1
|
George Warren W, Osborn M, Yates A, O'Sullivan SE. The emerging role of fatty acid binding protein 7 (FABP7) in cancers. Drug Discov Today 2024; 29:103980. [PMID: 38614160 DOI: 10.1016/j.drudis.2024.103980] [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: 12/07/2023] [Revised: 03/27/2024] [Accepted: 04/05/2024] [Indexed: 04/15/2024]
Abstract
Fatty acid binding protein 7 (FABP7) is an intracellular protein involved in the uptake, transportation, metabolism, and storage of fatty acids (FAs). FABP7 is upregulated up to 20-fold in multiple cancers, usually correlated with poor prognosis. FABP7 silencing or pharmacological inhibition suggest FABP7 promotes cell growth, migration, invasion, colony and spheroid formation/increased size, lipid uptake, and lipid droplet formation. Xenograft studies show that suppression of FABP7 inhibits tumour formation and tumour growth, and improves host survival. The molecular mechanisms involve promotion of FA uptake, lipid droplets, signalling [focal adhesion kinase (FAK), proto-oncogene tyrosine-protein kinase Src (Src), mitogen-activated protein kinase kinase/p-extracellular signal-regulated kinase (MEK/ERK), and Wnt/β-catenin], hypoxia-inducible factor 1-alpha (Hif1α), vascular endothelial growth factor A/prolyl 4-hydroxylase subunit alpha-1 (VEGFA/P4HA1), snail family zinc finger 1 (Snail1), and twist-related protein 1 (Twist1). The oncogenic capacity of FABP7 makes it a promising pharmacological target for future cancer treatments.
Collapse
Affiliation(s)
| | - Myles Osborn
- Artelo Biosciences Limited, Alderley Park, Cheshire, UK
| | - Andrew Yates
- Artelo Biosciences Limited, Alderley Park, Cheshire, UK
| | | |
Collapse
|
2
|
Yang K, Liu Y, Zhang M. The Diverse Roles of Reactive Astrocytes in the Pathogenesis of Amyotrophic Lateral Sclerosis. Brain Sci 2024; 14:158. [PMID: 38391732 PMCID: PMC10886687 DOI: 10.3390/brainsci14020158] [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: 12/21/2023] [Revised: 01/17/2024] [Accepted: 01/29/2024] [Indexed: 02/24/2024] Open
Abstract
Astrocytes displaying reactive phenotypes are characterized by their ability to remodel morphologically, molecularly, and functionally in response to pathological stimuli. This process results in the loss of their typical astrocyte functions and the acquisition of neurotoxic or neuroprotective roles. A growing body of research indicates that these reactive astrocytes play a pivotal role in the pathogenesis of amyotrophic lateral sclerosis (ALS), involving calcium homeostasis imbalance, mitochondrial dysfunction, abnormal lipid and lactate metabolism, glutamate excitotoxicity, etc. This review summarizes the characteristics of reactive astrocytes, their role in the pathogenesis of ALS, and recent advancements in astrocyte-targeting strategies.
Collapse
Affiliation(s)
- Kangqin Yang
- Department of Neurology and Psychiatry, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Yang Liu
- Department of Neurology and Psychiatry, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Min Zhang
- Department of Neurology and Psychiatry, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
- Hubei Key Laboratory of Neural Injury and Functional Reconstruction, Huazhong University of Science and Technology, Wuhan 430030, China
| |
Collapse
|
3
|
Gerstner JR, Flores CC, Lefton M, Rogers B, Davis CJ. FABP7: a glial integrator of sleep, circadian rhythms, plasticity, and metabolic function. Front Syst Neurosci 2023; 17:1212213. [PMID: 37404868 PMCID: PMC10315501 DOI: 10.3389/fnsys.2023.1212213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 06/02/2023] [Indexed: 07/06/2023] Open
Abstract
Sleep and circadian rhythms are observed broadly throughout animal phyla and influence neural plasticity and cognitive function. However, the few phylogenetically conserved cellular and molecular pathways that are implicated in these processes are largely focused on neuronal cells. Research on these topics has traditionally segregated sleep homeostatic behavior from circadian rest-activity rhythms. Here we posit an alternative perspective, whereby mechanisms underlying the integration of sleep and circadian rhythms that affect behavioral state, plasticity, and cognition reside within glial cells. The brain-type fatty acid binding protein, FABP7, is part of a larger family of lipid chaperone proteins that regulate the subcellular trafficking of fatty acids for a wide range of cellular functions, including gene expression, growth, survival, inflammation, and metabolism. FABP7 is enriched in glial cells of the central nervous system and has been shown to be a clock-controlled gene implicated in sleep/wake regulation and cognitive processing. FABP7 is known to affect gene transcription, cellular outgrowth, and its subcellular localization in the fine perisynaptic astrocytic processes (PAPs) varies based on time-of-day. Future studies determining the effects of FABP7 on behavioral state- and circadian-dependent plasticity and cognitive processes, in addition to functional consequences on cellular and molecular mechanisms related to neural-glial interactions, lipid storage, and blood brain barrier integrity will be important for our knowledge of basic sleep function. Given the comorbidity of sleep disturbance with neurological disorders, these studies will also be important for our understanding of the etiology and pathophysiology of how these diseases affect or are affected by sleep.
Collapse
Affiliation(s)
- Jason R. Gerstner
- Department of Translational Medicine and Physiology, Elson S. Floyd College of Medicine, Washington State University, Spokane, WA, United States
- Steve Gleason Institute for Neuroscience, Spokane, WA, United States
- Sleep and Performance Research Center, Elson S. Floyd College of Medicine, Washington State University, Spokane, WA, United States
| | - Carlos C. Flores
- Department of Translational Medicine and Physiology, Elson S. Floyd College of Medicine, Washington State University, Spokane, WA, United States
| | - Micah Lefton
- Department of Translational Medicine and Physiology, Elson S. Floyd College of Medicine, Washington State University, Spokane, WA, United States
| | - Brooke Rogers
- Department of Translational Medicine and Physiology, Elson S. Floyd College of Medicine, Washington State University, Spokane, WA, United States
| | - Christopher J. Davis
- Department of Translational Medicine and Physiology, Elson S. Floyd College of Medicine, Washington State University, Spokane, WA, United States
- Steve Gleason Institute for Neuroscience, Spokane, WA, United States
- Sleep and Performance Research Center, Elson S. Floyd College of Medicine, Washington State University, Spokane, WA, United States
| |
Collapse
|
4
|
Maruyama T, Tanabe S, Uyeda A, Suzuki T, Muramatsu R. Free fatty acids support oligodendrocyte survival in a mouse model of amyotrophic lateral sclerosis. Front Cell Neurosci 2023; 17:1081190. [PMID: 37252191 PMCID: PMC10213402 DOI: 10.3389/fncel.2023.1081190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Accepted: 04/24/2023] [Indexed: 05/31/2023] Open
Abstract
Introduction Amyotrophic lateral sclerosis (ALS) is a fatal neurodegenerative disease characterized by the white matter degeneration. Although changes in blood lipids are involved in the pathogenesis of neurological diseases, the pathological role of blood lipids in ALS remains unclear. Methods and results We performed lipidome analysis on the plasma of ALS model mice, mutant superoxide dismutase 1 (SOD1G93A) mice, and found that the concentration of free fatty acids (FFAs), including oleic acid (OA) and linoleic acid (LA), decreased prior to disease onset. An in vitro study revealed that OA and LA directly inhibited glutamate-induced oligodendrocytes cell death via free fatty acid receptor 1 (FFAR1). A cocktail containing OA/LA suppressed oligodendrocyte cell death in the spinal cord of SOD1G93A mice. Discussion These results suggested that the reduction of FFAs in the plasma is a pathogenic biomarker for ALS in the early stages, and supplying a deficiency in FFAs is a potential therapeutic approach for ALS by preventing oligodendrocyte cell death.
Collapse
Affiliation(s)
- Takashi Maruyama
- Department of Molecular Pharmacology, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo, Japan
- Department of Pharmacoscience, Graduate School of Pharmaceutical Sciences, Tokyo University of Science, Chiba, Japan
| | - Shogo Tanabe
- Department of Molecular Pharmacology, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Akiko Uyeda
- Department of Molecular Pharmacology, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Tatsunori Suzuki
- Department of Pharmacoscience, Graduate School of Pharmaceutical Sciences, Tokyo University of Science, Chiba, Japan
- Department of Pharmaceutical Sciences, Graduate School of Pharmaceutical Sciences, Tokyo University of Science, Chiba, Japan
| | - Rieko Muramatsu
- Department of Molecular Pharmacology, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo, Japan
| |
Collapse
|
5
|
Gong Q, Zeng Z, Jiang T, Bai X, Pu C, Hao Y, Guo Y. Anti-fibrotic effect of extracellular vesicles derived from tea leaves in hepatic stellate cells and liver fibrosis mice. Front Nutr 2022; 9:1009139. [PMID: 36276815 PMCID: PMC9582986 DOI: 10.3389/fnut.2022.1009139] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Accepted: 09/16/2022] [Indexed: 01/30/2023] Open
Abstract
Background Activation of hepatic stellate cells (HSCs) is essential for the pathogenesis of liver fibrosis, there is no effective drug used to prevent or reverse the fibrotic process. Methods With human hepatic stellate cell line LX-2 and mouse model of CCl4-induced liver fibrosis, we investigated the anti-fibrotic effect to liver fibrosis of extracellular vesicles (EVs) extracted from tea leaves through cytological tests such as cell proliferation, cell migration, and cell fibrotic marker. Results It was found that tea-derived EVs (TEVs) inhibited HSCs activation. In CCl4-induced liver fibrosis model, TEVs treatment can significantly improve the pathological changes of liver tissue, inhibit collagen deposition, reduce the number of lipid droplets in liver tissue, and reduce serum AST and ALT levels. In addition, TEVs inhibited TGF-β1 signaling and miR-44 in TEVs had the potential inhibitory effect on liver fibrosis. Conclusions Taken together, our work suggesting that TEVs are novel therapeutic potential for liver fibrosis.
Collapse
Affiliation(s)
- Qianyuan Gong
- Medical Research Center, The Third People's Hospital of Chengdu, The Affiliated Hospital of Southwest Jiaotong University, Chengdu, China
| | - Zhaoyu Zeng
- Medical Research Center, The Third People's Hospital of Chengdu, The Affiliated Hospital of Southwest Jiaotong University, Chengdu, China
| | - Tao Jiang
- Department of Clinical Laboratory, The Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Xue Bai
- Department of Cardiology, The Third People's Hospital of Chengdu, The Affiliated Hospital of Southwest Jiaotong University, Chengdu, China
| | - Chunlan Pu
- Medical Research Center, The Third People's Hospital of Chengdu, The Affiliated Hospital of Southwest Jiaotong University, Chengdu, China
| | - Yaying Hao
- Medical Research Center, The Third People's Hospital of Chengdu, The Affiliated Hospital of Southwest Jiaotong University, Chengdu, China
| | - Yuanbiao Guo
- Medical Research Center, The Third People's Hospital of Chengdu, The Affiliated Hospital of Southwest Jiaotong University, Chengdu, China,*Correspondence: Yuanbiao Guo
| |
Collapse
|
6
|
Nowowiejska J, Baran A, Flisiak I. Fatty Acid-Binding Proteins in Psoriasis-A Review. Metabolites 2022; 12:metabo12090833. [PMID: 36144237 PMCID: PMC9500650 DOI: 10.3390/metabo12090833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 08/29/2022] [Accepted: 08/31/2022] [Indexed: 11/16/2022] Open
Abstract
Psoriasis is one of the most common skin diseases in dermatological practice. It affects about 1–3% of the general population and is associated with different comorbidities, especially metabolic syndrome. Fatty-acid-binding proteins (FABPs) are a family of cytosolic proteins which are an important link in lipid metabolism and transport; moreover, they have different tissue specificity and properties. So far, ten FABPs have been discovered and seven have been investigated in psoriasis. In this review, we discuss the nature of all FABPs and their role in psoriasis. FABPs have different organ and tissue expression, and hence various functions, and may be markers of different disorders. Considering the concentration of a few of them tends to be elevated in psoriasis, it confirms the current perception of psoriasis as a multiorgan disorder associated with plenty of comorbidities. Some FABPs may be also further investigated as biomarkers of psoriasis organ complications. FABP-1 and FABP-5 may become potential markers of metabolic complications and inflammation in psoriasis. FABP-7 could perhaps be further investigated as an indicator of the neurodegenerative processes in psoriatic patients.
Collapse
|
7
|
Luo Z, Wang Y, Pang S, Gao S, Liu N, Gao X, Zhang L, Qi X, Yang Y, Zhang L. Synthesis and Bioactivity Evaluation of a Novel 1,2,4-Oxadiazole Derivative in vitro and in 3×Tg Mice. Drug Des Devel Ther 2022; 16:3285-3296. [PMID: 36187086 PMCID: PMC9521684 DOI: 10.2147/dddt.s372750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2022] [Accepted: 08/22/2022] [Indexed: 11/30/2022] Open
Abstract
Aim Alzheimer’s disease (AD) is the most common neurodegenerative disease whose patients suffered from cognitive impairments. In our study, a novel 1,2,4-Oxadiazole derivative wyc-7-20 was synthesized, which showed low cytotoxicity and potent neuroprotective effect at the cellular level. Improved cognitive impairments, β-amyloid (Aβ) clearance, and tau pathological phenotypes were detected in transgenic animal models after wyc-7-20 treatment. Reversed expressions in AD-related genes were also detected. The results demonstrated wyc-7-20 was potent in AD therapy. Purpose The pathological complexity of AD increased difficulties in medical research. To explore a new potential medical treatment for AD, a novel 1,2,4-Oxadiazole derivative (wyc-7-20) was designed, synthesized to explore the application in this study. Materials and Methods Human neuroblastoma (SH-SY5Y) cells and human hepatocellular carcinoma (HepG2) cells were used to detect median lethal dose (LD50). H2O2 and Aβ1–42 oligomers (AβOs) were respectively, added into SH-SY5Y cells to detect anti-ROS (reactive oxygen species) and anti-AβOs effects of wyc-7-20. 3×Tg mice were administered with wyc-7-20, and then Y maze test and Morris water maze (MWM) test were applied to detect cognitive improvements. Brain tissue samples were subsequently collected and analyzed using different techniques. Results wyc-7-20 showed low cytotoxicity and potent neuroprotective effect at the cellular level. Improved cognitive impairments, Aβ clearance, and tau pathological phenotypes were detected in transgenic animal models after wyc-7-20 treatment. Reversed expressions in AD-related genes were also detected. Conclusion wyc-7-20 was potent in AD therapy.
Collapse
Affiliation(s)
- Zhuohui Luo
- Key Laboratory of Human Disease Comparative Medicine, National Health Commission of China (NHC), Institute of Laboratory Animal Science, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, 100021, People’s Republic of China
| | - Yongcheng Wang
- Beijing Key Laboratory of Active Substance Discovery and Drug Ability Evaluation, Institute of Material Medical, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, 100050, People’s Republic of China
| | - Shuo Pang
- Key Laboratory of Human Disease Comparative Medicine, National Health Commission of China (NHC), Institute of Laboratory Animal Science, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, 100021, People’s Republic of China
| | - Shan Gao
- Key Laboratory of Human Disease Comparative Medicine, National Health Commission of China (NHC), Institute of Laboratory Animal Science, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, 100021, People’s Republic of China
| | - Ning Liu
- Key Laboratory of Human Disease Comparative Medicine, National Health Commission of China (NHC), Institute of Laboratory Animal Science, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, 100021, People’s Republic of China
| | - Xiang Gao
- Key Laboratory of Human Disease Comparative Medicine, National Health Commission of China (NHC), Institute of Laboratory Animal Science, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, 100021, People’s Republic of China
| | - Li Zhang
- Key Laboratory of Human Disease Comparative Medicine, National Health Commission of China (NHC), Institute of Laboratory Animal Science, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, 100021, People’s Republic of China
- Neuroscience Center, Chinese Academy of Medical Sciences, Beijing, 100730, People’s Republic of China
| | - Xiaolong Qi
- Key Laboratory of Human Disease Comparative Medicine, National Health Commission of China (NHC), Institute of Laboratory Animal Science, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, 100021, People’s Republic of China
- Neuroscience Center, Chinese Academy of Medical Sciences, Beijing, 100730, People’s Republic of China
| | - Yajun Yang
- Beijing Key Laboratory of Active Substance Discovery and Drug Ability Evaluation, Institute of Material Medical, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, 100050, People’s Republic of China
- Correspondence: Yajun Yang, Institute of Material Medical, Peking Union Medical College, Chinese Academy of Medical Sciences, Nanwei Road, Xicheng District, Beijing, 100050, People’s Republic of China, Email
| | - Lianfeng Zhang
- Key Laboratory of Human Disease Comparative Medicine, National Health Commission of China (NHC), Institute of Laboratory Animal Science, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, 100021, People’s Republic of China
- Neuroscience Center, Chinese Academy of Medical Sciences, Beijing, 100730, People’s Republic of China
- Lianfeng Zhang, Institute of Laboratory Animal Science, Peking Union Medical College, Chinese Academy of Medical Sciences, Panjiayuan Nanli, Chaoyang District, Beijing, 100021, People’s Republic of China, Tel +86 10-87778442, Fax +86 10-67776394, Email
| |
Collapse
|
8
|
Xiong XY, Tang Y, Yang QW. Metabolic changes favor the activity and heterogeneity of reactive astrocytes. Trends Endocrinol Metab 2022; 33:390-400. [PMID: 35396164 DOI: 10.1016/j.tem.2022.03.001] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 02/27/2022] [Accepted: 03/10/2022] [Indexed: 12/20/2022]
Abstract
Reactive astrocytes undergo morphological, molecular, metabolic, and functional remodeling in response to central nervous system (CNS) damage. However, we still know very little about how the metabolic switching of astrocytes influences, or is influenced by, reactive astrocytes in response to neurological diseases. In this review, we initially cover a brief introduction into reactive astrocyte function under pathological conditions. Subsequently, we summarize the emerging roles of glucose and lipid metabolism in reactive astrocytes in the context of CNS injury to provide a new insight into metabolic mechanisms of reactive astrocyte-mediated neuroprotection or damage. Finally, we propose that deciphering the mechanistic link between astrocyte heterogeneity metabolism and improved methods is an emerging frontier for the therapeutic investigation of CNS injury and disease.
Collapse
Affiliation(s)
- Xiao-Yi Xiong
- School of Acupuncture and Tuina, Chengdu University of Traditional Chinese Medicine, Chengdu, China; International Collaborative Centre on Big Science Plan for Purinergic Signaling, Chengdu, China; Acupuncture & Chronobiology Key Laboratory of Sichuan Province, Chengdu, China.
| | - Yong Tang
- School of Acupuncture and Tuina, Chengdu University of Traditional Chinese Medicine, Chengdu, China; International Collaborative Centre on Big Science Plan for Purinergic Signaling, Chengdu, China; Acupuncture & Chronobiology Key Laboratory of Sichuan Province, Chengdu, China
| | - Qing-Wu Yang
- Department of Neurology, Xinqiao Hospital, The Army Medical University (Third Military Medical University), Chongqing, China; Chongqing Institute for Brain and Intelligence, Guangyang Bay Laboratory, Chongqing 400064, China.
| |
Collapse
|
9
|
Nowowiejska J, Baran A, Hermanowicz JM, Sieklucka B, Krahel JA, Kiluk P, Pawlak D, Flisiak I. Fatty Acid-Binding Protein 7 (FABP-7), Glutamic Acid and Neurofilament Light Chain (NFL) as Potential Markers of Neurodegenerative Disorders in Psoriatic Patients-A Pilot Study. J Clin Med 2022; 11:jcm11092430. [PMID: 35566558 PMCID: PMC9105148 DOI: 10.3390/jcm11092430] [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: 03/08/2022] [Revised: 04/25/2022] [Accepted: 04/25/2022] [Indexed: 12/12/2022] Open
Abstract
Psoriasis and neurodegenerative diseases (NDs) are important medical, social and economic issues. The possible relationship of psoriasis and NDs has not been established yet. This study involved 60 patients with plaque-type psoriasis. Serum concentrations of fatty acid-binding protein 7 (FABP-7), glutamic acid (GA) and neurofilament light chain (NFL), which have been hardly studied in psoriasis before, were measured by ELISA before and after 12 weeks of treatment with acitretin or methotrexate. The concentration of FABP-7 and NFL in patients before the treatment was significantly higher than in the controls (p < 0.01, p < 0.001, respectively). After the treatment their concentration decreased, although FABP-7 did so insignificantly. The concentration of GA did not differ significantly between patients and controls and before and after the treatment but we found its negative correlation with CRP (p < 0.05). The duration of psoriasis does not seem to directly affect the risk of neurodegeneration and the severity only in patients with worse skin condition. Elevated FABP-7 and NFL, which are present in the brain, may be considered as potential indicators of NDs development in psoriatics, although it surely requires further research. GA might correspond with neuroinflammation in psoriasis. Systemic antipsoriatic therapy could be studied in order to improve cognitive impairment through lowering NDs biomarkers in some cases.
Collapse
Affiliation(s)
- Julia Nowowiejska
- Department of Dermatology and Venereology, Medical University of Bialystok, Zurawia 14 St., 15-540 Bialystok, Poland; (A.B.); (J.A.K.); (P.K.); (I.F.)
- Correspondence:
| | - Anna Baran
- Department of Dermatology and Venereology, Medical University of Bialystok, Zurawia 14 St., 15-540 Bialystok, Poland; (A.B.); (J.A.K.); (P.K.); (I.F.)
| | - Justyna Magdalena Hermanowicz
- Department of Pharmacodynamics, Medical University of Bialystok, Mickiewicza 2C St., 15-540 Bialystok, Poland; (J.M.H.); (B.S.); (D.P.)
| | - Beata Sieklucka
- Department of Pharmacodynamics, Medical University of Bialystok, Mickiewicza 2C St., 15-540 Bialystok, Poland; (J.M.H.); (B.S.); (D.P.)
| | - Julita Anna Krahel
- Department of Dermatology and Venereology, Medical University of Bialystok, Zurawia 14 St., 15-540 Bialystok, Poland; (A.B.); (J.A.K.); (P.K.); (I.F.)
| | - Paulina Kiluk
- Department of Dermatology and Venereology, Medical University of Bialystok, Zurawia 14 St., 15-540 Bialystok, Poland; (A.B.); (J.A.K.); (P.K.); (I.F.)
| | - Dariusz Pawlak
- Department of Pharmacodynamics, Medical University of Bialystok, Mickiewicza 2C St., 15-540 Bialystok, Poland; (J.M.H.); (B.S.); (D.P.)
| | - Iwona Flisiak
- Department of Dermatology and Venereology, Medical University of Bialystok, Zurawia 14 St., 15-540 Bialystok, Poland; (A.B.); (J.A.K.); (P.K.); (I.F.)
| |
Collapse
|
10
|
Kagawa Y, Umaru BA, Kanamori M, Zama R, Shil SK, Miyazaki H, Kobayashi S, Wannakul T, Yang S, Tominaga T, Owada Y. Nuclear FABP7 regulates cell proliferation of wild-type IDH1 glioma through caveolae formation. Mol Oncol 2021; 16:289-306. [PMID: 34716958 PMCID: PMC8732344 DOI: 10.1002/1878-0261.13130] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 10/15/2021] [Accepted: 10/28/2021] [Indexed: 12/15/2022] Open
Abstract
Isocitrate dehydrogenase 1 (IDH1) is a key enzyme in cellular metabolism. IDH1 mutation (IDH1mut) is the most important genetic alteration in lower grade glioma, whereas glioblastoma (GB), the most common malignant brain tumor, often has wild‐type IDH1 (IDH1wt). Although there is no effective treatment yet for neither IDH1wt nor IDHmut GB, it is important to note that the survival span of IDH1wt GB patients is significantly shorter than those with IDH1mut GB. Thus, understanding IDH1wt GB biology and developing effective molecular‐targeted therapies is of paramount importance. Fatty acid‐binding protein 7 (FABP7) is highly expressed in GB, and its expression level is negatively correlated with survival in malignant glioma patients; however, the underlying mechanisms of FABP7 involvement in tumor proliferation are still unknown. In this study, we demonstrate that FABP7 is highly expressed and localized in nuclei in IDH1wt glioma. Wild‐type FABP7 (FABP7wt) overexpression in IDH1wt U87 cells increased cell proliferation rate, caveolin‐1 expression, and caveolae/caveosome formation. In addition, FABP7wt overexpression increased the levels of H3K27ac on the caveolin‐1 promoter through controlling the nuclear acetyl‐CoA level via the interaction with ACLY. Consistent results were obtained using a xenograft model transplanted with U87 cells overexpressing FABP7. Interestingly, in U87 cells with mutant FABP7 overexpression, both in vitro and in vivo phenotypes shown by FABP7wt overexpression were disrupted. Furthermore, IDH1wt patient GB showed upregulated caveolin‐1 expression, increased levels of histone acetylation, and increased levels of acetyl‐CoA compared with IDH1mut patient GB. Taken together, these data suggest that nuclear FABP7 is involved in cell proliferation of GB through caveolae function/formation regulated via epigenetic regulation of caveolin‐1, and this mechanism is critically important for IDH1wt tumor biology.
Collapse
Affiliation(s)
- Yoshiteru Kagawa
- Department of Organ Anatomy, Tohoku University Graduate School of Medicine, Sendai, Japan
| | | | - Masayuki Kanamori
- Department of Neurosurgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Ryo Zama
- Department of Organ Anatomy, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Subrata Kumar Shil
- Department of Organ Anatomy, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Hirofumi Miyazaki
- Department of Organ Anatomy, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Shuhei Kobayashi
- Department of Organ Anatomy, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Tunyanat Wannakul
- Department of Organ Anatomy, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Shuhan Yang
- Department of Organ Anatomy, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Teiji Tominaga
- Department of Neurosurgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Yuji Owada
- Department of Organ Anatomy, Tohoku University Graduate School of Medicine, Sendai, Japan
| |
Collapse
|
11
|
Ligand Bound Fatty Acid Binding Protein 7 (FABP7) Drives Melanoma Cell Proliferation Via Modulation of Wnt/β-Catenin Signaling. Pharm Res 2021; 38:479-490. [PMID: 33646504 DOI: 10.1007/s11095-021-03009-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Accepted: 01/19/2021] [Indexed: 10/22/2022]
Abstract
PURPOSE Fatty acid-binding protein 7 (FABP7) involved in intracellular lipid dynamics, is highly expressed in melanomas and associated with decreased patient survival. Several studies put FABP7 at the center of melanoma cell proliferation. However, the underlying mechanisms are not well deciphered. This study examines the effects of FABP7 on Wnt/β-catenin signaling that enhances proliferation in melanoma cells. METHODS Skmel23 cells with FABP7 silencing and Mel2 cells overexpressed with wild-type FABP7 (FABP7wt) and mutated FABP7 (FABP7mut) were used. Cell proliferation and migration were analyzed by proliferation and wound-healing assay, respectively. Transcriptional activation of the Wnt/β-catenin signaling was measured by luciferase reporter assay. The effects of a specific FABP7 inhibitor, MF6, on proliferation, migration, and modulation of the Wnt/β-catenin signaling were examined. RESULTS FABP7 siRNA knockdown in Skmel23 decreased proliferation and migration, cyclin D1 expression, as well as Wnt/β-catenin activity. Similarly, FABP7wt overexpression in Mel2 cells increased these effects, but FABP7mut abrogated these effects. Pharmacological inhibition of FABP7 function with MF6 suppressed FABP7-regulated proliferation of melanoma cells. CONCLUSION These results suggest the importance of the interaction between FABP7 and its ligands in melanoma proliferation modulation, and the beneficial implications of therapeutic targeting of FABP7 for melanoma treatment.
Collapse
|