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Xu Q, Gao J, Zhao R, Li H, Cui H, Yuan Z, Ren H, Cao B, Wei B. Akkermansia muciniphila-derived pentadecanoic acid enhances oxaliplatin sensitivity in gastric cancer by modulating glycolysis. Pharmacol Res 2024; 206:107278. [PMID: 38908613 DOI: 10.1016/j.phrs.2024.107278] [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: 04/24/2024] [Revised: 06/12/2024] [Accepted: 06/19/2024] [Indexed: 06/24/2024]
Abstract
Accumulating evidence has proved the close association between alterations in gut microbiota and resistance to chemotherapeutic drugs. However, the potential roles of gut microbiota in regulating oxaliplatin sensitivity in gastric cancer (GC) have not been investigated before. We first found that antibiotic treatment diminished the therapeutic efficacy of oxaliplatin in a GC mouse model. Importantly, this effect could be transmitted to germ-free mice via fecal microbiota transplantation, indicating a potential role of gut microbiota modulation in oxaliplatin efficacy. Further, metagenomics data showed that Akkermansia muciniphila (A. muciniphila) ranked first among the bacterial species with decreased relative abundances after antibiotic treatment. Metabolically active A. muciniphila promotes oxaliplatin efficacy. As shown by metabolomics analysis, the metabolic pattern of gut microbiota was disrupted with significantly downregulated levels of pentadecanoic acid (PEA), and the use of PEA significantly promoted oxaliplatin efficacy. Mechanistically, FUBP1 positively regulated aerobic glycolysis of GC cells to hinder the therapeutic efficacy of oxaliplatin. A. muciniphila-derived PEA functioned as an inhibitory factor of glycolysis by directly antagonizing the activity of FUBP1, which potentiated GC responses to oxaliplatin. Our research suggested a key role for intestinal A. muciniphila and its metabolite PEA in promoting oxaliplatin efficacy, thus providing a new perspective for probiotic and prebiotic intervention in GC patients during chemotherapy.
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Affiliation(s)
- Qixuan Xu
- Department of General Surgery, First Medical Center, Chinese PLA General Hospital, Beijing 100853, China; Medical School of Chinese PLA, Beijing 100853, China
| | - Jingwang Gao
- Department of General Surgery, First Medical Center, Chinese PLA General Hospital, Beijing 100853, China; Medical School of Chinese PLA, Beijing 100853, China
| | - Ruiyang Zhao
- Department of General Surgery, First Medical Center, Chinese PLA General Hospital, Beijing 100853, China; Medical School of Chinese PLA, Beijing 100853, China
| | - Hanghang Li
- Department of General Surgery, First Medical Center, Chinese PLA General Hospital, Beijing 100853, China; Medical School of Chinese PLA, Beijing 100853, China
| | - Hao Cui
- Department of General Surgery, First Medical Center, Chinese PLA General Hospital, Beijing 100853, China; School of Medicine, Nankai University, Tianjin, China
| | - Zhen Yuan
- Department of General Surgery, First Medical Center, Chinese PLA General Hospital, Beijing 100853, China; School of Medicine, Nankai University, Tianjin, China
| | - Huiguang Ren
- Department of General Surgery, First Medical Center, Chinese PLA General Hospital, Beijing 100853, China; Medical School of Chinese PLA, Beijing 100853, China
| | - Bo Cao
- Department of General Surgery, First Medical Center, Chinese PLA General Hospital, Beijing 100853, China.
| | - Bo Wei
- Department of General Surgery, First Medical Center, Chinese PLA General Hospital, Beijing 100853, China.
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Gaballah AI, Elsherbiny AA, Sharaky M, Hamed NO, Raslan NA, Almilaibary A, Fayyad RMA, Ousman MS, Hamdan AME, Fahim SA. Dexamethasone-tamoxifen combination exerts synergistic therapeutic effects in tamoxifen-resistance breast cancer cells. Biosci Rep 2024; 44:BSR20240367. [PMID: 38864530 PMCID: PMC11230869 DOI: 10.1042/bsr20240367] [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: 03/20/2024] [Revised: 06/03/2024] [Accepted: 06/11/2024] [Indexed: 06/13/2024] Open
Abstract
Tamoxifen (TAM) is a key player in estrogen receptor-positive (ER+) breast cancer (BC); however, ∼30% of patients experience relapse and a lower survival rate due to TAM resistance. TAM resistance was related to the over expression of SOX-2 gene, which is regulated by the E2F3 transcription factor in the Wnt signaling pathway. It was suggested that SOX-2 overexpression was suppressed by dexamethasone (DEX), a glucocorticoid commonly prescribed to BC patients. The aim of the present study is to explore the effect of combining DEX and TAM on the inhibition of TAM-resistant LCC-2 cells (TAMR-1) through modulating the E2F3/SOX-2-mediated Wnt signaling pathway. The effect of the combination therapy on MCF-7 and TAMR-1 cell viability was assessed. Drug interactions were analyzed using CompuSyn and SynergyFinder softwares. Cell cycle distribution, apoptotic protein expression, gene expression levels of SOX-2 and E2F3, and cell migration were also assessed. Combining DEX with TAM led to synergistic inhibition of TAMR-1 cell proliferation and migration, induced apoptosis, reduced SOX-2 and E2F3 expression and was also associated with S and G2-M phase arrest. Therefore, combining DEX with TAM may present an effective therapeutic option to overcome TAM resistance, by targeting the E2F3/SOX-2/Wnt signaling pathway, in addition to its anti-inflammatory effect.
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Affiliation(s)
- Aliaa I Gaballah
- School of Pharmacy, Newgiza University (NGU), Newgiza, km 22 Cairo-Alexandria Desert Road, Giza, P.O. Box 12577, Egypt
| | - Aliaa A Elsherbiny
- Department of Biochemistry, School of Pharmacy, Newgiza University (NGU), Newgiza, km 22 Cairo-Alexandria Desert Road, Giza, P.O. Box 12577, Egypt
| | - Marwa Sharaky
- Pharmacology Unit, Department of Cancer Biology, National Cancer Institute, Cairo University, Giza, Egypt
| | - Najat O Hamed
- Department of Pharmaceutical Sciences, College of Pharmacy, AlMaarefa University, P.O. Box 71666, Riyadh 11597, Saudi Arabia
| | - Nahed A Raslan
- Department of Pharmacology and Toxicology, Faculty of Pharmacy (Girls), Al-Azhar University, Cairo 11651, Egypt
- Clinical Pharmacy Program, College of Health Sciences and Nursing, Al-Rayan Colleges, Medina 42541, Saudi Arabia
| | - Abdullah Almilaibary
- Department of Family and Community Medicine, Faculty of Medicine, Al-Baha University, AlBaha, Saudi Arabia
| | - Reda Mohamed Abdrabbou Fayyad
- Department of Pharmacology, Faculty of Medicine, Al-Azhar University, Cairo, Egypt
- Department of Pharmacology, General Medicine Practice Program, Batterjee Medical College, Aseer 61961, Saudi Arabia
| | - Mona S Ousman
- Emergency Medical Services, College of Applied Sciences, AlMaarefa University, P.O. Box 71666, Riyadh 11597, Saudi Arabia
| | - Ahmed M E Hamdan
- Department of Pharmacy Practice, Faculty of Pharmacy, University of Tabuk, Tabuk 71491, Saudi Arabia
| | - Sally A Fahim
- Department of Biochemistry, School of Pharmacy, Newgiza University (NGU), Newgiza, km 22 Cairo-Alexandria Desert Road, Giza, P.O. Box 12577, Egypt
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Fu X, Li X, Wang W, Li J. DPP3 promotes breast cancer tumorigenesis by stabilizing FASN and promoting lipid synthesis. Acta Biochim Biophys Sin (Shanghai) 2024; 56:805-818. [PMID: 38655619 PMCID: PMC11177116 DOI: 10.3724/abbs.2024054] [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: 01/17/2024] [Accepted: 02/29/2024] [Indexed: 04/26/2024] Open
Abstract
DPP3, a dipeptidyl peptidase, participates in a variety of pathophysiological processes. DPP3 is upregulated in cancer and might serve as a key factor in the tumorigenesis and progression of various malignancies. However, its specific role and molecular mechanism are still unknown. In this study, the expression of DPP3 in breast cancer tissues is analyzed using TCGA database. Kaplan-Meier survival analysis is performed to estimate the effect of DPP3 on the survival outcomes. To explore the biological function and mechanisms of DPP3 in breast cancer, biochemical and cell biology assays are conducted in vitro. DPP3 expresses at a higher level in breast cancer tissues than that in adjacent tissues in both TCGA database and clinical samples. Patients with high expression of DPP3 have poor survival outcomes. The proliferation and migration abilities of tumor cells with stable DPP3 knockout in breast cancer cell lines are significantly inhibited, and apoptosis is increased in vitro. GSEA analysis shows that DPP3 can affect lipid metabolism and fatty acid synthesis in tumors. Subsequent experiments show that DPP3 could stabilize FASN expression and thus promote fatty acid synthesis in tumor cells. The results of the metabolomic analysis also confirm that DPP3 can affect the content of free fatty acids. This study demonstrates that DPP3 plays a role in the reprogramming of fatty acid metabolism in tumors and is associated with poor prognosis in breast cancer patients. These findings will provide a new therapeutic target for the treatment of breast cancer.
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Affiliation(s)
- Xiaoyu Fu
- Department of Breast and Thyroid SurgeryRenmin Hospital of Wuhan UniversityWuhan430060China
- Department of General SurgeryRenmin Hospital of Wuhan UniversityWuhan430060China
| | - Xu Li
- Hubei Key Laboratory of Cell HomeostasisCollege of Life SciencesTaiKang Center for Life and Medical SciencesWuhan UniversityWuhan430072China
| | - Weixing Wang
- Department of General SurgeryRenmin Hospital of Wuhan UniversityWuhan430060China
| | - Juanjuan Li
- Department of Breast and Thyroid SurgeryRenmin Hospital of Wuhan UniversityWuhan430060China
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Khan S, Arshad S, Masood I, Arif A, Abbas S, Qureshi AW, Parveen A, Seemab Ameen Z. GC-MS Analysis of Persicaria bistorta: Uncovering the Molecular Basis of Its Traditional Medicinal Use. Appl Biochem Biotechnol 2024; 196:2270-2288. [PMID: 37515679 DOI: 10.1007/s12010-023-04580-0] [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] [Accepted: 05/24/2023] [Indexed: 07/31/2023]
Abstract
Persicaria bistorta is a perennial herb used traditionally in treating various ailments, including diarrhea, abdominal pain, and bleeding. In this study, we used gas chromatography-mass spectrometry (GC-MS) analysis to identify the chemical composition of Persicaria bistorta. The GC-MS analysis revealed the presence of several compounds, including flavonoids, tannins, saponins, and alkaloids. Among those, the most important from medicinal points of view are ethyl oleate (3%), cyclotetradecane (4.74%), dodecanoic acid (4.69%), hexadecanoic acid (5.61%), tetradecane (5.25%), cis-13-octadecenoic acid (10.91%), and bis(2-ethylhexyl) phthalate (32%). The GC-MS analysis of ethanolic fraction of Persicaria bistorta involved in antibacterial activity showed about 18 compounds. Among those, the most important from a medicinal and nutritional point of view are bis(2-ethylhexyl) phthalate (42.20%), 6-octadecenoic acid methyl ester, (Z)- (10.37%), ethyl oleate (6.84%), hexadecanoic acid methyl ester (6.67%), and methyl ester and oleic acid (5.27%). Reported biological antibacterial activity has shown that the main compound determined in both extracts was bis(2-ethylhexyl) phthalate, which has higher peak area percentage in ethanolic extract than in ethyl acetate fraction. Some oily compounds important for health because of their cis-conformation were also revealed in the given study like ethyl oleate and oleic acid. Overall, results suggest that Persicaria bistorta may have therapeutic potential and warrant further investigation. Further research is needed to confirm the efficacy and safety of Persicaria bistorta as a natural medicine and determine its active compounds' mechanisms of action.
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Affiliation(s)
- Sabir Khan
- Department of Basic and Applied Chemistry, Faculty of Science and Technology, University of Central Punjab, Lahore, Pakistan
| | - Shafia Arshad
- Faculty of Medicine and Allied Health Sciences, University College of Conventional Medicine, the Islamia University of Bahawalpur, Bahawalpur, Punjab, Pakistan.
| | - Imran Masood
- Department of Pharmacy Practice, Faculty of Pharmacy, the Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Amina Arif
- Department of Basic and Applied Chemistry, Faculty of Science and Technology, University of Central Punjab, Lahore, Pakistan
| | - Saba Abbas
- School of Medical Lab Technology, Minhaj University Lahore, Lahore, Pakistan
| | | | - Asia Parveen
- Department of Biochemistry, Faculty of Life Sciences, Gulab Devi Educational Complex, Ferozpur Road, Lahore, Pakistan
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Fahim SA, ElZohairy YA, Moustafa RI. Favipiravir, an antiviral drug, in combination with tamoxifen exerts synergistic effect in tamoxifen-resistant breast cancer cells via hTERT inhibition. Sci Rep 2024; 14:1844. [PMID: 38246945 PMCID: PMC10800350 DOI: 10.1038/s41598-024-51977-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: 05/08/2022] [Accepted: 01/10/2024] [Indexed: 01/23/2024] Open
Abstract
Tamoxifen (TAM) is one of the most successful treatments for breast cancer; however, TAM resistance continues to be a significant barrier. TAM resistance has been reported to be associated with increased expression of human telomerase reverse transcriptase (hTERT). This enzyme shares structural similarity with RNA-dependent RNA polymerase (RdRp) enzyme of RNA viruses, suggesting that RdRp inhibitors may also inhibit hTERT. Favipiravir (FAV) is an antiviral drug that inhibits RdRp of RNA viruses. Thus, we propose that FAV may also elicit an antitumor effect by suppressing hTERT. This study aimed to investigate the effect of FAV and TAM on TAM-resistant breast cancer (TAMR-1). The cell viabilities were determined. The levels of CDK1/ hTERT, in addition to regulators of hTERT-targeted signaling pathways were measured. Apoptosis, migration, and cell cycle distribution were also determined. Our data revealed that the combination of TAM and FAV suppressed cell proliferation synergistically (CI < 1) and resulted in a significant change in cell migration and apoptosis. Indeed, this was associated with reduced levels of hTERT and CDK1 and shift in the cell cycle distribution. Our findings suggest that the TAM/FAV combination exhibits synergistic effects against TAMR-1 human breast cancer cells by targeting hTERT.
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Affiliation(s)
- Sally A Fahim
- Department of Biochemistry, School of Pharmacy, Newgiza University (NGU), Newgiza, Km 22 Cairo-Alexandria Desert Road, 6th of October, P.O. Box 12577, Giza, Egypt.
| | - Yehia A ElZohairy
- School of Pharmacy, Newgiza University (NGU), Newgiza, Km 22 Cairo-Alexandria Desert Road, P.O. Box 12577, Giza, Egypt
| | - Rehab I Moustafa
- Microbial Biotechnology Department, Biotechnology Research Institute, National Research Centre, Dokki, Giza, Egypt
- Microbiology Department, School of Pharmacy, Newgiza University (NGU), Newgiza, Km 22 Cairo-Alexandria Desert Road, P.O. Box 12577, Giza, Egypt
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Ye L, Zhong F, Sun S, Ou X, Yuan J, Zhu J, Zeng Z. Tamoxifen induces ferroptosis in MCF-7 organoid. J Cancer Res Ther 2023; 19:1627-1635. [PMID: 38156931 DOI: 10.4103/jcrt.jcrt_608_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Accepted: 09/05/2023] [Indexed: 01/03/2024]
Abstract
BACKGROUND Breast cancer is the most common female malignant tumor type globally. The occurrence and development of breast cancer involve ferroptosis, which is closely related to its treatment. The development of breast cancer organoids facilitates the analysis of breast cancer molecular background and tumor biological behavior, including clinical pathological characteristics, drug response, or drug resistance relationship, and promotes the advancement of precision treatment for breast cancer. The three-dimensional (3D) cell culture of breast cancer MCF-7 organoid is more similar to the in vivo environment and thus obtains more realistic results than 2D cell culture. Our study examined the new mechanism of tamoxifen in treating breast cancer through breast cancer MCF-7 organoids. METHODS We used 3D cells to culture breast cancer MCF-7 organoid, as well as tamoxifen-treated MCF-7 and tamoxifen-resistant MCF-7 (MCF-7 TAMR) cells. We used transcriptome sequencing. We detected GPX4 and SLC7A11 protein levels using Western blotting and the content of ATP, glutathione, and ferrous ions using the Cell Counting Lite 3D Kit. We assessed cell viability using the Cell Counting Kit-8 (CCK-8) assay. RESULTS Tamoxifen significantly inhibited the growth of MCF-7 organoids and significantly induced ferroptosis in MCF-7 organoids. The ferroptosis inhibitor reversed the significant tamoxifen-induced MCF-7 organoid inhibition activity. Moreover, the ferroptosis activator enhanced the tamoxifen-induced MCF-7 TAMR cell activity inhibition. CONCLUSION Our study revealed that ferroptosis plays an important role in tamoxifen-induced MCF-7 organoid cell death and provides a new research idea for precise treatment of breast cancer through an organoid model.
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Affiliation(s)
- Lei Ye
- Foshan Clinical Medical School, Guangzhou University of Chinese Medicine, Foshan, China
| | - Fei Zhong
- Foshan Clinical Medical School, Guangzhou University of Chinese Medicine, Foshan, China
| | - Shishen Sun
- Foshan Clinical Medical School, Guangzhou University of Chinese Medicine, Foshan, China
| | - Xiaowei Ou
- Department of General Surgery, Foshan Fosun Chancheng Hospital, Foshan, China
| | - Jie Yuan
- Foshan Clinical Medical School, Guangzhou University of Chinese Medicine, Foshan, China
- Department of General Surgery, Foshan Fosun Chancheng Hospital, Foshan, China
| | - Jintao Zhu
- Department of Breast Surgery, Foshan Fosun Chancheng Hospital, Foshan, China
| | - Zhiqiang Zeng
- Foshan Clinical Medical School, Guangzhou University of Chinese Medicine, Foshan, China
- Department of Breast Surgery, Foshan Fosun Chancheng Hospital, Foshan, China
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7
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Venn-Watson S, Schork NJ. Pentadecanoic Acid (C15:0), an Essential Fatty Acid, Shares Clinically Relevant Cell-Based Activities with Leading Longevity-Enhancing Compounds. Nutrients 2023; 15:4607. [PMID: 37960259 PMCID: PMC10649853 DOI: 10.3390/nu15214607] [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: 10/08/2023] [Revised: 10/24/2023] [Accepted: 10/27/2023] [Indexed: 11/15/2023] Open
Abstract
Pentadecanoic acid (C15:0) is an essential odd-chain saturated fatty acid with broad activities relevant to protecting cardiometabolic, immune, and liver health. C15:0 activates AMPK and inhibits mTOR, both of which are core components of the human longevity pathway. To assess the potential for C15:0 to enhance processes associated with longevity and healthspan, we used human cell-based molecular phenotyping assays to compare C15:0 with three longevity-enhancing candidates: acarbose, metformin, and rapamycin. C15:0 (n = 36 activities in 10 of 12 cell systems) and rapamycin (n = 32 activities in 12 of 12 systems) had the most clinically relevant, dose-dependent activities. At their optimal doses, C15:0 (17 µM) and rapamycin (9 µM) shared 24 activities across 10 cell systems, including anti-inflammatory (e.g., lowered MCP-1, TNFα, IL-10, IL-17A/F), antifibrotic, and anticancer activities, which are further supported by previously published in vitro and in vivo studies. Paired with prior demonstrated abilities for C15:0 to target longevity pathways, hallmarks of aging, aging rate biomarkers, and core components of type 2 diabetes, heart disease, cancer, and nonalcoholic fatty liver disease, our results support C15:0 as an essential nutrient with activities equivalent to, or surpassing, leading longevity-enhancing candidate compounds.
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Affiliation(s)
- Stephanie Venn-Watson
- Epitracker Inc., San Diego, CA 92106, USA
- Seraphina Therapeutics, Inc., San Diego, CA 92106, USA;
| | - Nicholas J. Schork
- Seraphina Therapeutics, Inc., San Diego, CA 92106, USA;
- Translational Genomics Research Institute (TGen), City of Hope, Phoenix, AZ 85004, USA
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Mandal D, Sahu BR, Parija T. Combination of tamoxifen and D-limonene enhances therapeutic efficacy in breast cancer cells. Med Oncol 2023; 40:216. [PMID: 37391551 DOI: 10.1007/s12032-023-02081-y] [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: 04/06/2023] [Accepted: 06/10/2023] [Indexed: 07/02/2023]
Abstract
Breast cancer one of the most common diseases in women, has a high death and morbidity rate. Tamoxifen being very much effective in the chemoprevention of breast cancer has been shown to develop resistance during the course of treatment making it difficult for patient's survival. By combining tamoxifen with naturally occurring substances having similar activities, might control the toxicity and increase the susceptibility towards the treatment. As a natural compound, D-limonene has been reported to inhibit the growth of certain malignancies significantly. The main goal of our work is to investigate the combinatorial antitumor effects of D-limonene and tamoxifen in MCF-7 cells, as well as understand the potential underlying anticancer mechanism. MTT assays, colony formation assays, DAPI and Annexin V-FITC labeling, flow cytometer analysis, and western blot analysis were used to explore the details of anticancer mechanism. The combined effects of tamoxifen with D-limonene have shown significant decrease in the cell viability of MCF 7 cells. According to flow cytometer analyses and Annexin V/PI staining, D-limonene has been found to increase tamoxifen-mediated apoptosis as compared to the treatment alone in these cells. Additionally, cell growth has been found to be arrested at G1 phase by regulating cyclin D1 and cyclin B1. Our research consequently provided the first evidence that combining D-limonene and tamoxifen might increase the anticancer efficacy by inducing apoptosis in MCF 7 breast cancer cells. This combinatorial treatment strategy demands more research which might fulfill the need for improved treatment efficacy in controlling breast cancer.
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Affiliation(s)
- Deepa Mandal
- School of Biotechnology, KIIT Deemed to be University, Bhubaneswar, Odisha, 751024, India
| | - Bikash Ranjan Sahu
- School of Biotechnology, KIIT Deemed to be University, Bhubaneswar, Odisha, 751024, India
- Department of Zoology, Centurion University of Technology and Management, Bhubaneswar, India
| | - Tithi Parija
- School of Biotechnology, KIIT Deemed to be University, Bhubaneswar, Odisha, 751024, India.
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9
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Bishop CA, Machate T, Henkel J, Schulze MB, Klaus S, Piepelow K. Heptadecanoic Acid Is Not a Key Mediator in the Prevention of Diet-Induced Hepatic Steatosis and Insulin Resistance in Mice. Nutrients 2023; 15:2052. [PMID: 37432205 DOI: 10.3390/nu15092052] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 04/20/2023] [Accepted: 04/21/2023] [Indexed: 07/12/2023] Open
Abstract
Epidemiological studies found that the intake of dairy products is associated with an increased amount of circulating odd-chain fatty acids (OCFA, C15:0 and C17:0) in humans and further indicate that especially C17:0 is associated with a lower incidence of type 2 diabetes. However, causal relationships are not elucidated. To provide a mechanistic link, mice were fed high-fat (HF) diets supplemented with either milk fat or C17:0 for 20 weeks. Cultured primary mouse hepatocytes were used to distinguish differential effects mediated by C15:0 or C17:0. Despite an induction of OCFA after both dietary interventions, neither long-term milk fat intake nor C17:0 supplementation improved diet-induced hepatic lipid accumulation and insulin resistance in mice. HF feeding with milk fat actually deteriorates liver inflammation. Treatment of primary hepatocytes with C15:0 and C17:0 suppressed JAK2/STAT3 signaling, but only C15:0 enhanced insulin-stimulated phosphorylation of AKT. Overall, the data indicate that the intake of milk fat and C17:0 do not mediate health benefits, whereas C15:0 might be promising in further studies.
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Affiliation(s)
- Christopher A Bishop
- Department Physiology of Energy Metabolism, German Institute of Human Nutrition Potsdam-Rehbruecke (DIfE), 14558 Nuthetal, Germany
| | - Tina Machate
- Department Physiology of Energy Metabolism, German Institute of Human Nutrition Potsdam-Rehbruecke (DIfE), 14558 Nuthetal, Germany
| | - Janin Henkel
- Department of Nutritional Biochemistry, Faculty of Life Sciences: Food, Nutrition and Health, University of Bayreuth, 95326 Kulmbach, Germany
- Institute of Nutritional Science, University of Potsdam, 14469 Potsdam, Germany
| | - Matthias B Schulze
- Institute of Nutritional Science, University of Potsdam, 14469 Potsdam, Germany
- Department Molecular Epidemiology, German Institute of Human Nutrition Potsdam-Rehbruecke (DIfE), 14558 Nuthetal, Germany
| | - Susanne Klaus
- Department Physiology of Energy Metabolism, German Institute of Human Nutrition Potsdam-Rehbruecke (DIfE), 14558 Nuthetal, Germany
- Institute of Nutritional Science, University of Potsdam, 14469 Potsdam, Germany
| | - Karolin Piepelow
- Department Physiology of Energy Metabolism, German Institute of Human Nutrition Potsdam-Rehbruecke (DIfE), 14558 Nuthetal, Germany
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Keshawa Ediriweera M. Fatty acids as histone deacetylase inhibitors: old biochemistry tales in a new life sciences town. Drug Discov Today 2023; 28:103569. [PMID: 36990144 DOI: 10.1016/j.drudis.2023.103569] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 03/20/2023] [Accepted: 03/22/2023] [Indexed: 03/29/2023]
Abstract
Histone acetylation is a key epigenetic event. Although the keywords fatty acids, histones, and histone acetylation have a long history in biochemistry, these topics continue to attract much attention among researchers. The acetylation of histones is controlled by the activities of histone acetyltransferases (HATs) and histone deacetylases (HDACs). An imbalance in the activities of HATs and HDACs is common in a range of human cancers. Histone deacetylase inhibitors (HDACi) can restore dysregulated histone acetylation profiles in cancer cells and have been identified as promising anti-cancer therapeutics. Short-chain fatty acids mediate anti-cancer effects by inhibiting the activity of HDACs. Recent studies have identified odd-chain fatty acids as novel HDACi. This review summarizes recent findings regarding fatty acids as HDACi in cancer therapy. Teaser: Inhibition of histone deacetylase (HDAC) activity by fatty acids.
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