11794, USA
| | - Jessie Kroonen
- Department of Biochemistry and Cell Biology, Stony Brook University, Stony Brook, NY, 11794, USA.,Department of Anesthesiology, Stony Brook University, Stony Brook, NY, 11794, USA
| | - Keith Studholme
- Department of Anesthesiology, Stony Brook University, Stony Brook, NY, 11794, USA
| | - Cynthia Converso
- Department of Biochemistry and Cell Biology, Stony Brook University, Stony Brook, NY, 11794, USA.,Graduate Program in Molecular and Cellular Biology, Stony Brook University, Stony Brook, NY, 11794, USA
| | - Simon d'Oelsnitz
- Department of Biochemistry and Cell Biology, Stony Brook University, Stony Brook, NY, 11794, USA
| | - Martin Kaczocha
- Department of Biochemistry and Cell Biology, Stony Brook University, Stony Brook, NY, 11794, USA. .,Department of Anesthesiology, Stony Brook University, Stony Brook, NY, 11794, USA. .,Institute of Chemical Biology and Drug Discovery, Stony Brook University, Stony Brook, NY, 11794, USA.
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