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Lu YA, McCann MG, Hu WS, Zhang Q. Multi-cell-line learning for the data-driven construction of mechanistic metabolic models. Biotechnol Bioeng 2024; 121:2833-2847. [PMID: 38831695 DOI: 10.1002/bit.28757] [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: 11/19/2023] [Revised: 04/25/2024] [Accepted: 05/19/2024] [Indexed: 06/05/2024]
Abstract
Mammalian cells are commonly used as hosts in cell culture for biologics production in the pharmaceutical industry. Structured mechanistic models of metabolism have been used to capture complex cellular mechanisms that contribute to varying metabolic shifts in different cell lines. However, little research has focused on the impact of temporal changes in enzyme abundance and activity on the modeling of cell metabolism. In this work, we present a framework for constructing mechanistic models of metabolism that integrate growth-signaling control of enzyme activity and transcript dynamics. The proposed approach is applied to build models for three Chinese hamster ovary (CHO) cell lines using fed-batch culture data and time-series transcript profiles. Leveraging information from the transcriptome data, we develop a parameter estimation approach based on multi-cell-line (MCL) learning, which combines data sets from different cell lines and trains the individual cell-line models jointly to improve model accuracy. The computational results demonstrate the important role of growth signaling and transcript variability in metabolic models as well as the virtue of the MCL approach for constructing cell-line models with a limited amount of data. The resulting models exhibit a high level of accuracy in predicting distinct metabolic behaviors in the different cell lines; these models can potentially be used to accelerate the process and cell-line development for the biomanufacturing of new protein therapeutics.
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Affiliation(s)
- Yen-An Lu
- Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, Minnesota, USA
| | - Meghan G McCann
- Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, Minnesota, USA
| | - Wei-Shou Hu
- Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, Minnesota, USA
| | - Qi Zhang
- Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, Minnesota, USA
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2
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Fontana F, Giannitti G, Marchesi S, Limonta P. The PI3K/Akt Pathway and Glucose Metabolism: A Dangerous Liaison in Cancer. Int J Biol Sci 2024; 20:3113-3125. [PMID: 38904014 PMCID: PMC11186371 DOI: 10.7150/ijbs.89942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 04/11/2024] [Indexed: 06/22/2024] Open
Abstract
Aberrant activation of the PI3K/Akt pathway commonly occurs in cancers and correlates with multiple aspects of malignant progression. In particular, recent evidence suggests that the PI3K/Akt signaling plays a fundamental role in promoting the so-called aerobic glycolysis or Warburg effect, by phosphorylating different nutrient transporters and metabolic enzymes, such as GLUT1, HK2, PFKB3/4 and PKM2, and by regulating various molecular networks and proteins, including mTORC1, GSK3, FOXO transcription factors, MYC and HIF-1α. This leads to a profound reprogramming of cancer metabolism, also impacting on pentose phosphate pathway, mitochondrial oxidative phosphorylation, de novo lipid synthesis and redox homeostasis and thereby allowing the fulfillment of both the catabolic and anabolic demands of tumor cells. The present review discusses the interactions between the PI3K/Akt cascade and its metabolic targets, focusing on their possible therapeutic implications.
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Affiliation(s)
- Fabrizio Fontana
- Department of Pharmacological and Biomolecular Sciences "Rodolfo Paoletti", Università degli Studi di Milano, Milan, Italy
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3
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Li M, Wu X, Pan Y, Song M, Yang X, Xu J, Plikus MV, Lv C, Yu L, Yu Z. mTORC2-AKT signaling to PFKFB2 activates glycolysis that enhances stemness and tumorigenicity of intestinal epithelial cells. FASEB J 2024; 38:e23532. [PMID: 38451470 DOI: 10.1096/fj.202301833rr] [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: 09/08/2023] [Revised: 01/31/2024] [Accepted: 02/19/2024] [Indexed: 03/08/2024]
Abstract
Although elevated glycolysis has been widely recognized as a hallmark for highly proliferating cells like stem cells and cancer, its regulatory mechanisms are still being updated. Here, we found a previously unappreciated mechanism of mammalian target of rapamycin complex 2 (mTORC2) in regulating glycolysis in intestinal stem cell maintenance and cancer progression. mTORC2 key subunits expression levels and its kinase activity were specifically upregulated in intestinal stem cells, mouse intestinal tumors, and human colorectal cancer (CRC) tissues. Genetic ablation of its key scaffolding protein Rictor in both mouse models and cell lines revealed that mTORC2 played an important role in promoting intestinal stem cell proliferation and self-renewal. Moreover, utilizing mouse models and organoid culture, mTORC2 loss of function was shown to impair growth of gut adenoma and tumor organoids. Based on these findings, we performed RNA-seq and noticed significant metabolic reprogramming in Rictor conditional knockout mice. Among all the pathways, carbohydrate metabolism was most profoundly altered, and further studies demonstrated that mTORC2 promoted glycolysis in intestinal epithelial cells. Most importantly, we showed that a rate-limiting enzyme in regulating glycolysis, 6-phosphofructo-2-kinase (PFKFB2), was a direct target for the mTORC2-AKT signaling. PFKFB2 was phosphorylated upon mTORC2 activation, but not mTORC1, and this process was AKT-dependent. Together, this study has identified a novel mechanism underlying mTORC2 activated glycolysis, offering potential therapeutic targets for treating CRC.
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Affiliation(s)
- Mengzhen Li
- Tianjian Laboratory of Advanced Biomedical Sciences, Academy of Medical Sciences, Zhengzhou University, Zhengzhou, Henan, China
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Xi Wu
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Yuwei Pan
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Manyu Song
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Xu Yang
- Tianjian Laboratory of Advanced Biomedical Sciences, Academy of Medical Sciences, Zhengzhou University, Zhengzhou, Henan, China
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Jiuzhi Xu
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Maksim V Plikus
- Department of Developmental and Cell Biology, Sue and Bill Gross Stem Cell Research Center, Center for Complex Biological Systems, University of California, Irvine, Irvine, California, USA
| | - Cong Lv
- Key Laboratory of Precision Nutrition and Food Quality, Ministry of Education, Department of Nutrition and Health, China Agricultural University, Beijing, China
| | - Lu Yu
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Zhengquan Yu
- Tianjian Laboratory of Advanced Biomedical Sciences, Academy of Medical Sciences, Zhengzhou University, Zhengzhou, Henan, China
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing, China
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4
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Park SH, Kim G, Yang GE, Yun HJ, Shin TH, Kim ST, Lee K, Kim HS, Kim SH, Leem SH, Cho WS, Lee JH. Disruption of phosphofructokinase activity and aerobic glycolysis in human bronchial epithelial cells by atmospheric ultrafine particulate matter. JOURNAL OF HAZARDOUS MATERIALS 2024; 464:132966. [PMID: 37976851 DOI: 10.1016/j.jhazmat.2023.132966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 10/28/2023] [Accepted: 11/07/2023] [Indexed: 11/19/2023]
Abstract
Exposure to ambient ultrafine particulate matter (UPM) causes respiratory disorders; however, the underlying molecular mechanisms remain unclear. In this study, we synthesized simulated UPM (sUPM) with controlled physicochemical properties using the spark-discharge method. Subsequently, we investigated the biological effects of sUPM using BEAS-2B human bronchial epithelial cells (HBECs) and a mouse intratracheal instillation model. High throughput RNA-sequencing and bioinformatics analyses revealed that dysregulation of the glycolytic metabolism is involved in the inhibited proliferation and survival of HBECs by sUPM treatment. Furthermore, signaling pathway and enzymatic analyses showed that the treatment of BEAS-2B cells with sUPM induces the inactivation of extracellular signal-regulated kinase (ERK) and protein kinase B (PKB, also known as AKT), resulting in the downregulation of phosphofructokinase 2 (PFK2) S483 phosphorylation, PFK enzyme activity, and aerobic glycolysis in HBECs in an oxidative stress-independent manner. Additionally, intratracheal instillation of sUPM reduced the phosphorylation of ERK, AKT, and PFK2, decreased proliferation, and increased the apoptosis of bronchial epithelial cells in mice. The findings of this study imply that UPM induces pulmonary toxicity by disrupting aerobic glycolytic metabolism in lung epithelial cells, which can provide novel insights into the toxicity mechanisms of UPM and strategies to prevent their toxic effects.
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Affiliation(s)
- Su Hwan Park
- Department of Health Sciences, The Graduate School of Dong-A University, Busan 49315, Republic of Korea
| | - Gyuri Kim
- Department of Health Sciences, The Graduate School of Dong-A University, Busan 49315, Republic of Korea
| | - Gi-Eun Yang
- Department of Health Sciences, The Graduate School of Dong-A University, Busan 49315, Republic of Korea
| | - Hye Jin Yun
- Department of Health Sciences, The Graduate School of Dong-A University, Busan 49315, Republic of Korea
| | - Tae Hwan Shin
- Department of Biomedical Sciences, Dong-A University, Busan 49315, Republic of Korea
| | - Sun Tae Kim
- Department of Plant Bioscience, Life and Industry Convergence Research Institute, Pusan National University, Miryang 50463, Republic of Korea
| | - Kyuhong Lee
- Inhalation Toxicology Center for Airborne Risk Factor, Korea Institute of Toxicology, 30 Baehak1-gil, Jeongeup, Jeollabuk-do, 56212, Republic of Korea
| | - Hyuk Soon Kim
- Department of Health Sciences, The Graduate School of Dong-A University, Busan 49315, Republic of Korea; Department of Biomedical Sciences, Dong-A University, Busan 49315, Republic of Korea
| | - Seok-Ho Kim
- Department of Health Sciences, The Graduate School of Dong-A University, Busan 49315, Republic of Korea
| | - Sun-Hee Leem
- Department of Health Sciences, The Graduate School of Dong-A University, Busan 49315, Republic of Korea; Department of Biomedical Sciences, Dong-A University, Busan 49315, Republic of Korea.
| | - Wan-Seob Cho
- Department of Health Sciences, The Graduate School of Dong-A University, Busan 49315, Republic of Korea.
| | - Jong-Ho Lee
- Department of Health Sciences, The Graduate School of Dong-A University, Busan 49315, Republic of Korea; Department of Biomedical Sciences, Dong-A University, Busan 49315, Republic of Korea.
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Shuvalov O, Kirdeeva Y, Daks A, Fedorova O, Parfenyev S, Simon HU, Barlev NA. Phytochemicals Target Multiple Metabolic Pathways in Cancer. Antioxidants (Basel) 2023; 12:2012. [PMID: 38001865 PMCID: PMC10669507 DOI: 10.3390/antiox12112012] [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: 09/12/2023] [Revised: 11/09/2023] [Accepted: 11/15/2023] [Indexed: 11/26/2023] Open
Abstract
Cancer metabolic reprogramming is a complex process that provides malignant cells with selective advantages to grow and propagate in the hostile environment created by the immune surveillance of the human organism. This process underpins cancer proliferation, invasion, antioxidant defense, and resistance to anticancer immunity and therapeutics. Perhaps not surprisingly, metabolic rewiring is considered to be one of the "Hallmarks of cancer". Notably, this process often comprises various complementary and overlapping pathways. Today, it is well known that highly selective inhibition of only one of the pathways in a tumor cell often leads to a limited response and, subsequently, to the emergence of resistance. Therefore, to increase the overall effectiveness of antitumor drugs, it is advisable to use multitarget agents that can simultaneously suppress several key processes in the tumor cell. This review is focused on a group of plant-derived natural compounds that simultaneously target different pathways of cancer-associated metabolism, including aerobic glycolysis, respiration, glutaminolysis, one-carbon metabolism, de novo lipogenesis, and β-oxidation of fatty acids. We discuss only those compounds that display inhibitory activity against several metabolic pathways as well as a number of important signaling pathways in cancer. Information about their pharmacokinetics in animals and humans is also presented. Taken together, a number of known plant-derived compounds may target multiple metabolic and signaling pathways in various malignancies, something that bears great potential for the further improvement of antineoplastic therapy.
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Affiliation(s)
- Oleg Shuvalov
- Institute of Cytology of the Russian Academy of Sciences, St. Petersburg 194064, Russia; (Y.K.); (A.D.); (O.F.)
| | - Yulia Kirdeeva
- Institute of Cytology of the Russian Academy of Sciences, St. Petersburg 194064, Russia; (Y.K.); (A.D.); (O.F.)
| | - Alexandra Daks
- Institute of Cytology of the Russian Academy of Sciences, St. Petersburg 194064, Russia; (Y.K.); (A.D.); (O.F.)
| | - Olga Fedorova
- Institute of Cytology of the Russian Academy of Sciences, St. Petersburg 194064, Russia; (Y.K.); (A.D.); (O.F.)
| | - Sergey Parfenyev
- Institute of Cytology of the Russian Academy of Sciences, St. Petersburg 194064, Russia; (Y.K.); (A.D.); (O.F.)
| | - Hans-Uwe Simon
- Institute of Pharmacology, University of Bern, 3010 Bern, Switzerland;
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan 420008, Russia
| | - Nickolai A. Barlev
- Institute of Cytology of the Russian Academy of Sciences, St. Petersburg 194064, Russia; (Y.K.); (A.D.); (O.F.)
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan 420008, Russia
- Department of Biomedical Sciences, School of Medicine, Nazarbayev University, Astana 20000, Kazakhstan
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Suhail H, Nematullah M, Rashid F, Sajad M, Fatma M, Singh J, Zahoor I, Cheung WL, Tiwari N, Ayasolla K, Kumar A, Hoda N, Rattan R, Giri S. An early glycolysis burst in microglia regulates mitochondrial dysfunction in oligodendrocytes under neuroinflammation. iScience 2023; 26:107921. [PMID: 37841597 PMCID: PMC10568429 DOI: 10.1016/j.isci.2023.107921] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 07/10/2023] [Accepted: 09/12/2023] [Indexed: 10/17/2023] Open
Abstract
Metabolism and energy processes governing oligodendrocyte function during neuroinflammatory disease are of great interest. However, how varied cellular environments affect oligodendrocyte activity during neuroinflammation is unknown. We demonstrate that activated microglial energy metabolism controls oligodendrocyte mitochondrial respiration and activity. Lipopolysaccharide/interferon gamma promote glycolysis and decrease mitochondrial respiration and myelin protein synthesis in rat brain glial cells. Enriched microglia showed an early burst in glycolysis. In microglia-conditioned medium, oligodendrocytes did not respire and expressed less myelin. SCENITH revealed metabolic derangement in microglia and O4-positive oligodendrocytes in endotoxemia and experimental autoimmune encephalitogenic models. The early burst of glycolysis in microglia was mediated by PDPK1 and protein kinase B/AKT signaling. We found that microglia-produced NO and itaconate, a tricarboxylic acid bifurcated metabolite, reduced mitochondrial respiration in oligodendrocytes. During inflammation, we discovered a signaling pathway in microglia that could be used as a therapeutic target to restore mitochondrial function in oligodendrocytes and induce remyelination.
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Affiliation(s)
- Hamid Suhail
- Department of Neurology, Henry Ford Health System, Detroit, MI 48202, USA
| | | | - Faraz Rashid
- Department of Neurology, Henry Ford Health System, Detroit, MI 48202, USA
| | - Mir Sajad
- Department of Neurology, Henry Ford Health System, Detroit, MI 48202, USA
| | - Mena Fatma
- Department of Neurology, Henry Ford Health System, Detroit, MI 48202, USA
| | - Jaspreet Singh
- Department of Neurology, Henry Ford Health System, Detroit, MI 48202, USA
| | - Insha Zahoor
- Department of Neurology, Henry Ford Health System, Detroit, MI 48202, USA
| | - Wing Lee Cheung
- Department of Neurology, Henry Ford Health System, Detroit, MI 48202, USA
| | - Nivedita Tiwari
- Department of Neurology, Henry Ford Health System, Detroit, MI 48202, USA
| | - Kameshwar Ayasolla
- Department of Neurology, Henry Ford Health System, Detroit, MI 48202, USA
| | - Ashok Kumar
- Department of Ophthalmology/Kresge Eye Institute, Department of Anatomy and Cell Biology, Department of Immunology and Microbiology, Wayne State University, Detroit, MI, USA
| | - Nasrul Hoda
- Department of Neurology, Henry Ford Health System, Detroit, MI 48202, USA
| | - Ramandeep Rattan
- Division of Gynecology Oncology, Department of Women’s Health Services, Henry Ford Health System, Detroit, MI 48202, USA
| | - Shailendra Giri
- Department of Neurology, Henry Ford Health System, Detroit, MI 48202, USA
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7
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Wang Z, Wei D, Bin E, Li J, Jiang K, Lv T, Mao X, Wang F, Dai H, Tang N. Enhanced glycolysis-mediated energy production in alveolar stem cells is required for alveolar regeneration. Cell Stem Cell 2023; 30:1028-1042.e7. [PMID: 37541209 DOI: 10.1016/j.stem.2023.07.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 06/07/2023] [Accepted: 07/12/2023] [Indexed: 08/06/2023]
Abstract
Impaired differentiation of alveolar stem cells has been identified in a variety of acute and chronic lung diseases. In this study, we investigate the mechanisms that modulate alveolar regeneration and understand how aging impacts this process. We have discovered that the process of alveolar type II (AT2) cells differentiating into AT1 cells is an energetically costly process. During alveolar regeneration, activated AMPK-PFKFB2 signaling upregulates glycolysis, which is essential to support the intracellular energy expenditure that is required for cytoskeletal remodeling during AT2 cell differentiation. AT2 cells in aged lungs exhibit reduced AMPK-PFKFB2 signaling and ATP production, resulting in impaired alveolar regeneration. Activating AMPK-PFKFB2 signaling in aged AT2 cells can rescue defective alveolar regeneration in aged mice. Thus, beyond demonstrating that cellular energy metabolism orchestrates with stem cell differentiation during alveolar regeneration, our study suggests that modulating AMPK-PFKFB2 signaling promotes alveolar repair in aged lungs.
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Affiliation(s)
- Zheng Wang
- National Institute of Biological Sciences, Beijing, China; Graduate School of Peking Union Medical College, Beijing, China
| | - Dongdong Wei
- National Institute of Biological Sciences, Beijing, China; Peking University-Tsinghua University-National Institute of Biological Sciences Joint Graduate Program, Peking University, Beijing, China
| | - Ennan Bin
- National Institute of Biological Sciences, Beijing, China
| | - Jiao Li
- National Institute of Biological Sciences, Beijing, China
| | - Kewu Jiang
- National Institute of Biological Sciences, Beijing, China
| | - Tingting Lv
- Center of Respiratory Medicine, China-Japan Friendship Hospital, Beijing, China
| | - Xiaoxu Mao
- National Institute of Biological Sciences, Beijing, China; Tsinghua Institute of Multidisciplinary Biomedical Research, Tsinghua University, Beijing, China
| | - Fengchao Wang
- National Institute of Biological Sciences, Beijing, China; Tsinghua Institute of Multidisciplinary Biomedical Research, Tsinghua University, Beijing, China
| | - Huaping Dai
- Center of Respiratory Medicine, China-Japan Friendship Hospital, Beijing, China
| | - Nan Tang
- National Institute of Biological Sciences, Beijing, China; Graduate School of Peking Union Medical College, Beijing, China; Tsinghua Institute of Multidisciplinary Biomedical Research, Tsinghua University, Beijing, China.
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8
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Gao X, Di X, Li J, Kang Y, Xie W, Sun L, Zhang J. Extracellular Calcium-Induced Calcium Transient Regulating the Proliferation of Osteoblasts through Glycolysis Metabolism Pathways. Int J Mol Sci 2023; 24:ijms24054991. [PMID: 36902420 PMCID: PMC10003245 DOI: 10.3390/ijms24054991] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Revised: 02/15/2023] [Accepted: 02/22/2023] [Indexed: 03/08/2023] Open
Abstract
During bone remodeling, high extracellular calcium levels accumulated around the resorbing bone tissue as soon as the activation of osteoclasts. However, if and how calcium is involved in the regulation of bone remodeling remains unclear. In this study, the effect of high extracellular calcium concentrations on osteoblast proliferation and differentiation, intracellular calcium ([Ca2+]i) levels, metabolomics, and the expression of proteins related to energy metabolism were investigated. Our results showed that high extracellular calcium levels initiated a [Ca2+]i transient via the calcium-sensing receptor (CaSR) and promoted the proliferation of MC3T3-E1 cells. Metabolomics analysis showed that the proliferation of MC3T3-E1 cells was dependent on aerobic glycolysis, but not the tricarboxylic acid cycle. Moreover, the proliferation and glycolysis of MC3T3-E1 cells were suppressed following the inhibition of AKT. These results indicate that calcium transient triggered by high extracellular calcium levels activated glycolysis via AKT-related signaling pathways and ultimately promoted the proliferation of osteoblasts.
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Affiliation(s)
- Xiaohang Gao
- Key Laboratory of Biomedical Information Engineering of Education Ministry, Institute of Health and Rehabilitation Science, School of Life Science and Technology, Xi’an Jiaotong University, Xi’an 711049, China
| | - Xiaohui Di
- Key Laboratory of Biomedical Information Engineering of Education Ministry, Institute of Health and Rehabilitation Science, School of Life Science and Technology, Xi’an Jiaotong University, Xi’an 711049, China
| | - Jingjing Li
- Key Laboratory of Biomedical Information Engineering of Education Ministry, Institute of Health and Rehabilitation Science, School of Life Science and Technology, Xi’an Jiaotong University, Xi’an 711049, China
| | - Yiting Kang
- Key Laboratory of Biomedical Information Engineering of Education Ministry, Institute of Health and Rehabilitation Science, School of Life Science and Technology, Xi’an Jiaotong University, Xi’an 711049, China
| | - Wenjun Xie
- Key Laboratory of Biomedical Information Engineering of Education Ministry, Institute of Health and Rehabilitation Science, School of Life Science and Technology, Xi’an Jiaotong University, Xi’an 711049, China
| | - Lijun Sun
- Institute of Sports Biology, Shaanxi Normal University, Xi’an 710119, China
- Correspondence: (L.S.); (J.Z.)
| | - Jianbao Zhang
- Key Laboratory of Biomedical Information Engineering of Education Ministry, Institute of Health and Rehabilitation Science, School of Life Science and Technology, Xi’an Jiaotong University, Xi’an 711049, China
- Correspondence: (L.S.); (J.Z.)
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9
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Schilperoort M, Ngai D, Katerelos M, Power DA, Tabas I. PFKFB2-mediated glycolysis promotes lactate-driven continual efferocytosis by macrophages. Nat Metab 2023; 5:431-444. [PMID: 36797420 PMCID: PMC10050103 DOI: 10.1038/s42255-023-00736-8] [Citation(s) in RCA: 28] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Accepted: 01/03/2023] [Indexed: 02/18/2023]
Abstract
Resolving-type macrophages prevent chronic inflammation by clearing apoptotic cells through efferocytosis. These macrophages are thought to rely mainly on oxidative phosphorylation, but emerging evidence suggests a possible link between efferocytosis and glycolysis. To gain further insight into this issue, we investigated molecular-cellular mechanisms involved in efferocytosis-induced macrophage glycolysis and its consequences. We found that efferocytosis promotes a transient increase in macrophage glycolysis that is dependent on rapid activation of the enzyme 6-phosphofructo-2-kinase/fructose-2,6-bisphosphatase 2 (PFKFB2), which distinguishes this process from glycolysis in pro-inflammatory macrophages. Mice transplanted with activation-defective PFKFB2 bone marrow and then subjected to dexamethasone-induced thymocyte apoptosis exhibit impaired thymic efferocytosis, increased thymic necrosis, and lower expression of the efferocytosis receptors MerTK and LRP1 on thymic macrophages compared with wild-type control mice. In vitro mechanistic studies revealed that glycolysis stimulated by the uptake of a first apoptotic cell promotes continual efferocytosis through lactate-mediated upregulation of MerTK and LRP1. Thus, efferocytosis-induced macrophage glycolysis represents a unique metabolic process that sustains continual efferocytosis in a lactate-dependent manner. The differentiation of this process from inflammatory macrophage glycolysis raises the possibility that it could be therapeutically enhanced to promote efferocytosis and resolution in chronic inflammatory diseases.
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Affiliation(s)
- Maaike Schilperoort
- Department of Medicine, Columbia University Irving Medical Center, New York, NY, USA.
| | - David Ngai
- Department of Medicine, Columbia University Irving Medical Center, New York, NY, USA
| | - Marina Katerelos
- Kidney Laboratory, Department of Nephrology, Austin Health, Heidelberg, Victoria, Australia
| | - David A Power
- Kidney Laboratory, Department of Nephrology, Austin Health, Heidelberg, Victoria, Australia
- Department of Medicine, The University of Melbourne, Heidelberg, Victoria, Australia
- The Institute for Breathing and Sleep (IBAS), Austin Health, HeidelbergVictoria, Australia
| | - Ira Tabas
- Department of Medicine, Columbia University Irving Medical Center, New York, NY, USA.
- Department of Pathology and Cell Biology, Columbia University Irving Medical Center, New York, NY, USA.
- Department of Physiology, Columbia University Irving Medical Center, New York, NY, USA.
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10
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Zhong Y, Yang F, Su T, Wu X, Zheng W, Zhang L, Liang G, Wang L, Wang L, Wang S, Yang H. Proteome and phosphoproteome profiling of non-small cell lung cancer cell line A549 treated with TRAIL. Proteomics 2023; 23:e2200248. [PMID: 36222260 DOI: 10.1002/pmic.202200248] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 09/21/2022] [Accepted: 09/29/2022] [Indexed: 11/07/2022]
Abstract
Tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) is recognized for its promising therapeutic effects against cancer. However, mechanisms underlying the effect of TRAIL on protein expression, signal transduction, and apoptosis induction remain unclear. We surmised that a systematic analysis of the proteome and phosphoproteome associated with TRAIL signaling may help elucidate the mechanisms involved and facilitate the development of therapeutics. Therefore, we investigated the proteome and phosphoproteome of non-small cell lung cancer cell line A549 treated with TRAIL. Our results indicated that 126 proteins and 1684 phosphosites were markedly differentially expressed between the phosphate-buffered saline- and TRAIL-treated groups. The expression at protein and phosphosite levels were not completely consistent. Gene ontology functional analysis revealed that metal ion (zinc) binding was highly affected by TRAIL treatment. Kyoto Encyclopedia of Genes and Genomes pathway enrichment analysis showed that almost all pathways that involved differentially expressed phosphosites were associated with apoptosis. We also identified an important kinase, AKT1, and its series of substrates in TRAIL signaling. The results of this study may provide guidance for future research on tumor therapy using TRAIL.
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Affiliation(s)
- Yi Zhong
- Proteomics-Metabolomics Platform of Core Facilities, Key Lab of Transplant Engineering and Immunology, MOH, Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu, China
| | - Fen Yang
- Proteomics-Metabolomics Platform of Core Facilities, Key Lab of Transplant Engineering and Immunology, MOH, Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu, China
| | - Tao Su
- Proteomics-Metabolomics Platform of Core Facilities, Key Lab of Transplant Engineering and Immunology, MOH, Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu, China
| | - Xiyu Wu
- Proteomics-Metabolomics Platform of Core Facilities, Key Lab of Transplant Engineering and Immunology, MOH, Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu, China
| | - Wen Zheng
- Proteomics-Metabolomics Platform of Core Facilities, Key Lab of Transplant Engineering and Immunology, MOH, Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu, China
| | - Lu Zhang
- Proteomics-Metabolomics Platform of Core Facilities, Key Lab of Transplant Engineering and Immunology, MOH, Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu, China
| | - Ge Liang
- Proteomics-Metabolomics Platform of Core Facilities, Key Lab of Transplant Engineering and Immunology, MOH, Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu, China
| | - Lian Wang
- Chengdu Centre for Disease Control and Prevention, Chengdu, China
| | - Lijun Wang
- Department of Ophthalmology, The Third People's Hospital of Chengdu, The Affiliated Hospital of Southwest Jiaotong University, Chengdu, China
| | - Shisheng Wang
- Proteomics-Metabolomics Platform of Core Facilities, Key Lab of Transplant Engineering and Immunology, MOH, Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu, China
| | - Hao Yang
- Proteomics-Metabolomics Platform of Core Facilities, Key Lab of Transplant Engineering and Immunology, MOH, Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu, China
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11
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Wenk D, Khan S, Ignatchenko V, Hübner H, Gmeiner P, Weikert D, Pischetsrieder M, Kislinger T. Phosphoproteomic Analysis of Dopamine D2 Receptor Signaling Reveals Interplay of G Protein- and β-Arrestin-Mediated Effects. J Proteome Res 2023; 22:259-271. [PMID: 36508580 PMCID: PMC9831068 DOI: 10.1021/acs.jproteome.2c00707] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Leveraging biased signaling of G protein-coupled receptors has been proposed as a promising strategy for the development of drugs with higher specificity. However, the consequences of selectively targeting G protein- or β-arrestin-mediated signaling on cellular functions are not comprehensively understood. In this study, we utilized phosphoproteomics to gain a systematic overview of signaling induced by the four biased and balanced dopamine D2 receptor (D2R) ligands MS308, BM138, quinpirole, and sulpiride in an in vitro D2R transfection model. Quantification of 14,160 phosphosites revealed a low impact of the partial G protein agonist MS308 on cellular protein phosphorylation, as well as surprising similarities between the balanced agonist quinpirole and the inverse agonist sulpiride. Analysis of the temporal profiles of ligand-induced phosphorylation events showed a transient impact of the G protein-selective agonist MS308, whereas the β-arrestin-preferring agonist BM138 elicited a delayed, but more pronounced response. Functional enrichment analysis of ligand-impacted phosphoproteins and treatment-linked kinases confirmed multiple known functions of D2R signaling while also revealing novel effects, for example of MS308 on sterol regulatory element-binding protein-related gene expression. All raw data were deposited in MassIVE (MSV000089457).
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Affiliation(s)
- Deborah Wenk
- Princess
Margaret Cancer Centre, University Health
Network, 101 College
Street, Toronto, Ontario M5G 1L7, Canada
| | - Shahbaz Khan
- Princess
Margaret Cancer Centre, University Health
Network, 101 College
Street, Toronto, Ontario M5G 1L7, Canada
| | - Vladimir Ignatchenko
- Princess
Margaret Cancer Centre, University Health
Network, 101 College
Street, Toronto, Ontario M5G 1L7, Canada
| | - Harald Hübner
- Medicinal
Chemistry, Department of Chemistry and Pharmacy, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Nikolaus-Fiebiger-Strasse 10, 91058 Erlangen, Germany
| | - Peter Gmeiner
- Medicinal
Chemistry, Department of Chemistry and Pharmacy, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Nikolaus-Fiebiger-Strasse 10, 91058 Erlangen, Germany
| | - Dorothee Weikert
- Medicinal
Chemistry, Department of Chemistry and Pharmacy, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Nikolaus-Fiebiger-Strasse 10, 91058 Erlangen, Germany
| | - Monika Pischetsrieder
- Food
Chemistry, Department of Chemistry and Pharmacy, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Nikolaus-Fiebiger-Strasse 10, 91058 Erlangen, Germany
| | - Thomas Kislinger
- Princess
Margaret Cancer Centre, University Health
Network, 101 College
Street, Toronto, Ontario M5G 1L7, Canada,Department
of Medical Biophysics, University of Toronto, 101 College Street, Toronto, Ontario M5G 1L7, Canada,
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12
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Wang G, Chen L, Qin S, Zheng Y, Xia C, Yao J, Wang P, Deng L. Cystine Induced-mTORC2 Activation through Promoting Sin1 Phosphorylation to Suppress Cancer Cell Ferroptosis. Mol Nutr Food Res 2022; 66:e2200186. [PMID: 36189894 DOI: 10.1002/mnfr.202200186] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 09/19/2022] [Indexed: 01/18/2023]
Abstract
SCOPE Mechanistic target of rapamycin (mTOR) serves as a central signaling node in the coordination of cell growth and metabolism, and it functions via two distinct complexes, namely, mTOR complex 1 (mTORC1) and mTORC2. mTORC1 plays a crucial role in sensing amino acids, whereas mTORC2 involves in sensing growth factors. However, it remains largely unclear whether mTORC2 can sense amino acids and the mechanism by which amino acids regulate mTORC2 has not been studied. METHODS AND RESULTS After treating cells with indicated concentration of amino acids for different time, it is found that the mTORC2 activation is significantly increased in response to amino acids stimulation, especially cystine. Particularly, knockdown solute carrier family 7 member 11 (SLC7A11) by siRNA shows that SLC7A11-mediated cystine uptake is responsible for activating mTORC2. Mechanistically, the study finds that p38 is activated in response to cystine stimulation, and co-immunoprecipitation (Co-IP) experiments suggest that p38 regulates the assembly of components within mTORC2 by mediating the phosphorylation of the mTORC2 subunit mitogen-activated protein kinase-interacting protein 1 (Sin1) in a cystine-dependent manner. Finally, combined with inducers and inhibitors of ferroptosis and cell viability assay, the study observes that cystine-mediated regulation of the p38-Sin1-mTOR-AKT pathway induces resistance to ferroptosis. CONCLUSION These results indicate that cystine-induced activation of the p38-Sin1-mTORC2-AKT pathway suppresses ferroptosis.
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Affiliation(s)
- GuoYan Wang
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Lei Chen
- Division of Laboratory Safety and Services, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - SenLin Qin
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - YiNing Zheng
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Chao Xia
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - JunHu Yao
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Ping Wang
- Tongji University Cancer Center, Shanghai Tenth People's Hospital of Tongji University, School of Medicine, Tongji University, Shanghai, 200092, China
| | - Lu Deng
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
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13
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Zheng X, Ma H, Wang J, Huang M, Fu D, Qin L, Yin Q. Energy metabolism pathways in breast cancer progression: The reprogramming, crosstalk, and potential therapeutic targets. Transl Oncol 2022; 26:101534. [PMID: 36113343 PMCID: PMC9482139 DOI: 10.1016/j.tranon.2022.101534] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 08/14/2022] [Accepted: 09/04/2022] [Indexed: 11/19/2022] Open
Abstract
Breast cancer (BC) is a malignant tumor that seriously endangers health in women. BC, like other cancers, is accompanied by metabolic reprogramming. Among energy metabolism-related pathways, BC exhibits enhanced glycolysis, tricarboxylic acid (TCA) cycle, pentose phosphate pathway (PPP), glutamate metabolism, and fatty acid metabolism activities. These pathways facilitate the proliferation, growth and migration of BC cells. The progression of BC is closely related to the alterations in the activity or expression level of several metabolic enzymes, which are regulated by the intrinsic factors such as the key signaling and transcription factors. The metabolic reprogramming in the progression of BC is attributed to the aberrant expression of the signaling and transcription factors associated with the energy metabolism pathways. Understanding the metabolic mechanisms underlying the development of BC will provide a druggable potential for BC treatment and drug discovery.
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Affiliation(s)
- Xuewei Zheng
- School of Medical Technology and Engineering, Henan University of Science and Technology, Luoyang, China
| | - Haodi Ma
- School of Medical Technology and Engineering, Henan University of Science and Technology, Luoyang, China
| | - Jingjing Wang
- School of Medical Technology and Engineering, Henan University of Science and Technology, Luoyang, China
| | - Mengjiao Huang
- School of Medical Technology and Engineering, Henan University of Science and Technology, Luoyang, China
| | - Dongliao Fu
- School of Medical Technology and Engineering, Henan University of Science and Technology, Luoyang, China
| | - Ling Qin
- Department of Hematology, The First Affiliated Hospital of Henan University of Science and Technology, Luoyang, China
| | - Qinan Yin
- School of Medical Technology and Engineering, Henan University of Science and Technology, Luoyang, China.
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14
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Liu Y, Shi H, Hu Y, Yao R, Liu P, Yang Y, Li S. RNA binding motif protein 3 (RBM3) promotes protein kinase B (AKT) activation to enhance glucose metabolism and reduce apoptosis in skeletal muscle of mice under acute cold exposure. Cell Stress Chaperones 2022; 27:603-618. [PMID: 36149580 PMCID: PMC9672220 DOI: 10.1007/s12192-022-01297-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 09/01/2022] [Accepted: 09/09/2022] [Indexed: 01/25/2023] Open
Abstract
The main danger of cold stress to animals in cold regions is systemic metabolic changes and protein synthesis inhibition. RBM3, an exceptional cold shock protein, is rapidly upregulated in response to hypothermia to resist the adverse effects of cold stress. However, the mechanism of the protective effect and the rapid upregulation of RBM3 remains unclear. O-GlcNAcylation, an atypical O-glycosylation, is precisely regulated only by O-GlcNAc transferase (OGT) and O-GlcNAcase (OGA) and participates in the signal transduction of multiple cellular stress responses as a "stress and nutrition receptor." Therefore, our study aimed to explore the mechanism of RBM3 regulating glucose metabolism and promoting survival in skeletal muscle under acute cold exposure. Meanwhile, our study verifies whether O-GlcNAcylation mediated by OGT rapidly upregulates RBM3. The blood and skeletal muscle of mice were collected at the end of cold exposure treatment for 0, 2, and 4 h. Changes in levels of RBM3, AKT, glycolysis apoptosis, and OGT were measured. The results show that acute cold exposure upregulated RBM3, OGT, and AKT phosphorylation and increased energy consumption, which enhanced glycolysis and prevent apoptosis. In the 32 °C mild hypothermia model in vitro, overexpression of RBM3 enhanced AKT phosphorylation. Meanwhile, inactivation of AKT by wortmannin resulted in increased apoptosis and decreased glucose metabolism in skeletal muscle under acute cold exposure. In addition, OGT-mediated O-GlcNAcylation of p65 was confirmed in mouse myoblast cell line (C2C12) cells at mild hypothermia. O-GlcNAcylation level affected p65 activity and nuclear translocation. Compared with wild type (WT) mice, RBM3 and p65 phosphorylation were decreased in specific skeletal muscle Ogt (KO) mice, whereas AKT phosphorylation, glycolysis, and apoptosis were increased. Taken together, O-GlcNAcylation of p65 upregulates RBM3 to promote AKT phosphorylation, enhance glucose metabolism, and reduce apoptosis in skeletal muscle of mice under acute cold exposure.
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Affiliation(s)
- Yang Liu
- National Experimental Teaching Demonstration Center of Animal Medicine Foundation, College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, 163319, People's Republic of China
| | - Hongzhao Shi
- Department of Animal Engineering, Yangling Vocational & Technical College, Xianyang, 712199, People's Republic of China
| | - Yajie Hu
- National Experimental Teaching Demonstration Center of Animal Medicine Foundation, College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, 163319, People's Republic of China
| | - Ruizhi Yao
- College of Animal Science and Technology, Inner Mongolia University for Nationalities, Tongliao, 028000, People's Republic of China
| | - Peng Liu
- National Experimental Teaching Demonstration Center of Animal Medicine Foundation, College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, 163319, People's Republic of China
| | - Yuying Yang
- National Experimental Teaching Demonstration Center of Animal Medicine Foundation, College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, 163319, People's Republic of China
| | - Shize Li
- National Experimental Teaching Demonstration Center of Animal Medicine Foundation, College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, 163319, People's Republic of China.
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15
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Bou‐Teen D, Fernandez‐Sanz C, Miro‐Casas E, Nichtova Z, Bonzon‐Kulichenko E, Casós K, Inserte J, Rodriguez‐Sinovas A, Benito B, Sheu S, Vázquez J, Ferreira‐González I, Ruiz‐Meana M. Defective dimerization of FoF1-ATP synthase secondary to glycation favors mitochondrial energy deficiency in cardiomyocytes during aging. Aging Cell 2022; 21:e13564. [PMID: 35233924 PMCID: PMC8920436 DOI: 10.1111/acel.13564] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 01/18/2022] [Accepted: 01/24/2022] [Indexed: 11/30/2022] Open
Abstract
Aged cardiomyocytes develop a mismatch between energy demand and supply, the severity of which determines the onset of heart failure, and become prone to undergo cell death. The FoF1-ATP synthase is the molecular machine that provides >90% of the ATP consumed by healthy cardiomyocytes and is proposed to form the mitochondrial permeability transition pore (mPTP), an energy-dissipating channel involved in cell death. We investigated whether aging alters FoF1-ATP synthase self-assembly, a fundamental biological process involved in mitochondrial cristae morphology and energy efficiency, and the functional consequences this may have. Purified heart mitochondria and cardiomyocytes from aging mice displayed an impaired dimerization of FoF1-ATP synthase (blue native and proximity ligation assay), associated with abnormal mitochondrial cristae tip curvature (TEM). Defective dimerization did not modify the in vitro hydrolase activity of FoF1-ATP synthase but reduced the efficiency of oxidative phosphorylation in intact mitochondria (in which membrane architecture plays a fundamental role) and increased cardiomyocytes' susceptibility to undergo energy collapse by mPTP. High throughput proteomics and fluorescence immunolabeling identified glycation of 5 subunits of FoF1-ATP synthase as the causative mechanism of the altered dimerization. In vitro induction of FoF1-ATP synthase glycation in H9c2 myoblasts recapitulated the age-related defective FoF1-ATP synthase assembly, reduced the relative contribution of oxidative phosphorylation to cell energy metabolism, and increased mPTP susceptibility. These results identify altered dimerization of FoF1-ATP synthase secondary to enzyme glycation as a novel pathophysiological mechanism involved in mitochondrial cristae remodeling, energy deficiency, and increased vulnerability of cardiomyocytes to undergo mitochondrial failure during aging.
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Affiliation(s)
- Diana Bou‐Teen
- Cardiovascular Diseases Research Group Vall d’Hebron Institut de Recerca (VHIR) Vall d’Hebron Hospital Universitari Barcelona Spain
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBER‐CV) Madrid Spain
| | - Celia Fernandez‐Sanz
- Center for Translational Medicine Department of Medicine Thomas Jefferson University Philadelphia Pennsylvania USA
| | - Elisabet Miro‐Casas
- Cardiovascular Diseases Research Group Vall d’Hebron Institut de Recerca (VHIR) Vall d’Hebron Hospital Universitari Barcelona Spain
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBER‐CV) Madrid Spain
| | - Zuzana Nichtova
- Cardiovascular Proteomics Laboratory Centro Nacional de Investigaciones Cardiovasculares Carlos III Madrid Spain
| | - Elena Bonzon‐Kulichenko
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBER‐CV) Madrid Spain
- MitoCare Center for Mitochondrial Imaging Research and Diagnostics Department of Pathology Anatomy & Cell Biol. Thomas Jefferson University Philadelphia Pennsylvania USA
| | - Kelly Casós
- Cardiovascular Diseases Research Group Vall d’Hebron Institut de Recerca (VHIR) Vall d’Hebron Hospital Universitari Barcelona Spain
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBER‐CV) Madrid Spain
| | - Javier Inserte
- Cardiovascular Diseases Research Group Vall d’Hebron Institut de Recerca (VHIR) Vall d’Hebron Hospital Universitari Barcelona Spain
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBER‐CV) Madrid Spain
| | - Antonio Rodriguez‐Sinovas
- Cardiovascular Diseases Research Group Vall d’Hebron Institut de Recerca (VHIR) Vall d’Hebron Hospital Universitari Barcelona Spain
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBER‐CV) Madrid Spain
| | - Begoña Benito
- Cardiovascular Diseases Research Group Vall d’Hebron Institut de Recerca (VHIR) Vall d’Hebron Hospital Universitari Barcelona Spain
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBER‐CV) Madrid Spain
| | - Shey‐Shing Sheu
- Center for Translational Medicine Department of Medicine Thomas Jefferson University Philadelphia Pennsylvania USA
| | - Jesús Vázquez
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBER‐CV) Madrid Spain
- MitoCare Center for Mitochondrial Imaging Research and Diagnostics Department of Pathology Anatomy & Cell Biol. Thomas Jefferson University Philadelphia Pennsylvania USA
| | - Ignacio Ferreira‐González
- Cardiovascular Diseases Research Group Vall d’Hebron Institut de Recerca (VHIR) Vall d’Hebron Hospital Universitari Barcelona Spain
| | - Marisol Ruiz‐Meana
- Cardiovascular Diseases Research Group Vall d’Hebron Institut de Recerca (VHIR) Vall d’Hebron Hospital Universitari Barcelona Spain
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBER‐CV) Madrid Spain
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16
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Jeon M, Chauhan KM, Szeto GL, Kyoung M, An S. Subcellular regulation of glucose metabolism through multienzyme glucosome assemblies by EGF-ERK1/2 signaling pathways. J Biol Chem 2022; 298:101675. [PMID: 35122791 PMCID: PMC8892083 DOI: 10.1016/j.jbc.2022.101675] [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: 08/27/2021] [Revised: 01/26/2022] [Accepted: 01/28/2022] [Indexed: 12/12/2022] Open
Abstract
A multienzyme metabolic assembly for human glucose metabolism, namely the glucosome, has been previously demonstrated to partition glucose flux between glycolysis and building block biosynthesis in an assembly size-dependent manner. Among three different sizes of glucosome assemblies, we have shown that large-sized glucosomes are functionally associated with the promotion of serine biosynthesis in the presence of epidermal growth factor (EGF). However, due to multifunctional roles of EGF in signaling pathways, it is unclear which EGF-mediated signaling pathways promote these large glucosome assemblies in cancer cells. In this study, we used Luminex multiplexing assays and high-content single-cell imaging to demonstrate that EGF triggers temporal activation of extracellular signal-regulated kinases 1/2 (ERK1/2) in Hs578T cells. Subsequently, we found that treatments with a pharmacological inhibitor of ERK1/2, SCH772984, or short-hairpin RNAs targeting ERK1/2 promote the dissociation of large-sized assemblies to medium-sized assemblies in Hs578T cells. In addition, our Western blot analyses revealed that EGF treatment does not increase the expression levels of enzymes that are involved in both glucose metabolism and serine biosynthesis. The observed spatial transition of glucosome assemblies between large and medium sizes appears to be mediated by the degree of dynamic partitioning of glucosome enzymes without changing their expression levels. Collectively, our study demonstrates that EGF–ERK1/2 signaling pathways play an important role in the upregulation of large-sized glucosomes in cancer cells, thus functionally governing the promotion of glycolysis-derived serine biosynthesis.
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Affiliation(s)
- Miji Jeon
- Departments of Chemistry and Biochemistry, University of Maryland Baltimore County (UMBC), Baltimore, Maryland, 21250
| | - Krishna M Chauhan
- Departments of Chemistry and Biochemistry, University of Maryland Baltimore County (UMBC), Baltimore, Maryland, 21250
| | - Gregory L Szeto
- Department of Chemical, Biochemical and Environmental Engineering, University of Maryland Baltimore County (UMBC), Baltimore, Maryland, 21250; Program in Oncology, Marlene and Stewart Greenebaum Comprehensive Cancer Center, University of Maryland, Baltimore, MD 21201
| | - Minjoung Kyoung
- Departments of Chemistry and Biochemistry, University of Maryland Baltimore County (UMBC), Baltimore, Maryland, 21250; Program in Oncology, Marlene and Stewart Greenebaum Comprehensive Cancer Center, University of Maryland, Baltimore, MD 21201
| | - Songon An
- Departments of Chemistry and Biochemistry, University of Maryland Baltimore County (UMBC), Baltimore, Maryland, 21250; Program in Oncology, Marlene and Stewart Greenebaum Comprehensive Cancer Center, University of Maryland, Baltimore, MD 21201.
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17
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Shin E, Koo JS. Glucose Metabolism and Glucose Transporters in Breast Cancer. Front Cell Dev Biol 2021; 9:728759. [PMID: 34552932 PMCID: PMC8450384 DOI: 10.3389/fcell.2021.728759] [Citation(s) in RCA: 70] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Accepted: 08/10/2021] [Indexed: 12/12/2022] Open
Abstract
Breast cancer is the most common malignancy in women worldwide and is associated with high mortality rates despite the continuously advancing treatment strategies. Glucose is essential for cancer cell metabolism owing to the Warburg effect. During the process of glucose metabolism, various glycolytic metabolites, such as serine and glycine metabolites, are produced and other metabolic pathways, such as the pentose phosphate pathway (PPP), are associated with the process. Glucose is transported into the cell by glucose transporters, such as GLUT. Breast cancer shows high expressions of glucose metabolism-related enzymes and GLUT, which are also related to breast cancer prognosis. Triple negative breast cancer (TNBC), which is a high-grade breast cancer, is especially dependent on glucose metabolism. Breast cancer also harbors various stromal cells such as cancer-associated fibroblasts and immune cells as tumor microenvironment, and there exists a metabolic interaction between these stromal cells and breast cancer cells as explained by the reverse Warburg effect. Breast cancer is heterogeneous, and, consequently, its metabolic status is also diverse, which is especially affected by the molecular subtype, progression stage, and metastatic site. In this review, we will focus on glucose metabolism and glucose transporters in breast cancer, and we will additionally discuss their potential applications as cancer imaging tracers and treatment targets.
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Affiliation(s)
| | - Ja Seung Koo
- Department of Pathology, Yonsei University College of Medicine, Seoul, South Korea
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18
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Hua H, Zhang H, Chen J, Wang J, Liu J, Jiang Y. Targeting Akt in cancer for precision therapy. J Hematol Oncol 2021; 14:128. [PMID: 34419139 PMCID: PMC8379749 DOI: 10.1186/s13045-021-01137-8] [Citation(s) in RCA: 107] [Impact Index Per Article: 35.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 08/03/2021] [Indexed: 02/08/2023] Open
Abstract
Biomarkers-guided precision therapeutics has revolutionized the clinical development and administration of molecular-targeted anticancer agents. Tailored precision cancer therapy exhibits better response rate compared to unselective treatment. Protein kinases have critical roles in cell signaling, metabolism, proliferation, survival and migration. Aberrant activation of protein kinases is critical for tumor growth and progression. Hence, protein kinases are key targets for molecular targeted cancer therapy. The serine/threonine kinase Akt is frequently activated in various types of cancer. Activation of Akt promotes tumor progression and drug resistance. Since the first Akt inhibitor was reported in 2000, many Akt inhibitors have been developed and evaluated in either early or late stage of clinical trials, which take advantage of liquid biopsy and genomic or molecular profiling to realize personalized cancer therapy. Two inhibitors, capivasertib and ipatasertib, are being tested in phase III clinical trials for cancer therapy. Here, we highlight recent progress of Akt signaling pathway, review the up-to-date data from clinical studies of Akt inhibitors and discuss the potential biomarkers that may help personalized treatment of cancer with Akt inhibitors. In addition, we also discuss how Akt may confer the vulnerability of cancer cells to some kinds of anticancer agents.
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Affiliation(s)
- Hui Hua
- State Key Laboratory of Biotherapy, Laboratory of Stem Cell Biology, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Hongying Zhang
- State Key Laboratory of Biotherapy, Laboratory of Oncogene, Cancer Center, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Jingzhu Chen
- State Key Laboratory of Biotherapy, Laboratory of Oncogene, Cancer Center, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Jiao Wang
- School of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Jieya Liu
- State Key Laboratory of Biotherapy, Laboratory of Oncogene, Cancer Center, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Yangfu Jiang
- State Key Laboratory of Biotherapy, Laboratory of Oncogene, Cancer Center, West China Hospital, Sichuan University, Chengdu, 610041, China.
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19
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Tortelote GG, Colón-Leyva M, Saifudeen Z. Metabolic programming of nephron progenitor cell fate. Pediatr Nephrol 2021; 36:2155-2164. [PMID: 33089379 PMCID: PMC10734399 DOI: 10.1007/s00467-020-04752-8] [Citation(s) in RCA: 3] [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: 05/01/2020] [Revised: 06/30/2020] [Accepted: 08/31/2020] [Indexed: 11/28/2022]
Abstract
Metabolic pathways are one of the first responses at the cellular level to maternal/fetal interface stressors. Studies have revealed the previously unrecognized contributions of intermediary metabolism to developmental programs. Here, we provide an overview of cellular metabolic pathways and the cues that modulate metabolic states. We discuss the developmental and physiological implications of metabolic reprogramming and the key role of metabolites in epigenetic and epiproteomic modifications during embryonic development and with respect to kidney development and nephrogenesis.
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Affiliation(s)
- Giovane G Tortelote
- Department of Pediatrics, Tulane University School of Medicine, 1430 Tulane Avenue SL37, Room 5534, New Orleans, LA, 70112, USA
| | - Mariel Colón-Leyva
- Department of Pediatrics, Tulane University School of Medicine, 1430 Tulane Avenue SL37, Room 5534, New Orleans, LA, 70112, USA
| | - Zubaida Saifudeen
- Department of Pediatrics, Tulane University School of Medicine, 1430 Tulane Avenue SL37, Room 5534, New Orleans, LA, 70112, USA.
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20
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Sha L, Lv Z, Liu Y, Zhang Y, Sui X, Wang T, Zhang H. Shikonin inhibits the Warburg effect, cell proliferation, invasion and migration by downregulating PFKFB2 expression in lung cancer. Mol Med Rep 2021; 24:560. [PMID: 34109434 PMCID: PMC8201656 DOI: 10.3892/mmr.2021.12199] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Accepted: 02/04/2021] [Indexed: 01/24/2023] Open
Abstract
Lung cancer is one of the most lethal diseases and therefore poses a significant threat to human health. The Warburg effect, which is the observation that cancer cells predominately produce energy through glycolysis, even under aerobic conditions, is a hallmark of cancer. 6-phosphofructo-2-kinase/fructose-2,6-biphosphatase 2 (PFKFB) is an important regulator of glycolysis. Shikonin is a Traditional Chinese herbal medicine, which has been reported to exert antitumor effects. The present study aimed to investigate the anticancer activity of shikonin in lung cancer. Cell Counting Kit-8 (CCK-8) and colony formation assays were used to analyze proliferation in A549 and H446 cells. Wound healing and Transwell assays were used to measure migration and invasion in A549 and H446 cells. Cell apoptosis was analyzed using flow cytometry. Lactate levels, glucose uptake and cellular ATP levels were measured using their corresponding commercial kits. Western blotting was performed to analyze the protein expression levels of key enzymes involved in aerobic glucose metabolism. Reverse transcription-quantitative PCR was used to analyze the mRNA expression levels of PFKFB2. The results of the present study revealed that PFKFB2 expression levels were significantly upregulated in NSCLC tissues. Shikonin treatment decreased the proliferation, migration, invasion, glucose uptake, lactate levels, ATP levels and PFKFB2 expression levels and increased apoptosis in lung cancer cells in a dose-dependent manner. The overexpression of PFKFB2 increased the proliferation, migration, glucose uptake, lactate levels and ATP levels in lung cancer cells, while the knockdown of PFKFB2 expression exerted the opposite effects. Moreover, there were no significant differences in lung cancer cell migration, apoptosis, glucose uptake, lactate levels and ATP levels between cells with knocked down PFKFB2 expression or treated with shikonin and the knockdown of PFKFB2 in cells treated with shikonin. In conclusion, the results of the present study revealed that shikonin inhibited the Warburg effect and exerted antitumor activity in lung cancer cells, which was associated with the downregulation of PFKFB2 expression.
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Affiliation(s)
- Liying Sha
- Department of Pharmacy, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, P.R. China
| | - Zhiqiang Lv
- Department of Pharmacy, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, P.R. China
| | - Yujun Liu
- Department of Pharmacy, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, P.R. China
| | - Yun Zhang
- Department of Business, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, P.R. China
| | - Xin Sui
- Department of Pharmacy, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, P.R. China
| | - Teng Wang
- Department of Pharmacy, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, P.R. China
| | - Hui Zhang
- Department of Pharmacy, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, P.R. China
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21
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O'Brien CM, Zhang Q, Daoutidis P, Hu WS. A hybrid mechanistic-empirical model for in silico mammalian cell bioprocess simulation. Metab Eng 2021; 66:31-40. [PMID: 33813033 DOI: 10.1016/j.ymben.2021.03.016] [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: 07/24/2020] [Revised: 01/10/2021] [Accepted: 03/27/2021] [Indexed: 12/20/2022]
Abstract
In cell culture processes cell growth and metabolism drive changes in the chemical environment of the culture. These environmental changes elicit reactor control actions, cell growth response, and are sensed by cell signaling pathways that influence metabolism. The interplay of these forces shapes the culture dynamics through different stages of cell cultivation and the outcome greatly affects process productivity, product quality, and robustness. Developing a systems model that describes the interactions of those major players in the cell culture system can lead to better process understanding and enhance process robustness. Here we report the construction of a hybrid mechanistic-empirical bioprocess model which integrates a mechanistic metabolic model with subcomponent models for cell growth, signaling regulation, and the bioreactor environment for in silico exploration of process scenarios. Model parameters were optimized by fitting to a dataset of cell culture manufacturing process which exhibits variability in metabolism and productivity. The model fitting process was broken into multiple steps to mitigate the substantial numerical challenges related to the first-principles model components. The optimized model captured the dynamics of metabolism and the variability of the process runs with different kinetic profiles and productivity. The variability of the process was attributed in part to the metabolic state of cell inoculum. The model was then used to identify potential mitigation strategies to reduce process variability by altering the initial process conditions as well as to explore the effect of changing CO2 removal capacity in different bioreactor scales on process performance. By incorporating a mechanistic model of cell metabolism and appropriately fitting it to a large dataset, the hybrid model can describe the different metabolic phases in culture and the variability in manufacturing runs. This approach of employing a hybrid model has the potential to greatly facilitate process development and reactor scaling.
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Affiliation(s)
- Conor M O'Brien
- Department of Chemical Engineering and Materials Science, University of Minnesota, 421 Washington Avenue SE, Minneapolis, MN, 55455-0132, USA
| | - Qi Zhang
- Department of Chemical Engineering and Materials Science, University of Minnesota, 421 Washington Avenue SE, Minneapolis, MN, 55455-0132, USA
| | - Prodromos Daoutidis
- Department of Chemical Engineering and Materials Science, University of Minnesota, 421 Washington Avenue SE, Minneapolis, MN, 55455-0132, USA
| | - Wei-Shou Hu
- Department of Chemical Engineering and Materials Science, University of Minnesota, 421 Washington Avenue SE, Minneapolis, MN, 55455-0132, USA.
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22
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Gao J, Feng W, Lv W, Liu W, Fu C. HIF-1/AKT Signaling-Activated PFKFB2 Alleviates Cardiac Dysfunction and Cardiomyocyte Apoptosis in Response to Hypoxia. Int Heart J 2021; 62:350-358. [PMID: 33678793 DOI: 10.1536/ihj.20-315] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Myocardial infarction (MI) is the most prevalent disease with severe mortality, and hypoxia-induced cardiac injury and cardiomyocyte apoptosis are the significant and harmful consequences of this disease. The cross talk between hypoxia signaling and glycolysis energy flux plays a critical role in modulating MI-related heart disorder. However, the underlying mechanism remains unclear. Here, we aimed to explore the effect of a key glycolytic enzyme of 6-phosphofructo-2-kinase/fructose-2, 6-bisphosphatase 2 (PFKFB2) on cardiac dysfunction and apoptosis in response to hypoxia. Our data demonstrated that the mRNA and protein expression of PFKFB2 were significantly elevated in the MI mice. The MI treatment promoted the activation of PFKFB2 in vivo, as presented by the remarkably increased phosphorylation levels of PFKFB2. PFKFB2 depletion enhanced MI-induced cardiac dysfunction and cardiomyocyte apoptosis in the MI mouse model. Moreover, hypoxia treatment dramatically upregulated the expression and activation of PFKFB2 in a time-dependent manner in cardiomyocytes. Hypoxia-stimulated PFKFB2 relieved hypoxia-induced cardiomyocyte apoptosis in vitro. PFKFB2 activated the fructose-2, 6-bisphosphate (Fru-2, 6-p2) /PFK/anaerobic adenosine triphosphate (ATP) glycolysis energy flux in response to hypoxia in cardiomyocytes. Mechanically, hypoxia-activated PFKFB2 by stimulating the hypoxia-inducible factor 1 (HIF-1) /ATK signaling. Thus, we conclude that HIF-1/AKT axis-activated PFKFB2 alleviates cardiac dysfunction and cardiomyocyte apoptosis in response to hypoxia. Our finding presents a new insight into the mechanism by which HIF-1/AKT/PFKFB2 signaling modulates MI-related heart disorder under the hypoxia condition, providing potential therapeutic targets and strategy for hypoxia-related myocardial injury.
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Affiliation(s)
- Juanyu Gao
- Department of Cardiology, Central Hospital Affiliated to Shandong First Medical University
| | - Wenjing Feng
- Department of Cardiology, Central Hospital Affiliated to Shandong First Medical University
| | - Wei Lv
- Department of Cardiology, Central Hospital Affiliated to Shandong First Medical University
| | - Wenhui Liu
- Department of Cardiology, The Second Hospital of Shandong University
| | - Caihua Fu
- Department of Cardiology, Central Hospital Affiliated to Shandong First Medical University
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23
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Götting I, Jendrossek V, Matschke J. A New Twist in Protein Kinase B/Akt Signaling: Role of Altered Cancer Cell Metabolism in Akt-Mediated Therapy Resistance. Int J Mol Sci 2020; 21:ijms21228563. [PMID: 33202866 PMCID: PMC7697684 DOI: 10.3390/ijms21228563] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 10/23/2020] [Accepted: 11/09/2020] [Indexed: 12/11/2022] Open
Abstract
Cancer resistance to chemotherapy, radiotherapy and molecular-targeted agents is a major obstacle to successful cancer therapy. Herein, aberrant activation of the phosphatidyl-inositol-3-kinase (PI3K)/protein kinase B (Akt) pathway is one of the most frequently deregulated pathways in cancer cells and has been associated with multiple aspects of therapy resistance. These include, for example, survival under stress conditions, apoptosis resistance, activation of the cellular response to DNA damage and repair of radiation-induced or chemotherapy-induced DNA damage, particularly DNA double strand breaks (DSB). One further important, yet not much investigated aspect of Akt-dependent signaling is the regulation of cell metabolism. In fact, many Akt target proteins are part of or involved in the regulation of metabolic pathways. Furthermore, recent studies revealed the importance of certain metabolites for protection against therapy-induced cell stress and the repair of therapy-induced DNA damage. Thus far, the likely interaction between deregulated activation of Akt, altered cancer metabolism and therapy resistance is not yet well understood. The present review describes the documented interactions between Akt, its target proteins and cancer cell metabolism, focusing on antioxidant defense and DSB repair. Furthermore, the review highlights potential connections between deregulated Akt, cancer cell metabolism and therapy resistance of cancer cells through altered DSB repair and discusses potential resulting therapeutic implications.
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24
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Smith SL, Pitt AR, Spickett CM. Approaches to Investigating the Protein Interactome of PTEN. J Proteome Res 2020; 20:60-77. [PMID: 33074689 DOI: 10.1021/acs.jproteome.0c00570] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The tumor suppressor phosphatase and tensin homologue (PTEN) is a redox-sensitive dual specificity phosphatase with an essential role in the negative regulation of the PI3K-AKT signaling pathway, affecting metabolic and cell survival processes. PTEN is commonly mutated in cancer, and dysregulation in the metabolism of PIP3 is implicated in other diseases such as diabetes. PTEN interactors are responsible for some functional roles of PTEN beyond the negative regulation of the PI3K pathway and are thus of great importance in cell biology. Both high-data content proteomics-based approaches and low-data content PPI approaches have been used to investigate the interactome of PTEN and elucidate further functions of PTEN. While low-data content approaches rely on co-immunoprecipitation and Western blotting, and as such require previously generated hypotheses, high-data content approaches such as affinity pull-down proteomic assays or the yeast 2-hybrid system are hypothesis generating. This review provides an overview of the PTEN interactome, including redox effects, and critically appraises the methods and results of high-data content investigations into the global interactome of PTEN. The biological significance of findings from recent studies is discussed and illustrates the breadth of cellular functions of PTEN that can be discovered by these approaches.
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Affiliation(s)
- Sarah L Smith
- School of Life and Health Sciences, Aston Triangle, Aston University, B4 7ET, Birmingham, U.K
| | - Andrew R Pitt
- School of Life and Health Sciences, Aston Triangle, Aston University, B4 7ET, Birmingham, U.K.,Manchester Institute of Biotechnology, University of Manchester, 131 Princess Street, Manchester, M1 7DN, U.K
| | - Corinne M Spickett
- School of Life and Health Sciences, Aston Triangle, Aston University, B4 7ET, Birmingham, U.K
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25
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Stein BD, Calzolari D, Hellberg K, Hu YS, He L, Hung CM, Toyama EQ, Ross DS, Lillemeier BF, Cantley LC, Yates JR, Shaw RJ. Quantitative In Vivo Proteomics of Metformin Response in Liver Reveals AMPK-Dependent and -Independent Signaling Networks. Cell Rep 2020; 29:3331-3348.e7. [PMID: 31801093 DOI: 10.1016/j.celrep.2019.10.117] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Revised: 08/20/2019] [Accepted: 10/28/2019] [Indexed: 12/25/2022] Open
Abstract
Metformin is the front-line treatment for type 2 diabetes worldwide. It acts via effects on glucose and lipid metabolism in metabolic tissues, leading to enhanced insulin sensitivity. Despite significant effort, the molecular basis for metformin response remains poorly understood, with a limited number of specific biochemical pathways studied to date. To broaden our understanding of hepatic metformin response, we combine phospho-protein enrichment in tissue from genetically engineered mice with a quantitative proteomics platform to enable the discovery and quantification of basophilic kinase substrates in vivo. We define proteins whose binding to 14-3-3 are acutely regulated by metformin treatment and/or loss of the serine/threonine kinase, LKB1. Inducible binding of 250 proteins following metformin treatment is observed, 44% of which proteins bind in a manner requiring LKB1. Beyond AMPK, metformin activates protein kinase D and MAPKAPK2 in an LKB1-independent manner, revealing additional kinases that may mediate aspects of metformin response. Deeper analysis uncovered substrates of AMPK in endocytosis and calcium homeostasis.
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Affiliation(s)
- Benjamin D Stein
- Molecular and Cell Biology Laboratory, The Salk Institute for Biological Studies, La Jolla, CA 92037, USA; Department of Molecular Medicine and Neurobiology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA; Meyer Cancer Center, Department of Medicine, Weill Cornell Medical College, New York, NY 10065, USA
| | - Diego Calzolari
- Department of Molecular Medicine and Neurobiology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA
| | - Kristina Hellberg
- Molecular and Cell Biology Laboratory, The Salk Institute for Biological Studies, La Jolla, CA 92037, USA
| | - Ying S Hu
- Nomis Center for Immunobiology and Microbial Pathogenesis, The Salk Institute for Biological Studies, La Jolla, CA 92037, USA
| | - Lin He
- Department of Molecular Medicine and Neurobiology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA
| | - Chien-Min Hung
- Molecular and Cell Biology Laboratory, The Salk Institute for Biological Studies, La Jolla, CA 92037, USA
| | - Erin Q Toyama
- Molecular and Cell Biology Laboratory, The Salk Institute for Biological Studies, La Jolla, CA 92037, USA
| | - Debbie S Ross
- Molecular and Cell Biology Laboratory, The Salk Institute for Biological Studies, La Jolla, CA 92037, USA
| | - Björn F Lillemeier
- Nomis Center for Immunobiology and Microbial Pathogenesis, The Salk Institute for Biological Studies, La Jolla, CA 92037, USA
| | - Lewis C Cantley
- Meyer Cancer Center, Department of Medicine, Weill Cornell Medical College, New York, NY 10065, USA
| | - John R Yates
- Department of Molecular Medicine and Neurobiology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA.
| | - Reuben J Shaw
- Molecular and Cell Biology Laboratory, The Salk Institute for Biological Studies, La Jolla, CA 92037, USA.
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26
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Zhou Q, Li J, Pang J, Fan F, Li S, Liu H. [Gefitinib inhibits glycolysis and induces programmed cell death in non-small cell lung cancer cells]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2020; 40:884-892. [PMID: 32895203 DOI: 10.12122/j.issn.1673-4254.2020.06.17] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
OBJECTIVE To observe the cell death pattern induced by gefitinib in non-small cell lung cancer A549 and H1975 cells and explore the possible mechanism in light of glycolysis. METHODS The inhibitory effects of gefitinib at 20, 30, or 40 μmol/L in A549 cells and at 20, 40, or 80 μmol/L in H1975 cells were examined using MTT assay. The changes of lactic acid level in the cells were determined with a lactic acid kit, and the expression levels of glycolysis-related proteins (PKM2 and HK2) and the proteins in PI3K-Akt-mTOR signaling pathway were detected using Western blotting. 2-NBDG was used for detecting glucose uptake capacity of the cells, and ATP kit was used to detect the intracellular ATP level. The mitochondrial membrane potential of the cells was examined with the JC-1 kit, and cell apoptosis was analyzed with Annexin V-FITC/PI double staining. The relative expression levels of the apoptotic proteins Bax and Bcl-2 and the autophagy marker protein LC3B were detected with Western blotting. RESULTS MTT assay showed that gefitinib inhibited the proliferation of A549 and H1975 cells in a time- and dose-dependent manner (P < 0.05). The IC50 of gefitinib at 24, 48 and 72 h was 48.6, 28.6 and 19.7 μmol/L in A549 cells and was 321.6, 49.1 and 14.6 μmol/L in H1975 cells, respectively. Gefitinib significantly lowered intracellular lactic acid level of the cells (P < 0.05) and down-regulated the expressions of PKM2 and HK2 proteins (P < 0.05) and PI3K-Akt-mTOR signaling pathway-associated proteins (P < 0.05). Gefitinib obviously inhibited glucose uptake and ATP levels in both A549 and H1975 cells (P < 0.05). Treatment with gefitinib induced obviously enhanced apoptosis in the cells, resulting in apoptosis rates of (10.77± 1.0)%, (14.5±0.4)%, (17.4±0.2)% and (32.1±0.6)% at 0, 20, 30 and 40 μmol/L in A549 cells (P < 0.05) and of (10.5±0.6)%, (13.2± 0.92)%, (18.9±0.98)% and (35.1±1.4)% at 0, 20, 40 and 80 μmol/L in H1975 cells, respectively (P < 0.05). The protein expression of Bax increased and that of Bcl-2 decreased following gefitinib treatment in the cells (P < 0.05). Gefitinib significantly increased autophagy in A549 and H1975 cells as shown by increased LC3B expressions following the treatment (P < 0.05). CONCLUSIONS Gefitinib can inhibit the proliferation, induce apoptosis and increase autophagy in A549 and H1975 cells. Gefitinib induces apoptosis of the cells possibly by affecting glycolysis and PI3K-Akt-mTOR signaling pathway.
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Affiliation(s)
- Qiao Zhou
- School of Clinical Medicine, Bengbu Medical College, Anhui Biochemical Pharmaceutical Engineering Technology Research Center, Bengbu 233000, China
| | - Jiahui Li
- School of Pharmacy, Bengbu Medical College, Anhui Biochemical Pharmaceutical Engineering Technology Research Center, Bengbu 233000, China
| | - Jinlong Pang
- School of Pharmacy, Bengbu Medical College, Anhui Biochemical Pharmaceutical Engineering Technology Research Center, Bengbu 233000, China
| | - Fangtian Fan
- School of Pharmacy, Bengbu Medical College, Anhui Biochemical Pharmaceutical Engineering Technology Research Center, Bengbu 233000, China
| | - Shanshan Li
- School of Pharmacy, Bengbu Medical College, Anhui Biochemical Pharmaceutical Engineering Technology Research Center, Bengbu 233000, China
| | - Hao Liu
- School of Pharmacy, Bengbu Medical College, Anhui Biochemical Pharmaceutical Engineering Technology Research Center, Bengbu 233000, China
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27
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Zou Z, Tsang JOL, Yan B, Chik KKH, Chan CCY, Cao J, Liang R, Tang K, Yin F, Ye ZW, Chu H, Chan JFW, Yuan S, Yuen KY. Metabolic Profiling Reveals Significant Perturbations of Intracellular Glucose Homeostasis in Enterovirus-Infected Cells. Metabolites 2020; 10:metabo10080302. [PMID: 32717953 PMCID: PMC7466099 DOI: 10.3390/metabo10080302] [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: 06/01/2020] [Revised: 07/20/2020] [Accepted: 07/21/2020] [Indexed: 02/08/2023] Open
Abstract
Enterovirus A71 (EV-A71) is a common cause of hand, foot, and mouth disease. Severe EV-A71 infections may be associated with life-threatening neurological complications. However, the pathogenic mechanisms underlying these severe clinical and pathological features remain incompletely understood. Metabolites are known to play critical roles in multiple stages of the replication cycles of viruses. The metabolic reprogramming induced by viral infections is essential for optimal virus replication and may be potential antiviral targets. In this study, we applied targeted metabolomics profiling to investigate the metabolic changes of induced pluripotent human stem cell (iPSC)-derived neural progenitor cells (NPCs) upon EV-A71 infection. A targeted quantitation of polar metabolites identified 14 candidates with altered expression profiles. A pathway enrichment analysis pinpointed glucose metabolic pathways as being highly perturbed upon EV-A71 infection. Gene silencing of one of the key enzymes of glycolysis, 6-phosphofructo-2-kinase (PFKFB3), significantly suppressed EV-A71 replication in vitro. Collectively, we demonstrated the feasibility to manipulate EV-A71-triggered host metabolic reprogramming as a potential anti-EV-A71 strategy.
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Affiliation(s)
- Zijiao Zou
- State Key Laboratory of Emerging Infectious Diseases, Carol Yu Centre for Infection, Department of Microbiology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong, China; (Z.Z.); (J.O.-L.T.); (B.Y.); (K.K.-H.C.); (C.C.-Y.C.); (J.C.); (R.L.); (K.T.); (Z.-W.Y.); (H.C.); (K.-Y.Y.)
| | - Jessica Oi-Ling Tsang
- State Key Laboratory of Emerging Infectious Diseases, Carol Yu Centre for Infection, Department of Microbiology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong, China; (Z.Z.); (J.O.-L.T.); (B.Y.); (K.K.-H.C.); (C.C.-Y.C.); (J.C.); (R.L.); (K.T.); (Z.-W.Y.); (H.C.); (K.-Y.Y.)
| | - Bingpeng Yan
- State Key Laboratory of Emerging Infectious Diseases, Carol Yu Centre for Infection, Department of Microbiology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong, China; (Z.Z.); (J.O.-L.T.); (B.Y.); (K.K.-H.C.); (C.C.-Y.C.); (J.C.); (R.L.); (K.T.); (Z.-W.Y.); (H.C.); (K.-Y.Y.)
| | - Kenn Ka-Heng Chik
- State Key Laboratory of Emerging Infectious Diseases, Carol Yu Centre for Infection, Department of Microbiology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong, China; (Z.Z.); (J.O.-L.T.); (B.Y.); (K.K.-H.C.); (C.C.-Y.C.); (J.C.); (R.L.); (K.T.); (Z.-W.Y.); (H.C.); (K.-Y.Y.)
| | - Chris Chun-Yiu Chan
- State Key Laboratory of Emerging Infectious Diseases, Carol Yu Centre for Infection, Department of Microbiology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong, China; (Z.Z.); (J.O.-L.T.); (B.Y.); (K.K.-H.C.); (C.C.-Y.C.); (J.C.); (R.L.); (K.T.); (Z.-W.Y.); (H.C.); (K.-Y.Y.)
| | - Jianli Cao
- State Key Laboratory of Emerging Infectious Diseases, Carol Yu Centre for Infection, Department of Microbiology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong, China; (Z.Z.); (J.O.-L.T.); (B.Y.); (K.K.-H.C.); (C.C.-Y.C.); (J.C.); (R.L.); (K.T.); (Z.-W.Y.); (H.C.); (K.-Y.Y.)
| | - Ronghui Liang
- State Key Laboratory of Emerging Infectious Diseases, Carol Yu Centre for Infection, Department of Microbiology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong, China; (Z.Z.); (J.O.-L.T.); (B.Y.); (K.K.-H.C.); (C.C.-Y.C.); (J.C.); (R.L.); (K.T.); (Z.-W.Y.); (H.C.); (K.-Y.Y.)
| | - Kaiming Tang
- State Key Laboratory of Emerging Infectious Diseases, Carol Yu Centre for Infection, Department of Microbiology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong, China; (Z.Z.); (J.O.-L.T.); (B.Y.); (K.K.-H.C.); (C.C.-Y.C.); (J.C.); (R.L.); (K.T.); (Z.-W.Y.); (H.C.); (K.-Y.Y.)
| | - Feifei Yin
- Hainan Medical University-The University of Hong Kong Joint Laboratory of Tropical Infectious Diseases, The University of Hong Kong, Pokfulam, Hong Kong, China;
| | - Zi-Wei Ye
- State Key Laboratory of Emerging Infectious Diseases, Carol Yu Centre for Infection, Department of Microbiology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong, China; (Z.Z.); (J.O.-L.T.); (B.Y.); (K.K.-H.C.); (C.C.-Y.C.); (J.C.); (R.L.); (K.T.); (Z.-W.Y.); (H.C.); (K.-Y.Y.)
| | - Hin Chu
- State Key Laboratory of Emerging Infectious Diseases, Carol Yu Centre for Infection, Department of Microbiology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong, China; (Z.Z.); (J.O.-L.T.); (B.Y.); (K.K.-H.C.); (C.C.-Y.C.); (J.C.); (R.L.); (K.T.); (Z.-W.Y.); (H.C.); (K.-Y.Y.)
| | - Jasper Fuk-Woo Chan
- State Key Laboratory of Emerging Infectious Diseases, Carol Yu Centre for Infection, Department of Microbiology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong, China; (Z.Z.); (J.O.-L.T.); (B.Y.); (K.K.-H.C.); (C.C.-Y.C.); (J.C.); (R.L.); (K.T.); (Z.-W.Y.); (H.C.); (K.-Y.Y.)
- Hainan Medical University-The University of Hong Kong Joint Laboratory of Tropical Infectious Diseases, The University of Hong Kong, Pokfulam, Hong Kong, China;
- Correspondence: (J.F.-W.C.); (S.Y.)
| | - Shuofeng Yuan
- State Key Laboratory of Emerging Infectious Diseases, Carol Yu Centre for Infection, Department of Microbiology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong, China; (Z.Z.); (J.O.-L.T.); (B.Y.); (K.K.-H.C.); (C.C.-Y.C.); (J.C.); (R.L.); (K.T.); (Z.-W.Y.); (H.C.); (K.-Y.Y.)
- Correspondence: (J.F.-W.C.); (S.Y.)
| | - Kwok-Yung Yuen
- State Key Laboratory of Emerging Infectious Diseases, Carol Yu Centre for Infection, Department of Microbiology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong, China; (Z.Z.); (J.O.-L.T.); (B.Y.); (K.K.-H.C.); (C.C.-Y.C.); (J.C.); (R.L.); (K.T.); (Z.-W.Y.); (H.C.); (K.-Y.Y.)
- Hainan Medical University-The University of Hong Kong Joint Laboratory of Tropical Infectious Diseases, The University of Hong Kong, Pokfulam, Hong Kong, China;
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28
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PFKFB2 regulates glycolysis and proliferation in pancreatic cancer cells. Mol Cell Biochem 2020; 470:115-129. [PMID: 32415418 DOI: 10.1007/s11010-020-03751-5] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Accepted: 05/08/2020] [Indexed: 12/27/2022]
Abstract
Tumor cells increase glucose metabolism through glycolysis and pentose phosphate pathways to meet the bioenergetic and biosynthetic demands of rapid cell proliferation. The family of 6-phosphofructo-2-kinase/fructose-2,6-bisphosphatases (PFKFB1-4) are key regulators of glucose metabolism via their synthesis of fructose-2,6-bisphosphate (F2,6BP), a potent activator of glycolysis. Previous studies have reported the co-expression of PFKFB isozymes, as well as the mRNA splice variants of particular PFKFB isozymes, suggesting non-redundant functions. Majority of the evidence demonstrating a requirement for PFKFB activity in increased glycolysis and oncogenic properties in tumor cells comes from studies on PFKFB3 and PFKFB4 isozymes. In this study, we show that the PFKFB2 isozyme is expressed in tumor cell lines of various origin, overexpressed and localizes to the nucleus in pancreatic adenocarcinoma, relative to normal pancreatic tissue. We then demonstrate the differential intracellular localization of two PFKFB2 mRNA splice variants and that, when ectopically expressed, cytoplasmically localized mRNA splice variant causes a greater increase in F2,6BP which coincides with an increased glucose uptake, as compared with the mRNA splice variant localizing to the nucleus. We then show that PFKFB2 expression is required for steady-state F2,6BP levels, glycolytic activity, and proliferation of pancreatic adenocarcinoma cells. In conclusion, this study may provide a rationale for detailed investigation of PFKFB2's requirement for the glycolytic and oncogenic phenotype of pancreatic adenocarcinoma cells.
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29
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Martinez Calejman C, Trefely S, Entwisle SW, Luciano A, Jung SM, Hsiao W, Torres A, Hung CM, Li H, Snyder NW, Villén J, Wellen KE, Guertin DA. mTORC2-AKT signaling to ATP-citrate lyase drives brown adipogenesis and de novo lipogenesis. Nat Commun 2020; 11:575. [PMID: 31996678 PMCID: PMC6989638 DOI: 10.1038/s41467-020-14430-w] [Citation(s) in RCA: 79] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Accepted: 12/10/2019] [Indexed: 01/09/2023] Open
Abstract
mTORC2 phosphorylates AKT in a hydrophobic motif site that is a biomarker of insulin sensitivity. In brown adipocytes, mTORC2 regulates glucose and lipid metabolism, however the mechanism has been unclear because downstream AKT signaling appears unaffected by mTORC2 loss. Here, by applying immunoblotting, targeted phosphoproteomics and metabolite profiling, we identify ATP-citrate lyase (ACLY) as a distinctly mTORC2-sensitive AKT substrate in brown preadipocytes. mTORC2 appears dispensable for most other AKT actions examined, indicating a previously unappreciated selectivity in mTORC2-AKT signaling. Rescue experiments suggest brown preadipocytes require the mTORC2/AKT/ACLY pathway to induce PPAR-gamma and establish the epigenetic landscape during differentiation. Evidence in mature brown adipocytes also suggests mTORC2 acts through ACLY to increase carbohydrate response element binding protein (ChREBP) activity, histone acetylation, and gluco-lipogenic gene expression. Substrate utilization studies additionally implicate mTORC2 in promoting acetyl-CoA synthesis from acetate through acetyl-CoA synthetase 2 (ACSS2). These data suggest that a principal mTORC2 action is controlling nuclear-cytoplasmic acetyl-CoA synthesis. mTORC2 activates Akt, a regulator of cell growth and metabolism, however, the role of mTORC2 in adipocytes is incompletely understood. Here the authors report that a mTORC2-Akt axis specifically activates ACLY to promote lipid synthesis and histone acetylation during brown adipocyte differentiation.
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Affiliation(s)
- C Martinez Calejman
- Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, MA, 01605, USA
| | - S Trefely
- Department of Cancer Biology, University of Pennsylvania, Philadelphia, PA, 19104, USA.,Abramson Family Cancer Research Institute, University of Pennsylvania, Philadelphia, PA, 19104, USA.,AJ Drexel Autism Institute, Drexel University, Philadelphia, PA, 19104, USA
| | - S W Entwisle
- Department of Genome Sciences, University of Washington, Seattle, WA, 98195, USA.,Program in Molecular and Cellular Biology, University of Washington, Seattle, WA, 98195, USA
| | - A Luciano
- Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, MA, 01605, USA
| | - S M Jung
- Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, MA, 01605, USA
| | - W Hsiao
- Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, MA, 01605, USA
| | - A Torres
- Department of Cancer Biology, University of Pennsylvania, Philadelphia, PA, 19104, USA.,Abramson Family Cancer Research Institute, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - C M Hung
- Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, MA, 01605, USA
| | - H Li
- Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, MA, 01605, USA
| | - N W Snyder
- AJ Drexel Autism Institute, Drexel University, Philadelphia, PA, 19104, USA
| | - J Villén
- Department of Genome Sciences, University of Washington, Seattle, WA, 98195, USA.,Program in Molecular and Cellular Biology, University of Washington, Seattle, WA, 98195, USA
| | - K E Wellen
- Department of Cancer Biology, University of Pennsylvania, Philadelphia, PA, 19104, USA.,Abramson Family Cancer Research Institute, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - D A Guertin
- Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, MA, 01605, USA. .,Department of Molecular, Cell and Cancer Biology, University of Massachusetts Medical School, Worcester, MA, 01605, USA.
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Lou PH, Lucchinetti E, Hersberger M, Clanachan AS, Zaugg M. Lipid Emulsion Containing High Amounts of n3 Fatty Acids (Omegaven) as Opposed to n6 Fatty Acids (Intralipid) Preserves Insulin Signaling and Glucose Uptake in Perfused Rat Hearts. Anesth Analg 2020; 130:37-48. [DOI: 10.1213/ane.0000000000004295] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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31
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Fasting-Refeeding Impacts Immune Cell Dynamics and Mucosal Immune Responses. Cell 2019; 178:1072-1087.e14. [DOI: 10.1016/j.cell.2019.07.047] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Revised: 04/30/2019] [Accepted: 07/25/2019] [Indexed: 02/07/2023]
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Wu Z, Wu J, Zhao Q, Fu S, Jin J. Emerging roles of aerobic glycolysis in breast cancer. Clin Transl Oncol 2019; 22:631-646. [PMID: 31359335 DOI: 10.1007/s12094-019-02187-8] [Citation(s) in RCA: 121] [Impact Index Per Article: 24.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Accepted: 07/05/2019] [Indexed: 12/25/2022]
Abstract
Altered aerobic glycolysis is a well-recognized characteristic of cancer cell energy metabolism, known as the Warburg effect. Even in the presence of abundant oxygen, a majority of tumor cells produce substantial amounts of energy through a high glycolytic metabolism, and breast cancer (BC) is no exception. Breast cancer continues to be the second leading cause of cancer-associated mortality in women worldwide. However, the precise role of aerobic glycolysis in the development of BC remains elusive. Therefore, the present review attempts to address the implication of key enzymes of the aerobic glycolytic pathway including hexokinase (HK), phosphofructokinase (PFK) and pyruvate kinase (PK), glucose transporters (GLUTs), together with related signaling pathways including protein kinase B(PI3K/AKT), mammalian target of rapamycin (mTOR) and adenosine monophosphate-activated protein kinase (AMPK) and transcription factors (c-myc, p53 and HIF-1) in the research of BC. Thus, the review of aerobic glycolysis in BC may evoke novel ideas for the BC treatment.
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Affiliation(s)
- Z Wu
- Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, People's Republic of China
| | - J Wu
- Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, People's Republic of China
| | - Q Zhao
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan, People's Republic of China.,South Sichuan Institute of Translational Medicine, Luzhou, Sichuan, People's Republic of China
| | - S Fu
- Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, People's Republic of China.
| | - J Jin
- Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, People's Republic of China.
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Liu H, Chen K, Wang L, Zeng X, Huang Z, Li M, Dong P, Chen X. miR-613 inhibits Warburg effect in gastric cancer by targeting PFKFB2. Biochem Biophys Res Commun 2019; 515:37-43. [PMID: 31122697 DOI: 10.1016/j.bbrc.2019.05.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Accepted: 05/01/2019] [Indexed: 02/06/2023]
Abstract
miR-613 has been demonstrated to play critical roles in tumorigenesis and progression of a various type of cancers. However, its role and expression significance remain unclear in gastric cancer (GC). We detected the expression of miR-613 in 176 paired GC tissues and adjacent normal tissues, and found that miR-613 was significantly downregulated in GC tissues and its downregulation was correlated with T stage, lymph node invasion and advanced AJCC stages. Moreover, miR-613 expression could be an independent prognostic factor of GC. Biological function analysis indicated that miR-613 inhibited cell proliferation and invasion. Further analysis suggested that miR-613 inhibited Warburg effect of GC cells. Mechanically, we identified that miR-613 could directly bind to the 3'UTR of PFKFB2, thereby suppressing the expression of PFKFB2, which in turn, regulating glycolysis metabolism and cell growth. In conclusion, miR-613 served as a tumor suppressor by targeting PFKFB2, indicating that detecting miR-613 and modulation of miR-613 expression could be potential marker and clinical approach in GC patients.
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Affiliation(s)
- Haipeng Liu
- Department of General Surgery 3, Lanzhou University Second Hospital, Lanzhou University, Lanzhou, Gansu, 730030, China.
| | - Kang Chen
- Department of General Surgery 3, Lanzhou University Second Hospital, Lanzhou University, Lanzhou, Gansu, 730030, China
| | - Li Wang
- Department of General Surgery 3, Lanzhou University Second Hospital, Lanzhou University, Lanzhou, Gansu, 730030, China
| | - Xiangting Zeng
- Department of General Surgery 3, Lanzhou University Second Hospital, Lanzhou University, Lanzhou, Gansu, 730030, China
| | - Zeping Huang
- Department of General Surgery 3, Lanzhou University Second Hospital, Lanzhou University, Lanzhou, Gansu, 730030, China
| | - Mei Li
- Department of General Surgery 3, Lanzhou University Second Hospital, Lanzhou University, Lanzhou, Gansu, 730030, China
| | - Peng Dong
- Department of General Surgery 3, Lanzhou University Second Hospital, Lanzhou University, Lanzhou, Gansu, 730030, China
| | - Xiao Chen
- Department of General Surgery 3, Lanzhou University Second Hospital, Lanzhou University, Lanzhou, Gansu, 730030, China
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Shi H, Yao R, Lian S, Liu P, Liu Y, Yang YY, Yang H, Li S. Regulating glycolysis, the TLR4 signal pathway and expression of RBM3 in mouse liver in response to acute cold exposure. Stress 2019; 22:366-376. [PMID: 30821572 DOI: 10.1080/10253890.2019.1568987] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
At low temperatures, the liver increases glucose utilization and expresses RNA-binding motif 3 (RBM3) to cope with cold exposure. In this study, the expression of heat shock protein 70 (HSP70), Toll-like receptor 4 (TLR4), bone marrow differentiation factor 88 (MYD88), and phosphorylated nuclear factor-κB (NF-κB) was consistent with fluctuations in insulin in fasted cold-exposed mice. We also found up-regulation of peroxisome proliferator-activated receptor gamma coactivator 1-alpha (PGC-1α) in acute cold exposure with a decrease in core body temperature. RBM3 transcription and translation were activated 2 h after cold exposure. The anti-apoptotic factor Bcl-2/Bax ratio also increased, while expression of apoptosis factors: cleaved caspase-3, cleaved poly(ADP-ribose)polymerase 1 (PARP-1) and cytochrome-c (Cyt-c) was unchanged. Liver glycogen was depleted after 2 h of cold exposure, and blood glucose decreased after 4 h. Glycogen synthase kinase 3β (GSK3β) phosphorylation continued to increase to promote hepatic glycogen synthesis. We found a high level of protein kinase B (AKT) phosphorylation after 6 h of cold exposure. In addition, we demonstrated that after cold exposure for 2 h, in the liver, continued phosphorylation of fructose-2,6-diphosphate (PFKFB2) and decreased accumulation of glycogen intermediates fructose-1,6-diphosphate (FDP) and pyruvic acid (PA). In summary, the liver responds to cold exposure through a number of different pathways, including activation of HSP70/TLR4 signaling pathways, up-regulation of RBM3 expression, and increased glycolysis and glycogen synthesis. We propose a possible signaling pathway in which regulation of RBM3 expression by the liver affects the AKT metabolic signaling pathway. Lay summary In response to changes in ambient temperature, mice regulate global metabolism and gene expression through hormones. This study focused on the effects of environmental hypothermia on molecular pathways of glucose metabolism in the liver, which is the important metabolic organ in mice. This provides a basis for further study of mice against cold exposure damage.
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Affiliation(s)
- Hongzhao Shi
- a College of Animal Science and Veterinary Medicine , Heilongjiang Bayi Agricultural University , Daqing , PR China
| | - Ruizhi Yao
- a College of Animal Science and Veterinary Medicine , Heilongjiang Bayi Agricultural University , Daqing , PR China
| | - Shuai Lian
- a College of Animal Science and Veterinary Medicine , Heilongjiang Bayi Agricultural University , Daqing , PR China
| | - Peng Liu
- a College of Animal Science and Veterinary Medicine , Heilongjiang Bayi Agricultural University , Daqing , PR China
| | - Yang Liu
- a College of Animal Science and Veterinary Medicine , Heilongjiang Bayi Agricultural University , Daqing , PR China
| | - Yu Ying Yang
- a College of Animal Science and Veterinary Medicine , Heilongjiang Bayi Agricultural University , Daqing , PR China
| | - Huanmin Yang
- a College of Animal Science and Veterinary Medicine , Heilongjiang Bayi Agricultural University , Daqing , PR China
| | - Shize Li
- a College of Animal Science and Veterinary Medicine , Heilongjiang Bayi Agricultural University , Daqing , PR China
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35
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Zhao S, Feng J, Li C, Gao H, Lv P, Li J, Liu Q, He Y, Wang H, Gong L, Li D, Zhang Y. Phosphoproteome profiling revealed abnormally phosphorylated AMPK and ATF2 involved in glucose metabolism and tumorigenesis of GH-PAs. J Endocrinol Invest 2019; 42:137-148. [PMID: 29691806 DOI: 10.1007/s40618-018-0890-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Accepted: 04/11/2018] [Indexed: 01/04/2023]
Abstract
PURPOSE Protein phosphorylation plays a key role in tumorigenesis and progression. However, little is known about the phosphoproteome profiles of growth hormone-secreting pituitary adenomas (GH-PAs). The aim of this study was to identify critical biomarkers and signaling pathways that might play important roles in GH-PAs and may, therefore, represent potential therapeutic targets. METHODS The differential phosphoprotein expression patterns involved in GH-PAs were investigated by nano-LC-MS/MS in a group of samples. The phosphoprotein expression data were analyzed by bioinformatics. The expression levels of the candidate phosphorylated AMPK (ser496) and ATF2 (ser112) were validated by Western blot analysis in another group of samples. RESULTS A total of 1213 phosphorylated protein sites corresponding to 667 proteins were significantly different between GH-PAs and healthy pituitary glands. Among these phosphorylated sites, 871 exhibited lower levels of phosphorylation in GH-PAs. Moreover, 140 novel phosphosites corresponding to 93 proteins were differentially phosphorylated between GH-PAs and healthy pituitary glands, 101 of which showed decreased phosphorylation in GH-PAs. The majority of differentially expressed phosphorylated proteins were significantly enriched in glycolysis and the AMPK signaling pathway in GH-PAs. The AMPK signaling pathway was demonstrated to be inhibited in GH-PAs by pathway activity analysis (z score = - 2.324). Notably, the phosphorylated levels of AMPK (ser496) and ATF2 (ser112) were significantly lower in GH-PAs than in healthy pituitary glands. CONCLUSION These findings suggest that decreased phosphorylation of the AMPK/ATF2 pathway may be critical for glucose metabolism and tumorigenesis in GH-PAs.
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Affiliation(s)
- S Zhao
- Beijing Neurosurgical Institute, Capital Medical University, TianTanXiLi6, Beijing, 100050, China.
| | - J Feng
- Beijing Neurosurgical Institute, Capital Medical University, TianTanXiLi6, Beijing, 100050, China
| | - C Li
- Beijing Neurosurgical Institute, Capital Medical University, TianTanXiLi6, Beijing, 100050, China
| | - H Gao
- Beijing Neurosurgical Institute, Capital Medical University, TianTanXiLi6, Beijing, 100050, China
| | - P Lv
- Beijing Neurosurgical Institute, Capital Medical University, TianTanXiLi6, Beijing, 100050, China
- Chinese Medical Association, Beijing, 100710, China
| | - J Li
- Beijing Neurosurgical Institute, Capital Medical University, TianTanXiLi6, Beijing, 100050, China
| | - Q Liu
- Beijing Neurosurgical Institute, Capital Medical University, TianTanXiLi6, Beijing, 100050, China
| | - Y He
- Beijing Neurosurgical Institute, Capital Medical University, TianTanXiLi6, Beijing, 100050, China
| | - H Wang
- Beijing Neurosurgical Institute, Capital Medical University, TianTanXiLi6, Beijing, 100050, China
| | - L Gong
- Beijing Neurosurgical Institute, Capital Medical University, TianTanXiLi6, Beijing, 100050, China
| | - D Li
- Beijing Neurosurgical Institute, Capital Medical University, TianTanXiLi6, Beijing, 100050, China
| | - Y Zhang
- Beijing Neurosurgical Institute, Capital Medical University, TianTanXiLi6, Beijing, 100050, China.
- Beijing Tiantan Hospital, Capital Medical University, Beijing, 100050, China.
- Beijing Institute for Brain Disorders Brain Tumor Center, Capital Medical University, Beijing, 100050, China.
- China National Clinical Research Center for Neurological Diseases, Beijing, 100050, China.
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Bartrons R, Simon-Molas H, Rodríguez-García A, Castaño E, Navarro-Sabaté À, Manzano A, Martinez-Outschoorn UE. Fructose 2,6-Bisphosphate in Cancer Cell Metabolism. Front Oncol 2018; 8:331. [PMID: 30234009 PMCID: PMC6131595 DOI: 10.3389/fonc.2018.00331] [Citation(s) in RCA: 74] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Accepted: 08/01/2018] [Indexed: 01/28/2023] Open
Abstract
For a long time, pioneers in the field of cancer cell metabolism, such as Otto Warburg, have focused on the idea that tumor cells maintain high glycolytic rates even with adequate oxygen supply, in what is known as aerobic glycolysis or the Warburg effect. Recent studies have reported a more complex situation, where the tumor ecosystem plays a more critical role in cancer progression. Cancer cells display extraordinary plasticity in adapting to changes in their tumor microenvironment, developing strategies to survive and proliferate. The proliferation of cancer cells needs a high rate of energy and metabolic substrates for biosynthesis of biomolecules. These requirements are met by the metabolic reprogramming of cancer cells and others present in the tumor microenvironment, which is essential for tumor survival and spread. Metabolic reprogramming involves a complex interplay between oncogenes, tumor suppressors, growth factors and local factors in the tumor microenvironment. These factors can induce overexpression and increased activity of glycolytic isoenzymes and proteins in stromal and cancer cells which are different from those expressed in normal cells. The fructose-6-phosphate/fructose-1,6-bisphosphate cycle, catalyzed by 6-phosphofructo-1-kinase/fructose 1,6-bisphosphatase (PFK1/FBPase1) isoenzymes, plays a key role in controlling glycolytic rates. PFK1/FBpase1 activities are allosterically regulated by fructose-2,6-bisphosphate, the product of the enzymatic activity of the dual kinase/phosphatase family of enzymes: 6-phosphofructo-2-kinase/fructose 2,6-bisphosphatase (PFKFB1-4) and TP53-induced glycolysis and apoptosis regulator (TIGAR), which show increased expression in a significant number of tumor types. In this review, the function of these isoenzymes in the regulation of metabolism, as well as the regulatory factors modulating their expression and activity in the tumor ecosystem are discussed. Targeting these isoenzymes, either directly or by inhibiting their activating factors, could be a promising approach for treating cancers.
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Affiliation(s)
- Ramon Bartrons
- Unitat de Bioquímica, Departament de Ciències Fisiològiques, Universitat de Barcelona, Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), Catalunya, Spain
| | - Helga Simon-Molas
- Unitat de Bioquímica, Departament de Ciències Fisiològiques, Universitat de Barcelona, Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), Catalunya, Spain
| | - Ana Rodríguez-García
- Unitat de Bioquímica, Departament de Ciències Fisiològiques, Universitat de Barcelona, Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), Catalunya, Spain
| | - Esther Castaño
- Centres Científics i Tecnològics, Universitat de Barcelona, Catalunya, Spain
| | - Àurea Navarro-Sabaté
- Unitat de Bioquímica, Departament de Ciències Fisiològiques, Universitat de Barcelona, Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), Catalunya, Spain
| | - Anna Manzano
- Unitat de Bioquímica, Departament de Ciències Fisiològiques, Universitat de Barcelona, Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), Catalunya, Spain
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Lee JH, Liu R, Li J, Wang Y, Tan L, Li XJ, Qian X, Zhang C, Xia Y, Xu D, Guo W, Ding Z, Du L, Zheng Y, Chen Q, Lorenzi PL, Mills GB, Jiang T, Lu Z. EGFR-Phosphorylated Platelet Isoform of Phosphofructokinase 1 Promotes PI3K Activation. Mol Cell 2018; 70:197-210.e7. [PMID: 29677490 PMCID: PMC6114939 DOI: 10.1016/j.molcel.2018.03.018] [Citation(s) in RCA: 112] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Revised: 02/26/2018] [Accepted: 03/15/2018] [Indexed: 02/05/2023]
Abstract
EGFR activates phosphatidylinositide 3-kinase (PI3K), but the mechanism underlying this activation is not completely understood. We demonstrated here that EGFR activation resulted in lysine acetyltransferase 5 (KAT5)-mediated K395 acetylation of the platelet isoform of phosphofructokinase 1 (PFKP) and subsequent translocation of PFKP to the plasma membrane, where the PFKP was phosphorylated at Y64 by EGFR. Phosphorylated PFKP binds to the N-terminal SH2 domain of p85α, which is distinct from binding of Gab1 to the C-terminal SH2 domain of p85α, and recruited p85α to the plasma membrane resulting in PI3K activation. PI3K-dependent AKT activation results in enhanced phosphofructokinase 2 (PFK2) phosphorylation and production of fructose-2,6-bisphosphate, which in turn promotes PFK1 activation. PFKP Y64 phosphorylation-enhanced PI3K/AKT-dependent PFK1 activation and GLUT1 expression promoted the Warburg effect, tumor cell proliferation, and brain tumorigenesis. These findings underscore the instrumental role of PFKP in PI3K activation and enhanced glycolysis through PI3K/AKT-dependent positive-feedback regulation.
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Affiliation(s)
- Jong-Ho Lee
- Brain Tumor Center and Department of Neuro-Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, USA
| | - Rui Liu
- Brain Tumor Center and Department of Neuro-Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, USA; State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, China
| | - Jing Li
- Brain Tumor Center and Department of Neuro-Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, USA; State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, China
| | - Yugang Wang
- Brain Tumor Center and Department of Neuro-Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, USA
| | - Lin Tan
- Department of Bioinformatics and Computational Biology and The Proteomics and Metabolomics Core Facility, The University of Texas MD Anderson Cancer Center, Houston, Texas 77054, USA
| | - Xin-Jian Li
- Brain Tumor Center and Department of Neuro-Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, USA
| | - Xu Qian
- Brain Tumor Center and Department of Neuro-Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, USA
| | - Chuanbao Zhang
- Beijing Neurosurgical Institute, Capital Medical University, Beijing 100050, China
| | - Yan Xia
- Brain Tumor Center and Department of Neuro-Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, USA
| | - Daqian Xu
- Brain Tumor Center and Department of Neuro-Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, USA
| | - Wei Guo
- Department of Systems Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, USA
| | - Zhiyong Ding
- Department of Systems Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, USA
| | - Linyong Du
- Brain Tumor Center and Department of Neuro-Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, USA
| | - Yanhua Zheng
- Brain Tumor Center and Department of Neuro-Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, USA
| | - Qianming Chen
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, China
| | - Philip L Lorenzi
- Department of Bioinformatics and Computational Biology and The Proteomics and Metabolomics Core Facility, The University of Texas MD Anderson Cancer Center, Houston, Texas 77054, USA
| | - Gordon B Mills
- Department of Systems Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, USA
| | - Tao Jiang
- Beijing Neurosurgical Institute, Capital Medical University, Beijing 100050, China
| | - Zhimin Lu
- Brain Tumor Center and Department of Neuro-Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, USA; Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, USA; Cancer Biology Program, MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences, The University of Texas, Houston, Texas 77030, USA.
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An Z, Aksoy O, Zheng T, Fan QW, Weiss WA. Epidermal growth factor receptor and EGFRvIII in glioblastoma: signaling pathways and targeted therapies. Oncogene 2018; 37:1561-1575. [PMID: 29321659 PMCID: PMC5860944 DOI: 10.1038/s41388-017-0045-7] [Citation(s) in RCA: 351] [Impact Index Per Article: 58.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Revised: 10/04/2017] [Accepted: 10/05/2017] [Indexed: 01/05/2023]
Abstract
Amplification of epidermal growth factor receptor (EGFR) and its active mutant EGFRvIII occurs frequently in glioblastoma (GBM). While EGFR and EGFRvIII play critical roles in pathogenesis, targeted therapy with EGFR-tyrosine kinase inhibitors (TKIs) or antibodies has only shown limited efficacy in patients. Here we discuss signaling pathways mediated by EGFR/EGFRvIII, current therapeutics, and novel strategies to target EGFR/EGFRvIII-amplified GBM.
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Affiliation(s)
- Zhenyi An
- Department of Neurology, University of California, San Francisco, CA, USA
| | - Ozlem Aksoy
- Department of Neurology, University of California, San Francisco, CA, USA
| | - Tina Zheng
- Department of Neurology, University of California, San Francisco, CA, USA
| | - Qi-Wen Fan
- Department of Neurology, University of California, San Francisco, CA, USA
| | - William A Weiss
- Department of Neurology, University of California, San Francisco, CA, USA.
- Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, CA, USA.
- Department of Neurological Surgery, University of California, San Francisco, CA, USA.
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Houles T, Gravel SP, Lavoie G, Shin S, Savall M, Méant A, Grondin B, Gaboury L, Yoon SO, St-Pierre J, Roux PP. RSK Regulates PFK-2 Activity to Promote Metabolic Rewiring in Melanoma. Cancer Res 2018; 78:2191-2204. [DOI: 10.1158/0008-5472.can-17-2215] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Revised: 08/03/2017] [Accepted: 02/06/2018] [Indexed: 11/16/2022]
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40
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Baek KI, Li R, Jen N, Choi H, Kaboodrangi A, Ping P, Liem D, Beebe T, Hsiai TK. Flow-Responsive Vascular Endothelial Growth Factor Receptor-Protein Kinase C Isoform Epsilon Signaling Mediates Glycolytic Metabolites for Vascular Repair. Antioxid Redox Signal 2018; 28:31-43. [PMID: 28762754 PMCID: PMC5695747 DOI: 10.1089/ars.2017.7044] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Revised: 07/31/2017] [Accepted: 07/31/2017] [Indexed: 12/19/2022]
Abstract
AIMS Hemodynamic shear stress participates in maintaining vascular redox status. Elucidating flow-mediated endothelial metabolites enables us to discover metabolic biomarkers and therapeutic targets. We posited that flow-responsive vascular endothelial growth factor receptor (VEGFR)-protein kinase C isoform epsilon (PKCɛ)-6-phosphofructo-2-kinase/fructose-2,6-biphosphatase 3 (PFKFB3) signaling modulates glycolytic metabolites for vascular repair. RESULTS Bidirectional oscillatory flow (oscillatory shear stress [OSS]: 0.1 ± 3 dyne·cm-2 at 1 Hz) upregulated VEGFR-dependent PKCɛ expression to a greater degree than did unidirectional pulsatile flow (pulsatile shear stress [PSS]: 23 ± 8 dyne·cm-2 at 1 Hz) in human aortic endothelial cells (p < 0.05, n = 3). PSS and OSS further upregulated PKCɛ-dependent PFKFB3 expression for glycolysis (p < 0.05, n = 4). Constitutively active PKCɛ increased, whereas dominant-negative PKCɛ reduced both basal and maximal extracellular acidification rates for glycolytic flux (p < 0.01, n = 4). Metabolomic analysis demonstrated an increase in PKCɛ-dependent glycolytic metabolite, dihydroxyacetone (DHA), but a decrease in gluconeogenic metabolite, aspartic acid (p < 0.05 vs. control, n = 6). In a New Zealand White rabbit model, both PKCɛ and PFKFB3 immunostaining was prominent in the PSS- and OSS-exposed aortic arch and descending aorta. In a transgenic Tg(flk-1:EGFP) zebrafish model, GATA-1a morpholino oligonucleotide injection (to reduce viscosity-dependent shear stress) impaired vascular regeneration after tail amputation (p < 0.01, n = 20), which was restored with PKCɛ messenger RNA (mRNA) rescue (p < 0.05, n = 5). As a corollary, siPKCɛ inhibited tube formation and vascular repair, which were restored by DHA treatment in our Matrigel and zebrafish models. Innovation and Conclusion: Flow-sensitive VEGFR-PKCɛ-PFKFB3 signaling increases the glycolytic metabolite, dihydroxyacetone, to promote vascular repair. Antioxid. Redox Signal. 28, 31-43.
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Affiliation(s)
- Kyung In Baek
- 1 Department of Bioengineering, School of Engineering and Applied Science, University of California , Los Angeles, Los Angeles, California
| | - Rongsong Li
- 2 Division of Cardiology, Department of Medicine, University of California , Los Angeles, Los Angeles, California
| | - Nelson Jen
- 1 Department of Bioengineering, School of Engineering and Applied Science, University of California , Los Angeles, Los Angeles, California
| | - Howard Choi
- 2 Division of Cardiology, Department of Medicine, University of California , Los Angeles, Los Angeles, California
| | - Amir Kaboodrangi
- 1 Department of Bioengineering, School of Engineering and Applied Science, University of California , Los Angeles, Los Angeles, California
| | - Peipei Ping
- 2 Division of Cardiology, Department of Medicine, University of California , Los Angeles, Los Angeles, California
- 3 Department of Physiology, School of Medicine, University of California , Los Angeles, Los Angeles, California
| | - David Liem
- 2 Division of Cardiology, Department of Medicine, University of California , Los Angeles, Los Angeles, California
| | - Tyler Beebe
- 1 Department of Bioengineering, School of Engineering and Applied Science, University of California , Los Angeles, Los Angeles, California
| | - Tzung K Hsiai
- 1 Department of Bioengineering, School of Engineering and Applied Science, University of California , Los Angeles, Los Angeles, California
- 2 Division of Cardiology, Department of Medicine, University of California , Los Angeles, Los Angeles, California
- 3 Department of Physiology, School of Medicine, University of California , Los Angeles, Los Angeles, California
- 4 Greater Los Angeles VA Healthcare System , Los Angeles, California
- 5 Department of Medical Engineering, California Institute of Technology , Pasadena, California
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41
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Hung YP, Teragawa C, Kosaisawe N, Gillies TE, Pargett M, Minguet M, Distor K, Rocha-Gregg BL, Coloff JL, Keibler MA, Stephanopoulos G, Yellen G, Brugge JS, Albeck JG. Akt regulation of glycolysis mediates bioenergetic stability in epithelial cells. eLife 2017; 6:27293. [PMID: 29239720 PMCID: PMC5730373 DOI: 10.7554/elife.27293] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Accepted: 12/05/2017] [Indexed: 12/26/2022] Open
Abstract
Cells use multiple feedback controls to regulate metabolism in response to nutrient and signaling inputs. However, feedback creates the potential for unstable network responses. We examined how concentrations of key metabolites and signaling pathways interact to maintain homeostasis in proliferating human cells, using fluorescent reporters for AMPK activity, Akt activity, and cytosolic NADH/NAD+ redox. Across various conditions, including glycolytic or mitochondrial inhibition or cell proliferation, we observed distinct patterns of AMPK activity, including both stable adaptation and highly dynamic behaviors such as periodic oscillations and irregular fluctuations that indicate a failure to reach a steady state. Fluctuations in AMPK activity, Akt activity, and cytosolic NADH/NAD+ redox state were temporally linked in individual cells adapting to metabolic perturbations. By monitoring single-cell dynamics in each of these contexts, we identified PI3K/Akt regulation of glycolysis as a multifaceted modulator of single-cell metabolic dynamics that is required to maintain metabolic stability in proliferating cells.
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Affiliation(s)
- Yin P Hung
- Department of Cell Biology, Harvard Medical School, Boston, United States.,Department of Neurobiology, Harvard Medical School, Boston, United States.,Department of Pathology, Brigham and Women's Hospital, Boston, United States
| | - Carolyn Teragawa
- Department of Molecular and Cellular Biology, University of California, Davis, United States
| | - Nont Kosaisawe
- Department of Molecular and Cellular Biology, University of California, Davis, United States
| | - Taryn E Gillies
- Department of Molecular and Cellular Biology, University of California, Davis, United States
| | - Michael Pargett
- Department of Molecular and Cellular Biology, University of California, Davis, United States
| | - Marta Minguet
- Department of Molecular and Cellular Biology, University of California, Davis, United States
| | - Kevin Distor
- Department of Molecular and Cellular Biology, University of California, Davis, United States
| | - Briana L Rocha-Gregg
- Department of Molecular and Cellular Biology, University of California, Davis, United States
| | - Jonathan L Coloff
- Department of Cell Biology, Harvard Medical School, Boston, United States
| | - Mark A Keibler
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, United States
| | - Gregory Stephanopoulos
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, United States
| | - Gary Yellen
- Department of Neurobiology, Harvard Medical School, Boston, United States
| | - Joan S Brugge
- Department of Cell Biology, Harvard Medical School, Boston, United States
| | - John G Albeck
- Department of Molecular and Cellular Biology, University of California, Davis, United States
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42
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Rodríguez-García A, Samsó P, Fontova P, Simon-Molas H, Manzano A, Castaño E, Rosa JL, Martinez-Outshoorn U, Ventura F, Navarro-Sabaté À, Bartrons R. TGF-β1 targets Smad, p38 MAPK, and PI3K/Akt signaling pathways to induce PFKFB3 gene expression and glycolysis in glioblastoma cells. FEBS J 2017; 284:3437-3454. [DOI: 10.1111/febs.14201] [Citation(s) in RCA: 94] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Revised: 07/25/2017] [Accepted: 08/16/2017] [Indexed: 12/15/2022]
Affiliation(s)
- Ana Rodríguez-García
- Unitat de Bioquímica; Departament de Ciències Fisiològiques; IDIBELL; Universitat de Barcelona; Spain
| | - Paula Samsó
- Unitat de Bioquímica; Departament de Ciències Fisiològiques; IDIBELL; Universitat de Barcelona; Spain
| | - Pere Fontova
- Unitat de Bioquímica; Departament de Ciències Fisiològiques; IDIBELL; Universitat de Barcelona; Spain
| | - Helga Simon-Molas
- Unitat de Bioquímica; Departament de Ciències Fisiològiques; IDIBELL; Universitat de Barcelona; Spain
| | - Anna Manzano
- Unitat de Bioquímica; Departament de Ciències Fisiològiques; IDIBELL; Universitat de Barcelona; Spain
| | - Esther Castaño
- Centres Científics i Tecnològics; Universitat de Barcelona; Spain
| | - Jose Luis Rosa
- Unitat de Bioquímica; Departament de Ciències Fisiològiques; IDIBELL; Universitat de Barcelona; Spain
| | - Ubaldo Martinez-Outshoorn
- Department of Medical Oncology; Sidney Kimmel Cancer Center; Thomas Jefferson University; Philadelphia PA USA
| | - Francesc Ventura
- Unitat de Bioquímica; Departament de Ciències Fisiològiques; IDIBELL; Universitat de Barcelona; Spain
| | - Àurea Navarro-Sabaté
- Unitat de Bioquímica; Departament de Ciències Fisiològiques; IDIBELL; Universitat de Barcelona; Spain
- Centres Científics i Tecnològics; Universitat de Barcelona; Spain
| | - Ramon Bartrons
- Unitat de Bioquímica; Departament de Ciències Fisiològiques; IDIBELL; Universitat de Barcelona; Spain
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Sreedhar A, Petruska P, Miriyala S, Panchatcharam M, Zhao Y. UCP2 overexpression enhanced glycolysis via activation of PFKFB2 during skin cell transformation. Oncotarget 2017; 8:95504-95515. [PMID: 29221144 PMCID: PMC5707038 DOI: 10.18632/oncotarget.20762] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2017] [Accepted: 08/03/2017] [Indexed: 01/01/2023] Open
Abstract
Uncoupling protein 2 (UCP2) is an inner mitochondrial membrane transporter which is often upregulated in human cancers. However, how this anion transporter affects tumorigenesis is not well understood. Using the skin cell transformation JB6 model, we demonstrated that UCP2 overexpression activated phosphofructokinase 2/fructose-2,6-bisphosphatase 2 (PFKFB2), a key regulator of glycolysis. In conjunction, upregulation of PFKFB2 expression correlated with elevated fructose 2,6-bisphosphate (Fru-2,6-P2) levels, 6-phosphofructo-1-kinase (PFK-1) activity, glucose uptake, and lactate production. Inhibiting PFKFB2 expression suppressed UCP2-mediated skin cell transformation, decreased cell proliferation, and enhanced mitochondrial respiration, while dampening aerobic glycolysis. The AKT signaling pathway was activated in the UCP2 overexpressed cells; furthermore, the activated AKT signaling contributed to the activation of PFKFB2. Whereas AKT inactivation blocked PFKFB2 activation, suggesting that AKT activation is an important step in PFKFB2 activation. Collectively, our data suggest that UCP2 is a critical regulator of cellular metabolism during cell transformation. Our data also demonstrate a potentially novel mechanism to understand UCP2's tumor-promoting role, which is through the AKT-dependent activation of PFKFB2 and thereby, the metabolic shift to glycolysis (the Warburg effect).
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Affiliation(s)
- Annapoorna Sreedhar
- Department of Pharmacology, Toxicology & Neuroscience, LSU Health Sciences Center in Shreveport, Shreveport, LA 71130, USA
| | - Petra Petruska
- Department of Pharmacology, Toxicology & Neuroscience, LSU Health Sciences Center in Shreveport, Shreveport, LA 71130, USA
| | - Sumitra Miriyala
- Department of Anatomy and Cell Biology, LSU Health Sciences Center in Shreveport, Shreveport, LA 71130, USA
| | - Manikandan Panchatcharam
- Department of Anatomy and Cell Biology, LSU Health Sciences Center in Shreveport, Shreveport, LA 71130, USA
| | - Yunfeng Zhao
- Department of Pharmacology, Toxicology & Neuroscience, LSU Health Sciences Center in Shreveport, Shreveport, LA 71130, USA
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Integration of flux measurements to resolve changes in anabolic and catabolic metabolism in cardiac myocytes. Biochem J 2017; 474:2785-2801. [PMID: 28706006 PMCID: PMC5545928 DOI: 10.1042/bcj20170474] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Revised: 07/11/2017] [Accepted: 07/12/2017] [Indexed: 12/18/2022]
Abstract
Although ancillary pathways of glucose metabolism are critical for synthesizing cellular building blocks and modulating stress responses, how they are regulated remains unclear. In the present study, we used radiometric glycolysis assays, [13C6]-glucose isotope tracing, and extracellular flux analysis to understand how phosphofructokinase (PFK)-mediated changes in glycolysis regulate glucose carbon partitioning into catabolic and anabolic pathways. Expression of kinase-deficient or phosphatase-deficient 6-phosphofructo-2-kinase/fructose-2,6-bisphosphatase in rat neonatal cardiomyocytes co-ordinately regulated glycolytic rate and lactate production. Nevertheless, in all groups, >40% of glucose consumed by the cells was unaccounted for via catabolism to pyruvate, which suggests entry of glucose carbons into ancillary pathways branching from metabolites formed in the preparatory phase of glycolysis. Analysis of 13C fractional enrichment patterns suggests that PFK activity regulates glucose carbon incorporation directly into the ribose and the glycerol moieties of purines and phospholipids, respectively. Pyrimidines, UDP-N-acetylhexosamine, and the fatty acyl chains of phosphatidylinositol and triglycerides showed lower 13C incorporation under conditions of high PFK activity; the isotopologue 13C enrichment pattern of each metabolite indicated limitations in mitochondria-engendered aspartate, acetyl CoA and fatty acids. Consistent with this notion, high glycolytic rate diminished mitochondrial activity and the coupling of glycolysis to glucose oxidation. These findings suggest that a major portion of intracellular glucose in cardiac myocytes is apportioned for ancillary biosynthetic reactions and that PFK co-ordinates the activities of the pentose phosphate, hexosamine biosynthetic, and glycerolipid synthesis pathways by directly modulating glycolytic intermediate entry into auxiliary glucose metabolism pathways and by indirectly regulating mitochondrial cataplerosis.
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45
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Allosteric regulation of metabolism in cancer: endogenous mechanisms and considerations for drug design. Curr Opin Biotechnol 2017; 48:102-110. [PMID: 28431259 DOI: 10.1016/j.copbio.2017.03.022] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Accepted: 03/24/2017] [Indexed: 01/21/2023]
Abstract
Alterations in metabolic processes have been linked to various diseases, including cancer. Although gene expression can dictate long-term metabolic adaptation, many metabolic changes found in cancer are associated with altered allosteric properties of the underlying enzymes. Small molecule-protein interactions and intracellular signalling converge to orchestrate these allosteric mechanisms, which, emerging evidence suggests, constitute a promising therapeutic avenue. In this review we focus on glucose and energy metabolism to illustrate the role of allostery in cancer physiology and we discuss approaches to streamline the process of targeting aberrant allosteric pathways with small molecules.
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46
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Madhunapantula SV, Robertson GP. Targeting protein kinase-b3 (akt3) signaling in melanoma. Expert Opin Ther Targets 2017; 21:273-290. [PMID: 28064546 DOI: 10.1080/14728222.2017.1279147] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
INTRODUCTION Deregulated Akt activity leading to apoptosis inhibition, enhanced proliferation and drug resistance has been shown to be responsible for 35-70% of advanced metastatic melanomas. Of the three isoforms, the majority of melanomas have elevated Akt3 expression and activity. Hence, potent inhibitors targeting Akt are urgently required, which is possible only if (a) the factors responsible for the failure of Akt inhibitors in clinical trials is known; and (b) the information pertaining to synergistically acting targeted therapeutics is available. Areas covered: This review provides a brief introduction of the PI3K-Akt signaling pathway and its role in melanoma development. In addition, the functional role of key Akt pathway members such as PRAS40, GSK3 kinases, WEE1 kinase in melanoma development are discussed together with strategies to modulate these targets. Efficacy and safety of Akt inhibitors is also discussed. Finally, the mechanism(s) through which Akt leads to drug resistance is discussed in this expert opinion review. Expert opinion: Even though Akt play key roles in melanoma tumor progression, cell survival and drug resistance, many gaps still exist that require further understanding of Akt functions, especially in the (a) metastatic spread; (b) circulating melanoma cells survival; and
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Affiliation(s)
- SubbaRao V Madhunapantula
- a Center of Excellence in Molecular Biology and Regenerative Medicine (CEMR), Department of Biochemistry , JSS Medical College, Jagadguru Sri Shivarathreeshwara University (Accredited 'A' Grade by NAAC and Ranked 35 by National Institutional Ranking Framework (NIRF)-2015, Ministry of Human Resource Development, Government of India) , Mysuru , India
| | - Gavin P Robertson
- b Department of Pharmacology , The Pennsylvania State University College of Medicine , Hershey , PA , USA.,c Department of Pathology , The Pennsylvania State University College of Medicine , Hershey , PA , USA.,d Department of Dermatology , The Pennsylvania State University College of Medicine , Hershey , PA , USA.,e Department of Surgery , The Pennsylvania State University College of Medicine , Hershey , PA , USA.,f The Melanoma Center , The Pennsylvania State University College of Medicine , Hershey , PA , USA.,g The Melanoma Therapeutics Program , The Pennsylvania State University College of Medicine , Hershey , PA , USA
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47
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Cisternas P, Salazar P, Silva-Álvarez C, Barros LF, Inestrosa NC. Activation of Wnt Signaling in Cortical Neurons Enhances Glucose Utilization through Glycolysis. J Biol Chem 2016; 291:25950-25964. [PMID: 27703002 DOI: 10.1074/jbc.m116.735373] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Revised: 09/29/2016] [Indexed: 12/29/2022] Open
Abstract
The Wnt signaling pathway is critical for a number of functions in the central nervous system, including regulation of the synaptic cleft structure and neuroprotection against injury. Deregulation of Wnt signaling has been associated with several brain pathologies, including Alzheimer's disease. In recent years, it has been suggested that the Wnt pathway might act as a central integrator of metabolic signals from peripheral organs to the brain, which would represent a new role for Wnt signaling in cell metabolism. Energy metabolism is critical for normal neuronal function, which mainly depends on glucose utilization. Brain energy metabolism is important in almost all neurological disorders, to which a decrease in the capacity of the brain to utilize glucose has been linked. However, little is known about the relationship between Wnt signaling and neuronal glucose metabolism in the cellular context. In the present study, we found that acute treatment with the Wnt3a ligand induced a large increase in glucose uptake, without changes in the expression or localization of glucose transporter type 3. In addition, we observed that Wnt3a treatment increased the activation of the metabolic sensor Akt. Moreover, we observed an increase in the activity of hexokinase and in the glycolytic rate, and both processes were dependent on activation of the Akt pathway. Furthermore, we did not observe changes in the activity of glucose-6-phosphate dehydrogenase or in the pentose phosphate pathway. The effect of Wnt3a was independent of both the transcription of Wnt target genes and synaptic effects of Wnt3a. Together, our results suggest that Wnt signaling stimulates glucose utilization in cortical neurons through glycolysis to satisfy the high energy demand of these cells.
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Affiliation(s)
- Pedro Cisternas
- From the Centro de Envejecimiento y Regeneración (CARE-UC), Departamento de Biología Celular y Molecular, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago 8330025, Chile.,the Universidad de Atacama, Facultad de Ciencias Naturales, Departamento de Química y Biología, Copayapu 485, Copiapó, Chile
| | - Paulina Salazar
- From the Centro de Envejecimiento y Regeneración (CARE-UC), Departamento de Biología Celular y Molecular, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago 8330025, Chile
| | - Carmen Silva-Álvarez
- From the Centro de Envejecimiento y Regeneración (CARE-UC), Departamento de Biología Celular y Molecular, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago 8330025, Chile
| | - L Felipe Barros
- the Centro de Estudios Científicos (CECs), Casilla 1469, Valdivia, Chile
| | - Nibaldo C Inestrosa
- From the Centro de Envejecimiento y Regeneración (CARE-UC), Departamento de Biología Celular y Molecular, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago 8330025, Chile, .,the Centre for Healthy Brain Ageing, School of Psychiatry, Faculty of Medicine, University of New South Wales, Sydney 1235, Australia, and.,the Centro de Excelencia en Biomedicina de Magallanes (CEBIMA), Universidad de Magallanes, Punta Arenas 6200732, Chile
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48
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Choudhary KS, Rohatgi N, Halldorsson S, Briem E, Gudjonsson T, Gudmundsson S, Rolfsson O. EGFR Signal-Network Reconstruction Demonstrates Metabolic Crosstalk in EMT. PLoS Comput Biol 2016; 12:e1004924. [PMID: 27253373 PMCID: PMC4890760 DOI: 10.1371/journal.pcbi.1004924] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2016] [Accepted: 04/17/2016] [Indexed: 01/05/2023] Open
Abstract
Epithelial to mesenchymal transition (EMT) is an important event during development and cancer metastasis. There is limited understanding of the metabolic alterations that give rise to and take place during EMT. Dysregulation of signalling pathways that impact metabolism, including epidermal growth factor receptor (EGFR), are however a hallmark of EMT and metastasis. In this study, we report the investigation into EGFR signalling and metabolic crosstalk of EMT through constraint-based modelling and analysis of the breast epithelial EMT cell model D492 and its mesenchymal counterpart D492M. We built an EGFR signalling network for EMT based on stoichiometric coefficients and constrained the network with gene expression data to build epithelial (EGFR_E) and mesenchymal (EGFR_M) networks. Metabolic alterations arising from differential expression of EGFR genes was derived from a literature review of AKT regulated metabolic genes. Signaling flux differences between EGFR_E and EGFR_M models subsequently allowed metabolism in D492 and D492M cells to be assessed. Higher flux within AKT pathway in the D492 cells compared to D492M suggested higher glycolytic activity in D492 that we confirmed experimentally through measurements of glucose uptake and lactate secretion rates. The signaling genes from the AKT, RAS/MAPK and CaM pathways were predicted to revert D492M to D492 phenotype. Follow-up analysis of EGFR signaling metabolic crosstalk in three additional breast epithelial cell lines highlighted variability in in vitro cell models of EMT. This study shows that the metabolic phenotype may be predicted by in silico analyses of gene expression data of EGFR signaling genes, but this phenomenon is cell-specific and does not follow a simple trend.
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Affiliation(s)
- Kumari Sonal Choudhary
- Center for Systems Biology, University of Iceland, Reykjavik, Iceland
- Biomedical Center, University of Iceland, Reykjavik, Iceland
| | - Neha Rohatgi
- Center for Systems Biology, University of Iceland, Reykjavik, Iceland
- Biomedical Center, University of Iceland, Reykjavik, Iceland
| | - Skarphedinn Halldorsson
- Center for Systems Biology, University of Iceland, Reykjavik, Iceland
- Biomedical Center, University of Iceland, Reykjavik, Iceland
| | - Eirikur Briem
- Biomedical Center, University of Iceland, Reykjavik, Iceland
- Stem Cell Research Unit, Department of Anatomy, School of Health Sciences, University of Iceland, Reykjavík, Iceland
- Department of Laboratory Hematology, Landspitali-University Hospital, Reykjavik, Iceland
| | - Thorarinn Gudjonsson
- Biomedical Center, University of Iceland, Reykjavik, Iceland
- Stem Cell Research Unit, Department of Anatomy, School of Health Sciences, University of Iceland, Reykjavík, Iceland
- Department of Laboratory Hematology, Landspitali-University Hospital, Reykjavik, Iceland
| | | | - Ottar Rolfsson
- Center for Systems Biology, University of Iceland, Reykjavik, Iceland
- Biomedical Center, University of Iceland, Reykjavik, Iceland
- * E-mail:
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López-Soldado I, Niisuke K, Veiga C, Adrover A, Manzano A, Martínez-Redondo V, Camps M, Bartrons R, Zorzano A, Gumà A. Neuregulin improves response to glucose tolerance test in control and diabetic rats. Am J Physiol Endocrinol Metab 2016; 310:E440-51. [PMID: 26714846 DOI: 10.1152/ajpendo.00226.2015] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2015] [Accepted: 12/20/2015] [Indexed: 12/31/2022]
Abstract
Neuregulin (NRG) is an EGF-related growth factor that binds to the tyrosine kinase receptors ErbB3 and ErbB4, thus inducing tissue development and muscle glucose utilization during contraction. Here, we analyzed whether NRG has systemic effects regulating glycemia in control and type 2 diabetic rats. To this end, recombinant NRG (rNRG) was injected into Zucker diabetic fatty (ZDF) rats and their respective lean littermates 15 min before a glucose tolerance test (GTT) was performed. rNRG enhanced glucose tolerance without promoting the activation of the insulin receptor (IR) or insulin receptor substrates (IRS) in muscle and liver. However, in control rats, rNRG induced the phosphorylation of protein kinase B (PKB) and glycogen synthase kinase-3 (GSK-3) in liver but not in muscle. In liver, rNRG increased ErbB3 tyrosine phosphorylation and its binding to phosphatidylinositol 3-kinase (PI3K), thus indicating that rNRG activates the ErbB3/PI3K/PKB signaling pathway. rNRG increased glycogen content in liver but not in muscle. rNRG also increased the content of fructose-2,6-bisphosphate (Fru-2,6-P2), an activator of hepatic glycolysis, and lactate in liver but not in muscle. Increases in lactate were abrogated by wortmannin, a PI3K inhibitor, in incubated hepatocytes. The liver of ZDF rats showed a reduced content of ErbB3 receptors, entailing a minor stimulation of the rNRG-induced PKB/GSK-3 cascade and resulting in unaltered hepatic glycogen content. Nonetheless, rNRG increased hepatic Fru-2,6-P2 and augmented lactate both in liver and in plasma of diabetic rats. As a whole, rNRG improved response to the GTT in both control and diabetic rats by enhancing hepatic glucose utilization.
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Affiliation(s)
- Iliana López-Soldado
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Barcelona, Barcelona, Spain; Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology, Barcelona, Spain; Center for Biomedical Investigation in Net of Diabetes and Associated Metabolic Pathologies, Madrid, Spain
| | - Katrin Niisuke
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Barcelona, Barcelona, Spain
| | - Catarina Veiga
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Barcelona, Barcelona, Spain
| | - Anna Adrover
- Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology, Barcelona, Spain
| | - Anna Manzano
- Department of Physiological Sciences II, Faculty of Medicine, University of Barcelona-IDIBELL: Bellvitge Institute for Biomedical Research, Barcelona, Spain; and
| | - Vicente Martínez-Redondo
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Barcelona, Barcelona, Spain
| | - Marta Camps
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Barcelona, Barcelona, Spain; Center for Biomedical Investigation in Net of Diabetes and Associated Metabolic Pathologies, Madrid, Spain; Institute of Biomedicine from the University of Barcelona, Barcelona, Spain
| | - Ramon Bartrons
- Department of Physiological Sciences II, Faculty of Medicine, University of Barcelona-IDIBELL: Bellvitge Institute for Biomedical Research, Barcelona, Spain; and
| | - Antonio Zorzano
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Barcelona, Barcelona, Spain; Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology, Barcelona, Spain; Center for Biomedical Investigation in Net of Diabetes and Associated Metabolic Pathologies, Madrid, Spain
| | - Anna Gumà
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Barcelona, Barcelona, Spain; Center for Biomedical Investigation in Net of Diabetes and Associated Metabolic Pathologies, Madrid, Spain; Institute of Biomedicine from the University of Barcelona, Barcelona, Spain
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Covarrubias AJ, Aksoylar HI, Yu J, Snyder NW, Worth AJ, Iyer SS, Wang J, Ben-Sahra I, Byles V, Polynne-Stapornkul T, Espinosa EC, Lamming D, Manning BD, Zhang Y, Blair IA, Horng T. Akt-mTORC1 signaling regulates Acly to integrate metabolic input to control of macrophage activation. eLife 2016; 5. [PMID: 26894960 PMCID: PMC4769166 DOI: 10.7554/elife.11612] [Citation(s) in RCA: 303] [Impact Index Per Article: 37.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Accepted: 01/05/2016] [Indexed: 12/18/2022] Open
Abstract
Macrophage activation/polarization to distinct functional states is critically supported by metabolic shifts. How polarizing signals coordinate metabolic and functional reprogramming, and the potential implications for control of macrophage activation, remains poorly understood. Here we show that IL-4 signaling co-opts the Akt-mTORC1 pathway to regulate Acly, a key enzyme in Ac-CoA synthesis, leading to increased histone acetylation and M2 gene induction. Only a subset of M2 genes is controlled in this way, including those regulating cellular proliferation and chemokine production. Moreover, metabolic signals impinge on the Akt-mTORC1 axis for such control of M2 activation. We propose that Akt-mTORC1 signaling calibrates metabolic state to energetically demanding aspects of M2 activation, which may define a new role for metabolism in supporting macrophage activation.
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Affiliation(s)
- Anthony J Covarrubias
- Department of Genetics and Complex Diseases, Harvard T.H. Chan School of Public Health, Boston, United States
| | - Halil Ibrahim Aksoylar
- Department of Genetics and Complex Diseases, Harvard T.H. Chan School of Public Health, Boston, United States
| | - Jiujiu Yu
- Department of Genetics and Complex Diseases, Harvard T.H. Chan School of Public Health, Boston, United States
| | - Nathaniel W Snyder
- Center of Excellence in Environmental Toxicology, University of Pennsylvania, Philadelphia, United States.,A.J. Drexel Autism Institute, Drexel University, Philadelphia, United States
| | - Andrew J Worth
- Center of Excellence in Environmental Toxicology, University of Pennsylvania, Philadelphia, United States
| | - Shankar S Iyer
- Department of Medicine, Brigham and Women's Hospital, Boston, United States
| | - Jiawei Wang
- Institute for Plant Physiology and Ecology, Shanghai Institute for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Issam Ben-Sahra
- Department of Genetics and Complex Diseases, Harvard T.H. Chan School of Public Health, Boston, United States
| | - Vanessa Byles
- Department of Genetics and Complex Diseases, Harvard T.H. Chan School of Public Health, Boston, United States
| | - Tiffany Polynne-Stapornkul
- Department of Genetics and Complex Diseases, Harvard T.H. Chan School of Public Health, Boston, United States
| | - Erika C Espinosa
- Department of Genetics and Complex Diseases, Harvard T.H. Chan School of Public Health, Boston, United States
| | - Dudley Lamming
- Department of Medicine, University of Wisconsin-Madison, Madison, United States
| | - Brendan D Manning
- Department of Genetics and Complex Diseases, Harvard T.H. Chan School of Public Health, Boston, United States
| | - Yijing Zhang
- Institute for Plant Physiology and Ecology, Shanghai Institute for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Ian A Blair
- Center of Excellence in Environmental Toxicology, University of Pennsylvania, Philadelphia, United States
| | - Tiffany Horng
- Department of Genetics and Complex Diseases, Harvard T.H. Chan School of Public Health, Boston, United States
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