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Renton MC, McGee SL, Howlett KF. The role of protein kinase D (PKD) in obesity: Lessons from the heart and other tissues. BIOCHIMICA ET BIOPHYSICA ACTA. MOLECULAR CELL RESEARCH 2024; 1871:119814. [PMID: 39128598 DOI: 10.1016/j.bbamcr.2024.119814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 04/15/2024] [Accepted: 08/05/2024] [Indexed: 08/13/2024]
Abstract
Obesity causes a range of tissue dysfunctions that increases the risk for morbidity and mortality. Protein kinase D (PKD) represents a family of stress-activated intracellular signalling proteins that regulate essential processes such as cell proliferation and differentiation, cell survival, and exocytosis. Evidence suggests that PKD regulates the cellular adaptations to the obese environment in metabolically important tissues and drives the development of a variety of diseases. This review explores the role that PKD plays in tissue dysfunction in obesity, with special consideration of the development of obesity-mediated cardiomyopathy, a distinct cardiovascular disease that occurs in the absence of common comorbidities and leads to eventual heart failure and death. The downstream mechanisms mediated by PKD that could contribute to dysfunctions observed in the heart and other metabolically important tissues in obesity, and the predicted cell types involved are discussed to suggest potential targets for the development of therapeutics against obesity-related disease.
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Affiliation(s)
- Mark C Renton
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Science, Deakin University, Geelong, Australia; The Fralin Biomedical Research Institute at Virginia Tech Carilion, Centre for Vascular and Heart Research, Roanoke, VA, USA.
| | - Sean L McGee
- Institute for Mental and Physical Health and Clinical Translation, Metabolic Research Unit, School of Medicine, Deakin University, Geelong, Australia.
| | - Kirsten F Howlett
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Science, Deakin University, Geelong, Australia.
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2
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Wit M, Belykh A, Sumara G. Protein kinase D (PKD) on the crossroad of lipid absorption, synthesis and utilization. BIOCHIMICA ET BIOPHYSICA ACTA. MOLECULAR CELL RESEARCH 2024; 1871:119653. [PMID: 38104800 DOI: 10.1016/j.bbamcr.2023.119653] [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: 03/26/2023] [Revised: 10/19/2023] [Accepted: 11/30/2023] [Indexed: 12/19/2023]
Abstract
Inappropriate lipid levels in the blood, as well as its content and composition in different organs, underlie multiple metabolic disorders including obesity, non-alcoholic fatty liver disease, type 2 diabetes, and atherosclerosis. Multiple processes contribute to the complex metabolism of triglycerides (TGs), fatty acids (FAs), and other lipid species. These consist of digestion and absorption of dietary lipids, de novo FAs synthesis (lipogenesis), uptake of TGs and FAs by peripheral tissues, TGs storage in the intracellular depots as well as lipid utilization for β-oxidation and their conversion to lipid-derivatives. A majority of the enzymatic reactions linked to lipogenesis, TGs synthesis, lipid absorption, and transport are happening at the endoplasmic reticulum, while β-oxidation takes place in mitochondria and peroxisomes. The Golgi apparatus is a central sorting, protein- and lipid-modifying organelle and hence is involved in lipid metabolism as well. However, the impact of the processes taking part in the Golgi apparatus are often overseen. The protein kinase D (PKD) family (composed of three members, PKD1, 2, and 3) is the master regulator of Golgi dynamics. PKDs are also a sensor of different lipid species in distinct cellular compartments. In this review, we discuss the roles of PKD family members in the regulation of lipid metabolism including the processes executed by PKDs at the Golgi apparatus. We also discuss the role of PKDs-dependent signaling in different cellular compartments and organs in the context of the development of metabolic disorders.
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Affiliation(s)
- Magdalena Wit
- Nencki Institute of Experimental Biology, Polish Academy of Sciences, 3 Pasteur Street, 02-093 Warszawa, Poland
| | - Andrei Belykh
- Nencki Institute of Experimental Biology, Polish Academy of Sciences, 3 Pasteur Street, 02-093 Warszawa, Poland
| | - Grzegorz Sumara
- Nencki Institute of Experimental Biology, Polish Academy of Sciences, 3 Pasteur Street, 02-093 Warszawa, Poland.
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3
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Fleming Martinez AK, Storz P. Protein kinase D1 - A targetable mediator of pancreatic cancer development. BIOCHIMICA ET BIOPHYSICA ACTA. MOLECULAR CELL RESEARCH 2024; 1871:119646. [PMID: 38061566 PMCID: PMC10872883 DOI: 10.1016/j.bbamcr.2023.119646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 10/17/2023] [Accepted: 11/30/2023] [Indexed: 01/14/2024]
Abstract
Members of the Protein kinase D (PKD) kinase family each play important cell-specific roles in the regulation of normal pancreas functions. In pancreatic diseases PKD1 is the most widely characterized isoform with roles in pancreatitis and in induction of pancreatic cancer and its progression. PKD1 expression and activation increases in pancreatic acinar cells through macrophage secreted factors, Kirsten rat sarcoma viral oncogene homolog (KRAS) signaling, and reactive oxygen species (ROS), driving the formation of precancerous lesions. In precancerous lesions PKD1 regulates cell survival, growth, senescence, and generation of doublecortin like kinase 1 (DCLK1)-positive cancer stem cells (CSCs). Within tumors, regulation by PKD1 includes chemoresistance, apoptosis, proliferation, CSC features, and the Warburg effect. Thus, PKD1 plays a critical role throughout pancreatic disease initiation and progression.
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Affiliation(s)
| | - Peter Storz
- Department of Cancer Biology, Mayo Clinic, Jacksonville, FL, USA.
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4
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Boss AL, Chamley LW, Brooks AES, James JL. Human placental vascular and perivascular cell heterogeneity differs between first trimester and term, and in pregnancies affected by foetal growth restriction. Mol Hum Reprod 2023; 29:gaad041. [PMID: 38059603 PMCID: PMC10746841 DOI: 10.1093/molehr/gaad041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 11/12/2023] [Indexed: 12/08/2023] Open
Abstract
Growth-restricted placentae have a reduced vascular network, impairing exchange of nutrients and oxygen. However, little is known about the differentiation events and cell types that underpin normal/abnormal placental vascular formation and function. Here, we used 23-colour flow cytometry to characterize placental vascular/perivascular populations between first trimester and term, and in foetal growth restriction (FGR). First-trimester endothelial cells had an immature phenotype (CD144+/lowCD36-CD146low), while term endothelial cells expressed mature endothelial markers (CD36+CD146+). At term, a distinct population of CD31low endothelial cells co-expressed mesenchymal markers (CD90, CD26), indicating a capacity for endothelial to mesenchymal transition (EndMT). In FGR, compared with normal pregnancies, endothelial cells constituted 3-fold fewer villous core cells (P < 0.05), contributing to an increased perivascular: endothelial cell ratio (2.6-fold, P < 0.05). This suggests that abnormal EndMT may play a role in FGR. First-trimester endothelial cells underwent EndMT in culture, losing endothelial (CD31, CD34, CD144) and gaining mesenchymal (CD90, CD26) marker expression. Together this highlights how differences in villous core cell heterogeneity and phenotype may contribute to FGR pathophysiology across gestation.
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Affiliation(s)
- Anna L Boss
- Department of Obstetrics and Gynecology, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - Lawrence W Chamley
- Department of Obstetrics and Gynecology, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - Anna E S Brooks
- School of Biological Sciences, University of Auckland, Auckland, New Zealand
| | - Joanna L James
- Department of Obstetrics and Gynecology, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
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5
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Peche VS, Pietka TA, Jacome-Sosa M, Samovski D, Palacios H, Chatterjee-Basu G, Dudley AC, Beatty W, Meyer GA, Goldberg IJ, Abumrad NA. Endothelial cell CD36 regulates membrane ceramide formation, exosome fatty acid transfer and circulating fatty acid levels. Nat Commun 2023; 14:4029. [PMID: 37419919 PMCID: PMC10329018 DOI: 10.1038/s41467-023-39752-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Accepted: 06/28/2023] [Indexed: 07/09/2023] Open
Abstract
Endothelial cell (EC) CD36 controls tissue fatty acid (FA) uptake. Here we examine how ECs transfer FAs. FA interaction with apical membrane CD36 induces Src phosphorylation of caveolin-1 tyrosine-14 (Cav-1Y14) and ceramide generation in caveolae. Ensuing fission of caveolae yields vesicles containing FAs, CD36 and ceramide that are secreted basolaterally as small (80-100 nm) exosome-like extracellular vesicles (sEVs). We visualize in transwells EC transfer of FAs in sEVs to underlying myotubes. In mice with EC-expression of the exosome marker emeraldGFP-CD63, muscle fibers accumulate circulating FAs in emGFP-labeled puncta. The FA-sEV pathway is mapped through its suppression by CD36 depletion, blocking actin-remodeling, Src inhibition, Cav-1Y14 mutation, and neutral sphingomyelinase 2 inhibition. Suppression of sEV formation in mice reduces muscle FA uptake, raises circulating FAs, which remain in blood vessels, and lowers glucose, mimicking prominent Cd36-/- mice phenotypes. The findings show that FA uptake influences membrane ceramide, endocytosis, and EC communication with parenchymal cells.
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Affiliation(s)
- V S Peche
- Department of Medicine, Division of Nutritional Sciences, Washington University School of Medicine, St. Louis, MO, 63110, USA.
| | - T A Pietka
- Department of Medicine, Division of Nutritional Sciences, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - M Jacome-Sosa
- Department of Medicine, Division of Nutritional Sciences, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - D Samovski
- Department of Medicine, Division of Nutritional Sciences, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - H Palacios
- Department of Medicine, Division of Nutritional Sciences, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - G Chatterjee-Basu
- Department of Medicine, Division of Nutritional Sciences, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - A C Dudley
- Department of Microbiology, Immunology, and Cancer Biology, University of Virginia, Charlottesville, VA, 22908, USA
| | - W Beatty
- Department of Microbiology, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - G A Meyer
- Departments of Physical Therapy, Neurology and Orthopedic Surgery, Washington University School of Medicine, St. Louis, 63110, USA
| | - I J Goldberg
- Department of Medicine, Division of Endocrinology, Diabetes and Metabolism, New York University Grossman School of Medicine, New York, NY, 10016, USA
| | - N A Abumrad
- Department of Medicine, Division of Nutritional Sciences, Washington University School of Medicine, St. Louis, MO, 63110, USA.
- Department of Cell Biology and Physiology, Washington University School of Medicine, St. Louis, MO, 63110, USA.
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Guo Y, Jiang Y, Rose JB, Nagaraju GP, Jaskula-Sztul R, Hjelmeland AB, Beck AW, Chen H, Ren B. Protein Kinase D1 Signaling in Cancer Stem Cells with Epithelial-Mesenchymal Plasticity. Cells 2022; 11:3885. [PMID: 36497140 PMCID: PMC9739736 DOI: 10.3390/cells11233885] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 11/10/2022] [Accepted: 11/20/2022] [Indexed: 12/05/2022] Open
Abstract
Pancreatic neuroendocrine tumors (pNETs) are extremely diverse and highly vascularized neoplasms that arise from endocrine cells in the pancreas. The pNETs harbor a subpopulation of stem cell-like malignant cells, known as cancer stem cells (CSCs), which contribute to intratumoral heterogeneity and promote tumor maintenance and recurrence. In this study, we demonstrate that CSCs in human pNETs co-express protein kinase PKD1 and CD44. We further identify PKD1 signaling as a critical pathway in the control of CSC maintenance in pNET cells. PKD1 signaling regulates the expression of a CSC- and EMT-related gene signature and promotes CSC self-renewal, likely leading to the preservation of a subpopulation of CSCs at an intermediate EMT state. This suggests that the PKD1 signaling pathway may be required for the development of a unique CSC phenotype with plasticity and partial EMT. Given that the signaling networks connected with CSC maintenance and EMT are complex, and extend through multiple levels of regulation, this study provides insight into signaling regulation of CSC plasticity and partial EMT in determining the fate of CSCs. Inhibition of the PKD1 pathway may facilitate the elimination of specific CSC subsets, thereby curbing tumor progression and metastasis.
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Affiliation(s)
- Yichen Guo
- Department of Surgery, Heersink School of Medicine, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Yinan Jiang
- Department of Surgery, Heersink School of Medicine, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - J. Bart Rose
- Department of Surgery, Heersink School of Medicine, University of Alabama at Birmingham, Birmingham, AL 35294, USA
- O’Neal Comprehensive Cancer Center, Heersink School of Medicine, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Ganji Purnachandra Nagaraju
- Department of Medicine, Division of Hematology and Oncology, Heersink School of Medicine, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Renata Jaskula-Sztul
- Department of Surgery, Heersink School of Medicine, University of Alabama at Birmingham, Birmingham, AL 35294, USA
- O’Neal Comprehensive Cancer Center, Heersink School of Medicine, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Anita B. Hjelmeland
- O’Neal Comprehensive Cancer Center, Heersink School of Medicine, University of Alabama at Birmingham, Birmingham, AL 35294, USA
- Department of Cell Developmental and Integrative Biology, Heersink School of Medicine, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Adam W. Beck
- Department of Surgery, Heersink School of Medicine, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Herbert Chen
- Department of Surgery, Heersink School of Medicine, University of Alabama at Birmingham, Birmingham, AL 35294, USA
- O’Neal Comprehensive Cancer Center, Heersink School of Medicine, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Bin Ren
- Department of Surgery, Heersink School of Medicine, University of Alabama at Birmingham, Birmingham, AL 35294, USA
- O’Neal Comprehensive Cancer Center, Heersink School of Medicine, University of Alabama at Birmingham, Birmingham, AL 35294, USA
- GBS Biomedical Engineering Program, Graduate School, University of Alabama at Birmingham, Birmingham, AL 35294, USA
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7
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Pei J, Cai L, Wang F, Xu C, Pei S, Guo H, Sun X, Chun J, Cong X, Zhu W, Zheng Z, Chen X. LPA 2 Contributes to Vascular Endothelium Homeostasis and Cardiac Remodeling After Myocardial Infarction. Circ Res 2022; 131:388-403. [PMID: 35920162 DOI: 10.1161/circresaha.122.321036] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
RATIONALE Myocardial infarction (MI) is one of the most dangerous adverse cardiovascular events. Our previous study found that lysophosphatidic acid (LPA) is increased in human peripheral blood after MI, and LPA has a protective effect on the survival and proliferation of various cell types. However, the role of LPA and its receptors in MI is less understood. OBJECTIVES To study the unknown role of LPA and its receptors in heart during MI. METHODS AND RESULTS In this study, we found that mice also had elevated LPA level in peripheral blood, as well as increased cardiac expression of its receptor LPA2 in the early stages after MI. With adult and neonate MI models in global Lpar2 knockout (Lpar2-KO) mice, we found Lpar2 deficiency increased vascular leak leading to disruption of its homeostasis, so as to impaired heart function and increased early mortality. Histological examination revealed larger scar size, increased fibrosis, and reduced vascular density in the heart of Lpar2-KO mice. Furthermore, Lpar2-KO also attenuated blood flow recovery after femoral artery ligation with decreased vascular density in gastrocnemius. Our study revealed that Lpar2 was mainly expressed and altered in cardiac endothelial cells during MI, and use of endothelial-specific Lpar2 knockout mice phenocopied the global knockout mice. Additionally, adenovirus-Lpar2 and pharmacologically activated LPA2 significantly improved heart function, reduced scar size, increased vascular formation, and alleviated early mortality by maintaining vascular homeostasis owing to protecting vessels from leakage. Mechanistic studies demonstrated that LPA-LPA2 signaling could promote endothelial cell proliferation through PI3K-Akt/PLC-Raf1-Erk pathway and enhanced endothelial cell tube formation via PKD1-CD36 signaling. CONCLUSIONS Our results indicate that endothelial LPA-LPA2 signaling promotes angiogenesis and maintains vascular homeostasis, which is vital for restoring blood flow and repairing tissue function in ischemic injuries. Targeting LPA-LPA2 signal might have clinical therapeutic potential to protect the heart from ischemic injury.
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Affiliation(s)
- Jianqiu Pei
- State Key Laboratory of Cardiovascular Disease (J.P., L.C., C.X., S.P., X.C., Z.Z.), Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,National Health Commission Key Laboratory of Cardiovascular Regenerative Medicine, Fuwai Central-China Hospital, Central-China Branch of National Center for Cardiovascular Diseases, Zhengzhou, China (J.P., Z.Z.)
| | - Lin Cai
- State Key Laboratory of Cardiovascular Disease (J.P., L.C., C.X., S.P., X.C., Z.Z.), Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Science, Hubei University, Wuhan, China (L.C.)
| | - Fang Wang
- State Key Laboratory of Cardiovascular Disease, Center of Laboratory Medicine (F.W., X. Cong, X. Chen), Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Chuansheng Xu
- State Key Laboratory of Cardiovascular Disease (J.P., L.C., C.X., S.P., X.C., Z.Z.), Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Shengqiang Pei
- State Key Laboratory of Cardiovascular Disease (J.P., L.C., C.X., S.P., X.C., Z.Z.), Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Hongwei Guo
- Department of Cardiovascular Surgery (H.G., X.S., Z.Z.), Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xiaogang Sun
- Department of Cardiovascular Surgery (H.G., X.S., Z.Z.), Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jerold Chun
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA (J.C.)
| | - Xiangfeng Cong
- State Key Laboratory of Cardiovascular Disease, Center of Laboratory Medicine (F.W., X. Cong, X. Chen), Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Weiquan Zhu
- Department of Medicine, Program in Molecular Medicine, Department of Internal Medicine, Division of Cardiovascular Medicine, Department of Pathology, University of Utah, Salt Lake City (W.Z.)
| | - Zhe Zheng
- Department of Cardiovascular Surgery (H.G., X.S., Z.Z.), Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,National Health Commission Key Laboratory of Cardiovascular Regenerative Medicine, Fuwai Central-China Hospital, Central-China Branch of National Center for Cardiovascular Diseases, Zhengzhou, China (J.P., Z.Z.)
| | - Xi Chen
- State Key Laboratory of Cardiovascular Disease (J.P., L.C., C.X., S.P., X.C., Z.Z.), Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,State Key Laboratory of Cardiovascular Disease, Center of Laboratory Medicine (F.W., X. Cong, X. Chen), Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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8
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Ren B, Ramchandran R, Yang X. Editorial: Molecular Mechanisms and Signaling in Endothelial Cell Biology and Vascular Heterogeneity. Front Cell Dev Biol 2021; 9:821100. [PMID: 34977049 PMCID: PMC8718799 DOI: 10.3389/fcell.2021.821100] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Accepted: 11/25/2021] [Indexed: 12/14/2022] Open
Affiliation(s)
- Bin Ren
- Department of Surgery, O’Neal Comprehensive Cancer Center, and Comprehensive Cardiovascular Center, Heersink School of Medicine, University of Alabama at Birmingham, Birmingham, AL, United States
- *Correspondence: Bin Ren,
| | - Ramani Ramchandran
- Department of Pediatrics and Children’s Research Institute, Medical College of Wisconsin, Milwaukee, WI, United States
| | - Xiaofeng Yang
- Department of Cardiovascular Sciences, Centers for Cardiovascular Research and Metabolic Disease Research, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, United States
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9
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Hao F, Liu Q, Zhang F, Du J, Dumire A, Xu X, Cui MZ. LPA 1-mediated PKD2 activation promotes LPA-induced tissue factor expression via the p38α and JNK2 MAPK pathways in smooth muscle cells. J Biol Chem 2021; 297:101152. [PMID: 34478715 PMCID: PMC8502912 DOI: 10.1016/j.jbc.2021.101152] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 08/20/2021] [Accepted: 08/30/2021] [Indexed: 11/26/2022] Open
Abstract
Tissue factor (TF) is the principal initiator of blood coagulation and is necessary for thrombosis. We previously reported that lysophosphatidic acid (LPA), a potent bioactive lipid, highly induces TF expression at the transcriptional level in vascular smooth muscle cells. To date, however, the specific role of the LPA receptor is unknown, and the intracellular signaling pathways that lead to LPA induction of TF have been largely undetermined. In the current study, we found that LPA markedly induced protein kinase D (PKD) activation in mouse aortic smooth muscle cells (MASMCs). Small-interfering RNA-mediated knockdown of PKD2 blocked LPA-induced TF expression and activity, indicating that PKD2 is the key intracellular mediator of LPA signaling leading to the expression and cell surface activity of TF. Furthermore, our data reveal a novel finding that PKD2 mediates LPA-induced TF expression via the p38α and JNK2 MAPK signaling pathways, which are accompanied by the PKD-independent MEK1/2-ERK-JNK pathway. To identify the LPA receptor(s) responsible for LPA-induced TF expression, we isolated MASMCs from LPA receptor-knockout mice. Our results demonstrated that SMCs isolated from LPA receptor 1 (LPA1)-deficient mice completely lost responsiveness to LPA stimulation, which mediates induction of TF expression and activation of PKD and p38/JNK MAPK, indicating that LPA1 is responsible for PKD2-mediated activation of JNK2 and p38α. Taken together, our data reveal a new signaling mechanism in which the LPA1-PKD2 axis mediates LPA-induced TF expression via the p38α and JNK2 pathways. This finding provides new insights into LPA signaling, the PKD2 pathway, and the mechanisms of coagulation/atherothrombosis.
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Affiliation(s)
- Feng Hao
- Department of Biology, College of Arts and Sciences, University of Texas Permian Basin, Odessa, Texas, USA
| | - Qiwei Liu
- Department of Biology, College of Arts and Sciences, University of Texas Permian Basin, Odessa, Texas, USA; Department of Cardiology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Fuqiang Zhang
- Science and Research Center, China-Japan Union Hospital, Jilin University, Changchun, China
| | - Jiaxin Du
- Department of Biology, College of Arts and Sciences, University of Texas Permian Basin, Odessa, Texas, USA
| | - Amanda Dumire
- Department of Biology, College of Arts and Sciences, University of Texas Permian Basin, Odessa, Texas, USA
| | - Xuemin Xu
- Department of Biology, College of Arts and Sciences, University of Texas Permian Basin, Odessa, Texas, USA
| | - Mei-Zhen Cui
- Department of Biology, College of Arts and Sciences, University of Texas Permian Basin, Odessa, Texas, USA.
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10
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Jiang Y, Guo Y, Hao J, Guenter R, Lathia J, Beck AW, Hattaway R, Hurst D, Wang QJ, Liu Y, Cao Q, Krontiras H, Chen H, Silverstein R, Ren B. Development of an arteriolar niche and self-renewal of breast cancer stem cells by lysophosphatidic acid/protein kinase D signaling. Commun Biol 2021; 4:780. [PMID: 34168243 PMCID: PMC8225840 DOI: 10.1038/s42003-021-02308-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Accepted: 06/04/2021] [Indexed: 02/05/2023] Open
Abstract
Breast cancer stem cells (BCSCs) are essential for cancer growth, metastasis and recurrence. The regulatory mechanisms of BCSC interactions with the vascular niche within the tumor microenvironment (TME) and their self-renewal are currently under extensive investigation. We have demonstrated the existence of an arteriolar niche in the TME of human BC tissues. Intriguingly, BCSCs tend to be enriched within the arteriolar niche in human estrogen receptor positive (ER+) BC and bi-directionally interact with arteriolar endothelial cells (ECs). Mechanistically, this interaction is driven by the lysophosphatidic acid (LPA)/protein kinase D (PKD-1) signaling pathway, which promotes both arteriolar differentiation of ECs and self-renewal of CSCs likely via differential regulation of CD36 transcription. This study indicates that CSCs may enjoy blood perfusion to maintain their stemness features. Targeting the LPA/PKD-1 -CD36 signaling pathway may have therapeutic potential to curb tumor progression by disrupting the arteriolar niche and effectively eliminating CSCs.
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Affiliation(s)
- Yinan Jiang
- Department of Surgery, University of Alabama at Birmingham School of Medicine, Birmingham, AL, USA
| | - Yichen Guo
- Department of Surgery, University of Alabama at Birmingham School of Medicine, Birmingham, AL, USA
- Biomedical Engineering, University of Alabama at Birmingham School of Medicine, Birmingham, AL, USA
| | - Jinjin Hao
- Department of Surgery, University of Alabama at Birmingham School of Medicine, Birmingham, AL, USA
| | - Rachael Guenter
- Department of Surgery, University of Alabama at Birmingham School of Medicine, Birmingham, AL, USA
| | - Justin Lathia
- Department of Cardiovascular and Metabolic Sciences, Cleveland Clinic, Cleveland, OH, USA
| | - Adam W Beck
- Department of Surgery, University of Alabama at Birmingham School of Medicine, Birmingham, AL, USA
| | - Reagan Hattaway
- Department of Surgery, University of Alabama at Birmingham School of Medicine, Birmingham, AL, USA
| | - Douglas Hurst
- Department of Pathology, University of Alabama at Birmingham School of Medicine, Birmingham, AL, USA
| | - Qiming Jane Wang
- Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Yehe Liu
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, USA
| | - Qi Cao
- Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Helen Krontiras
- Department of Surgery, University of Alabama at Birmingham School of Medicine, Birmingham, AL, USA
| | - Herbert Chen
- Department of Surgery, University of Alabama at Birmingham School of Medicine, Birmingham, AL, USA
- Biomedical Engineering, University of Alabama at Birmingham School of Medicine, Birmingham, AL, USA
- O'Neal Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Roy Silverstein
- Department of Medicine, Medical College of Wisconsin, Milwaukee, Wisconsin, WI, USA
| | - Bin Ren
- Department of Surgery, University of Alabama at Birmingham School of Medicine, Birmingham, AL, USA.
- Biomedical Engineering, University of Alabama at Birmingham School of Medicine, Birmingham, AL, USA.
- O'Neal Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, AL, USA.
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11
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Zhang X, Fan J, Li H, Chen C, Wang Y. CD36 Signaling in Diabetic Cardiomyopathy. Aging Dis 2021; 12:826-840. [PMID: 34094645 PMCID: PMC8139204 DOI: 10.14336/ad.2020.1217] [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: 11/08/2020] [Accepted: 12/17/2020] [Indexed: 12/14/2022] Open
Abstract
Cluster of differentiation 36 (CD36), also referred to as scavenger receptor B2, has been shown to serve multiple functions in lipid metabolism, inflammatory signaling, oxidative stress, and energy reprogramming. As a scavenger receptor, CD36 interacts with various ligands, such as oxidized low-density lipoprotein (oxLDL), thrombospondin 1 (TSP-1), and fatty acid (FA), thereby activating specific downstream signaling pathways. Cardiac CD36 is mostly expressed on the surface of cardiomyocytes and endothelial cells. The pathophysiological process of diabetic cardiomyopathy (DCM) encompasses diverse metabolic abnormalities, such as enhanced transfer of cardiac myocyte sarcolemmal FA, increased levels of advanced glycation end-products, elevation in oxidative stress, impaired insulin signaling cascade, disturbance in calcium handling, and microvascular rarefaction which are closely related to CD36 signaling. This review presents a summary of the CD36 signaling pathway that acts mainly as a long-chain FA transporter in cardiac myocytes and functions as a receptor to bind to numerous ligands in endothelial cells. Finally, we summarize the recent basic research and clinical findings regarding CD36 signaling in DCM, suggesting a promising strategy to treat this condition.
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Affiliation(s)
- Xudong Zhang
- Division of Cardiology, Tongji Hospital, Tongji Medical College and Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiologic Disorders, Huazhong University of Science and Technology, Wuhan, China
| | - Jiahui Fan
- Division of Cardiology, Tongji Hospital, Tongji Medical College and Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiologic Disorders, Huazhong University of Science and Technology, Wuhan, China
| | - Huaping Li
- Division of Cardiology, Tongji Hospital, Tongji Medical College and Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiologic Disorders, Huazhong University of Science and Technology, Wuhan, China
| | - Chen Chen
- Division of Cardiology, Tongji Hospital, Tongji Medical College and Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiologic Disorders, Huazhong University of Science and Technology, Wuhan, China
| | - Yan Wang
- Division of Cardiology, Tongji Hospital, Tongji Medical College and Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiologic Disorders, Huazhong University of Science and Technology, Wuhan, China
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12
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Fang Z, Wang X, Sun X, Hu W, Miao QR. The Role of Histone Protein Acetylation in Regulating Endothelial Function. Front Cell Dev Biol 2021; 9:672447. [PMID: 33996829 PMCID: PMC8113824 DOI: 10.3389/fcell.2021.672447] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Accepted: 04/06/2021] [Indexed: 12/16/2022] Open
Abstract
Endothelial cell (EC), consisting of the innermost cellular layer of all types of vessels, is not only a barrier composer but also performing multiple functions in physiological processes. It actively controls the vascular tone and the extravasation of water, solutes, and macromolecules; modulates circulating immune cells as well as platelet and leukocyte recruitment/adhesion and activation. In addition, EC also tightly keeps coagulation/fibrinolysis balance and plays a major role in angiogenesis. Therefore, endothelial dysfunction contributes to the pathogenesis of many diseases. Growing pieces of evidence suggest that histone protein acetylation, an epigenetic mark, is altered in ECs under different conditions, and the acetylation status change at different lysine sites on histone protein plays a key role in endothelial dysfunction and involved in hyperglycemia, hypertension, inflammatory disease, cancer and so on. In this review, we highlight the importance of histone acetylation in regulating endothelial functions and discuss the roles of histone acetylation across the transcriptional unit of protein-coding genes in ECs under different disease-related pathophysiological processes. Since histone acetylation changes are conserved and reversible, the knowledge of histone acetylation in endothelial function regulation could provide insights to develop epigenetic interventions in preventing or treating endothelial dysfunction-related diseases.
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Affiliation(s)
- Zhi Fang
- Department of Foundations of Medicine, New York University Long Island School of Medicine, Mineola, NY, United States
- Department of Neurology, Tongji Medical College, Union Hospital, Huazhong University of Science and Technology, Wuhan, China
| | - Xiang Wang
- Department of Foundations of Medicine, New York University Long Island School of Medicine, Mineola, NY, United States
| | - Xiaoran Sun
- Department of Foundations of Medicine, New York University Long Island School of Medicine, Mineola, NY, United States
| | - Wenquan Hu
- Department of Foundations of Medicine, New York University Long Island School of Medicine, Mineola, NY, United States
| | - Qing R. Miao
- Department of Foundations of Medicine, New York University Long Island School of Medicine, Mineola, NY, United States
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13
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Akil A, Gutiérrez-García AK, Guenter R, Rose JB, Beck AW, Chen H, Ren B. Notch Signaling in Vascular Endothelial Cells, Angiogenesis, and Tumor Progression: An Update and Prospective. Front Cell Dev Biol 2021; 9:642352. [PMID: 33681228 PMCID: PMC7928398 DOI: 10.3389/fcell.2021.642352] [Citation(s) in RCA: 75] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Accepted: 01/19/2021] [Indexed: 12/12/2022] Open
Abstract
The Notch signaling pathway plays an essential role in a wide variety of biological processes including cell fate determination of vascular endothelial cells and the regulation of arterial differentiation and angiogenesis. The Notch pathway is also an essential regulator of tumor growth and survival by functioning as either an oncogene or a tumor suppressor in a context-dependent manner. Crosstalk between the Notch and other signaling pathways is also pivotal in tumor progression by promoting cancer cell growth, migration, invasion, metastasis, tumor angiogenesis, and the expansion of cancer stem cells (CSCs). In this review, we provide an overview and update of Notch signaling in endothelial cell fate determination and functioning, angiogenesis, and tumor progression, particularly in the development of CSCs and therapeutic resistance. We further summarize recent studies on how endothelial signaling crosstalk with the Notch pathway contributes to tumor angiogenesis and the development of CSCs, thereby providing insights into vascular biology within the tumor microenvironment and tumor progression.
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Affiliation(s)
- Abdellah Akil
- Department of Surgery, School of Medicine, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Ana K. Gutiérrez-García
- Department of Surgery, School of Medicine, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Rachael Guenter
- Department of Surgery, School of Medicine, University of Alabama at Birmingham, Birmingham, AL, United States
| | - J. Bart Rose
- Department of Surgery, School of Medicine, University of Alabama at Birmingham, Birmingham, AL, United States
- O’Neal Comprehensive Cancer Center, School of Medicine, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Adam W. Beck
- Department of Surgery, School of Medicine, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Herbert Chen
- Department of Surgery, School of Medicine, University of Alabama at Birmingham, Birmingham, AL, United States
- O’Neal Comprehensive Cancer Center, School of Medicine, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Bin Ren
- Department of Surgery, School of Medicine, University of Alabama at Birmingham, Birmingham, AL, United States
- O’Neal Comprehensive Cancer Center, School of Medicine, University of Alabama at Birmingham, Birmingham, AL, United States
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14
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Ma Y, Zhang S, Jin Z, Shi M. Lipid-mediated regulation of the cancer-immune crosstalk. Pharmacol Res 2020; 161:105131. [PMID: 32810628 DOI: 10.1016/j.phrs.2020.105131] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 07/24/2020] [Accepted: 08/07/2020] [Indexed: 12/20/2022]
Abstract
Besides acting as principle cellular building blocks and energy reservoirs, lipids also carry important signals associated with many fundamental cell biological processes, such as proliferation, differentiation, migration, stress responses and cell demise. Hyperactive lipid metabolism is closely associated with cancer progression and unfavorable outcomes. The underlying mechanisms are being gradually deciphered. In this review, we aim to summarize recent advances on how reprogrammed lipid metabolism and accompanying signaling cascades directly modulate cancer cells, as well as influencing stromal cells and immune cells within the tumor microenvironment. For future studies, special attention should be paid to lipid-mediated crosstalk among cancer cells, their neighboring stromal cells, and immune cells, plus how these multi-level communications determine anti-tumor immunity and bring novel immunotherapeutic opportunities.
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Affiliation(s)
- Yuting Ma
- Center for Systems Medicine, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China; Suzhou Institute of Systems Medicine, Suzhou, Jiangsu, China.
| | - Shuqing Zhang
- Center for Systems Medicine, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China; Suzhou Institute of Systems Medicine, Suzhou, Jiangsu, China
| | - Ziqi Jin
- Center for Systems Medicine, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China; Suzhou Institute of Systems Medicine, Suzhou, Jiangsu, China
| | - Minxin Shi
- The Affiliated Tumor Hospital of Nantong University, Nantong Tumor Hospital, Nantong, Jiangsu, China
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15
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Roles for lysophosphatidic acid signaling in vascular development and disease. Biochim Biophys Acta Mol Cell Biol Lipids 2020; 1865:158734. [PMID: 32376340 DOI: 10.1016/j.bbalip.2020.158734] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 04/27/2020] [Accepted: 04/29/2020] [Indexed: 01/28/2023]
Abstract
The bioactive lipid lysophosphatidic acid (LPA) is emerging as an important mediator of inflammation in cardiovascular diseases. Produced in large part by the secreted lysophospholipase D autotaxin (ATX), LPA acts on a series of G protein-coupled receptors and may have action on atypical receptors such as RAGE to exert potent effects on vascular cells, including the promotion of foam cell formation and phenotypic modulation of smooth muscle cells. The signaling effects of LPA can be terminated by integral membrane lipid phosphate phosphatases (LPP) that hydrolyze the lipid to receptor inactive products. Human genetic variants in PLPP3, that predict lower levels of LPP3, associate with risk for premature coronary artery disease, and reductions of LPP3 expression in mice promote the development of experimental atherosclerosis and enhance inflammation in the atherosclerotic lesions. Recent evidence also supports a role for ATX, and potentially LPP3, in calcific aortic stenosis. In summary, LPA may be a relevant inflammatory mediator in atherosclerotic cardiovascular disease and heightened LPA signaling may explain the cardiovascular disease risk effect of PLPP3 variants.
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16
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Ren B, Rose JB, Liu Y, Jaskular-Sztul R, Contreras C, Beck A, Chen H. Heterogeneity of Vascular Endothelial Cells, De Novo Arteriogenesis and Therapeutic Implications in Pancreatic Neuroendocrine Tumors. J Clin Med 2019; 8:jcm8111980. [PMID: 31739580 PMCID: PMC6912347 DOI: 10.3390/jcm8111980] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 11/08/2019] [Accepted: 11/12/2019] [Indexed: 02/07/2023] Open
Abstract
Arteriogenesis supplies oxygen and nutrients in the tumor microenvironment (TME), which may play an important role in tumor growth and metastasis. Pancreatic neuroendocrine tumors (pNETs) are the second most common pancreatic malignancy and are frequently metastatic on presentation. Nearly a third of pNETs secrete bioactive substances causing debilitating symptoms. Current treatment options for metastatic pNETs are limited. Importantly, these tumors are highly vascularized and heterogeneous neoplasms, in which the heterogeneity of vascular endothelial cells (ECs) and de novo arteriogenesis may be critical for their progression. Current anti-angiogenetic targeted treatments have not shown substantial clinical benefits, and they are poorly tolerated. This review article describes EC heterogeneity and heterogeneous tumor-associated ECs (TAECs) in the TME and emphasizes the concept of de novo arteriogenesis in the TME. The authors also emphasize the challenges of current antiangiogenic therapy in pNETs and discuss the potential of tumor arteriogenesis as a novel therapeutic target. Finally, the authors prospect the clinical potential of targeting the FoxO1-CD36-Notch pathway that is associated with both pNET progression and arteriogenesis and provide insights into the clinical implications of targeting plasticity of cancer stem cells (CSCs) and vascular niche, particularly the arteriolar niche within the TME in pNETs, which will also provide insights into other types of cancer, including breast cancer, lung cancer, and malignant melanoma.
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Affiliation(s)
- Bin Ren
- Department of Surgery, University of Alabama at Birmingham, Birmingham, AL 35294, USA; (J.B.R.); (R.J.-S.); (C.C.); (A.B.); (H.C.)
- O’Neal Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, AL 35294, USA
- Nutrition & Obesity Research Center, University of Alabama at Birmingham, Birmingham, AL 35294, USA
- Diabetes Research Center, University of Alabama at Birmingham, Birmingham, AL 35294, USA
- Department of Biomedical Engineering, University of Alabama at Birmingham, Birmingham, AL 35294, USA
- Graduate Biomedical Science Program of the Graduate School, University of Alabama at Birmingham, Birmingham, AL 35294, USA
- Correspondence:
| | - J. Bart Rose
- Department of Surgery, University of Alabama at Birmingham, Birmingham, AL 35294, USA; (J.B.R.); (R.J.-S.); (C.C.); (A.B.); (H.C.)
- O’Neal Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Yehe Liu
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH 44106, USA;
| | - Renata Jaskular-Sztul
- Department of Surgery, University of Alabama at Birmingham, Birmingham, AL 35294, USA; (J.B.R.); (R.J.-S.); (C.C.); (A.B.); (H.C.)
- O’Neal Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, AL 35294, USA
- Department of Biomedical Engineering, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Carlo Contreras
- Department of Surgery, University of Alabama at Birmingham, Birmingham, AL 35294, USA; (J.B.R.); (R.J.-S.); (C.C.); (A.B.); (H.C.)
- O’Neal Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Adam Beck
- Department of Surgery, University of Alabama at Birmingham, Birmingham, AL 35294, USA; (J.B.R.); (R.J.-S.); (C.C.); (A.B.); (H.C.)
| | - Herbert Chen
- Department of Surgery, University of Alabama at Birmingham, Birmingham, AL 35294, USA; (J.B.R.); (R.J.-S.); (C.C.); (A.B.); (H.C.)
- O’Neal Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, AL 35294, USA
- Department of Biomedical Engineering, University of Alabama at Birmingham, Birmingham, AL 35294, USA
- Graduate Biomedical Science Program of the Graduate School, University of Alabama at Birmingham, Birmingham, AL 35294, USA
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17
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Zhao Y, Hasse S, Zhao C, Bourgoin SG. Targeting the autotaxin - Lysophosphatidic acid receptor axis in cardiovascular diseases. Biochem Pharmacol 2019; 164:74-81. [PMID: 30928673 DOI: 10.1016/j.bcp.2019.03.035] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Accepted: 03/26/2019] [Indexed: 02/06/2023]
Abstract
Lysophosphatidic acid (LPA) is a well-characterized bioactive lipid mediator, which is involved in development, physiology, and pathological processes of the cardiovascular system. LPA can be produced both inside cells and in biological fluids. The majority of extracellularLPAis produced locally by the secreted lysophospholipase D, autotaxin (ATX), through its binding to various β integrins or heparin sulfate on cell surface and hydrolyzing various lysophospholipids. LPA initiates cellular signalling pathways upon binding to and activation of its G protein-coupled receptors (LPA1-6). LPA has potent effects on various blood cells and vascular cells involved in the development of cardiovascular diseases such as atherosclerosis and aortic valve sclerosis. LPA signalling drives cell migration and proliferation, cytokine production, thrombosis, fibrosis, as well as angiogenesis. For instance, LPA promotes activation and aggregation of platelets through LPA5, increases expression of adhesion molecules in endothelial cells, and enhances expression of tissue factor in vascular smooth muscle cells. Furthermore, LPA induces differentiation of monocytes into macrophages and stimulates oxidized low-density lipoproteins (oxLDLs) uptake by macrophages to form foam cells during formation of atherosclerotic lesions through LPA1-3. This review summarizes recent findings of the roles played by ATX, LPA and LPA receptors (LPARs) in atherosclerosis and calcific aortic valve disease. Targeting the ATX-LPAR axis may have potential applications for treatment of patients suffering from various cardiovascular diseases.
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Affiliation(s)
- Yang Zhao
- Centre de Recherche du Centre Hospitalier Universitaire de Québec - Université Laval, Canada; Département de microbiologie, infectiologie et immunologie, Faculté de Médecine, Université Laval, Québec, QC G1V4G2, Canada
| | - Stephan Hasse
- Centre de Recherche du Centre Hospitalier Universitaire de Québec - Université Laval, Canada; Département de microbiologie, infectiologie et immunologie, Faculté de Médecine, Université Laval, Québec, QC G1V4G2, Canada
| | - Chenqi Zhao
- Centre de Recherche du Centre Hospitalier Universitaire de Québec - Université Laval, Canada
| | - Sylvain G Bourgoin
- Centre de Recherche du Centre Hospitalier Universitaire de Québec - Université Laval, Canada; Département de microbiologie, infectiologie et immunologie, Faculté de Médecine, Université Laval, Québec, QC G1V4G2, Canada.
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18
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Lei L, Su J, Chen J, Chen W, Chen X, Peng C. The role of lysophosphatidic acid in the physiology and pathology of the skin. Life Sci 2018; 220:194-200. [PMID: 30584899 DOI: 10.1016/j.lfs.2018.12.040] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Revised: 11/25/2018] [Accepted: 12/21/2018] [Indexed: 12/13/2022]
Abstract
Lysophosphatidic acid (LPA) is the simplest phospholipid found in nature. LPA is mainly biosynthesized in tissues and cells by autotoxin and PA-PLA1α/PA-PLA1β and is degraded by lipid phosphate phosphatases (LPPs). It is an important component of biofilm, an extracellular signal transmitter and intracellular second messenger. After targeting to endothelial differentiation gene (Edg) family LPA receptors (LPA1, LPA2, LPA3) and non-Edg family LPA receptors (LPA4, LPA5, LPA6), LPA mediates physiological and pathological processes such as embryonic development, angiogenesis, tumor progression, fibrogenesis, wound healing, ischemia/reperfusion injury, and inflammatory reactions. These processes are induced through signaling pathways including mitogen-activated protein kinase (MAPK), phosphatidylinositol-3-kinase (PI3K)/Akt, protein kinase C (PKC)-GSK3β-β-catenin, Rho, Stat, and hypoxia-inducible factor 1-alpha (HIF-1α). LPA is involved in multiple physiological and pathological processes in the skin. It not only regulates skin function but also plays an important role in hair follicle development, skin wound healing, pruritus, skin tumors, and scleroderma. Pharmacological inhibition of LPA synthesis or antagonization of LPA receptors is a new strategy for the treatment of various skin disorders. This review focuses on the current understanding of the pathophysiologic role of LPA in the skin.
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Affiliation(s)
- Li Lei
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha 410008, China; Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Central South University, Changsha 410008, China; Hunan Engineering Research Center of Skin Health and Disease, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Juan Su
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha 410008, China; Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Central South University, Changsha 410008, China; Hunan Engineering Research Center of Skin Health and Disease, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Junchen Chen
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha 410008, China; Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Central South University, Changsha 410008, China; Hunan Engineering Research Center of Skin Health and Disease, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Wangqing Chen
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha 410008, China; Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Central South University, Changsha 410008, China; Hunan Engineering Research Center of Skin Health and Disease, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Xiang Chen
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha 410008, China; Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Central South University, Changsha 410008, China; Hunan Engineering Research Center of Skin Health and Disease, Xiangya Hospital, Central South University, Changsha 410008, China.
| | - Cong Peng
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha 410008, China; Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Central South University, Changsha 410008, China; Hunan Engineering Research Center of Skin Health and Disease, Xiangya Hospital, Central South University, Changsha 410008, China.
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19
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Chabowski DS, Kadlec AO, Ait‐Aissa K, Hockenberry JC, Pearson PJ, Beyer AM, Gutterman DD. Lysophosphatidic acid acts on LPA 1 receptor to increase H 2 O 2 during flow-induced dilation in human adipose arterioles. Br J Pharmacol 2018; 175:4266-4280. [PMID: 30153326 PMCID: PMC6193883 DOI: 10.1111/bph.14492] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Revised: 07/23/2018] [Accepted: 08/09/2018] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND AND PURPOSE NO produces arteriolar flow-induced dilation (FID) in healthy subjects but is replaced by mitochondria-derived hydrogen peroxide (mtH2 O2 ) in patients with coronary artery disease (CAD). Lysophosphatidic acid (LPA) is elevated in patients with risk factors for CAD, but its functional effect in arterioles is unknown. We tested whether elevated LPA changes the mediator of FID from NO to mtH2 O2 in human visceral and subcutaneous adipose arterioles. EXPERIMENTAL APPROACH Arterioles were cannulated on glass micropipettes and pressurized to 60 mmHg. We recorded lumen diameter after graded increases in flow in the presence of either NOS inhibition (L-NAME) or H2 O2 scavenging (Peg-Cat) ± LPA (10 μM, 30 min), ±LPA1 /LPA3 receptor antagonist (Ki16425) or LPA2 receptor antagonist (H2L5186303). We analysed LPA receptor RNA and protein levels in human arterioles and human cultured endothelial cells. KEY RESULTS FID was inhibited by L-NAME but not Peg-Cat in untreated vessels. In vessels treated with LPA, FID was of similar magnitude but inhibited by Peg-Cat while L-NAME had no effect. Rotenone attenuated FID in vessels treated with LPA indicating mitochondria as a source of ROS. RNA transcripts from LPA1 and LPA2 but not LPA3 receptors were detected in arterioles. LPA1 but not LPA3 receptor protein was detected by Western blot. Pretreatment of vessels with an LPA1 /LPA3 , but not LPA2 , receptor antagonist prior to LPA preserved NO-mediated dilation. CONCLUSIONS AND IMPLICATIONS These findings suggest an LPA1 receptor-dependent pathway by which LPA increases arteriolar release of mtH2 O2 as a mediator of FMD.
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Affiliation(s)
- Dawid S Chabowski
- Department of Pharmacology and ToxicologyMedical College of WisconsinMilwaukeeWIUSA
| | - Andrew O Kadlec
- Department of PhysiologyMedical College of WisconsinMilwaukeeWIUSA
| | - Karima Ait‐Aissa
- Department of Medicine – Cardiovascular CenterMedical College of WisconsinMilwaukeeWIUSA
| | - Joseph C Hockenberry
- Department of Medicine – Cardiovascular CenterMedical College of WisconsinMilwaukeeWIUSA
| | - Paul J Pearson
- Department of Surgery – Cardiothoracic SurgeryMedical College of WisconsinMilwaukeeWIUSA
| | - Andreas M Beyer
- Department of PhysiologyMedical College of WisconsinMilwaukeeWIUSA
- Department of Medicine – Cardiovascular CenterMedical College of WisconsinMilwaukeeWIUSA
| | - David D Gutterman
- Department of Pharmacology and ToxicologyMedical College of WisconsinMilwaukeeWIUSA
- Department of PhysiologyMedical College of WisconsinMilwaukeeWIUSA
- Department of Medicine – Cardiovascular CenterMedical College of WisconsinMilwaukeeWIUSA
- VA Medical CenterMilwaukeeWIUSA
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20
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Yang J, Xu J, Han X, Wang H, Zhang Y, Dong J, Deng Y, Wang J. Lysophosphatidic Acid Is Associated With Cardiac Dysfunction and Hypertrophy by Suppressing Autophagy via the LPA3/AKT/mTOR Pathway. Front Physiol 2018; 9:1315. [PMID: 30283359 PMCID: PMC6157396 DOI: 10.3389/fphys.2018.01315] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2018] [Accepted: 08/30/2018] [Indexed: 12/16/2022] Open
Abstract
Background: Lysophosphatidic acid (LPA), as a phospholipid signal molecule, participates in the regulation of various biological functions. Our previous study demonstrated that LPA induces cardiomyocyte hypertrophy in vitro; however, the functional role of LPA in the post-infarct heart remains unknown. Growing evidence has demonstrated that autophagy is involved in regulation of cardiac hypertrophy. The aim of the current work was to investigate the effects of LPA on cardiac function and hypertrophy during myocardial infarction (MI) and determine the regulatory role of autophagy in LPA-induced cardiomyocyte hypertrophy. Methods:In vivo experiments were conducted in Sprague-Dawley rats subjected to MI surgery or a sham operation, and rats with MI were assigned to receive an intraperitoneal injection of LPA (1 mg/kg) or vehicle for 5 weeks. The in vitro experiments were conducted in H9C2 cardiomyoblasts. Results: LPA treatment aggravated cardiac dysfunction, increased cardiac hypertrophy, and reduced autophagy after MI in vivo. LPA suppressed autophagy activation, as indicated by a decreased LC3II-to-LC3I ratio, increased p62 expression, and reduced autophagosome formation in vitro. Rapamycin, an autophagy enhancer, attenuated LPA-induced autophagy inhibition and H9C2 cardiomyoblast hypertrophy, while autophagy inhibition with Beclin1 siRNA did not further enhance the hypertrophic response in LPA-treated cardiomyocytes. Moreover, we demonstrated that LPA suppressed autophagy through the AKT/mTOR signaling pathway because mTOR and PI3K inhibitors significantly prevented LPA-induced mTOR phosphorylation and autophagy inhibition. In addition, we found that knockdown of LPA3 alleviated LPA-mediated autophagy suppression in H9C2 cardiomyoblasts, suggesting that LPA suppresses autophagy through activation of the LPA3 and AKT/mTOR pathways. Conclusion: These findings suggest that LPA plays an important role in mediating cardiac dysfunction and hypertrophy after a MI, and that LPA suppresses autophagy through activation of the LPA3 and AKT/mTOR pathways to induce cardiomyocyte hypertrophy.
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Affiliation(s)
- Jinjing Yang
- Department of Cardiology, Shanxi Cardiovascular Disease Hospital, Taiyuan, China.,Shanxi Cardiovascular Disease Institute, Taiyuan, China.,Central Laboratory, Shanxi Cardiovascular Disease Hospital, Taiyuan, China
| | - Jiyao Xu
- Department of Cardiology, Shanxi Cardiovascular Disease Hospital, Taiyuan, China.,Shanxi Cardiovascular Disease Institute, Taiyuan, China
| | - Xuebin Han
- Department of Cardiology, Shanxi Cardiovascular Disease Hospital, Taiyuan, China.,Shanxi Cardiovascular Disease Institute, Taiyuan, China
| | - Hao Wang
- The Affiliated Cardiovascular Disease Hospital of Shanxi Medical University, Taiyuan, China
| | - Yuean Zhang
- Department of Cardiology, Shanxi Cardiovascular Disease Hospital, Taiyuan, China.,Shanxi Cardiovascular Disease Institute, Taiyuan, China
| | - Jin Dong
- Department of Cardiology, Shanxi Cardiovascular Disease Hospital, Taiyuan, China.,Shanxi Cardiovascular Disease Institute, Taiyuan, China
| | - Yongzhi Deng
- Shanxi Cardiovascular Disease Institute, Taiyuan, China.,Department of Cardiovascular Surgery, Shanxi Cardiovascular Disease Hospital, Taiyuan, China
| | - Jingping Wang
- Department of Cardiology, Shanxi Cardiovascular Disease Hospital, Taiyuan, China.,Shanxi Cardiovascular Disease Institute, Taiyuan, China
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21
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Simsek Papur O, Sun A, Glatz JFC, Luiken JJFP, Nabben M. Acute and Chronic Effects of Protein Kinase-D Signaling on Cardiac Energy Metabolism. Front Cardiovasc Med 2018; 5:65. [PMID: 29930945 PMCID: PMC5999788 DOI: 10.3389/fcvm.2018.00065] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Accepted: 05/17/2018] [Indexed: 02/05/2023] Open
Abstract
Protein kinase-D (PKD) is increasingly recognized as a key regulatory signaling hub in cardiac glucose uptake and also a major player in the development of hypertrophy. Glucose is one of the predominant energy substrates for the heart to support contraction. However, a cardiac substrate switch toward glucose over-usage is associated with the development of cardiac hypertrophy. Hence, regulation of PKD activity must be strictly coordinated. This review provides mechanistic insights into the acute and chronic regulatory functions of PKD signaling in the healthy and hypertrophied heart. First an overview of the activation pathways of PKD1, the most abundant isoform in the heart, is provided. Then the various regulatory roles of the PKD isoforms in the heart in relation to cardiac glucose and fatty acid metabolism, contraction, morphology, function, and the development of cardiac hypertrophy are described. Finally, these findings are integrated and the possibility of targeting this kinase as a novel strategy to combat cardiac diseases is discussed.
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Affiliation(s)
- Ozlenen Simsek Papur
- Department of Genetics & Cell Biology, Faculty of Health, Medicine and Life Sciences, Maastricht University, Maastricht, Netherlands.,Department of Molecular Medicine, Institute of Health Science, Dokuz Eylul University, Izmir, Turkey
| | - Aomin Sun
- Department of Genetics & Cell Biology, Faculty of Health, Medicine and Life Sciences, Maastricht University, Maastricht, Netherlands
| | - Jan F C Glatz
- Department of Genetics & Cell Biology, Faculty of Health, Medicine and Life Sciences, Maastricht University, Maastricht, Netherlands
| | - Joost J F P Luiken
- Department of Genetics & Cell Biology, Faculty of Health, Medicine and Life Sciences, Maastricht University, Maastricht, Netherlands
| | - Miranda Nabben
- Department of Genetics & Cell Biology, Faculty of Health, Medicine and Life Sciences, Maastricht University, Maastricht, Netherlands
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22
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Ren B. FoxO1 transcriptional activities in VEGF expression and beyond: a key regulator in functional angiogenesis? J Pathol 2018; 245:255-257. [PMID: 29691864 DOI: 10.1002/path.5088] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Accepted: 04/18/2018] [Indexed: 01/23/2023]
Abstract
FoxO1 has emerged as an important regulator of angiogenesis. Recent work published in this Journal shows that FoxO1 regulates VEGF expression in keratinocytes and is required for angiogenesis in wound healing. Since FoxO1 also regulates CD36 transcription, and endothelial cell differentiation and vascular maturation, this transcription factor may be essential for the formation of functional vascular networks via coupling the regulation of CD36 in vascular endothelial cells under physiological and pathological conditions. Although many outstanding questions remain to be answered, the mechanisms by which FoxO1 regulates VEGF in keratinocytes provide insight into the development of functional angiogenesis and further our understanding of vascular biology. Copyright © 2018 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd.
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Affiliation(s)
- Bin Ren
- Division of Hematology and Oncology, Medical College of Wisconsin, Milwaukee, Wisconsin, USA.,Laboratory of Vascular Pathobiology, Blood Research Institute, Blood Center of Wisconsin, Milwaukee, Wisconsin, USA
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23
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VEGF/PKD-1 signaling mediates arteriogenic gene expression and angiogenic responses in reversible human microvascular endothelial cells with extended lifespan. Mol Cell Biochem 2018; 446:199-207. [PMID: 29380239 DOI: 10.1007/s11010-018-3286-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Accepted: 01/18/2018] [Indexed: 12/30/2022]
Abstract
Microvascular ECs (MVECs) are an ideal model in angiogenesis research. The aim of this study was to determine vascular endothelial growth factor (VEGF)/protein kinase D1 (PKD-1) signaling in expression of arteriogenic genes in human MVECs. To achieve this aim, we transduced specific SV40 large T antigen and telomerase into primary human dermal MVECs (HMVEC-D) to establish reversible HMVECs with extended lifespan (HMVECi-D). HMVECi-D was then exposed to VEGF/VEGF-inducer GS4012 or transduced with constitutively active protein kinase PKD-1 (PKD-CA). Quantitative RT-PCR was performed to detect arteriogenic gene expression. Furthermore, the angiogenic capacity in response to VEGF pathway was evaluated by Matrigel tube-formation and proliferation assays. We observed that VEGF/PKD-1 signaling axis significantly stimulated the expression of arteriogenic genes and promoted EC proliferation, along with downregulation of CD36 expression. Intriguingly, overexpression of PKD-CA also resulted in formation of tip cell morphology, accompanied by increased mRNA of delta-like ligand 4 (DLL4). In conclusion, we have successfully established and characterized HMVECi-D, and showed that VEGF/PKD-1 signaling axis increases angiogenic and arteriogenic gene expression. These studies suggest that the axis may regulate arteriolar differentiation through changing MVEC gene expression.
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24
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CD36 in chronic kidney disease: novel insights and therapeutic opportunities. Nat Rev Nephrol 2017; 13:769-781. [DOI: 10.1038/nrneph.2017.126] [Citation(s) in RCA: 91] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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25
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Dong L, Yuan Y, Opansky C, Chen Y, Aguilera-Barrantes I, Wu S, Yuan R, Cao Q, Cheng YC, Sahoo D, Silverstein RL, Ren B. Diet-induced obesity links to ER positive breast cancer progression via LPA/PKD-1-CD36 signaling-mediated microvascular remodeling. Oncotarget 2017; 8:22550-22562. [PMID: 28186980 PMCID: PMC5410244 DOI: 10.18632/oncotarget.15123] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Accepted: 01/24/2017] [Indexed: 01/06/2023] Open
Abstract
Obesity increases cancer risk including breast cancer (BC). However, the direct regulatory mechanisms by which obesity promotes BC progression remain largely unknown. We show that lysophosphatidic acid/protein kinase D1 (LPA/PKD-1)-CD36 signaling is a bona fide breast cancer promoter via stimulating microvascular remodeling in chronic diet-induced obesity (DIO). We observed that the growth of an estrogen receptor (ER) positive breast cancer was markedly increased when compared to the lean control, and specifically accompanied by increased microvascular remodeling in a syngeneic BC model in female DIO mice. The tumor neovessels in DIO mice demonstrated elevated levels of alpha smooth muscle actin (α-SMA), vascular endothelial growth factor receptor 2 (VEGFR 2) and endothelial differentiation gene 2/LPA receptor1 (Edg2/LPA1), enhanced PKD-1 phosphorylation, and reduced CD36 expression. Tumor associated endothelial cells (TAECs) exposed to LPA demonstrated sustained nuclear PKD-1 phosphorylation, and elevated mRNA levels of ephrin B2, and reduced mRNA expression of CD36. TAEC proliferation also increased in response to LPA/PKD-1 signaling. These studies suggest that the LPA/PKD-1-CD36 signaling axis links DIO to malignant progression of BC via stimulation of de novo tumor arteriogenesis through arteriolar remodeling of microvasculature in the tumor microenvironment. Targeting this signaling axis could provide an additional novel therapeutic strategy.
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Affiliation(s)
- Liuyi Dong
- Blood Research Institute, Blood Center of Wisconsin, Milwaukee, Wisconsin, USA
| | - Ye Yuan
- Blood Research Institute, Blood Center of Wisconsin, Milwaukee, Wisconsin, USA
- Edison Biotechnology Institute and Department of Chemistry and Biochemistry, Ohio University, Athens, Ohio, USA
| | - Cynthia Opansky
- Blood Research Institute, Blood Center of Wisconsin, Milwaukee, Wisconsin, USA
| | - Yiliang Chen
- Blood Research Institute, Blood Center of Wisconsin, Milwaukee, Wisconsin, USA
| | | | - Shiyong Wu
- Edison Biotechnology Institute and Department of Chemistry and Biochemistry, Ohio University, Athens, Ohio, USA
| | - Rong Yuan
- Blood Research Institute, Blood Center of Wisconsin, Milwaukee, Wisconsin, USA
| | - Qi Cao
- Diagnostic Radiology and Nuclear Medicine, University of Maryland Medical Center, Baltimore, Maryland, USA
| | - Yee Chung Cheng
- Department of Medicine, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | - Daisy Sahoo
- Department of Medicine, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | - Roy L. Silverstein
- Blood Research Institute, Blood Center of Wisconsin, Milwaukee, Wisconsin, USA
- Department of Medicine, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | - Bin Ren
- Blood Research Institute, Blood Center of Wisconsin, Milwaukee, Wisconsin, USA
- Department of Medicine, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
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26
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Purroy F, Cambray S, Mauri-Capdevila G, Jové M, Sanahuja J, Farré J, Benabdelhak I, Molina-Seguin J, Colàs-Campàs L, Begue R, Gil MI, Pamplona R, Portero-Otín M. Metabolomics Predicts Neuroimaging Characteristics of Transient Ischemic Attack Patients. EBioMedicine 2016; 14:131-138. [PMID: 27843094 PMCID: PMC5161417 DOI: 10.1016/j.ebiom.2016.11.010] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Revised: 11/06/2016] [Accepted: 11/07/2016] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Neuroimaging is essential for the diagnosis and prognosis of transient ischemic attack (TIA). The discovery of a plasmatic biomarker related to neuroimaging findings is of enormous interest because, despite its relevance, magnetic resonance diffusion weighted imaging (DWI) is not always available in all hospitals that attend to TIA patients. METHODS Metabolomic analyses were performed by liquid chromatography coupled to mass spectrometry in order to establish the metabolomic patterns of positive DWI, DWI patterns and acute ischemic lesion volumes. We used these methods with an initial TIA cohort of 129 patients and validated them with a 2nd independent cohort of 152 patients. FINDINGS Positive DWI was observed in 115 (40.9%) subjects and scattered pearls in one arterial territory was the most frequent lesion pattern (35.7%). The median acute ischemic lesion volume was 0.33 (0.15-1.90)cm3. We detected a specific metabolomic profile common to both cohorts for positive DWI (11 molecules including creatinine, threoninyl-threonine, N-acetyl-glucosamine, lyso phosphatidic acid and cholesterol-related molecules) and ischemic lesion volume (10 molecules including lysophosphatidylcholine, hypoxanthine/threonate, and leucines). Moreover lysophospholipids and creatinine clearly differed the subcortical DWI pattern from other patterns. INTERPRETATION There are specific metabolomic profiles associated with representative neuroimaging features in TIA patients. Our findings could allow the development of serum biomarkers related to acute ischemic lesions and specific acute ischemic patterns.
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Affiliation(s)
- Francisco Purroy
- Stroke Unit, Department of Neurology, Universitat de Lleida, Hospital Universitari Arnau de Vilanova de Leida, Clinical Neurosciences Group IRBLleida, Spain.
| | - Serafi Cambray
- Stroke Unit, Department of Neurology, Universitat de Lleida, Hospital Universitari Arnau de Vilanova de Leida, Clinical Neurosciences Group IRBLleida, Spain
| | - Gerard Mauri-Capdevila
- Stroke Unit, Department of Neurology, Universitat de Lleida, Hospital Universitari Arnau de Vilanova de Leida, Clinical Neurosciences Group IRBLleida, Spain
| | - Mariona Jové
- NUTREN-Nutrigenomics Center, Department of Experimental Medicine, Parc Científic i Tecnològic Agroalimentari de Lleida-Universitat de Lleida-IRBLLEIDA, Lleida, Spain
| | - Jordi Sanahuja
- Stroke Unit, Department of Neurology, Universitat de Lleida, Hospital Universitari Arnau de Vilanova de Leida, Clinical Neurosciences Group IRBLleida, Spain
| | - Joan Farré
- Laboratori Clinic, Universitari Arnau de Vilanova de Lleida, Clinical Neurosciences Group IRBLleida, Spain
| | - Ikram Benabdelhak
- Stroke Unit, Department of Neurology, Universitat de Lleida, Hospital Universitari Arnau de Vilanova de Leida, Clinical Neurosciences Group IRBLleida, Spain
| | - Jessica Molina-Seguin
- Stroke Unit, Department of Neurology, Universitat de Lleida, Hospital Universitari Arnau de Vilanova de Leida, Clinical Neurosciences Group IRBLleida, Spain
| | - Laura Colàs-Campàs
- Stroke Unit, Department of Neurology, Universitat de Lleida, Hospital Universitari Arnau de Vilanova de Leida, Clinical Neurosciences Group IRBLleida, Spain
| | - Robert Begue
- Stroke Unit, Department of Neurology, Universitat de Lleida, Hospital Universitari Arnau de Vilanova de Leida, Clinical Neurosciences Group IRBLleida, Spain
| | - M Isabel Gil
- Stroke Unit, Department of Neurology, Universitat de Lleida, Hospital Universitari Arnau de Vilanova de Leida, Clinical Neurosciences Group IRBLleida, Spain
| | - Reinald Pamplona
- NUTREN-Nutrigenomics Center, Department of Experimental Medicine, Parc Científic i Tecnològic Agroalimentari de Lleida-Universitat de Lleida-IRBLLEIDA, Lleida, Spain
| | - Manuel Portero-Otín
- NUTREN-Nutrigenomics Center, Department of Experimental Medicine, Parc Científic i Tecnològic Agroalimentari de Lleida-Universitat de Lleida-IRBLLEIDA, Lleida, Spain
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27
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Tahiri H, Omri S, Yang C, Duhamel F, Samarani S, Ahmad A, Vezina M, Bussières M, Vaucher E, Sapieha P, Hickson G, Hammamji K, Lapointe R, Rodier F, Tremblay S, Royal I, Cailhier JF, Chemtob S, Hardy P. Lymphocytic Microparticles Modulate Angiogenic Properties of Macrophages in Laser-induced Choroidal Neovascularization. Sci Rep 2016; 6:37391. [PMID: 27874077 PMCID: PMC5118818 DOI: 10.1038/srep37391] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Accepted: 10/27/2016] [Indexed: 11/13/2022] Open
Abstract
Pathological choroidal neovascularization (CNV) is the common cause of vision loss in patients with age-related macular degeneration (AMD). Macrophages possess potential angiogenic function in CNV. We have demonstrated that human T lymphocyte-derived microparticles (LMPs) exert a potent antiangiogenic effect in several pathological neovascularization models. In this study, we investigated the alteration of proangiogenic properties of macrophages by LMPs treatment in vitro and in vivo models. LMPs regulated the expression of several angiogenesis-related factors in macrophages and consequently stimulated their antiangiogenic effects evidenced by the suppression of the proliferation of human retinal endothelial cells in co-culture experiments. The involvement of CD36 receptor in LMPs uptake by macrophages was demonstrated by in vitro assays and by immunostaining of choroidal flat mounts. In addition, ex vivo experiments showed that CD36 mediates the antiangiogenic effect of LMPs in murine and human choroidal explants. Furthermore, intravitreal injection of LMPs in the mouse model of laser-induced CNV significantly suppressed CNV in CD36 dependent manner. The results of this study suggested an ability of LMPs to alter the gene expression pattern of angiogenesis-related factors in macrophages, which provide important information for a new therapeutic approach for efficiently interfering with both vascular and extravascular components of CNV.
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Affiliation(s)
- Houda Tahiri
- Department of Pharmacology, Université de Montréal, Montréal, QC, Canada.,Research Center CHU Sainte-Justine, Université de Montréal, Montréal, QC, Canada
| | - Samy Omri
- Research Center Hôpital Maisonneuve-Rosemont, Université de Montréal, Montréal, QC, Canada
| | - Chun Yang
- Research Center CHU Sainte-Justine, Université de Montréal, Montréal, QC, Canada
| | - François Duhamel
- Department of Pharmacology, Université de Montréal, Montréal, QC, Canada
| | - Suzanne Samarani
- Departments of Microbiology and Immunology, Université de Montréal, Montréal, QC, Canada
| | - Ali Ahmad
- Departments of Microbiology and Immunology, Université de Montréal, Montréal, QC, Canada
| | - Mark Vezina
- Charles River Laboratories, Senneville, Montreal, QC, Canada
| | | | - Elvire Vaucher
- School of Optometry, Université de Montréal, Montréal, QC, Canada
| | - Przemyslaw Sapieha
- Research Center Hôpital Maisonneuve-Rosemont, Université de Montréal, Montréal, QC, Canada.,Department of Ophthalmology, Université de Montréal, Montréal, QC, Canada
| | - Gilles Hickson
- Department of Pathology and Cell Biology, Université de Montréal, Montréal, QC, Canada
| | - Karim Hammamji
- Department of Ophthalmology, Université de Montréal, Montréal, QC, Canada
| | - Réjean Lapointe
- Institut du Cancer de Montréal, CRCHUM-Centre de Recherche du Centre Hospitalier de l'Université de Montréal and Department of Medicine, Université de Montréal, Montréal, QC, Canada
| | - Francis Rodier
- Institut du Cancer de Montréal, CRCHUM-Centre de Recherche du Centre Hospitalier de l'Université de Montréal and Department of Medicine, Université de Montréal, Montréal, QC, Canada.,Department of Radiology, Radio-Oncology and Nuclear Medicine, Université de Montréal, Montréal, QC, Canada
| | - Sophie Tremblay
- University of British Columbia, Vancouver, BC, Canada.,Centre for Molecular Medicine and Therapeutics, Vancouver, BC, Canada
| | - Isabelle Royal
- Institut du Cancer de Montréal, CRCHUM-Centre de Recherche du Centre Hospitalier de l'Université de Montréal and Department of Medicine, Université de Montréal, Montréal, QC, Canada
| | - Jean-François Cailhier
- Institut du Cancer de Montréal, CRCHUM-Centre de Recherche du Centre Hospitalier de l'Université de Montréal and Department of Medicine, Université de Montréal, Montréal, QC, Canada
| | - Sylvain Chemtob
- Department of Pharmacology, Université de Montréal, Montréal, QC, Canada.,Research Center CHU Sainte-Justine, Université de Montréal, Montréal, QC, Canada.,Research Center Hôpital Maisonneuve-Rosemont, Université de Montréal, Montréal, QC, Canada.,Department of Ophthalmology, Université de Montréal, Montréal, QC, Canada.,Department of Pediatrics, Université de Montréal, Montréal, QC, Canada
| | - Pierre Hardy
- Department of Pharmacology, Université de Montréal, Montréal, QC, Canada.,Research Center CHU Sainte-Justine, Université de Montréal, Montréal, QC, Canada.,Department of Pediatrics, Université de Montréal, Montréal, QC, Canada
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28
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Ren B. Protein Kinase D1 Signaling in Angiogenic Gene Expression and VEGF-Mediated Angiogenesis. Front Cell Dev Biol 2016; 4:37. [PMID: 27200349 PMCID: PMC4854877 DOI: 10.3389/fcell.2016.00037] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Accepted: 04/18/2016] [Indexed: 12/25/2022] Open
Abstract
Protein kinase D 1 (PKD-1) is a signaling kinase important in fundamental cell functions including migration, proliferation, and differentiation. PKD-1 is also a key regulator of gene expression and angiogenesis that is essential for cardiovascular development and tumor progression. Further understanding molecular aspects of PKD-1 signaling in the regulation of angiogenesis may have translational implications in obesity, cardiovascular disease, and cancer. The author will summarize and provide the insights into molecular mechanisms by which PKD-1 regulates transcriptional expression of angiogenic genes, focusing on the transcriptional regulation of CD36 by PKD-1-FoxO1 signaling axis along with the potential implications of this axis in arterial differentiation and morphogenesis. He will also discuss a new concept of dynamic balance between proangiogenic and antiangiogenic signaling in determining angiogenic switch, and stress how PKD-1 signaling regulates VEGF signaling-mediated angiogenesis.
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Affiliation(s)
- Bin Ren
- Department of Medicine, Medical College of WisconsinMilwaukee, WI, USA; Blood Research Institute, Blood Center of WisconsinMilwaukee, WI, USA
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29
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Ren B, Best B, Ramakrishnan DP, Walcott BP, Storz P, Silverstein RL. LPA/PKD-1-FoxO1 Signaling Axis Mediates Endothelial Cell CD36 Transcriptional Repression and Proangiogenic and Proarteriogenic Reprogramming. Arterioscler Thromb Vasc Biol 2016; 36:1197-208. [PMID: 27013613 DOI: 10.1161/atvbaha.116.307421] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2015] [Accepted: 03/10/2016] [Indexed: 11/16/2022]
Abstract
OBJECTIVE CD36 is a scavenger and antiangiogenic receptor that is important in atherothrombotic diseases, diabetes mellitus, cancer, and obesity. Lysophosphatidic acid, a phospholipid signaling mediator, abolishes endothelial cell responses to antiangiogenic proteins containing thrombospondin type 1 homology domains by downregulating endothelial CD36 transcription via protein kinase D1 (PKD-1) signaling. We aimed to understand mechanisms by which lysophosphatidic acid-mediated angiogenic signaling is integrated to regulate CD36 transcription and endothelial cell function via a nuclear transcriptional complex. APPROACH AND RESULTS Microvascular endothelial cells expressing CD36 were used for studying angiogenic signaling and CD36 transcription. Gene transfection and transduction, RT-qPCR, avidin-biotin-conjugated DNA-binding assay, chromatin immunoprecipitation assay, co-immunoprecipitation, proximal ligation assay, and immunofluorescence microscopy showed that lysophosphatidic acid-mediated CD36 transcriptional repression involved PKD-1 signaling mediated formation of forkhead box protein O1-histone deacetylase 7 complex in the nucleus. Unexpectedly, turning off CD36 transcription initiated reprogramming microvascular endothelial cells to express ephrin B2, a critical molecular signature involved in angiogenesis and arteriogenesis. Spheroid-based angiogenesis and in vivo Matrigel angiogenesis assays indicated that angiogenic branching morphogenesis and in vivo angiogenesis were dependent on PKD-1 signaling. A mouse tumor angiogenesis model revealed enhanced PKD-1 signaling and expression of ephrin B2 and smooth muscle actin in neovessels of Lewis Lung Carcinomas, along with low-CD36 expression or CD36 deficiency. CONCLUSIONS Lysophosphatidic acid/PKD-1 signaling leads to nuclear accumulation of histone deacetylase 7, where it interacts with forkhead box protein O1 to suppress endothelial CD36 transcription and mediates silencing of antiangiogenic switch, resulting in proangiogenic and proarteriogenic reprogramming. Targeting this signaling cascade could be a novel approach for ischemic cardiovascular disease and cancer.
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Affiliation(s)
- Bin Ren
- From the Department of Medicine, Medical College of Wisconsin, Milwaukee (B.R., R.L.S.); Blood Research Institute, Blood Center of Wisconsin, Milwaukee (B.R., B.B., D.P.R., R.L.S.); Department of Neurological Surgery, Cardiovascular Research Center, Massachusetts General Hospital & Harvard Medical School, Boston (B.P.W.); and Department of Cancer Biology, Mayo Clinic, Jacksonville, FL (P.S.)
| | - Brad Best
- From the Department of Medicine, Medical College of Wisconsin, Milwaukee (B.R., R.L.S.); Blood Research Institute, Blood Center of Wisconsin, Milwaukee (B.R., B.B., D.P.R., R.L.S.); Department of Neurological Surgery, Cardiovascular Research Center, Massachusetts General Hospital & Harvard Medical School, Boston (B.P.W.); and Department of Cancer Biology, Mayo Clinic, Jacksonville, FL (P.S.)
| | - Devi Prasadh Ramakrishnan
- From the Department of Medicine, Medical College of Wisconsin, Milwaukee (B.R., R.L.S.); Blood Research Institute, Blood Center of Wisconsin, Milwaukee (B.R., B.B., D.P.R., R.L.S.); Department of Neurological Surgery, Cardiovascular Research Center, Massachusetts General Hospital & Harvard Medical School, Boston (B.P.W.); and Department of Cancer Biology, Mayo Clinic, Jacksonville, FL (P.S.)
| | - Brian P Walcott
- From the Department of Medicine, Medical College of Wisconsin, Milwaukee (B.R., R.L.S.); Blood Research Institute, Blood Center of Wisconsin, Milwaukee (B.R., B.B., D.P.R., R.L.S.); Department of Neurological Surgery, Cardiovascular Research Center, Massachusetts General Hospital & Harvard Medical School, Boston (B.P.W.); and Department of Cancer Biology, Mayo Clinic, Jacksonville, FL (P.S.)
| | - Peter Storz
- From the Department of Medicine, Medical College of Wisconsin, Milwaukee (B.R., R.L.S.); Blood Research Institute, Blood Center of Wisconsin, Milwaukee (B.R., B.B., D.P.R., R.L.S.); Department of Neurological Surgery, Cardiovascular Research Center, Massachusetts General Hospital & Harvard Medical School, Boston (B.P.W.); and Department of Cancer Biology, Mayo Clinic, Jacksonville, FL (P.S.)
| | - Roy L Silverstein
- From the Department of Medicine, Medical College of Wisconsin, Milwaukee (B.R., R.L.S.); Blood Research Institute, Blood Center of Wisconsin, Milwaukee (B.R., B.B., D.P.R., R.L.S.); Department of Neurological Surgery, Cardiovascular Research Center, Massachusetts General Hospital & Harvard Medical School, Boston (B.P.W.); and Department of Cancer Biology, Mayo Clinic, Jacksonville, FL (P.S.).
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30
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Affiliation(s)
- Jean-Marc Zingg
- Department of Biochemistry and Molecular Biology, University of Miami, Miami, Florida 33136-6129;
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31
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Binder BYK, Williams PA, Silva EA, Leach JK. Lysophosphatidic Acid and Sphingosine-1-Phosphate: A Concise Review of Biological Function and Applications for Tissue Engineering. TISSUE ENGINEERING PART B-REVIEWS 2015; 21:531-42. [PMID: 26035484 DOI: 10.1089/ten.teb.2015.0107] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The presentation and controlled release of bioactive signals to direct cellular growth and differentiation represents a widely used strategy in tissue engineering. Historically, work in this field has primarily focused on the delivery of large cytokines and growth factors, which can be costly to manufacture and difficult to deliver in a sustained manner. There has been a marked increase over the past decade in the pursuit of lipid mediators due to their wide range of effects over multiple cell types, low cost, and ease of scale-up. Lysophosphatidic acid (LPA) and sphingosine-1-phosphate (S1P) are two bioactive lysophospholipids (LPLs) that have gained attention for use as pharmacological agents in tissue engineering applications. While these lipids can have similar effects on cellular response, they possess distinct chemical backbones, mechanisms of synthesis and degradation, and signaling pathways using a discrete set of G-protein-coupled receptors (GPCRs). LPA and S1P predominantly act extracellularly on their GPCRs and can directly regulate cell survival, differentiation, cytokine secretion, proliferation, and migration--each of the important functions that must be considered in regenerative medicine. In addition to these potent physiological functions, these LPLs play pivotal roles in a number of pathophysiological processes. To capitalize on the promise of these molecules in tissue engineering, these lipids have been incorporated into biomaterials for in vivo delivery. Here, we survey the effects of LPA and S1P on both cellular- and tissue-level phenotypes, with an eye toward regulating stem/progenitor cell growth and differentiation. In particular, we examine work that has translational applications for cell-based tissue engineering strategies in promoting cell survival, bone and cartilage engineering, and therapeutic angiogenesis.
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Affiliation(s)
- Bernard Y K Binder
- 1 Department of Biomedical Engineering, University of California , Davis, Davis, California
| | - Priscilla A Williams
- 1 Department of Biomedical Engineering, University of California , Davis, Davis, California
| | - Eduardo A Silva
- 1 Department of Biomedical Engineering, University of California , Davis, Davis, California
| | - J Kent Leach
- 1 Department of Biomedical Engineering, University of California , Davis, Davis, California.,2 Department of Orthopaedic Surgery, School of Medicine, University of California , Davis, Sacramento, California
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32
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Knowlden SA, Capece T, Popovic M, Chapman TJ, Rezaee F, Kim M, Georas SN. Regulation of T cell motility in vitro and in vivo by LPA and LPA2. PLoS One 2014; 9:e101655. [PMID: 25003200 PMCID: PMC4086949 DOI: 10.1371/journal.pone.0101655] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2013] [Accepted: 06/10/2014] [Indexed: 12/11/2022] Open
Abstract
Lysophosphatidic acid (LPA) and the LPA-generating enzyme autotaxin (ATX) have been implicated in lymphocyte trafficking and the regulation of lymphocyte entry into lymph nodes. High local concentrations of LPA are thought to be present in lymph node high endothelial venules, suggesting a direct influence of LPA on cell migration. However, little is known about the mechanism of action of LPA, and more work is needed to define the expression and function of the six known G protein-coupled receptors (LPA 1-6) in T cells. We studied the effects of 18∶1 and 16∶0 LPA on naïve CD4+ T cell migration and show that LPA induces CD4+ T cell chemorepulsion in a Transwell system, and also improves the quality of non-directed migration on ICAM-1 and CCL21 coated plates. Using intravital two-photon microscopy, lpa2-/- CD4+ T cells display a striking defect in early migratory behavior at HEVs and in lymph nodes. However, later homeostatic recirculation and LPA-directed migration in vitro were unaffected by loss of lpa2. Taken together, these data highlight a previously unsuspected and non-redundant role for LPA2 in intranodal T cell motility, and suggest that specific functions of LPA may be manipulated by targeting T cell LPA receptors.
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Affiliation(s)
- Sara A. Knowlden
- Department of Microbiology and Immunology, University of Rochester Medical Center, Rochester, New York, United States of America
| | - Tara Capece
- Department of Microbiology and Immunology, University of Rochester Medical Center, Rochester, New York, United States of America
| | - Milan Popovic
- Department of Microbiology and Immunology, University of Rochester Medical Center, Rochester, New York, United States of America
| | - Timothy J. Chapman
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, University of Rochester Medical Center, Rochester, New York, United States of America
| | - Fariba Rezaee
- Division of Pediatric Pulmonary Medicine, Department of Pediatrics, University of Rochester Medical Center, Rochester, New York, United States of America
| | - Minsoo Kim
- Department of Microbiology and Immunology, University of Rochester Medical Center, Rochester, New York, United States of America
| | - Steve N. Georas
- Department of Microbiology and Immunology, University of Rochester Medical Center, Rochester, New York, United States of America
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, University of Rochester Medical Center, Rochester, New York, United States of America
- * E-mail:
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Zingg JM, Libinaki R, Meydani M, Azzi A. Modulation of phosphorylation of tocopherol and phosphatidylinositol by hTAP1/SEC14L2-mediated lipid exchange. PLoS One 2014; 9:e101550. [PMID: 24983950 PMCID: PMC4077815 DOI: 10.1371/journal.pone.0101550] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2014] [Accepted: 06/09/2014] [Indexed: 11/18/2022] Open
Abstract
The vitamin E derivative, alpha-tocopheryl phosphate (αTP), is detectable in cultured cells, plasma and tissues in small amounts, suggesting the existence of enzyme(s) with α-tocopherol (αT) kinase activity. Here, we characterize the production of αTP from αT and [γ-32P]-ATP in primary human coronary artery smooth muscle cells (HCA-SMC) using separation by thin layer chromatography (TLC) and subsequent analysis by Ultra Performance Liquid Chromatography (UPLC). In addition to αT, although to a lower amount, also γT is phosphorylated. In THP-1 monocytes, γTP inhibits cell proliferation and reduces CD36 scavenger receptor expression more potently than αTP. Both αTP and γTP activate the promoter of the human vascular endothelial growth factor (VEGF) gene with similar potency, whereas αT and γT had no significant effect. The recombinant human tocopherol associated protein 1 (hTAP1, hSEC14L2) binds both αT and αTP and stimulates phosphorylation of αT possibly by facilitating its transport and presentation to a putative αT kinase. Recombinant hTAP1 reduces the in vitro activity of the phosphatidylinositol-3-kinase gamma (PI3Kγ) indicating the formation of a stalled/inactive hTAP1/PI3Kγ heterodimer. The addition of αT, βT, γT, δT or αTP differentially stimulates PI3Kγ, suggesting facilitated egress of sequestered PI from hTAP1 to the enzyme. It is suggested that the continuous competitive exchange of different lipophilic ligands in hTAPs with cell enzymes and membranes may be a way to make these lipophiles more accessible as substrates for enzymes and as components of specific membrane domains.
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Affiliation(s)
- Jean-Marc Zingg
- Vascular Biology Laboratory, JM USDA-Human Nutr. Res. Ctr. On Aging, Tufts University, Boston, Massachusetts, United States of America
- * E-mail:
| | - Roksan Libinaki
- Dept. Biochem. and Mol. Biology, Monash University, Melbourne, VIC, Australia
| | - Mohsen Meydani
- Vascular Biology Laboratory, JM USDA-Human Nutr. Res. Ctr. On Aging, Tufts University, Boston, Massachusetts, United States of America
| | - Angelo Azzi
- Vascular Biology Laboratory, JM USDA-Human Nutr. Res. Ctr. On Aging, Tufts University, Boston, Massachusetts, United States of America
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Binder BYK, Genetos DC, Leach JK. Lysophosphatidic acid protects human mesenchymal stromal cells from differentiation-dependent vulnerability to apoptosis. Tissue Eng Part A 2014; 20:1156-64. [PMID: 24131310 DOI: 10.1089/ten.tea.2013.0487] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
The survival of transplanted cells and their resulting efficacy in cell-based therapies is markedly impaired due to serum deprivation and hypoxia (SD/H) resulting from poor vascularization within tissue defects. Lysophosphatidic acid (LPA) is a platelet-derived growth factor with pleiotropic effects on many cell types. Mesenchymal stromal cells (MSC) exhibit unique secretory and stimulatory characteristics depending on their differentiation state. In light of the potential of MSC in cell-based therapies, we examined the ability of LPA to abrogate SD/H-induced apoptosis in human MSC at increasing stages of osteogenic differentiation in vitro and assessed MSC survival in vivo. Undifferentiated MSC were rescued from SD/H-induced apoptosis by treatment with both 25 and 100 μM LPA. However, MSC conditioned with osteogenic supplements responded to 25 μM LPA, and cells conditioned with dexamethasone-containing osteogenic media required 100 μM LPA. This rescue was mediated through LPA1 in all cases. The addition of 25 μM LPA enhanced vascular endothelial growth factor (VEGF) secretion by MSC in all conditions, but VEGF availability was not responsible for protection against apoptosis. We also showed that codelivery of 25 μM LPA with MSC in alginate hydrogels significantly improved the persistence of undifferentiated MSC in vivo over 4 weeks as measured by bioluminescence imaging. Osteogenic differentiation alone was protective of SD/H-induced apoptosis in vitro, and the synergistic delivery of LPA did not enhance persistence of osteogenically induced MSC in vivo. These data demonstrate that the capacity of LPA to inhibit SD/H-induced apoptosis in MSC is dependent on both the differentiation state and dosage. This information will be valuable for optimizing osteogenic conditioning regimens for MSC before in vivo implementation.
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Affiliation(s)
- Bernard Y K Binder
- 1 Department of Biomedical Engineering, University of California , Davis, Davis, California
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35
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Magkrioti C, Aidinis V. Autotaxin and lysophosphatidic acid signalling in lung pathophysiology. World J Respirol 2013; 3:77-103. [DOI: 10.5320/wjr.v3.i3.77] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2013] [Revised: 10/03/2013] [Accepted: 11/19/2013] [Indexed: 02/06/2023] Open
Abstract
Autotaxin (ATX or ENPP2) is a secreted glycoprotein widely present in biological fluids. ATX primarily functions as a plasma lysophospholipase D and is largely responsible for the bulk of lysophosphatidic acid (LPA) production in the plasma and at inflamed and/or malignant sites. LPA is a phospholipid mediator produced in various conditions both in cells and in biological fluids, and it evokes growth-factor-like responses, including cell growth, survival, differentiation and motility, in almost all cell types. The large variety of LPA effector functions is attributed to at least six G-protein coupled LPA receptors (LPARs) with overlapping specificities and widespread distribution. Increased ATX/LPA/LPAR levels have been detected in a large variety of cancers and transformed cell lines, as well as in non-malignant inflamed tissues, suggesting a possible involvement of ATX in chronic inflammatory disorders and cancer. In this review, we focus exclusively on the role of the ATX/LPA axis in pulmonary pathophysiology, analysing the effects of ATX/LPA on pulmonary cells and leukocytes in vitro and in the context of pulmonary pathophysiological situations in vivo and in human diseases.
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Thrombospondin-1 modulates VEGF signaling via CD36 by recruiting SHP-1 to VEGFR2 complex in microvascular endothelial cells. Blood 2013; 122:1822-32. [PMID: 23896411 DOI: 10.1182/blood-2013-01-482315] [Citation(s) in RCA: 113] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Thrombospondin-1 (TSP-1) inhibits growth factor signaling at the receptor level in microvascular endothelial cells (MVEC), and CD36 has been suggested to be involved in this inhibition, but the mechanisms are not known. We hypothesized that CD36-TSP-1 interaction recruits Src homology 2 domain-containing protein tyrosine phosphatase (SHP)-1 to the vascular endothelial growth factor receptor 2 (VEGFR2) signaling complex and attenuates vascular endothelial growth factor (VEGF) signaling. Western blots of anti-CD36 and anti-VEGFR2 immunoprecipitates from VEGF-treated MVEC showed that exposure of the cells to a recombinant protein containing the CD36 binding domain of thrombospondin-1 (known as the TSR domain) induced association of SHP-1 with the VEGFR2/CD36 signaling complex and thereby suppressed VEGFR2 phosphorylation. SHP-1 phosphatase activity was increased in immunoprecipitated VEGFR2 complexes from TSR-treated cells. Silencing CD36 expression in MVEC by small interfering RNA (siRNA) or genetic deletion of cd36 in mice showed that TSR-induced SHP-1/VEGFR2 complex formation required CD36 in vitro and in vivo. Silencing SHP-1 expression in MVEC by siRNA abrogated TSR-mediated inhibition of VEGFR2 phosphorylation as well as TSR-mediated inhibition of VEGF-induced endothelial cell migration and tube formation. These studies reveal a SHP-1-mediated antiangiogenic pathway induced by CD36-TSP-1 interaction that inhibits VEGFR2 signaling and they provide a novel target to modulate angiogenesis therapeutically.
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Ren H, Panchatcharam M, Mueller P, Escalante-Alcalde D, Morris AJ, Smyth SS. Lipid phosphate phosphatase (LPP3) and vascular development. BIOCHIMICA ET BIOPHYSICA ACTA 2013; 1831:126-32. [PMID: 22835522 PMCID: PMC3683602 DOI: 10.1016/j.bbalip.2012.07.012] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2012] [Revised: 07/15/2012] [Accepted: 07/16/2012] [Indexed: 01/12/2023]
Abstract
Lipid phosphate phosphatases (LPP) are integral membrane proteins with broad substrate specificity that dephosphorylate lipid substrates including phosphatidic acid, lysophosphatidic acid, ceramide 1-phosphate, sphingosine 1-phosphate, and diacylglycerol pyrophosphate. Although the three mammalian enzymes (LPP1-3) demonstrate overlapping catalytic activities and substrate preferences in vitro, the phenotypes of mice with targeted inactivation of the Ppap2 genes encoding the LPP enzymes reveal nonredundant functions. A specific role for LPP3 in vascular development has emerged from studies of mice lacking Ppap2b. A meta-analysis of multiple, large genome-wide association studies identified a single nucleotide polymorphism in PPAP2B as a novel predictor of coronary artery disease. In this review, we will discuss the evidence that links LPP3 to vascular development and disease and evaluate potential molecular mechanisms. This article is part of a Special Issue entitled Advances in Lysophospholipid Research.
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Affiliation(s)
- H Ren
- The Gill Heart Institute, Division of Cardiovascular Medicine, Lexington, KY 40536-0200, USA
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38
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Hale JS, Li M, Sinyuk M, Jahnen-Dechent W, Lathia JD, Silverstein RL. Context dependent role of the CD36--thrombospondin--histidine-rich glycoprotein axis in tumor angiogenesis and growth. PLoS One 2012; 7:e40033. [PMID: 22808089 PMCID: PMC3393734 DOI: 10.1371/journal.pone.0040033] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2012] [Accepted: 06/03/2012] [Indexed: 11/19/2022] Open
Abstract
The angiogenic switch is a promising therapeutic target in cancer. Work by our laboratory and others has described an important endogenous anti-angiogenic pathway mediated by interactions of CD36, a receptor on microvascular endothelial cells, with proteins containing thrombospondin (TSP) type I repeat domains (TSR). Recent studies revealed that circulating Histidine Rich Glycoprotein (HRG) inhibits the anti-angiogenic potential of the CD36-TSR pathway by functioning as a decoy receptor that binds and sequesters TSR proteins. As tumors of different origin display variable expression profiles of numerous targets, we hypothesized that the TSP-CD36-HRG axis regulates vascularization and growth in the tumor microenvironment in a context, or tumor type, dependent manner. Growth of Lewis Lung Carcinoma (LL2) and B16F1 Melanoma tumor cell implants in syngeneic wild type (WT), hrg, or cd36 null mice were used as a model to interrogate this signaling axis. LL2 tumor volumes were greater in cd36 null mice and smaller in hrg null mice compared to WT. Immunofluorescent staining showed increased vascularity in cd36 null vs. WT and WT vs. hrg null mice. No differences in tumor growth or vascularity were observed with B16F1 implants, consistent with lack of expression of TSP-1 in B16F1 cells. When TSR expression was induced in B16F1 cells by cDNA transfection, tumor growth and vascularity were similar to that seen with LL2 cells. These data show a role for CD36-mediated anti-angiogenic activity in the tumor microenvironment when TSR proteins are available and demonstrate that HRG modulates this activity. Further, they suggest a mechanism by which tumor microenvironments may regulate sensitivity to TSR containing proteins.
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MESH Headings
- Animals
- CD36 Antigens/deficiency
- CD36 Antigens/genetics
- Carcinoma, Lewis Lung/blood supply
- Carcinoma, Lewis Lung/genetics
- Carcinoma, Lewis Lung/metabolism
- Carcinoma, Lewis Lung/pathology
- Cell Line, Tumor
- Endothelial Cells/metabolism
- Endothelial Cells/pathology
- Gene Expression Regulation, Neoplastic
- Male
- Melanoma, Experimental/blood supply
- Melanoma, Experimental/genetics
- Melanoma, Experimental/metabolism
- Melanoma, Experimental/pathology
- Mice
- Mice, Knockout
- Neovascularization, Pathologic
- Organ Specificity
- Protein Binding
- Proteins/genetics
- Proteins/metabolism
- RNA, Small Interfering/genetics
- Signal Transduction
- Skin Neoplasms/blood supply
- Skin Neoplasms/genetics
- Skin Neoplasms/metabolism
- Skin Neoplasms/pathology
- Thrombospondin 1/genetics
- Thrombospondin 1/metabolism
- Tumor Burden/genetics
- Tumor Microenvironment/genetics
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Affiliation(s)
- James Scott Hale
- Department of Biological, Geological and Environmental Sciences, Cleveland State University, Cleveland, Ohio, United States of America
- Department of Cell Biology, Lerner Research Institute, Cleveland Clinic Foundation and Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine, Cleveland, Ohio, United States of America
| | - Meizhang Li
- Department of Cell Biology, Lerner Research Institute, Cleveland Clinic Foundation and Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine, Cleveland, Ohio, United States of America
| | - Maksim Sinyuk
- Department of Cell Biology, Lerner Research Institute, Cleveland Clinic Foundation and Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine, Cleveland, Ohio, United States of America
| | - Willi Jahnen-Dechent
- Helmholtz Institute for Biomedical Engineering, Rheinisch-Westfälische Technische Hochschule Aachen University Hospital, Aachen, Germany
| | - Justin Durla Lathia
- Department of Cell Biology, Lerner Research Institute, Cleveland Clinic Foundation and Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine, Cleveland, Ohio, United States of America
| | - Roy Lee Silverstein
- Department of Biological, Geological and Environmental Sciences, Cleveland State University, Cleveland, Ohio, United States of America
- Department of Cell Biology, Lerner Research Institute, Cleveland Clinic Foundation and Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine, Cleveland, Ohio, United States of America
- Department of Medicine, Medical College of Wisconsin, Milwaukee, Wisconsin, United States of America
- * E-mail:
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Chu LY, Silverstein RL. CD36 ectodomain phosphorylation blocks thrombospondin-1 binding: structure-function relationships and regulation by protein kinase C. Arterioscler Thromb Vasc Biol 2012; 32:760-7. [PMID: 22247259 DOI: 10.1161/atvbaha.111.242511] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVE CD36 phosphorylation on its extracellular domain inhibits binding of thrombospondin-1. The mechanisms of cellular CD36 ectodomain phosphorylation and whether it can be regulated in cells are not known. We determined structure-function relationships of CD36 phosphorylation related to thrombospondin-1 peptide binding in vitro and explored mechanisms regulating phosphorylation by protein kinase C (PKC) in melanoma cells. METHODS AND RESULTS Phosphorylation of CD36 peptide on Thr92 by PKCα suppressed binding of thrombospondin-1 peptides in vitro, and the level of inhibition correlated with the level of phosphorylation. Basal phosphorylation levels of CD36 in vivo in platelets, endothelial cells, and melanoma cells were assessed by immunoprecipitation and immunoblot and were found to be very low. Treatment of CD36-transfected melanoma cells with phorbol 12-myristate 13-acetate (PMA), a PKC activator, induced substantial CD36 phosphorylation and decreased ligand-mediated recruitment of Src-family proteins to CD36. PMA treatment did not induce detectable extracellular or cell surface-associated kinase activity, and both cycloheximide and brefeldin A blocked CD36 phosphorylation. CONCLUSION New protein synthesis and trafficking through the Golgi are required for PMA-induced CD36 phosphorylation, suggesting that phosphorylation probably occurs intracellularly. These studies suggest a novel in vivo pathway for CD36 phosphorylation that modulates cellular affinity for thrombospondin-related proteins to blunt vascular cell signaling.
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Affiliation(s)
- Ling-Yun Chu
- Department of Cell Biology, Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, OH, USA
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Blaho VA, Hla T. Regulation of mammalian physiology, development, and disease by the sphingosine 1-phosphate and lysophosphatidic acid receptors. Chem Rev 2011; 111:6299-320. [PMID: 21939239 PMCID: PMC3216694 DOI: 10.1021/cr200273u] [Citation(s) in RCA: 113] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Victoria A. Blaho
- Center for Vascular Biology, Department of Pathology and Laboratory Medicine, Weill Medical College of Cornell University, New York, NY 10065
| | - Timothy Hla
- Center for Vascular Biology, Department of Pathology and Laboratory Medicine, Weill Medical College of Cornell University, New York, NY 10065
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