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Chen M, Zhu J, Luo H, Mu W, Guo L. The journey towards physiology and pathology: Tracing the path of neuregulin 4. Genes Dis 2024; 11:687-700. [PMID: 37692526 PMCID: PMC10491916 DOI: 10.1016/j.gendis.2023.03.021] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 02/11/2023] [Accepted: 03/05/2023] [Indexed: 09/12/2023] Open
Abstract
Neuregulin 4 (Nrg4), an epidermal growth factor (EGF) family member, can bind to and activate the ErbB4 receptor tyrosine kinase. Nrg4 has five different isoforms by alternative splicing and performs a wide variety of functions. Nrg4 is involved in a spectrum of physiological processes including neurobiogenesis, lipid metabolism, glucose metabolism, thermogenesis, and angiogenesis. In pathological processes, Nrg4 inhibits inflammatory factor levels and suppresses apoptosis in inflammatory diseases. In addition, Nrg4 could ameliorate obesity, insulin resistance, and cardiovascular diseases. Furthermore, Nrg4 improves non-alcoholic fatty liver disease (NAFLD) by promoting autophagy, improving lipid metabolism, and inhibiting cell death of hepatocytes. Besides, Nrg4 is closely related to the development of cancer, hyperthyroidism, and some other diseases. Therefore, elucidation of the functional role and mechanisms of Nrg4 will provide a clearer view of the therapeutic potential and possible risks of Nrg4.
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Affiliation(s)
- Min Chen
- School of Exercise and Health and Shanghai Frontiers Science Research Base of Exercise and Metabolic Health, Shanghai University of Sport, Shanghai 200438, China
| | - Jieying Zhu
- School of Exercise and Health and Shanghai Frontiers Science Research Base of Exercise and Metabolic Health, Shanghai University of Sport, Shanghai 200438, China
| | - Hongyang Luo
- School of Exercise and Health and Shanghai Frontiers Science Research Base of Exercise and Metabolic Health, Shanghai University of Sport, Shanghai 200438, China
| | - Wangjing Mu
- School of Exercise and Health and Shanghai Frontiers Science Research Base of Exercise and Metabolic Health, Shanghai University of Sport, Shanghai 200438, China
| | - Liang Guo
- School of Exercise and Health and Shanghai Frontiers Science Research Base of Exercise and Metabolic Health, Shanghai University of Sport, Shanghai 200438, China
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2
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Kwon Y, Kang M, Jeon YM, Lee S, Lee HW, Park JS, Kim HJ. Identification and characterization of novel ERBB4 variant associated with sporadic amyotrophic lateral sclerosis (ALS). J Neurol Sci 2024; 457:122885. [PMID: 38278691 DOI: 10.1016/j.jns.2024.122885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 01/11/2024] [Accepted: 01/11/2024] [Indexed: 01/28/2024]
Abstract
Amyotrophic Lateral Sclerosis (ALS) is the most common type of motor neuron disease characterized by progressive motor neuron degeneration in brain and spinal cord. Most cases are sporadic in ALS and 5-10% of cases are familiar. >50 genes are known to be associated with ALS and one of them is ERBB4. In this paper, we report the case of a 53-year-old ALS patient with progressive muscle weakness and fasciculation, but he had no cognitive decline. We performed the next generation sequencing (NGS) and in silico analysis, it predicted a highly pathogenic variant, c.2116 A > G, p.Asn706Asp (N706D) in the ERBB4 gene. The amino acid residue is highly conserved among species. ERBB4 is a member of the ERBB family of receptor tyrosine kinases. ERBB4 has multiple tyrosine phosphorylation sites, including an autophosphorylation site at tyrosine 1284 residue. Autophosphorylation of ERBB4 promotes biological activity and it associated with NRG-1/ERBB4 pathway. It is already known that tyrosine 128 phosphorylation of ERBB4 is decreased in patients who have ALS-associated ERBB4 mutations. We generated ERBB4 N706D construct using site-directed mutagenesis and checked the phosphorylation level of ERBB4 N706D in NSC-34 cells. We found that the phosphorylation of ERBB4 N706D was decreased compared to ERBB4 wild-type, indicating a loss of function mutation in ERBB4. We report a novel variant in ERBB4 gene leading to ALS through dysfunction of ERBB4.
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Affiliation(s)
- Younghwi Kwon
- Dementia Research Group, Korea Brain Research Institute (KBRI), Daegu, South Korea
| | - Minsung Kang
- Department of Neurology, Kyungpook National University Chilgok Hospital, Daegu, Republic of Korea
| | - Yu-Mi Jeon
- Dementia Research Group, Korea Brain Research Institute (KBRI), Daegu, South Korea
| | - Shinrye Lee
- Dementia Research Group, Korea Brain Research Institute (KBRI), Daegu, South Korea
| | - Ho-Won Lee
- Department of Neurology, Kyungpook National University Chilgok Hospital, Daegu, Republic of Korea; Department of Neurology, School of Medicine, Kyungpook National University, Kyungpook National University Chilgok Hospital, Daegu, Republic of Korea; Brain Science & Engineering Institute, Kyungpook National University, Daegu, Republic of Korea
| | - Jin-Sung Park
- Department of Neurology, School of Medicine, Kyungpook National University, Kyungpook National University Chilgok Hospital, Daegu, Republic of Korea; Brain Science & Engineering Institute, Kyungpook National University, Daegu, Republic of Korea.
| | - Hyung-Jun Kim
- Dementia Research Group, Korea Brain Research Institute (KBRI), Daegu, South Korea; Department of Brain Sciences, DGIST, Daegu, South Korea.
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3
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Zihlif M, Hameduh T, Bulatova N, Hammad H. Alteration in the expression of the chemotherapy resistance‑related genes in response to chronic and acute hypoxia in pancreatic cancer. Biomed Rep 2023; 19:88. [PMID: 37901880 PMCID: PMC10603373 DOI: 10.3892/br.2023.1670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Accepted: 09/08/2023] [Indexed: 10/31/2023] Open
Abstract
Pancreatic cancer is currently one of the least curable types of human cancer and remains a key health problem. One of the most important characteristics of pancreatic cancer is its ability to grow under hypoxic conditions. Hypoxia is associated with resistance of cancer cells to radiotherapy and chemotherapy. It is a major contributor to pancreatic cancer genetic instability, which local and systemic resistance that may result in poor clinical outcome. Accordingly, identifying gene expression changes in cancer resistance genes that occur under hypoxic conditions may identify a new therapeutic target. The aim of the present study was to explore the association between hypoxia and resistance to chemotherapy and determine the alteration in the expression of cancer resistance-related genes in the presence of hypoxia. Pancreatic cancer cells (PANC-1) were exposed to 8 h hypoxic episodes (<1% oxygen) three times/week for a total of 20 episodes (chronic hypoxia) or 72 h hypoxic episodes twice/week for a total of 10 episodes (acute hypoxia). The alterations in gene expression were examined using reverse transcription-quantitative PCR array compared with normoxic cells. Chemoresistance of hypoxic cells toward doxorubicin was assessed using MTT cell proliferation assay. Both chronic and acute hypoxia induced chemoresistance toward doxorubicin in PANC-1 pancreatic cancer cell line. The greatest changes occurred in estrogen Receptor Alpha Gene (ESR1) and ETS Like-1 protein (ELK1) pathways, in nucleic transcription factor Peroxisome proliferator-activated receptors (PPARs) and in a cell cycle inhibitor cyclin dependent kinase inhibitor 1A (CDKN1A). The present study demonstrated that exposing cells to prolonged hypoxia results in different gene expression changes involving pleotropic pathways that serve a role in inducing resistance in pancreatic cancer.
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Affiliation(s)
- Malek Zihlif
- Department of Pharmacology, School of Medicine, The University of Jordan, Amman 11942, Jordan
| | - Tareq Hameduh
- Department of Pharmacology, School of Medicine, The University of Jordan, Amman 11942, Jordan
| | - Nailya Bulatova
- Department of Biopharmaceutics and Clinical Pharmacy, School of Pharmacy, The University of Jordan, Amman 11942, Jordan
| | - Hana Hammad
- Department of Biology, School of Science, The University of Jordan, Amman 11942, Jordan
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4
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An extracellular receptor tyrosine kinase motif orchestrating intracellular STAT activation. Nat Commun 2022; 13:6953. [PMID: 36376313 PMCID: PMC9663514 DOI: 10.1038/s41467-022-34539-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Accepted: 10/27/2022] [Indexed: 11/16/2022] Open
Abstract
The ErbB4 receptor isoforms JM-a and JM-b differ within their extracellular juxtamembrane (eJM) domains. Here, ErbB4 isoforms are used as a model to address the effect of structural variation in the eJM domain of receptor tyrosine kinases (RTK) on downstream signaling. A specific JM-a-like sequence motif is discovered, and its presence or absence (in JM-b-like RTKs) in the eJM domains of several RTKs is demonstrated to dictate selective STAT activation. STAT5a activation by RTKs including the JM-a like motif is shown to involve interaction with oligosaccharides of N-glycosylated cell surface proteins such as β1 integrin, whereas STAT5b activation by JM-b is dependent on TYK2. ErbB4 JM-a- and JM-b-like RTKs are shown to associate with specific signaling complexes at different cell surface compartments using analyses of RTK interactomes and super-resolution imaging. These findings provide evidence for a conserved mechanism linking a ubiquitous extracellular motif in RTKs with selective intracellular STAT signaling.
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5
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Kong Q, Ke M, Weng Y, Qin Y, He A, Li P, Cai Z, Tian R. Dynamic Phosphotyrosine-Dependent Signaling Profiling in Living Cells by Two-Dimensional Proximity Proteomics. J Proteome Res 2022; 21:2727-2735. [DOI: 10.1021/acs.jproteome.2c00418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Qian Kong
- Department of Chemistry, College of Science, Southern University of Science and Technology, 1088 Xueyuan Road, Shenzhen 518055, China
- Research Center for Chemical Biology and Omics Analysis, College of Science, Southern University of Science and Technology, 1088 Xueyuan Road, Shenzhen 518055, China
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Kowloon Tong 999077, Hong Kong SAR, China
| | - Mi Ke
- Department of Chemistry, College of Science, Southern University of Science and Technology, 1088 Xueyuan Road, Shenzhen 518055, China
- Research Center for Chemical Biology and Omics Analysis, College of Science, Southern University of Science and Technology, 1088 Xueyuan Road, Shenzhen 518055, China
| | - Yicheng Weng
- Department of Chemistry, College of Science, Southern University of Science and Technology, 1088 Xueyuan Road, Shenzhen 518055, China
- Research Center for Chemical Biology and Omics Analysis, College of Science, Southern University of Science and Technology, 1088 Xueyuan Road, Shenzhen 518055, China
| | - Yunqiu Qin
- Department of Chemistry, College of Science, Southern University of Science and Technology, 1088 Xueyuan Road, Shenzhen 518055, China
- Research Center for Chemical Biology and Omics Analysis, College of Science, Southern University of Science and Technology, 1088 Xueyuan Road, Shenzhen 518055, China
| | - An He
- Department of Chemistry, College of Science, Southern University of Science and Technology, 1088 Xueyuan Road, Shenzhen 518055, China
- Research Center for Chemical Biology and Omics Analysis, College of Science, Southern University of Science and Technology, 1088 Xueyuan Road, Shenzhen 518055, China
| | - Pengfei Li
- Department of Chemistry, College of Science, Southern University of Science and Technology, 1088 Xueyuan Road, Shenzhen 518055, China
- Research Center for Chemical Biology and Omics Analysis, College of Science, Southern University of Science and Technology, 1088 Xueyuan Road, Shenzhen 518055, China
- Shenzhen Grubbs Institute, Southern University of Science and Technology, 1088 Xueyuan Road, Shenzhen 518055, China
| | - Zongwei Cai
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Kowloon Tong 999077, Hong Kong SAR, China
| | - Ruijun Tian
- Department of Chemistry, College of Science, Southern University of Science and Technology, 1088 Xueyuan Road, Shenzhen 518055, China
- Research Center for Chemical Biology and Omics Analysis, College of Science, Southern University of Science and Technology, 1088 Xueyuan Road, Shenzhen 518055, China
- Shenzhen Grubbs Institute, Southern University of Science and Technology, 1088 Xueyuan Road, Shenzhen 518055, China
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6
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Al-Khaldi S, Almohanna F, Barnawi R, Fallatah M, Islam SS, Ghebeh H, Al-Alwan M. Fascin is essential for mammary gland lactogenesis. Dev Biol 2022; 492:25-36. [PMID: 36152869 DOI: 10.1016/j.ydbio.2022.09.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 05/29/2022] [Accepted: 09/16/2022] [Indexed: 11/03/2022]
Abstract
Fascin expression has commonly been observed in certain subtypes of breast cancer, where its expression is associated with poor clinical outcome. However, its role in normal mammary gland development has not been elucidated. Here, we used a fascin knockout mouse model to assess its role in normal mammary gland morphogenesis and lactation. Fascin knockout was not embryonically lethal, and its effect on the litter size or condition at birth was minimal. However, litter survival until the weaning stage significantly depended on fascin expression solely in the nursing dams. Accordingly, pups that nursed from fascin-/- dams had smaller milk spots in their abdomen, suggesting a lactation defect in the nursing dams. Mammary gland whole-mounts of pregnant and lactating fascin-/- mice showed significantly reduced side branching and alveologenesis. Despite a typical composition of basal, luminal, and stromal subsets of mammary cells and normal ductal architecture of myoepithelial and luminal layers, the percentage of alveolar progenitors (ALDH+) in fascin-/- epithelial fraction was significantly reduced. Further in-depth analyses of fascin-/- mammary glands showed a significant reduction in the expression of Elf5, the master regulator of alveologenesis, and a decrease in the activity of its downstream target p-STAT5. In agreement, there was a significant reduction in the expression of the milk proteins, whey acidic protein (WAP), and β-casein in fascin-/- mammary glands. Collectively, our data demonstrate, for the first time, the physiological role of fascin in normal mammary gland lactogenesis, an addition that could reveal its contribution to breast cancer initiation and progression.
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Affiliation(s)
- Samiyah Al-Khaldi
- National Center for Biotechnology, Life Science and Environment Research Institute, King Abdulaziz City for Sciences and Technology, Riyadh, Saudi Arabia.
| | | | | | - Mohannad Fallatah
- National Center for Biotechnology, Life Science and Environment Research Institute, King Abdulaziz City for Sciences and Technology, Riyadh, Saudi Arabia.
| | - Syed S Islam
- Molecular Oncology, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia; Collage of Medicine, Al-Faisal University, Riyadh, Saudi Arabia.
| | - Hazem Ghebeh
- Stem Cell and Tissue Re-Engineering Program, Saudi Arabia; Collage of Medicine, Al-Faisal University, Riyadh, Saudi Arabia.
| | - Monther Al-Alwan
- Stem Cell and Tissue Re-Engineering Program, Saudi Arabia; Collage of Medicine, Al-Faisal University, Riyadh, Saudi Arabia.
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7
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Pitcher JL, Alexander N, Miranda PJ, Johns TG. ErbB4 in the brain: Focus on high grade glioma. Front Oncol 2022; 12:983514. [PMID: 36119496 PMCID: PMC9471956 DOI: 10.3389/fonc.2022.983514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Accepted: 07/28/2022] [Indexed: 11/13/2022] Open
Abstract
The epidermal growth factor receptor (EGFR) family of receptor tyrosine kinases (RTKs) consists of EGFR, ErbB2, ErbB3, and ErbB4. These receptors play key roles in cell proliferation, angiogenesis, cell migration, and in some cases, tumor promotion. ErbB4 is a unique member of the EGFR family, implicated not only in pro-tumorigenic mechanisms, such as cell proliferation and migration, but also in anti-tumorigenic activities, including cell differentiation and apoptosis. ErbB4 is differentially expressed in a wide variety of tissues, and interestingly, as different isoforms that result in vastly different signalling outcomes. Most studies have either ignored the presence of these isoforms or used overexpression models that may mask the true function of ErbB4. ErbB4 is widely expressed throughout the body with significant expression in skeletal tissue, mammary glands, heart, and brain. Knockout models have demonstrated embryonic lethality due to disrupted heart and brain development. Despite high expression in the brain and a critical role in brain development, remarkably little is known about the potential signalling activity of ErbB4 in brain cancer.This review focuses on the unique biology of ErbB4 in the brain, and in particular, highlights brain cancer research findings. We end the review with a focus on high grade gliomas, primarily glioblastoma, a disease that has been shown to involve EGFR and its mutant forms. The role of the different ErbB4 isotypes in high grade gliomas is still unclear and future research will hopefully shed some light on this question.
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Affiliation(s)
- Jamie-Lee Pitcher
- Oncogenic Signalling Laboratory, Telethon Kids Institute, Nedlands, WA, Australia
- School of Biomedical Sciences, University of Western Australia, Crawley, WA, Australia
- *Correspondence: Jamie-Lee Pitcher,
| | - Naomi Alexander
- Oncogenic Signalling Laboratory, Telethon Kids Institute, Nedlands, WA, Australia
| | - Panimaya Jeffreena Miranda
- Oncogenic Signalling Laboratory, Telethon Kids Institute, Nedlands, WA, Australia
- Division of Paediatrics/Centre for Child Health Research, University of Western Australia, Crawley, WA, Australia
| | - Terrance G. Johns
- Oncogenic Signalling Laboratory, Telethon Kids Institute, Nedlands, WA, Australia
- Division of Paediatrics/Centre for Child Health Research, University of Western Australia, Crawley, WA, Australia
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8
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Brockhoff G. "Shedding" light on HER4 signaling in normal and malignant breast tissues. Cell Signal 2022; 97:110401. [PMID: 35820544 DOI: 10.1016/j.cellsig.2022.110401] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 07/05/2022] [Accepted: 07/06/2022] [Indexed: 12/25/2022]
Abstract
Receptor Tyrosine Kinases of the Epidermal Growth Factor Receptor Family play a pivotal role as drivers of carcinogenesis and uncontrolled cell growth for a variety of malignancies, not least for breast cancer. Besides the estrogen receptor, the HER2 receptor was and still is a representative marker for advanced taxonomic sub-differentiation of breast cancer and emerged as one of the first therapeutic targets for antibody based therapies. Since the approval of trastuzumab for the therapy of HER2-positive breast cancer in 1998 anti-HER2 treatment strategies are being modified, refined, and successfully combined with complementary treatments, nevertheless there is still potential for improvement. The HER2 relatives, namely HER1 (i.e., EGFR), HER3 and HER4 share a high degree of molecular homology and together form a functional unit for signal transmission. Under regular conditions, receptor coexpression patterns and receptor interaction represent key parameters for signaling robustness, which ensures cellular growth control and enables tissue differentiation. In addition, treatment efficiency of e.g., an anti-HER2 targeting is substantially determined by the expression pattern of HER receptors on target cells. Within the receptor family, the HER4 plays a particular role and is engaged in exceptional signaling activities. A favorable prognostic impact has been attributed to HER4 expression in breast cancer under specific molecular conditions. HER4-specific cellular effects are initially determined by a ligand-dependent or -independent receptor activation. Essential processes as cell growth and proliferation, cell differentiation, and apoptotic cell death can be initiated by this receptor. This review gives an overview of the role of HER4 in normal and malignant breast epithelial cells and tissues. Specific mechanism of HER4 activation and subsequent intracellular signaling will be described by taking a focus on effects provoked by receptor shedding. HER4 activities and specific effects will be correlated to breast cancer subtypes and the impact of HER4 on course and outcome of disease will be considered. Moreover, current and potential therapeutic approaches will be discussed.
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Affiliation(s)
- Gero Brockhoff
- Department of Gynecology and Obstetrics, University Medical Center Regensburg, Regensburg, Germany.
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9
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Lucas LM, Dwivedi V, Senfeld JI, Cullum RL, Mill CP, Piazza JT, Bryant IN, Cook LJ, Miller ST, Lott JH, Kelley CM, Knerr EL, Markham JA, Kaufmann DP, Jacobi MA, Shen J, Riese DJ. The Yin and Yang of ERBB4: Tumor Suppressor and Oncoprotein. Pharmacol Rev 2022; 74:18-47. [PMID: 34987087 PMCID: PMC11060329 DOI: 10.1124/pharmrev.121.000381] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Accepted: 08/15/2021] [Indexed: 12/11/2022] Open
Abstract
ERBB4 (HER4) is a member of the ERBB family of receptor tyrosine kinases, a family that includes the epidermal growth factor receptor (EGFR/ERBB1/HER1), ERBB2 (Neu/HER2), and ERBB3 (HER3). EGFR and ERBB2 are oncoproteins and validated targets for therapeutic intervention in a variety of solid tumors. In contrast, the role that ERBB4 plays in human malignancies is ambiguous. Thus, here we review the literature regarding ERBB4 function in human malignancies. We review the mechanisms of ERBB4 signaling with an emphasis on mechanisms of signaling specificity. In the context of this signaling specificity, we discuss the hypothesis that ERBB4 appears to function as a tumor suppressor protein and as an oncoprotein. Next, we review the literature that describes the role of ERBB4 in tumors of the bladder, liver, prostate, brain, colon, stomach, lung, bone, ovary, thyroid, hematopoietic tissues, pancreas, breast, skin, head, and neck. Whenever possible, we discuss the possibility that ERBB4 mutants function as biomarkers in these tumors. Finally, we discuss the potential roles of ERBB4 mutants in the staging of human tumors and how ERBB4 function may dictate the treatment of human tumors. SIGNIFICANCE STATEMENT: This articles reviews ERBB4 function in the context of the mechanistic model that ERBB4 homodimers function as tumor suppressors, whereas ERBB4-EGFR or ERBB4-ERBB2 heterodimers act as oncogenes. Thus, this review serves as a mechanistic framework for clinicians and scientists to consider the role of ERBB4 and ERBB4 mutants in staging and treating human tumors.
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Affiliation(s)
- Lauren M Lucas
- Department of Drug Discovery and Development, Harrison School of Pharmacy (L.M.L., V.D., J.I.S., R.L.C., C.P.M., J.T.P., L.J.C., S.T.M., J.H.L., C.M.K., E.L.K., J.A.M., D.P.K., M.A.J., J.S., D.J.R.), and Department of Chemical Engineering, Samuel Ginn College of Engineering (R.L.C.), Auburn University, Auburn, Alabama; The University of Texas M.D. Anderson Cancer Center, Houston, Texas (C.P.M.); Office of the Executive Vice President for Research and Partnerships, Purdue University, West Lafayette, Indiana (I.N.B.); and Cancer Biology and Immunology Program, O'Neal Comprehensive Cancer Center, The University of Alabama at Birmingham, Birmingham, Alabama (D.J.R.)
| | - Vipasha Dwivedi
- Department of Drug Discovery and Development, Harrison School of Pharmacy (L.M.L., V.D., J.I.S., R.L.C., C.P.M., J.T.P., L.J.C., S.T.M., J.H.L., C.M.K., E.L.K., J.A.M., D.P.K., M.A.J., J.S., D.J.R.), and Department of Chemical Engineering, Samuel Ginn College of Engineering (R.L.C.), Auburn University, Auburn, Alabama; The University of Texas M.D. Anderson Cancer Center, Houston, Texas (C.P.M.); Office of the Executive Vice President for Research and Partnerships, Purdue University, West Lafayette, Indiana (I.N.B.); and Cancer Biology and Immunology Program, O'Neal Comprehensive Cancer Center, The University of Alabama at Birmingham, Birmingham, Alabama (D.J.R.)
| | - Jared I Senfeld
- Department of Drug Discovery and Development, Harrison School of Pharmacy (L.M.L., V.D., J.I.S., R.L.C., C.P.M., J.T.P., L.J.C., S.T.M., J.H.L., C.M.K., E.L.K., J.A.M., D.P.K., M.A.J., J.S., D.J.R.), and Department of Chemical Engineering, Samuel Ginn College of Engineering (R.L.C.), Auburn University, Auburn, Alabama; The University of Texas M.D. Anderson Cancer Center, Houston, Texas (C.P.M.); Office of the Executive Vice President for Research and Partnerships, Purdue University, West Lafayette, Indiana (I.N.B.); and Cancer Biology and Immunology Program, O'Neal Comprehensive Cancer Center, The University of Alabama at Birmingham, Birmingham, Alabama (D.J.R.)
| | - Richard L Cullum
- Department of Drug Discovery and Development, Harrison School of Pharmacy (L.M.L., V.D., J.I.S., R.L.C., C.P.M., J.T.P., L.J.C., S.T.M., J.H.L., C.M.K., E.L.K., J.A.M., D.P.K., M.A.J., J.S., D.J.R.), and Department of Chemical Engineering, Samuel Ginn College of Engineering (R.L.C.), Auburn University, Auburn, Alabama; The University of Texas M.D. Anderson Cancer Center, Houston, Texas (C.P.M.); Office of the Executive Vice President for Research and Partnerships, Purdue University, West Lafayette, Indiana (I.N.B.); and Cancer Biology and Immunology Program, O'Neal Comprehensive Cancer Center, The University of Alabama at Birmingham, Birmingham, Alabama (D.J.R.)
| | - Christopher P Mill
- Department of Drug Discovery and Development, Harrison School of Pharmacy (L.M.L., V.D., J.I.S., R.L.C., C.P.M., J.T.P., L.J.C., S.T.M., J.H.L., C.M.K., E.L.K., J.A.M., D.P.K., M.A.J., J.S., D.J.R.), and Department of Chemical Engineering, Samuel Ginn College of Engineering (R.L.C.), Auburn University, Auburn, Alabama; The University of Texas M.D. Anderson Cancer Center, Houston, Texas (C.P.M.); Office of the Executive Vice President for Research and Partnerships, Purdue University, West Lafayette, Indiana (I.N.B.); and Cancer Biology and Immunology Program, O'Neal Comprehensive Cancer Center, The University of Alabama at Birmingham, Birmingham, Alabama (D.J.R.)
| | - J Tyler Piazza
- Department of Drug Discovery and Development, Harrison School of Pharmacy (L.M.L., V.D., J.I.S., R.L.C., C.P.M., J.T.P., L.J.C., S.T.M., J.H.L., C.M.K., E.L.K., J.A.M., D.P.K., M.A.J., J.S., D.J.R.), and Department of Chemical Engineering, Samuel Ginn College of Engineering (R.L.C.), Auburn University, Auburn, Alabama; The University of Texas M.D. Anderson Cancer Center, Houston, Texas (C.P.M.); Office of the Executive Vice President for Research and Partnerships, Purdue University, West Lafayette, Indiana (I.N.B.); and Cancer Biology and Immunology Program, O'Neal Comprehensive Cancer Center, The University of Alabama at Birmingham, Birmingham, Alabama (D.J.R.)
| | - Ianthe N Bryant
- Department of Drug Discovery and Development, Harrison School of Pharmacy (L.M.L., V.D., J.I.S., R.L.C., C.P.M., J.T.P., L.J.C., S.T.M., J.H.L., C.M.K., E.L.K., J.A.M., D.P.K., M.A.J., J.S., D.J.R.), and Department of Chemical Engineering, Samuel Ginn College of Engineering (R.L.C.), Auburn University, Auburn, Alabama; The University of Texas M.D. Anderson Cancer Center, Houston, Texas (C.P.M.); Office of the Executive Vice President for Research and Partnerships, Purdue University, West Lafayette, Indiana (I.N.B.); and Cancer Biology and Immunology Program, O'Neal Comprehensive Cancer Center, The University of Alabama at Birmingham, Birmingham, Alabama (D.J.R.)
| | - Laura J Cook
- Department of Drug Discovery and Development, Harrison School of Pharmacy (L.M.L., V.D., J.I.S., R.L.C., C.P.M., J.T.P., L.J.C., S.T.M., J.H.L., C.M.K., E.L.K., J.A.M., D.P.K., M.A.J., J.S., D.J.R.), and Department of Chemical Engineering, Samuel Ginn College of Engineering (R.L.C.), Auburn University, Auburn, Alabama; The University of Texas M.D. Anderson Cancer Center, Houston, Texas (C.P.M.); Office of the Executive Vice President for Research and Partnerships, Purdue University, West Lafayette, Indiana (I.N.B.); and Cancer Biology and Immunology Program, O'Neal Comprehensive Cancer Center, The University of Alabama at Birmingham, Birmingham, Alabama (D.J.R.)
| | - S Tyler Miller
- Department of Drug Discovery and Development, Harrison School of Pharmacy (L.M.L., V.D., J.I.S., R.L.C., C.P.M., J.T.P., L.J.C., S.T.M., J.H.L., C.M.K., E.L.K., J.A.M., D.P.K., M.A.J., J.S., D.J.R.), and Department of Chemical Engineering, Samuel Ginn College of Engineering (R.L.C.), Auburn University, Auburn, Alabama; The University of Texas M.D. Anderson Cancer Center, Houston, Texas (C.P.M.); Office of the Executive Vice President for Research and Partnerships, Purdue University, West Lafayette, Indiana (I.N.B.); and Cancer Biology and Immunology Program, O'Neal Comprehensive Cancer Center, The University of Alabama at Birmingham, Birmingham, Alabama (D.J.R.)
| | - James H Lott
- Department of Drug Discovery and Development, Harrison School of Pharmacy (L.M.L., V.D., J.I.S., R.L.C., C.P.M., J.T.P., L.J.C., S.T.M., J.H.L., C.M.K., E.L.K., J.A.M., D.P.K., M.A.J., J.S., D.J.R.), and Department of Chemical Engineering, Samuel Ginn College of Engineering (R.L.C.), Auburn University, Auburn, Alabama; The University of Texas M.D. Anderson Cancer Center, Houston, Texas (C.P.M.); Office of the Executive Vice President for Research and Partnerships, Purdue University, West Lafayette, Indiana (I.N.B.); and Cancer Biology and Immunology Program, O'Neal Comprehensive Cancer Center, The University of Alabama at Birmingham, Birmingham, Alabama (D.J.R.)
| | - Connor M Kelley
- Department of Drug Discovery and Development, Harrison School of Pharmacy (L.M.L., V.D., J.I.S., R.L.C., C.P.M., J.T.P., L.J.C., S.T.M., J.H.L., C.M.K., E.L.K., J.A.M., D.P.K., M.A.J., J.S., D.J.R.), and Department of Chemical Engineering, Samuel Ginn College of Engineering (R.L.C.), Auburn University, Auburn, Alabama; The University of Texas M.D. Anderson Cancer Center, Houston, Texas (C.P.M.); Office of the Executive Vice President for Research and Partnerships, Purdue University, West Lafayette, Indiana (I.N.B.); and Cancer Biology and Immunology Program, O'Neal Comprehensive Cancer Center, The University of Alabama at Birmingham, Birmingham, Alabama (D.J.R.)
| | - Elizabeth L Knerr
- Department of Drug Discovery and Development, Harrison School of Pharmacy (L.M.L., V.D., J.I.S., R.L.C., C.P.M., J.T.P., L.J.C., S.T.M., J.H.L., C.M.K., E.L.K., J.A.M., D.P.K., M.A.J., J.S., D.J.R.), and Department of Chemical Engineering, Samuel Ginn College of Engineering (R.L.C.), Auburn University, Auburn, Alabama; The University of Texas M.D. Anderson Cancer Center, Houston, Texas (C.P.M.); Office of the Executive Vice President for Research and Partnerships, Purdue University, West Lafayette, Indiana (I.N.B.); and Cancer Biology and Immunology Program, O'Neal Comprehensive Cancer Center, The University of Alabama at Birmingham, Birmingham, Alabama (D.J.R.)
| | - Jessica A Markham
- Department of Drug Discovery and Development, Harrison School of Pharmacy (L.M.L., V.D., J.I.S., R.L.C., C.P.M., J.T.P., L.J.C., S.T.M., J.H.L., C.M.K., E.L.K., J.A.M., D.P.K., M.A.J., J.S., D.J.R.), and Department of Chemical Engineering, Samuel Ginn College of Engineering (R.L.C.), Auburn University, Auburn, Alabama; The University of Texas M.D. Anderson Cancer Center, Houston, Texas (C.P.M.); Office of the Executive Vice President for Research and Partnerships, Purdue University, West Lafayette, Indiana (I.N.B.); and Cancer Biology and Immunology Program, O'Neal Comprehensive Cancer Center, The University of Alabama at Birmingham, Birmingham, Alabama (D.J.R.)
| | - David P Kaufmann
- Department of Drug Discovery and Development, Harrison School of Pharmacy (L.M.L., V.D., J.I.S., R.L.C., C.P.M., J.T.P., L.J.C., S.T.M., J.H.L., C.M.K., E.L.K., J.A.M., D.P.K., M.A.J., J.S., D.J.R.), and Department of Chemical Engineering, Samuel Ginn College of Engineering (R.L.C.), Auburn University, Auburn, Alabama; The University of Texas M.D. Anderson Cancer Center, Houston, Texas (C.P.M.); Office of the Executive Vice President for Research and Partnerships, Purdue University, West Lafayette, Indiana (I.N.B.); and Cancer Biology and Immunology Program, O'Neal Comprehensive Cancer Center, The University of Alabama at Birmingham, Birmingham, Alabama (D.J.R.)
| | - Megan A Jacobi
- Department of Drug Discovery and Development, Harrison School of Pharmacy (L.M.L., V.D., J.I.S., R.L.C., C.P.M., J.T.P., L.J.C., S.T.M., J.H.L., C.M.K., E.L.K., J.A.M., D.P.K., M.A.J., J.S., D.J.R.), and Department of Chemical Engineering, Samuel Ginn College of Engineering (R.L.C.), Auburn University, Auburn, Alabama; The University of Texas M.D. Anderson Cancer Center, Houston, Texas (C.P.M.); Office of the Executive Vice President for Research and Partnerships, Purdue University, West Lafayette, Indiana (I.N.B.); and Cancer Biology and Immunology Program, O'Neal Comprehensive Cancer Center, The University of Alabama at Birmingham, Birmingham, Alabama (D.J.R.)
| | - Jianzhong Shen
- Department of Drug Discovery and Development, Harrison School of Pharmacy (L.M.L., V.D., J.I.S., R.L.C., C.P.M., J.T.P., L.J.C., S.T.M., J.H.L., C.M.K., E.L.K., J.A.M., D.P.K., M.A.J., J.S., D.J.R.), and Department of Chemical Engineering, Samuel Ginn College of Engineering (R.L.C.), Auburn University, Auburn, Alabama; The University of Texas M.D. Anderson Cancer Center, Houston, Texas (C.P.M.); Office of the Executive Vice President for Research and Partnerships, Purdue University, West Lafayette, Indiana (I.N.B.); and Cancer Biology and Immunology Program, O'Neal Comprehensive Cancer Center, The University of Alabama at Birmingham, Birmingham, Alabama (D.J.R.)
| | - David J Riese
- Department of Drug Discovery and Development, Harrison School of Pharmacy (L.M.L., V.D., J.I.S., R.L.C., C.P.M., J.T.P., L.J.C., S.T.M., J.H.L., C.M.K., E.L.K., J.A.M., D.P.K., M.A.J., J.S., D.J.R.), and Department of Chemical Engineering, Samuel Ginn College of Engineering (R.L.C.), Auburn University, Auburn, Alabama; The University of Texas M.D. Anderson Cancer Center, Houston, Texas (C.P.M.); Office of the Executive Vice President for Research and Partnerships, Purdue University, West Lafayette, Indiana (I.N.B.); and Cancer Biology and Immunology Program, O'Neal Comprehensive Cancer Center, The University of Alabama at Birmingham, Birmingham, Alabama (D.J.R.)
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10
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Mazumder A, Shiao S, Haricharan S. HER2 Activation and Endocrine Treatment Resistance in HER2-negative Breast Cancer. Endocrinology 2021; 162:6329618. [PMID: 34320193 PMCID: PMC8379900 DOI: 10.1210/endocr/bqab153] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Indexed: 11/19/2022]
Abstract
The lethality of estrogen receptor alpha positive (ER+) breast cancer, which is often considered to have better prognosis than other subtypes, is defined by resistance to the standard of care endocrine treatment. Relapse and metastasis are inevitable in almost every patient whose cancer is resistant to endocrine treatment. Therefore, understanding the underlying causes of treatment resistance remains an important biological and clinical focus of research in this area. Growth factor receptor pathway activation, specifically HER2 activation, has been identified as 1 mechanism of endocrine treatment resistance across a range of experimental model systems. However, clinical trials conducted to test whether targeting HER2 benefits patients with endocrine treatment-resistant ER+ breast cancer have consistently and disappointingly shown mixed results. One reason for the failure of these clinical trials could be the complexity of crosstalk between ER, HER2, and other growth factor receptors and the fluidity of HER2 activation in these cells, which makes it challenging to identify stratifiers for this targeted intervention. In the absence of stratifiers that can be assayed at diagnosis to allow prospective tailoring of HER2 inhibition to the right patients, clinical trials will continue to disappoint. To understand stratifiers, it is important that the field invests in key understudied areas of research including characterization of the tumor secretome and receptor activation in response to endocrine treatment, and mapping the ER-HER2 growth factor network in the normal and developing mammary gland. Understanding these mechanisms further is critical to improving outcomes for the hard-to-treat endocrine treatment-resistant ER+ breast cancer cohort.
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Affiliation(s)
- Aloran Mazumder
- Aging and Cancer Immuno-oncology, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037, USA
| | - Stephen Shiao
- Radiation Oncology, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Svasti Haricharan
- Aging and Cancer Immuno-oncology, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037, USA
- Correspondence: Svasti Haricharan, PhD, Sanford Burnham Prebys, 10901 N Torrey Pines Rd, La Jolla, CA, USA.
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11
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Wang Z, Chan HW, Gambarotta G, Smith NJ, Purdue BW, Pennisi DJ, Porrello ER, O'Brien SL, Reichelt ME, Thomas WG, Paravicini TM. Stimulation of the four isoforms of receptor tyrosine kinase ErbB4, but not ErbB1, confers cardiomyocyte hypertrophy. J Cell Physiol 2021; 236:8160-8170. [PMID: 34170016 DOI: 10.1002/jcp.30487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 06/03/2021] [Accepted: 06/09/2021] [Indexed: 11/11/2022]
Abstract
Epidermal growth factor (EGF) receptors (ErbB1-ErbB4) promote cardiac development and growth, although the specific EGF ligands and receptor isoforms involved in growth/repair versus pathology remain undefined. We challenged ventricular cardiomyocytes with EGF-like ligands and observed that selective activation of ErbB4 (the receptor for neuregulin 1 [NRG1]), but not ErbB1 (the receptor for EGF, EGFR), stimulated hypertrophy. This lack of direct ErbB1-mediated hypertrophy occurred despite robust activation of extracellular-regulated kinase 1/2 (ERK) and protein kinase B. Hypertrophic responses to NRG1 were unaffected by the tyrosine kinase inhibitor (AG1478) at concentrations that are selective for ErbB1 over ErbB4. NRG1-induced cardiomyocyte enlargement was suppressed by small interfering RNA (siRNA) knockdown of ErbB4 and ErbB2, whereas ERK phosphorylation was only suppressed by ErbB4 siRNA. Four ErbB4 isoforms exist (JM-a/JM-b and CYT-1/CYT-2), generated by alternative splicing, and their expression declines postnatally and following cardiac hypertrophy. Silencing of all four isoforms in cardiomyocytes, using an ErbB4 siRNA, abrogated NRG1-induced hypertrophic promoter/reporter activity, which was rescued by coexpression of knockdown-resistant versions of the ErbB4 isoforms. Thus, ErbB4 confers cardiomyocyte hypertrophy to NRG1, and all four ErbB4 isoforms possess the capacity to mediate this effect.
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Affiliation(s)
- Zhen Wang
- School of Biomedical Sciences, Faculty of Medicine, The University of Queensland, Brisbane, Queensland, Australia
| | - Hsiu-Wen Chan
- School of Public Health, Faculty of Medicine, The University of Queensland, Brisbane, Queensland, Australia
| | - Giovanna Gambarotta
- Department of Clinical and Biological Sciences, University of Torino, Orbassano, Torino, Italy
| | - Nicola J Smith
- School of Medical Sciences, Faculty of Medicine, The University of New South Wales, Sydney, New South Wales, Australia
| | - Brooke W Purdue
- School of Biomedical Sciences, Faculty of Medicine, The University of Queensland, Brisbane, Queensland, Australia
| | - David J Pennisi
- Institute of Health and Biomedical Innovation, School of Biomedical Sciences, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Enzo R Porrello
- Murdoch Children's Research Institute, Melbourne, Victoria, Australia.,Department of Physiology, The University of Melbourne, Melbourne, Victoria, Australia
| | - Shannon L O'Brien
- School of Biomedical Sciences, Faculty of Medicine, The University of Queensland, Brisbane, Queensland, Australia
| | - Melissa E Reichelt
- School of Biomedical Sciences, Faculty of Medicine, The University of Queensland, Brisbane, Queensland, Australia
| | - Walter G Thomas
- School of Biomedical Sciences, Faculty of Medicine, The University of Queensland, Brisbane, Queensland, Australia
| | - Tamara M Paravicini
- School of Biomedical Sciences, Faculty of Medicine, The University of Queensland, Brisbane, Queensland, Australia.,School of Health and Biomedical Sciences, RMIT University, Melbourne, Victoria, Australia
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12
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Hua G, Bergon A, Cauchy P, Kahn-Perlès B, Bertucci F, Birnbaum D, Benkirane-Jessel N, Imbert J. ERBB2b mRNA isoform encodes a nuclear variant of the ERBB2 oncogene in breast cancer. J Cell Biochem 2020; 121:4870-4886. [PMID: 32628295 DOI: 10.1002/jcb.29762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Accepted: 05/05/2020] [Indexed: 11/10/2022]
Abstract
The presence of nuclear ERBB2 receptor-type tyrosine kinase is one of the causes of the resistance to membrane ERBB2-targeted therapy in breast cancers. It has been previously reported that this nuclear location arises through at least two different mechanisms: proteolytic shedding of the extracellular domain of the full-length receptor and translation of the messenger RNA (mRNA)-encoding ERBB2 from internal initiation codons. Here, we report a new mechanism and function where a significant portion of nuclear ERBB2 results from the translation of the variant ERBB2 mRNA under the transcriptional control of a distal promoter that is actively used in breast cancer cells. We show that both membrane ERBB2a and nuclear ERBB2b isoforms are prevalently expressed in breast cancer cell lines and carcinoma samples. The ERBB2b isoform, which is translated from mRNA variant 2, can directly translocate into the nucleus due to the lack of the signal peptide which is required for an intermediate membrane location. Small interfering RNA-mediated gene silencing showed that ERBB2b can repress ERBB2a expression, encoded by variant 1, whereas ERBB2a activates ERBB2b. Nuclear ERBB2 binding to its own promoter was revealed by chromatin immunoprecipitation assay. Altogether, our results provide new insights into the origin and function of nuclear ERBB2 where it can participate at the same time in a positive or a negative feedback autoregulatory loop, dependent on which of its promoters this bona fide transcription factor is acting. They also provide a new understanding for the resistance to therapies targeting the membrane-anchored ERBB2 in breast cancer.
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Affiliation(s)
- Guoqiang Hua
- INSERM UMR1090 TAGC, Aix-Marseille University, Marseille, France
- INSERM UMR1260, RNM, FMTS, Strasbourg, France
- Faculté de Chirurgie Dentaire de Strasbourg, Université de Strasbourg, Strasbourg, France
| | - Aurélie Bergon
- INSERM UMR1090 TAGC, Aix-Marseille University, Marseille, France
| | - Pierre Cauchy
- INSERM UMR1090 TAGC, Aix-Marseille University, Marseille, France
- Max Planck Institute of Immunobiology and Epigenetics, Freiburg im Breisgau, Germany
| | | | - François Bertucci
- Laboratoire d'Oncologie Prédictive, CRCM, CNRS UMR 7258, INSERM U1068, Institut Paoli-Calmettes, Aix-Marseille University, Marseille, France
| | - Daniel Birnbaum
- Laboratoire d'Oncologie Prédictive, CRCM, CNRS UMR 7258, INSERM U1068, Institut Paoli-Calmettes, Aix-Marseille University, Marseille, France
| | - Nadia Benkirane-Jessel
- INSERM UMR1260, RNM, FMTS, Strasbourg, France
- Faculté de Chirurgie Dentaire de Strasbourg, Université de Strasbourg, Strasbourg, France
| | - Jean Imbert
- INSERM UMR1090 TAGC, Aix-Marseille University, Marseille, France
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13
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Benoist L, Corre E, Bernay B, Henry J, Zatylny-Gaudin C. -Omic Analysis of the Sepia officinalis White Body: New Insights into Multifunctionality and Haematopoiesis Regulation. J Proteome Res 2020; 19:3072-3087. [PMID: 32643382 DOI: 10.1021/acs.jproteome.0c00100] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Cephalopods, like other protostomes, lack an adaptive immune system and only rely on an innate immune system. The main immune cells are haemocytes (Hcts), which are able to respond to pathogens and external attacks. First reports based on morphological observations revealed that the white body (WB) located in the optic sinuses of cuttlefish was the origin of Hcts. Combining transcriptomic and proteomic analyses, we identified several factors known to be involved in haematopoiesis in vertebrate species in cuttlefish WB. Among these factors, members of the JAK-STAT signaling pathway were identified, some of them for the first time in a molluscan transcriptome and proteome. Immune factors, such as members of the Toll/NF-κB signaling pathway, pattern recognition proteins and receptors, and members of the oxidative stress responses, were also identified, and support an immune role of the WB. Both transcriptome and proteome analyses revealed that the WB harbors an intense metabolism concurrent with the haematopoietic function. Finally, a comparative analysis of the WB and Hct proteomes revealed many proteins in common, confirming previous morphological studies on the origin of Hcts in cuttlefish. This molecular work demonstrates that the WB is multifunctional and provides bases for haematopoiesis regulation in cuttlefish.
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Affiliation(s)
- Louis Benoist
- NORMANDIE UNIV, UNICAEN, CNRS, BOREA, 14000 Caen, France.,Laboratoire de Biologie des Organismes et Ecosystèmes Aquatiques (BOREA), Université de Caen-Normandie, MNHN, SU, UA, CNRS, IRD, Esplanade de la paix, 14032 Caen Cedex, France
| | - Erwan Corre
- Plateforme ABiMS, Station Biologique de Roscoff (CNRS-Sorbonne Université), 29688 Roscoff, France
| | - Benoit Bernay
- Plateforme PROTEOGEN, SF 4206 ICORE, Normandie université, Esplanade de la Paix, 14032 Caen Cedex, France
| | - Joel Henry
- NORMANDIE UNIV, UNICAEN, CNRS, BOREA, 14000 Caen, France.,Laboratoire de Biologie des Organismes et Ecosystèmes Aquatiques (BOREA), Université de Caen-Normandie, MNHN, SU, UA, CNRS, IRD, Esplanade de la paix, 14032 Caen Cedex, France
| | - Céline Zatylny-Gaudin
- NORMANDIE UNIV, UNICAEN, CNRS, BOREA, 14000 Caen, France.,Laboratoire de Biologie des Organismes et Ecosystèmes Aquatiques (BOREA), Université de Caen-Normandie, MNHN, SU, UA, CNRS, IRD, Esplanade de la paix, 14032 Caen Cedex, France
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14
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Chen MK, Hsu JL, Hung MC. Nuclear receptor tyrosine kinase transport and functions in cancer. Adv Cancer Res 2020; 147:59-107. [PMID: 32593407 DOI: 10.1016/bs.acr.2020.04.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Signaling functions of plasma membrane-localized receptor tyrosine kinases (RTKs) have been extensively studied after they were first described in the mid-1980s. Plasma membrane RTKs are activated by extracellular ligands and cellular stress stimuli, and regulate cellular responses by activating the downstream effector proteins to initiate a wide range of signaling cascades in the cells. However, increasing evidence indicates that RTKs can also be transported into the intracellular compartments where they phosphorylate traditional effector proteins and non-canonical substrate proteins. In general, internalization that retains the RTK's transmembrane domain begins with endocytosis, and endosomal RTK remains active before being recycled or degraded. Further RTK retrograde transport from endosome-Golgi-ER to the nucleus is primarily dependent on membranes vesicles and relies on the interaction with the COP-I vesicle complex, Sec61 translocon complex, and importin. Internalized RTKs have non-canonical substrates that include transcriptional co-factors and DNA damage response proteins, and many nuclear RTKs harbor oncogenic properties and can enhance cancer progression. Indeed, nuclear-localized RTKs have been shown to positively correlate with cancer recurrence, therapeutic resistance, and poor prognosis of cancer patients. Therefore, understanding the functions of nuclear RTKs and the mechanisms of nuclear RTK transport will further improve our knowledge to evaluate the potential of targeting nuclear RTKs or the proteins involved in their transport as new cancer therapeutic strategies.
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Affiliation(s)
- Mei-Kuang Chen
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States; The University of Texas MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences, Houston, TX, United States
| | - Jennifer L Hsu
- The University of Texas MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences, Houston, TX, United States
| | - Mien-Chie Hung
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States; Graduate Institute of Biomedical Sciences, Research Center for Cancer Biology, and Center for Molecular Medicine, China Medical University, Taichung, Taiwan.
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15
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Kumar R, George B, Campbell MR, Verma N, Paul AM, Melo-Alvim C, Ribeiro L, Pillai MR, da Costa LM, Moasser MM. HER family in cancer progression: From discovery to 2020 and beyond. Adv Cancer Res 2020; 147:109-160. [PMID: 32593399 DOI: 10.1016/bs.acr.2020.04.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The human epidermal growth factor receptor (HER) family of receptor tyrosine kinases (RTKs) are among the first layer of molecules that receive, interpret, and transduce signals leading to distinct cancer cell phenotypes. Since the discovery of the tooth-lid factor-later characterized as the epidermal growth factor (EGF)-and its high-affinity binding EGF receptor, HER kinases have emerged as one of the commonly upregulated or hyperactivated or mutated kinases in epithelial tumors, thus allowing HER1-3 family members to regulate several hallmarks of cancer development and progression. Each member of the HER family exhibits shared and unique structural features to engage multiple receptor activation modes, leading to a range of overlapping and distinct phenotypes. EGFR, the founding HER family member, provided the roadmap for the development of the cell surface RTK-directed targeted cancer therapy by serving as a prototype/precursor for the currently used HER-directed cancer drugs. We herein provide a brief account of the discoveries, defining moments, and historical context of the HER family and guidepost advances in basic, translational, and clinical research that solidified a prominent position of the HER family in cancer research and treatment. We also discuss the significance of HER3 pseudokinase in cancer biology; its unique structural features that drive transregulation among HER1-3, leading to a superior proximal signaling response; and potential role of HER3 as a shared effector of acquired therapeutic resistance against diverse oncology drugs. Finally, we also narrate some of the current drawbacks of HER-directed therapies and provide insights into postulated advances in HER biology with extensive implications of these therapies in cancer research and treatment.
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Affiliation(s)
- Rakesh Kumar
- Cancer Research Program, Rajiv Gandhi Centre for Biotechnology, Trivandrum, Kerala, India; Department of Medicine, Division of Hematology & Oncology, Rutgers New Jersey Medical School, Newark, NJ, United States; Department of Human and Molecular Genetics, Virginia Commonwealth University, School of Medicine, Richmond, VA, United States.
| | - Bijesh George
- Cancer Research Program, Rajiv Gandhi Centre for Biotechnology, Trivandrum, Kerala, India
| | - Marcia R Campbell
- Department of Medicine, Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, CA, United States
| | - Nandini Verma
- Advanced Centre for Treatment, Research and Education in Cancer, Mumbai, India
| | - Aswathy Mary Paul
- Cancer Research Program, Rajiv Gandhi Centre for Biotechnology, Trivandrum, Kerala, India
| | - Cecília Melo-Alvim
- Medical Oncology Department, Hospital de Santa Maria, Centro Hospitalar Universitário Lisboa Norte, Lisbon, Portugal
| | - Leonor Ribeiro
- Medical Oncology Department, Hospital de Santa Maria, Centro Hospitalar Universitário Lisboa Norte, Lisbon, Portugal
| | - M Radhakrishna Pillai
- Cancer Research Program, Rajiv Gandhi Centre for Biotechnology, Trivandrum, Kerala, India
| | - Luis Marques da Costa
- Medical Oncology Department, Hospital de Santa Maria, Centro Hospitalar Universitário Lisboa Norte, Lisbon, Portugal; Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Mark M Moasser
- Department of Medicine, Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, CA, United States.
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16
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Huang S, Hsu L, Chang N. Functional role of WW domain-containing proteins in tumor biology and diseases: Insight into the role in ubiquitin-proteasome system. FASEB Bioadv 2020; 2:234-253. [PMID: 32259050 PMCID: PMC7133736 DOI: 10.1096/fba.2019-00060] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 07/23/2019] [Accepted: 01/31/2020] [Indexed: 01/10/2023] Open
Abstract
The ubiquitin-proteasome system (UPS) governs the protein degradation process and balances proteostasis and cellular homeostasis. It is a well-controlled mechanism, in which removal of the damaged or excessive proteins is essential in driving signal pathways for cell survival or death. Accumulation of damaged proteins and failure in removal may contribute to disease initiation such as in cancers and neurodegenerative diseases. In this notion, specific protein-protein interaction is essential for the recognition of targeted proteins in UPS. WW domain plays an indispensable role in the protein-protein interactions during signaling. Among the 51 WW domain-containing proteins in the human proteomics, near one-quarter of them are involved in the UPS, suggesting that WW domains are crucial modules for driving the protein-protein binding and subsequent ubiquitination and degradation. In this review, we detail a broad spectrum of WW domains in protein-protein recognition, signal transduction, and relevance to diseases. New perspectives in dissecting the molecular interactions are provided.
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Affiliation(s)
- Shenq‐Shyang Huang
- Graduate Program of Biotechnology in MedicineInstitute of Molecular and Cellular BiologyNational Tsing Hua UniversityHsinchuTaiwan, ROC
| | - Li‐Jin Hsu
- Department of Medical Laboratory Science and BiotechnologyNational Cheng Kung University College of MedicineTainanTaiwan, ROC
| | - Nan‐Shan Chang
- Institute of Molecular MedicineNational Cheng Kung University College of MedicineTainanTaiwan, ROC
- Department of NeurochemistryNew York State Institute for Basic Research in Developmental DisabilitiesStaten IslandNYUSA
- Graduate Institute of Biomedical SciencesCollege of MedicineChina Medical UniversityTaichungTaiwan, ROC
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17
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Lee YJ, Ch'ng TH. RIP at the Synapse and the Role of Intracellular Domains in Neurons. Neuromolecular Med 2019; 22:1-24. [PMID: 31346933 DOI: 10.1007/s12017-019-08556-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Accepted: 07/12/2019] [Indexed: 12/18/2022]
Abstract
Regulated intramembrane proteolysis (RIP) occurs in a cell when transmembrane proteins are cleaved by intramembrane proteases such as secretases to generate soluble protein fragments in the extracellular environment and the cytosol. In the cytosol, these soluble intracellular domains (ICDs) have local functions near the site of cleavage or in many cases, translocate to the nucleus to modulate gene expression. While the mechanism of RIP is relatively well studied, the fate and function of ICDs for most substrate proteins remain poorly characterized. In neurons, RIP occurs in various subcellular compartments including at the synapse. In this review, we summarize current research on RIP in neurons, focusing specifically on synaptic proteins where the presence and function of the ICDs have been reported. We also briefly discuss activity-driven processing of RIP substrates at the synapse and the cellular machinery that support long-distance transport of ICDs from the synapse to the nucleus. Finally, we describe future challenges in this field of research in the context of understanding the contribution of ICDs in neuronal function.
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Affiliation(s)
- Yan Jun Lee
- Lee Kong Chian School of Medicine, Nanyang Technological University, Clinical Science Building, 11 Mandalay Road, 10-01-01 M, Singapore, 308232, Singapore.,Interdisciplinary Graduate School (IGS), Nanyang Technological University, Singapore, Singapore
| | - Toh Hean Ch'ng
- Lee Kong Chian School of Medicine, Nanyang Technological University, Clinical Science Building, 11 Mandalay Road, 10-01-01 M, Singapore, 308232, Singapore. .,School of Biological Sciences, Nanyang Technological University, Singapore, Singapore.
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18
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Ghosh A, Radhakrishnan R. Time-dependent antagonist-agonist switching in receptor tyrosine kinase-mediated signaling. BMC Bioinformatics 2019; 20:242. [PMID: 31092187 PMCID: PMC6521356 DOI: 10.1186/s12859-019-2816-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Accepted: 04/15/2019] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND ErbB4/HER4 is a unique member of the ErbB family of receptor tyrosine kinases concerning its activation of anti-proliferative JAK2-STAT5 pathway when stimulated by ligand Neuregulin (NRG). Activation of this pathway leads to expression of genes like β-casein which promote cell differentiation. Recent experimental studies on mouse HC11 mammary epithelial cells stimulated by ligand Neuregulin (NRG) showed a time-dependent switching behavior in the β-casein expression. This behavior cannot be explained using currently available mechanistic models of the JAK-STAT pathway. We constructed an improved mechanistic model which introduces two crucial modifications to the canonical HER4-JAK2-STAT5 pathway based on literature findings. These modifications include competitive HER4 heterodimerization with other members of the ErbB family and a slower JAK2 independent activation STAT5 through HER4. We also performed global sensitivity analysis on the model to test the robustness of the predictions and parameter combinations that are sensitive to the outcome. RESULTS Our model was able to reproduce the time-dependent switching behavior of β-casein and also establish that the modifications mentioned above to the canonical JAK-STAT pathway are necessary to reproduce this behavior. The sensitivity studies show that the competitive HER4 heterodimerization reactions have a profound impact on the sensitivity of the pathway to NRG stimulation, while the slower JAK2-independent pathway is necessary for the late stage promotion of β-casein mRNA transcription. The difference in the time scales of the JAK-dependent and JAK-independent pathways was found to be the main contributing factor to the time-dependent switch. The transport rates controlling activated STAT5 dimer nuclear import and β-casein mRNA export to cytoplasm affected the time delay between NRG stimulation and peak β-casein mRNA activity. CONCLUSION This study highlights the effect of competitive and parallel reaction pathways on both short and long-term dynamics of receptor-mediated signaling. It provides robust and testable predictions of the dynamical behavior of the HER4 mediated JAK-STAT pathway which could be useful in designing treatments for various cancers where this pathway is activated/altered.
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Affiliation(s)
- Alokendra Ghosh
- Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, USA
| | - Ravi Radhakrishnan
- Department of Bioengineering, University of Pennsylvania, Philadelphia, USA
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19
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Bencheikh L, Diop MK, Rivière J, Imanci A, Pierron G, Souquere S, Naimo A, Morabito M, Dussiot M, De Leeuw F, Lobry C, Solary E, Droin N. Dynamic gene regulation by nuclear colony-stimulating factor 1 receptor in human monocytes and macrophages. Nat Commun 2019; 10:1935. [PMID: 31028249 PMCID: PMC6486619 DOI: 10.1038/s41467-019-09970-9] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Accepted: 04/10/2019] [Indexed: 02/06/2023] Open
Abstract
Despite their location at the cell surface, several receptor tyrosine kinases (RTK) are also found in the nucleus, as either intracellular domains or full length proteins. However, their potential nuclear functions remain poorly understood. Here we find that a fraction of full length Colony Stimulating Factor-1 Receptor (CSF-1R), an RTK involved in monocyte/macrophage generation, migrates to the nucleus upon CSF-1 stimulation in human primary monocytes. Chromatin-immunoprecipitation identifies the preferential recruitment of CSF-1R to intergenic regions, where it co-localizes with H3K4me1 and interacts with the transcription factor EGR1. When monocytes are differentiated into macrophages with CSF-1, CSF-1R is redirected to transcription starting sites, colocalizes with H3K4me3, and interacts with ELK and YY1 transcription factors. CSF-1R expression and chromatin recruitment is modulated by small molecule CSF-1R inhibitors and altered in monocytes from chronic myelomonocytic leukemia patients. Unraveling this dynamic non-canonical CSF-1R function suggests new avenues to explore the poorly understood functions of this receptor and its ligands. Receptor tyrosine kinases localize to the cell surface and have been suggested to also have nuclear function. Here the authors provide evidence that Colony Stimulating Factor-1 Receptor (CSF-1R) migrates to the nucleus upon CSF-1 stimulation in monocytes and that upon differentiation into macrophages, CSF-1R localizes to TSS, co-localizes with H3K4me3, and interacts with ELK and YY1.
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Affiliation(s)
- Laura Bencheikh
- INSERM U1170, Gustave Roussy Cancer Center, 94805, Villejuif, France.,Faculté de Médecine, Université Paris-Sud, 94270, Le Kremlin-Bicêtre, France
| | | | - Julie Rivière
- INSERM U1170, Gustave Roussy Cancer Center, 94805, Villejuif, France
| | - Aygun Imanci
- INSERM U1170, Gustave Roussy Cancer Center, 94805, Villejuif, France.,Faculté de Médecine, Université Paris-Sud, 94270, Le Kremlin-Bicêtre, France
| | - Gerard Pierron
- CNRS UMR9196, Gustave Roussy Cancer Center, 94805, Villejuif, France
| | - Sylvie Souquere
- CNRS UMR9196, Gustave Roussy Cancer Center, 94805, Villejuif, France
| | - Audrey Naimo
- INSERM US23, CNRS UMS 3655, AMMICa, Genomic platform, Gustave Roussy Cancer Center, 94805, Villejuif, France
| | - Margot Morabito
- INSERM U1170, Gustave Roussy Cancer Center, 94805, Villejuif, France
| | - Michaël Dussiot
- INSERM U1163, CNRS UMR8254, Institut Imagine, Hôpital Necker Enfants Malades, 75015, Paris, France.,Institut Imagine, Hôpital Necker Enfants Malades, Université Sorbonne-Paris-Cité, 75015, Paris, France.,Laboratoire d'excellence GR-Ex, Institut Imagine, Hôpital Necker Enfants Malades, 75015, Paris, France
| | - Frédéric De Leeuw
- INSERM US23, CNRS UMS 3655, AMMICa, Imaging and Cytometry Platform, Gustave Roussy Cancer Center, 94805, Villejuif, France
| | - Camille Lobry
- INSERM U1170, Gustave Roussy Cancer Center, 94805, Villejuif, France.,Faculté de Médecine, Université Paris-Sud, 94270, Le Kremlin-Bicêtre, France
| | - Eric Solary
- INSERM U1170, Gustave Roussy Cancer Center, 94805, Villejuif, France. .,Faculté de Médecine, Université Paris-Sud, 94270, Le Kremlin-Bicêtre, France. .,Department of Hematology, Gustave Roussy Cancer Center, 94805, Villejuif, France.
| | - Nathalie Droin
- INSERM U1170, Gustave Roussy Cancer Center, 94805, Villejuif, France. .,Faculté de Médecine, Université Paris-Sud, 94270, Le Kremlin-Bicêtre, France. .,INSERM US23, CNRS UMS 3655, AMMICa, Genomic platform, Gustave Roussy Cancer Center, 94805, Villejuif, France.
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20
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Nakajo H, Ishibashi K, Aoyama K, Kubota S, Hasegawa H, Yamaguchi N, Yamaguchi N. Role for tyrosine phosphorylation of SUV39H1 histone methyltransferase in enhanced trimethylation of histone H3K9 via neuregulin-1/ErbB4 nuclear signaling. Biochem Biophys Res Commun 2019; 511:765-771. [PMID: 30833073 DOI: 10.1016/j.bbrc.2019.02.130] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Accepted: 02/24/2019] [Indexed: 02/08/2023]
Abstract
Protein-tyrosine kinases transmit signals by phosphorylating their substrates in diverse cellular events. The receptor-type tyrosine kinase ErbB4, a member of the epidermal growth factor receptor subfamily, is activated and proteolytically cleaved upon ligand stimulation, and the cleaved ErbB4 intracellular domain (4ICD) is released into the cytoplasm and the nucleus. We previously showed that generation of nuclear 4ICD by neuregulin-1 (NRG-1) stimulation enhances the levels of trimethylation of histone H3 at lysine 9 (H3K9me3). However, it remains unclear how nuclear 4ICD enhances H3K9me3 levels. Here we show that the histone H3K9 methyltransferase SUV39H1 associates with NRG-1/ErbB4-mediated H3K9me3. Knockdown of SUV39H1 blocked NRG-1-mediated enhancement of the levels of H3K9me3. Nuclear 4ICD was found to phosphorylate SUV39H1 primarily at Tyr-297, -303, and -308 that are conserved among humans, mice, and flies. Furthermore, knockdown-rescue experiments showed that the unphosphorylatable SUV39H1 mutant (3 YF) was incapable of enhancing the levels of H3K9me3 upon NRG-1 stimulation. These results suggest that nuclear ErbB4 enhances H3K9me3 levels through tyrosine phosphorylation of SUV39H1 in NRG-1/ErbB4 signal-mediated chromatin remodeling.
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Affiliation(s)
- Haruna Nakajo
- Laboratory of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, 260-8675, Japan
| | - Kenichi Ishibashi
- Laboratory of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, 260-8675, Japan
| | - Kazumasa Aoyama
- Laboratory of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, 260-8675, Japan
| | - Sho Kubota
- Laboratory of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, 260-8675, Japan
| | - Hitomi Hasegawa
- Laboratory of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, 260-8675, Japan
| | - Noritaka Yamaguchi
- Laboratory of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, 260-8675, Japan
| | - Naoto Yamaguchi
- Laboratory of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, 260-8675, Japan.
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21
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Immunoreceptor Engineering and Synthetic Cytokine Signaling for Therapeutics. Trends Immunol 2019; 40:258-272. [DOI: 10.1016/j.it.2019.01.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Revised: 01/11/2019] [Accepted: 01/13/2019] [Indexed: 12/25/2022]
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22
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Oikawa N, Walter J. Presenilins and γ-Secretase in Membrane Proteostasis. Cells 2019; 8:cells8030209. [PMID: 30823664 PMCID: PMC6468700 DOI: 10.3390/cells8030209] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 02/26/2019] [Accepted: 02/27/2019] [Indexed: 12/20/2022] Open
Abstract
The presenilin (PS) proteins exert a crucial role in the pathogenesis of Alzheimer disease (AD) by mediating the intramembranous cleavage of amyloid precursor protein (APP) and the generation of amyloid β-protein (Aβ). The two homologous proteins PS1 and PS2 represent the catalytic subunits of distinct γ-secretase complexes that mediate a variety of cellular processes, including membrane protein metabolism, signal transduction, and cell differentiation. While the intramembrane cleavage of select proteins by γ-secretase is critical in the regulation of intracellular signaling pathways, the plethora of identified protein substrates could also indicate an important role of these enzyme complexes in membrane protein homeostasis. In line with this notion, PS proteins and/or γ-secretase has also been implicated in autophagy, a fundamental process for the maintenance of cellular functions and homeostasis. Dysfunction in the clearance of proteins in the lysosome and during autophagy has been shown to contribute to neurodegeneration. This review summarizes the recent knowledge about the role of PS proteins and γ-secretase in membrane protein metabolism and trafficking, and the functional relation to lysosomal activity and autophagy.
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Affiliation(s)
- Naoto Oikawa
- Department of Neurology, University of Bonn, 53127 Bonn, Germany.
| | - Jochen Walter
- Department of Neurology, University of Bonn, 53127 Bonn, Germany.
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23
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Paatero I, Veikkolainen V, Mäenpää M, Schmelzer E, Belting HG, Pelliniemi LJ, Elenius K. ErbB4 tyrosine kinase inhibition impairs neuromuscular development in zebrafish embryos. Mol Biol Cell 2018; 30:209-218. [PMID: 30462579 PMCID: PMC6589560 DOI: 10.1091/mbc.e18-07-0460] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Tyrosine kinase inhibitors are widely used in the clinic, but limited information is available about their toxicity in developing organisms. Here, we tested the effect of tyrosine kinase inhibitors targeting the ErbB receptors for their effects on developing zebrafish (Danio rerio) embryos. Embryos treated with wide-spectrum pan-ErbB inhibitors or erbb4a-targeting antisense oligonucleotides demonstrated reduced locomotion, reduced diameter of skeletal muscle fibers, and reduced expression of muscle-specific genes, as well as reduced motoneuron length. The phenotypes in the skeletal muscle, as well as the defect in motility, were rescued both by microinjection of human ERBB4 mRNA and by transposon-mediated muscle-specific ERBB4 overexpression. The role of ErbB4 in regulating motility was further controlled by targeted mutation of the endogenous erbb4a locus in the zebrafish genome by CRISPR/Cas9. These observations demonstrate a potential for the ErbB tyrosine kinase inhibitors to induce neuromuscular toxicity in a developing organism via a mechanism involving inhibition of ErbB4 function.
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Affiliation(s)
- Ilkka Paatero
- Institute of Biomedicine, University of Turku, FIN-20520 Turku, Finland.,Medicity Research Laboratory, University of Turku, FIN-20520 Turku, Finland.,Laboratory of Animal Physiology, Department of Biology, University of Turku, FIN-20520 Turku, Finland.,Biozentrum der Universität Basel, CH-4056 Basel, Switzerland.,Turku Centre for Biotechnology, University of Turku and Åbo Akademi University, FIN-20520 Turku, Finland
| | - Ville Veikkolainen
- Institute of Biomedicine, University of Turku, FIN-20520 Turku, Finland.,Medicity Research Laboratory, University of Turku, FIN-20520 Turku, Finland
| | - Matias Mäenpää
- Institute of Biomedicine, University of Turku, FIN-20520 Turku, Finland
| | | | | | | | - Klaus Elenius
- Institute of Biomedicine, University of Turku, FIN-20520 Turku, Finland.,Medicity Research Laboratory, University of Turku, FIN-20520 Turku, Finland.,Department of Oncology, University of Turku, FIN-20520 Turku, Finland
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24
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Schoenherr C, Frame MC, Byron A. Trafficking of Adhesion and Growth Factor Receptors and Their Effector Kinases. Annu Rev Cell Dev Biol 2018; 34:29-58. [PMID: 30110558 DOI: 10.1146/annurev-cellbio-100617-062559] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Cell adhesion to macromolecules in the microenvironment is essential for the development and maintenance of tissues, and its dysregulation can lead to a range of disease states, including inflammation, fibrosis, and cancer. The biomechanical and biochemical mechanisms that mediate cell adhesion rely on signaling by a range of effector proteins, including kinases and associated scaffolding proteins. The intracellular trafficking of these must be tightly controlled in space and time to enable effective cell adhesion and microenvironmental sensing and to integrate cell adhesion with, and compartmentalize it from, other cellular processes, such as gene transcription, protein degradation, and cell division. Delivery of adhesion receptors and signaling proteins from the plasma membrane to unanticipated subcellular locales is revealing novel biological functions. Here, we review the expected and unexpected trafficking, and sites of activity, of adhesion and growth factor receptors and intracellular kinase partners as we begin to appreciate the complexity and diversity of their spatial regulation.
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Affiliation(s)
- Christina Schoenherr
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh EH4 2XR, United Kingdom;
| | - Margaret C Frame
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh EH4 2XR, United Kingdom;
| | - Adam Byron
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh EH4 2XR, United Kingdom;
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25
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Merilahti JAM, Elenius K. Gamma-secretase-dependent signaling of receptor tyrosine kinases. Oncogene 2018; 38:151-163. [PMID: 30166589 PMCID: PMC6756091 DOI: 10.1038/s41388-018-0465-z] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Revised: 07/26/2018] [Accepted: 07/27/2018] [Indexed: 12/28/2022]
Abstract
Human genome harbors 55 receptor tyrosine kinases (RTK). At least half of the RTKs have been reported to be cleaved by gamma-secretase-mediated regulated intramembrane proteolysis. The two-step process involves releasing the RTK ectodomain to the extracellular space by proteolytic cleavage called shedding, followed by cleavage in the RTK transmembrane domain by the gamma-secretase complex resulting in release of a soluble RTK intracellular domain. This intracellular domain, including the tyrosine kinase domain, can in turn translocate to various cellular compartments, such as the nucleus or proteasome. The soluble intracellular domain may interact with transcriptional regulators and other proteins to induce specific effects on cell survival, proliferation, and differentiation, establishing an additional signaling mode for the cleavable RTKs. On the other hand, the same process can facilitate RTK turnover and proteasomal degradation. In this review we focus on the regulation of RTK shedding and gamma-secretase cleavage, as well as signaling promoted by the soluble RTK ICDs. In addition, therapeutic implications of increased knowledge on RTK cleavage on cancer drug development are discussed.
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Affiliation(s)
- Johannes A M Merilahti
- Institute of Biomedicine, University of Turku, 20520, Turku, Finland.,Medicity Research Laboratory, University of Turku, 20520, Turku, Finland.,Turku Doctoral Programme of Molecular Medicine, University of Turku, 20520, Turku, Finland
| | - Klaus Elenius
- Institute of Biomedicine, University of Turku, 20520, Turku, Finland. .,Medicity Research Laboratory, University of Turku, 20520, Turku, Finland. .,Department of Oncology, Turku University Hospital, 20520, Turku, Finland.
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26
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Weddell JC, Imoukhuede PI. Integrative meta-modeling identifies endocytic vesicles, late endosome and the nucleus as the cellular compartments primarily directing RTK signaling. Integr Biol (Camb) 2018; 9:464-484. [PMID: 28436498 DOI: 10.1039/c7ib00011a] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Recently, intracellular receptor signaling has been identified as a key component mediating cell responses for various receptor tyrosine kinases (RTKs). However, the extent each endocytic compartment (endocytic vesicle, early endosome, recycling endosome, late endosome, lysosome and nucleus) contributes to receptor signaling has not been quantified. Furthermore, our understanding of endocytosis and receptor signaling is complicated by cell- or receptor-specific endocytosis mechanisms. Therefore, towards understanding the differential endocytic compartment signaling roles, and identifying how to achieve signal transduction control for RTKs, we delineate how endocytosis regulates RTK signaling. We achieve this via a meta-analysis across eight RTKs, integrating computational modeling with experimentally derived cell (compartment volume, trafficking kinetics and pH) and ligand-receptor (ligand/receptor concentration and interaction kinetics) physiology. Our simulations predict the abundance of signaling from eight RTKs, identifying the following hierarchy in RTK signaling: PDGFRβ > IGFR1 > EGFR > PDGFRα > VEGFR1 > VEGFR2 > Tie2 > FGFR1. We find that endocytic vesicles are the primary cell signaling compartment; over 43% of total receptor signaling occurs within the endocytic vesicle compartment for these eight RTKs. Mechanistically, we found that high RTK signaling within endocytic vesicles may be attributed to their low volume (5.3 × 10-19 L) which facilitates an enriched ligand concentration (3.2 μM per ligand molecule within the endocytic vesicle). Under the analyzed physiological conditions, we identified extracellular ligand concentration as the most sensitive parameter to change; hence the most significant one to modify when regulating absolute compartment signaling. We also found that the late endosome and nucleus compartments are important contributors to receptor signaling, where 26% and 18%, respectively, of average receptor signaling occurs across the eight RTKs. Conversely, we found very low membrane-based receptor signaling, exhibiting <1% of the total receptor signaling for these eight RTKs. Moreover, we found that nuclear translocation, mechanistically, requires late endosomal transport; when we blocked receptor trafficking from late endosomes to the nucleus we found a 57% reduction in nuclear translocation. In summary, our research has elucidated the significance of endocytic vesicles, late endosomes and the nucleus in RTK signal propagation.
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Affiliation(s)
- Jared C Weddell
- Department of Bioengineering, University of Illinois at Urbana-Champaign, 1304 W Springfield Ave., 3233 Digital Computer Laboratory, Urbana, IL 61801, USA.
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27
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Wang H, Sun W, Sun M, Fu Z, Zhou C, Wang C, Zuo D, Zhou Z, Wang G, Zhang T, Xu J, Chen J, Wang Z, Yin F, Duan Z, Hornicek FJ, Cai Z, Hua Y. HER4 promotes cell survival and chemoresistance in osteosarcoma via interaction with NDRG1. Biochim Biophys Acta Mol Basis Dis 2018. [PMID: 29524631 DOI: 10.1016/j.bbadis.2018.03.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Osteosarcoma (OS) is the most common primary malignant bone tumor in children and adolescents. The abilities of chemotherapy resistance are major roadblock in the successful treatment of OS. The clarification of mechanism regarding cell survival during OS chemotherapy are important. Here, we examined HER4 expression by immunohistochemistry in a large series of OS tissues, and found HER4 expression correlated with tumor characteristics and patient survival rates. HER4 knockdown by shRNA inhibited OS cell growth and tumorigenesis, and induced cell senescence and apoptosis in vitro and in vivo. We demonstrated that HER4 expression upregulated in the adverse conditions, such as serum starvation and sphere culture. Moreover, HER4 knockdown cells became more sensitive in stressful conditions such as loss of attachment, cytotoxic agents or nutrition insufficiency. Mechanism studies revealed that HER4 interacted with NDRG1, and NDRG1 overexpression could antagonize HER4 knockdown-mediated cell growth and apoptosis in stressed conditions. There was a positive correlation between HER4 and NDRG1 immunoreactivity in OS patients. Together, our present study shows that HER4 and/or NDRG1 might play a critical role for the cell survival and chemo-resistance of OS, and could be used as potential therapeutic targets in OS.
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Affiliation(s)
- Hongsheng Wang
- Department of Orthopedics, Shanghai General Hospital, School of Medicine Shanghai Jiao Tong University, Shanghai, China; Shanghai Bone Tumor Institution, Shanghai, China; Department of Orthopedics, Yangpu Hospital, Tongji University, Shanghai, China
| | - Wei Sun
- Department of Orthopedics, Shanghai General Hospital, School of Medicine Shanghai Jiao Tong University, Shanghai, China; Shanghai Bone Tumor Institution, Shanghai, China
| | - Mengxiong Sun
- Department of Orthopedics, Shanghai General Hospital, School of Medicine Shanghai Jiao Tong University, Shanghai, China; Shanghai Bone Tumor Institution, Shanghai, China
| | - Zeze Fu
- Department of Orthopedics, Shanghai General Hospital, School of Medicine Shanghai Jiao Tong University, Shanghai, China; Shanghai Bone Tumor Institution, Shanghai, China
| | - Chenghao Zhou
- Department of Orthopedics, Shanghai General Hospital, School of Medicine Shanghai Jiao Tong University, Shanghai, China; Shanghai Bone Tumor Institution, Shanghai, China
| | - Chongren Wang
- Department of Orthopedics, Shanghai General Hospital, School of Medicine Shanghai Jiao Tong University, Shanghai, China
| | - Dongqing Zuo
- Department of Orthopedics, Shanghai General Hospital, School of Medicine Shanghai Jiao Tong University, Shanghai, China; Shanghai Bone Tumor Institution, Shanghai, China
| | - Zifei Zhou
- Department of Orthopedics, Shanghai General Hospital, School of Medicine Shanghai Jiao Tong University, Shanghai, China; Shanghai Bone Tumor Institution, Shanghai, China
| | - Gangyang Wang
- Department of Orthopedics, Shanghai General Hospital, School of Medicine Shanghai Jiao Tong University, Shanghai, China; Shanghai Bone Tumor Institution, Shanghai, China
| | - Tao Zhang
- Department of Orthopedics, Shanghai General Hospital, School of Medicine Shanghai Jiao Tong University, Shanghai, China; Shanghai Bone Tumor Institution, Shanghai, China
| | - Jing Xu
- Department of Orthopedics, Shanghai General Hospital, School of Medicine Shanghai Jiao Tong University, Shanghai, China; Shanghai Bone Tumor Institution, Shanghai, China
| | - Jian Chen
- Department of Orthopedics, Shanghai General Hospital, School of Medicine Shanghai Jiao Tong University, Shanghai, China; Shanghai Bone Tumor Institution, Shanghai, China
| | - Zhuoying Wang
- Department of Orthopedics, Shanghai General Hospital, School of Medicine Shanghai Jiao Tong University, Shanghai, China; Shanghai Bone Tumor Institution, Shanghai, China
| | - Fei Yin
- Department of Orthopedics, Shanghai General Hospital, School of Medicine Shanghai Jiao Tong University, Shanghai, China; Shanghai Bone Tumor Institution, Shanghai, China
| | - Zhenfeng Duan
- Center for Sarcoma and Connective Tissue Oncology, Massachusetts General Hospital and Harvard Medical School, USA
| | - Francis J Hornicek
- Department of Orthopedic Surgery David Geffen School of Medicine at UCLA Los Angeles, USA
| | - Zhengdong Cai
- Department of Orthopedics, Shanghai General Hospital, School of Medicine Shanghai Jiao Tong University, Shanghai, China; Shanghai Bone Tumor Institution, Shanghai, China.
| | - Yingqi Hua
- Department of Orthopedics, Shanghai General Hospital, School of Medicine Shanghai Jiao Tong University, Shanghai, China; Shanghai Bone Tumor Institution, Shanghai, China.
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28
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Wang J, Yin J, Yang Q, Ding F, Chen X, Li B, Tian X. Human epidermal growth factor receptor 4 (HER4) is a favorable prognostic marker of breast cancer: a systematic review and meta-analysis. Oncotarget 2018; 7:76693-76703. [PMID: 27736797 PMCID: PMC5363541 DOI: 10.18632/oncotarget.12485] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Accepted: 09/21/2016] [Indexed: 11/25/2022] Open
Abstract
Based on a large cohort of clinical studies involving a total of 8024 patients and reporting the effects of HER4 on breast cancer prognosis, we conducted the first meta-analysis and review of this type. We identified 26 studies published between 1985 and 2016 and assessed the prognostic value of HER4 in breast cancer by either real-time quantitative reverse transcription-polymerase chain reaction (RT-PCR, for mRNA levels) or immunohistochemistry (IHC, for protein levels). Elevated expression of HER4 was significantly associated with longer relapse-free survival (RFS) (HR = 0.63; CI: 0.48-0.83; P = 0.001, random effects). Further subgroup analysis showed that our results were stable irrespective of subtype [Luminal: HR = 0.40, CI: 0.30-0.53, P < 0.001, fixed effects; triple negative breast cancer (TNBC): HR = 0.49, CI: 0.26-0.90, P = 0.02, fixed effects; and HER2-positive: HR = 0.53, CI: 0.40-0.71, P < 0.001, fixed effects]. Cytoplasmic HER4 was more effective than nuclear HER4 (HR = 0.74, CI: 0.60-0.92, P = 0.007, fixed effects) for predicting RFS. HER4 was also found to be a favorable prognostic marker for overall survival (OS) among patients with non-TNBC in the subgroup analysis (Luminal: HR = 0.71, CI: 0.52-0.95, P = 0.023, fixed effects; HER2-positive: HR = 0.48, CI: 0.26-0.89, P = 0.020, fixed effects).
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Affiliation(s)
- Jue Wang
- Department of Breast and Thyroid Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong, China
| | - Jun Yin
- Department of Systems Biology, MD Anderson Cancer Center, Houston, Texas, USA
| | - Qing Yang
- Department of Breast and Thyroid Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong, China
| | - Feng Ding
- Department of Breast and Thyroid Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong, China, Department of General Surgery, Jinan Hospital, Jinan, Shandong, China
| | - Xiao Chen
- Department of Breast and Thyroid Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong, China
| | - Bingjie Li
- Division of Epidemiology, School of Public Health, the University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Xingsong Tian
- Department of Breast and Thyroid Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong, China
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Abstract
Breast cancer affects approximately 1 in 8 women, and it is estimated that over 246,660 women in the USA will be diagnosed with breast cancer in 2016. Breast cancer mortality has decline over the last two decades due to early detection and improved treatment. Over the last few years, there is mounting evidence to demonstrate the prominent role of receptor tyrosine kinases (RTKs) in tumor initiation and progression, and targeted therapies against the RTKs have been developed, evaluated in clinical trials, and approved for many cancer types, including breast cancer. However, not all breast cancers are the same as evidenced by the multiple subtypes of the disease, with some more aggressive than others, showing differential treatment response to different types of drugs. Moreover, in addition to canonical signaling from the cell surface, many RTKs can be trafficked to various subcellular compartments, e.g., the multivesicular body and nucleus, where they carry out critical cellular functions, such as cell proliferation, DNA replication and repair, and therapeutic resistance. In this review, we provide a brief summary on the role of a selected number of RTKs in breast cancer and describe some mechanisms of resistance to targeted therapies.
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Affiliation(s)
- Jennifer L Hsu
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX, 77030, USA.,Center for Molecular Medicine and Graduate Institute of Cancer Biology, China Medical University, Taichung, 404, Taiwan.,Department of Biotechnology, Asia University, Taichung, 413, Taiwan
| | - Mien-Chie Hung
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX, 77030, USA. .,Center for Molecular Medicine and Graduate Institute of Cancer Biology, China Medical University, Taichung, 404, Taiwan. .,Department of Biotechnology, Asia University, Taichung, 413, Taiwan.
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30
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Knittle AM, Helkkula M, Johnson MS, Sundvall M, Elenius K. SUMOylation regulates nuclear accumulation and signaling activity of the soluble intracellular domain of the ErbB4 receptor tyrosine kinase. J Biol Chem 2017; 292:19890-19904. [PMID: 28974580 DOI: 10.1074/jbc.m117.794271] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Revised: 09/22/2017] [Indexed: 01/24/2023] Open
Abstract
Erb-B2 receptor tyrosine kinase 4 (ErbB4) is a kinase that can signal via a proteolytically released intracellular domain (ICD) in addition to classical receptor tyrosine kinase-activated signaling cascades. Previously, we have demonstrated that ErbB4 ICD is posttranslationally modified by the small ubiquitin-like modifier (SUMO) and functionally interacts with the PIAS3 SUMO E3 ligase. However, direct evidence of SUMO modification in ErbB4 signaling has remained elusive. Here, we report that the conserved lysine residue 714 in the ErbB4 ICD undergoes SUMO modification, which was reversed by sentrin-specific proteases (SENPs) 1, 2, and 5. Although ErbB4 kinase activity was not necessary for the SUMOylation, the SUMOylated ErbB4 ICD was tyrosine phosphorylated to a higher extent than unmodified ErbB4 ICD. Mutation of the SUMOylation site compromised neither ErbB4-induced phosphorylation of the canonical signaling pathway effectors Erk1/2, Akt, or STAT5 nor ErbB4 stability. In contrast, SUMOylation was required for nuclear accumulation of the ErbB4 ICD. We also found that Lys-714 was located within a leucine-rich stretch, which resembles a nuclear export signal, and could be inactivated by site-directed mutagenesis. Furthermore, SUMOylation modulated the interaction of ErbB4 with chromosomal region maintenance 1 (CRM1), the major nuclear export receptor for proteins. Finally, the SUMO acceptor lysine was functionally required for ErbB4 ICD-mediated inhibition of mammary epithelial cell differentiation in a three-dimensional cell culture model. Our findings indicate that a SUMOylation-mediated mechanism regulates nuclear localization and function of the ICD of ErbB4 receptor tyrosine kinase.
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Affiliation(s)
- Anna M Knittle
- From the Department of Medical Biochemistry and Genetics, and MediCity Research Laboratory, University of Turku, FI-20520 Turku, Finland.,Turku Doctoral Programmes of Biomedical Sciences and Molecular Medicine, University of Turku, FI-20014 Turku, Finland
| | - Maria Helkkula
- From the Department of Medical Biochemistry and Genetics, and MediCity Research Laboratory, University of Turku, FI-20520 Turku, Finland
| | - Mark S Johnson
- Structural Bioinformatics Laboratory, Biochemistry, Faculty of Science and Engineering, Åbo Akademi University, FI-20500 Turku, Finland, and
| | - Maria Sundvall
- From the Department of Medical Biochemistry and Genetics, and MediCity Research Laboratory, University of Turku, FI-20520 Turku, Finland, .,Department of Oncology and Radiotherapy, University of Turku and Turku University Hospital, FI-20014 Turku, Finland
| | - Klaus Elenius
- From the Department of Medical Biochemistry and Genetics, and MediCity Research Laboratory, University of Turku, FI-20520 Turku, Finland, .,Department of Oncology and Radiotherapy, University of Turku and Turku University Hospital, FI-20014 Turku, Finland
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31
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Unique protein expression signatures of survival time in kidney renal clear cell carcinoma through a pan-cancer screening. BMC Genomics 2017; 18:678. [PMID: 28984208 PMCID: PMC5629613 DOI: 10.1186/s12864-017-4026-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Background In 2016, it is estimated that there will be 62,700 new cases of kidney cancer in the United States, and 14,240 patients will die from the disease. Because the incidence of kidney renal clear cell carcinoma (KIRC), the most common type of kidney cancer, is expected to continue to increase in the US, there is an urgent need to find effective diagnostic biomarkers for KIRC that could help earlier detection of and customized treatment strategies for the disease. Accordingly, in this study we systematically investigated KIRC’s prognostic biomarkers for survival using the reverse phase protein array (RPPA) data and the high throughput sequencing data from The Cancer Genome Atlas (TCGA). Results With comprehensive data available in TCGA, we systematically screened protein expression based survival biomarkers in 10 major cancer types, among which KIRC presented many protein prognostic biomarkers of survival time. This is in agreement with a previous report that expression level changes (mRNAs, microRNA and protein) may have a better performance for prognosis of KIRC. In this study, we also identified 52 prognostic genes for KIRC, many of which are involved in cell-cycle and cancer signaling, as well as 15 tumor-stage-specific prognostic biomarkers. Notably, we found fewer prognostic biomarkers for early-stage than for late-stage KIRC. Four biomarkers (the RPPA protein IDs: FASN, ACC1, Cyclin_B1 and Rad51) were found to be prognostic for survival based on both protein and mRNA expression data. Conclusions Through pan-cancer screening, we found that many protein biomarkers were prognostic for patients’ survival in KIRC. Stage-specific survival biomarkers in KIRC were also identified. Our study indicated that these protein biomarkers might have potential clinical value in terms of predicting survival in KIRC patients and developing individualized treatment strategies. Importantly, we found many biomarkers in KIRC at both the mRNA expression level and the protein expression level. These biomarkers shared a significant overlap, indicating that they were technically replicable. Electronic supplementary material The online version of this article (doi:10.1186/s12864-017-4026-6) contains supplementary material, which is available to authorized users.
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32
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Merilahti JAM, Ojala VK, Knittle AM, Pulliainen AT, Elenius K. Genome-wide screen of gamma-secretase-mediated intramembrane cleavage of receptor tyrosine kinases. Mol Biol Cell 2017; 28:3123-3131. [PMID: 28904208 PMCID: PMC5662267 DOI: 10.1091/mbc.e17-04-0261] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Revised: 08/11/2017] [Accepted: 09/06/2017] [Indexed: 12/20/2022] Open
Abstract
Receptor tyrosine kinases (RTKs) have been demonstrated to signal via regulated intramembrane proteolysis, in which ectodomain shedding and subsequent intramembrane cleavage by gamma-secretase leads to release of a soluble intracellular receptor fragment with functional activity. For most RTKs, however, it is unknown whether they can exploit this new signaling mechanism. Here we used a system-wide screen to address the frequency of susceptibility to gamma-secretase cleavage among human RTKs. The screen covering 45 of the 55 human RTKs identified 12 new as well as all nine previously published gamma-secretase substrates. We biochemically validated the screen by demonstrating that the release of a soluble intracellular fragment from endogenous AXL was dependent on the sheddase disintegrin and metalloprotease 10 (ADAM10) and the gamma-secretase component presenilin-1. Functional analysis of the cleavable RTKs indicated that proliferation promoted by overexpression of the TAM family members AXL or TYRO3 depends on gamma-secretase cleavage. Taken together, these data indicate that gamma-secretase-mediated cleavage provides an additional signaling mechanism for numerous human RTKs.
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Affiliation(s)
- Johannes A M Merilahti
- Department of Medical Biochemistry and Genetics, University of Turku, 20520 Turku, Finland.,Medicity Research Laboratory, University of Turku, 20520 Turku, Finland.,Turku Doctoral Programme of Molecular Medicine, University of Turku, 20520 Turku, Finland
| | - Veera K Ojala
- Department of Medical Biochemistry and Genetics, University of Turku, 20520 Turku, Finland
| | - Anna M Knittle
- Department of Medical Biochemistry and Genetics, University of Turku, 20520 Turku, Finland
| | - Arto T Pulliainen
- Department of Medical Biochemistry and Genetics, University of Turku, 20520 Turku, Finland
| | - Klaus Elenius
- Department of Medical Biochemistry and Genetics, University of Turku, 20520 Turku, Finland .,Medicity Research Laboratory, University of Turku, 20520 Turku, Finland.,Department of Oncology, Turku University Hospital, 20520 Turku, Finland
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33
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Schumacher MA, Hedl M, Abraham C, Bernard JK, Lozano PR, Hsieh JJ, Almohazey D, Bucar EB, Punit S, Dempsey PJ, Frey MR. ErbB4 signaling stimulates pro-inflammatory macrophage apoptosis and limits colonic inflammation. Cell Death Dis 2017; 8:e2622. [PMID: 28230865 PMCID: PMC5386486 DOI: 10.1038/cddis.2017.42] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Revised: 01/14/2017] [Accepted: 01/17/2017] [Indexed: 02/07/2023]
Abstract
Efficient clearance of pro-inflammatory macrophages from tissues after resolution of a challenge is critical to prevent prolonged inflammation. Defects in clearance can contribute to conditions such as inflammatory bowel disease, and thus may be therapeutically targetable. However, the signaling pathways that induce termination of pro-inflammatory macrophages are incompletely defined. We tested whether the ErbB4 receptor tyrosine kinase, previously not known to have role in macrophage biology, is involved in this process. In vitro, pro-inflammatory activation of cultured murine and human macrophages induced ErbB4 expression; in contrast, other ErbB family members were not induced in pro-inflammatory cells, and other innate immune lineages (dendritic cells, neutrophils) did not express detectable ErbB4 levels. Treatment of activated pro-inflammatory macrophages with the ErbB4 ligand neuregulin-4 (NRG4) induced apoptosis. ErbB4 localized to the mitochondria in these cells. Apoptosis was accompanied by loss of mitochondrial membrane potential, and was dependent upon the proteases that generate the cleaved ErbB4 intracellular domain fragment, suggesting a requirement for this fragment and mitochondrial pathway apoptosis. In vivo, ErbB4 was highly expressed on pro-inflammatory macrophages but not neutrophils during experimental DSS colitis in C57Bl/6 mice. Active inflammation in this model suppressed NRG4 expression, which may allow for macrophage persistence and ongoing inflammation. Consistent with this notion, NRG4 levels rebounded during the recovery phase, and administration of exogenous NRG4 during colitis reduced colonic macrophage numbers and ameliorated inflammation. These data define a novel role for ErbB4 in macrophage apoptosis, and outline a mechanism of feedback inhibition that may promote resolution of colitis.
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Affiliation(s)
- Michael A Schumacher
- The Saban Research Institute, Children's Hospital Los Angeles, Los Angeles, CA 90027, USA.,Departments of Pediatrics and of Biochemistry and Molecular Biology, University of Southern California Keck School of Medicine, Los Angeles, CA 90089, USA
| | - Matija Hedl
- Department of Medicine, Yale School of Medicine, New Haven, CT 06510, USA
| | - Clara Abraham
- Department of Medicine, Yale School of Medicine, New Haven, CT 06510, USA
| | - Jessica K Bernard
- The Saban Research Institute, Children's Hospital Los Angeles, Los Angeles, CA 90027, USA.,Departments of Pediatrics and of Biochemistry and Molecular Biology, University of Southern California Keck School of Medicine, Los Angeles, CA 90089, USA.,University of Southern California Herman Ostrow School of Dentistry, Los Angeles, CA 90089, USA
| | - Patricia R Lozano
- The Saban Research Institute, Children's Hospital Los Angeles, Los Angeles, CA 90027, USA
| | - Jonathan J Hsieh
- The Saban Research Institute, Children's Hospital Los Angeles, Los Angeles, CA 90027, USA.,Departments of Pediatrics and of Biochemistry and Molecular Biology, University of Southern California Keck School of Medicine, Los Angeles, CA 90089, USA
| | - Dana Almohazey
- The Saban Research Institute, Children's Hospital Los Angeles, Los Angeles, CA 90027, USA.,Departments of Pediatrics and of Biochemistry and Molecular Biology, University of Southern California Keck School of Medicine, Los Angeles, CA 90089, USA.,University of Southern California Herman Ostrow School of Dentistry, Los Angeles, CA 90089, USA
| | - Edie B Bucar
- The Saban Research Institute, Children's Hospital Los Angeles, Los Angeles, CA 90027, USA.,Departments of Pediatrics and of Biochemistry and Molecular Biology, University of Southern California Keck School of Medicine, Los Angeles, CA 90089, USA
| | - Shivesh Punit
- The Saban Research Institute, Children's Hospital Los Angeles, Los Angeles, CA 90027, USA
| | - Peter J Dempsey
- Department of Pediatrics, University of Colorado Medical School, Aurora, CO 80045, USA
| | - Mark R Frey
- The Saban Research Institute, Children's Hospital Los Angeles, Los Angeles, CA 90027, USA.,Departments of Pediatrics and of Biochemistry and Molecular Biology, University of Southern California Keck School of Medicine, Los Angeles, CA 90089, USA
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34
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Elizalde PV, Cordo Russo RI, Chervo MF, Schillaci R. ErbB-2 nuclear function in breast cancer growth, metastasis and resistance to therapy. Endocr Relat Cancer 2016; 23:T243-T257. [PMID: 27765799 DOI: 10.1530/erc-16-0360] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2016] [Accepted: 10/06/2016] [Indexed: 12/17/2022]
Abstract
Approximately 15-20% of breast cancers (BC) show either membrane overexpression of ErbB-2 (MErbB-2), a member of the ErbBs family of receptor tyrosine kinases, or ERBB2 gene amplification. Until the development of MErbB-2-targeted therapies, this BC subtype, called ErbB-2-positive, was associated with increased metastatic potential and poor prognosis. Although these therapies have significantly improved overall survival and cure rates, resistance to available drugs is still a major clinical issue. In its classical mechanism, MErbB-2 activates downstream signaling cascades, which transduce its effects in BC. The fact that ErbB-2 is also present in the nucleus of BC cells was discovered over twenty years ago. Also, compelling evidence revealed a non-canonical function of nuclear ErbB-2 as a transcriptional regulator. As a deeper understanding of nuclear ErbB-2 actions would be crucial to the disclosure of its role as a biomarker and a target of therapy in BC, we will here review its function in BC, in particular, its role in growth, metastatic spreading and response to currently available MErbB-2-positive BC therapies.
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Affiliation(s)
- Patricia V Elizalde
- Laboratory of Molecular Mechanisms of CarcinogenesisInstituto de Biología y Medicina Experimental, CONICET, Buenos Aires, Argentina
| | - Rosalía I Cordo Russo
- Laboratory of Molecular Mechanisms of CarcinogenesisInstituto de Biología y Medicina Experimental, CONICET, Buenos Aires, Argentina
| | - Maria F Chervo
- Laboratory of Molecular Mechanisms of CarcinogenesisInstituto de Biología y Medicina Experimental, CONICET, Buenos Aires, Argentina
| | - Roxana Schillaci
- Laboratory of Molecular Mechanisms of CarcinogenesisInstituto de Biología y Medicina Experimental, CONICET, Buenos Aires, Argentina
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35
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Han W, Sfondouris ME, Semmes EC, Meyer AM, Jones FE. Intrinsic HER4/4ICD transcriptional activation domains are required for STAT5A activated gene expression. Gene 2016; 592:221-226. [PMID: 27502417 DOI: 10.1016/j.gene.2016.07.071] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Revised: 07/28/2016] [Accepted: 07/31/2016] [Indexed: 11/26/2022]
Abstract
The epidermal growth factor receptor family member HER4 undergoes proteolytic processing at the cell surface to release the HER4 intracellular domain (4ICD) nuclear protein. Interestingly, 4ICD directly interacts with STAT5 and functions as an obligate STAT5 nuclear chaperone. Once in the nucleus 4ICD binds with STAT5 at STAT5 target genes, dramatically potentiating STAT5 transcriptional activation. These observations raise the possibility that 4ICD directly coactivates STAT5 gene expression. Using both yeast and mammalian transactivation reporter assays, we performed truncations of 4ICD fused to a GAL4 DNA binding domain and identified two independent 4ICD transactivation domains located between residues 1022 and 1090 (TAD1) and 1192 and 1225 (TAD2). The ability of the 4ICD DNA binding domain fusions to transactivate reporter gene expression required deletion of the intrinsic tyrosine kinase domain. In addition, we identified the 4ICD carboxyl terminal TVV residues, a PDZ domain binding motif (PDZ-DBM), as a potent transcriptional repressor. The transactivation activity of the HER4 carboxyl terminal domain lacking the tyrosine kinase (CTD) was significantly lower than similar EGFR or HER2 CTD. However, deletion of the HER4 CTD PDZ-DBM enhanced HER4 CTD transactivation to levels equivalent to the EGFR and HER2 CTDs. To determine if 4ICD TAD1 and TAD2 have a physiologically relevant role in STAT5 transactivation, we coexpressed 4ICD or 4ICD lacking TAD2 or both TAD1 and TAD2 with STAT5 in a luciferase reporter assay. Our results demonstrate that each 4ICD TAD contributes additively to STAT5A transactivation and the ability of STAT5A to transactivate the β-casein promoter requires the 4ICD TADs. Taken together, published data and our current results demonstrate that both 4ICD nuclear chaperone and intrinsic coactivation activities are essential for STAT5 regulated gene expression.
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Affiliation(s)
- Wen Han
- Department of Cell and Molecular Biology, Tulane University, New Orleans, LA 70118, USA
| | - Mary E Sfondouris
- Department of Cell and Molecular Biology, Tulane University, New Orleans, LA 70118, USA
| | - Eleanor C Semmes
- Department of Cell and Molecular Biology, Tulane University, New Orleans, LA 70118, USA
| | - Alicia M Meyer
- Department of Cell and Molecular Biology, Tulane University, New Orleans, LA 70118, USA
| | - Frank E Jones
- Department of Cell and Molecular Biology, Tulane University, New Orleans, LA 70118, USA.
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36
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Han W, Sfondouris ME, Jones FE. Direct coupling of the HER4 intracellular domain (4ICD) and STAT5A signaling is required to induce mammary epithelial cell differentiation. Biochem Biophys Rep 2016; 7:323-327. [PMID: 28955922 PMCID: PMC5613636 DOI: 10.1016/j.bbrep.2016.07.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Revised: 06/17/2016] [Accepted: 07/18/2016] [Indexed: 11/29/2022] Open
Abstract
The HER4 receptor tyrosine kinase and STAT5A cooperate to promote mammary luminal progenitor cell maturation and mammary epithelial cell differentiation. Coupled HER4 and STAT5A signaling is mediated, in part, through association of the HER4 intracellular domain (4ICD) with STAT5A at STAT5A target gene promoters where 4ICD functions as a STAT5A transcriptional coactivator. Despite an essential role for coupled 4ICD and STAT5A signaling in mammary gland development, the mechanistic basis of 4ICD and STAT5A cooperative signaling remains unexplored. Here we show for the first time that 4ICD and STAT5A directly interact through STAT5A recruitment and binding to HER4/4ICD residue Y984. Accordingly, altering the 4ICD Y984 to phenylalanine results in a dramatic reduction of STAT5A and 4ICD-Y984F interacting complexes coimmunoprecipitated with HER4 or STAT5A specific antibodies. We further show that disrupting the 4ICD and STAT5A interaction has an important physiological impact on mammary epithelial cell differentiation. HC11 mammary epithelial cells with stable expression of 4ICD undergo differentiation with significantly increased expression of the STAT5A target genes and differentiation markers β-casein and WAP. In contrast, HC11 cells stably expressing 4ICD-Y984F failed to undergo differentiation with basal expression levels of β-casein and WAP. Differentiation in this cell system was induced in the absence of exogenous prolactin indicating that 4ICD activity is sufficient to induce mammary epithelial cell differentiation. Finally, we show that suppression of STAT5A expression abolishes the ability of 4ICD to induce HC11 differentiation and activate β-casein or WAP expression. Taken together our results demonstrate for the first time that direct coupling of 4ICD and STAT5A is both necessary and sufficient to drive mammary epithelial differentiation. In conclusion, our findings that 4ICD and STAT5A directly interact to form a physiologically important transcriptional activation complex, provide a mechanistic basis for the in vivo observations that HER4/4ICD and STAT5A cooperate to promote mammary gland progenitor cell maturation and initiate lactation at parturition. HER4/4ICD tyrosine 984 mediates a direct interaction with STAT5A. 4ICD expression with an intact Y984 is sufficient to induce mammary differentiation. Mammary differentiation is abolished by disrupting the 4ICD and STAT5A interaction. STAT5 expression is required for 4ICD-induced mammary differentiation.
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Key Words
- 4ICD, HER4 intracellular domain
- ATCC, American type culture collection
- EGF, epidermal growth factor
- EGFP, enhanced green fluorescent protein
- EGFR, epidermal growth factor family
- EGFR-family
- ERα, estrogen receptor alpha
- FBS, fetal bovine serum
- Gene expression
- HEK, human embryonic kidney
- HER4/ERBB4
- HRGα, heregulin alpha
- HRGα1, heregulin beta 1
- Mammary epithelial differentiation
- NLS, nuclear localization signal
- PCR, polymerase chain reaction
- PI3K, phosphoinositide 3-kinase
- RIP, regulated intramembrane cleavage
- RT, reverse transcription
- RTK, receptor tyrosine kinase
- SH2, src homology 2
- STAT5A
- STAT5A, signal transducer and activator of transcription 5A
- TACE, tumor necrosis factor-α-converting enzyme
- Transactivation
- WAP, whey acidic protein
- YAP, yes-associated protein
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Affiliation(s)
- Wen Han
- Department of Cell and Molecular Biology, Tulane University, New Orleans, LA 70118, USA
| | - Mary E Sfondouris
- Department of Cell and Molecular Biology, Tulane University, New Orleans, LA 70118, USA
| | - Frank E Jones
- Department of Cell and Molecular Biology, Tulane University, New Orleans, LA 70118, USA
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Differential Expression Patterns of EGF, EGFR, and ERBB4 in Nasal Polyp Epithelium. PLoS One 2016; 11:e0156949. [PMID: 27285994 PMCID: PMC4902223 DOI: 10.1371/journal.pone.0156949] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Accepted: 05/23/2016] [Indexed: 11/24/2022] Open
Abstract
Epidermal growth factor receptors play an important role in airway epithelial cell growth and differentiation. The current study investigates the expression profiles of EGF, EGFR and ERBB4 in patients with nasal polyps (NP), and their response to glucocorticosteroid (GC) treatment. Fifty patients with NP (40 without GC treatment and 10 with oral GC) and 20 control subjects with septal deviation were recruited into the study. Protein levels of EGF, EGFR, and ERBB4 were evaluated by immune-staining. In healthy nasal epithelium, EGF and EGFR localized within p63+ basal cells, while ERBB4 localized within ciliated cells. GC-naïve NP epithelium showed weak expression of EGF in 90% of samples versus 5% of controls. EGFR was significantly increased in the epithelium with basal cell hyperplasia from GC-naïve NPs (78%, 31/40) compared to controls (23%, 4/17). EGFR was also found in some degranulating goblet cells. ERBB4 expression was significantly higher in hyperplastic epithelium from GC-naïve NPs (65%, 26/40) than in controls (6%, 1/17). GC treatment restored the EGF expression and normalized the EGFR and ERBB4 expression in NPs. Differential expression patterns of EGF, EGFR, and ERBB4 are essential in epithelial restitution and remodeling in nasal epithelium.
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38
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Bae SY, Hong JY, Lee HJ, Park HJ, Lee SK. Targeting the degradation of AXL receptor tyrosine kinase to overcome resistance in gefitinib-resistant non-small cell lung cancer. Oncotarget 2016; 6:10146-60. [PMID: 25760142 PMCID: PMC4496346 DOI: 10.18632/oncotarget.3380] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2014] [Accepted: 02/14/2015] [Indexed: 11/25/2022] Open
Abstract
Acquired resistance to epidermal growth factor receptor tyrosine kinase inhibitors (EGFR-TKIs), such as gefitinib, remains a major problem in non-small cell lung cancer (NSCLC) treatment. Increased activation of AXL has been identified as a novel mechanism for acquired resistance to EGFR-TKIs in NSCLC treatment. However, the cause of uncontrolled AXL expression is not fully understood. Here, we first demonstrate that AXL is overexpressed in an acquired gefitinib-resistant cell line (H292-Gef) as a result of slow turnover and that AXL is degraded by presenilin-dependent regulated intramembrane proteolysis (PS-RIP). Based on the findings, we attempted to enhance AXL degradation to overcome acquired gefitinib-resistance by the treatment of gefitinib-resistant NSCLC cells with yuanhuadine (YD), a potent antitumor agent in NSCLC. Treatment with YD effectively suppressed the cancer cell survival in vitro and in vivo. Mechanistically, YD accelerated the turnover of AXL by PS-RIP and resulted in the down-regulation of the full-length AXL. Therefore, the modulation of the proteolytic process through degradation of overexpressed AXL may be an attractive therapeutic strategy for the treatment of NSCLC and EGFR-TKI-resistant NSCLC.
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Affiliation(s)
- Song Yi Bae
- College of Pharmacy, Seoul National University, Seoul 151-742, Korea
| | - Ji-Young Hong
- College of Pharmacy, Seoul National University, Seoul 151-742, Korea
| | - Hye-Jung Lee
- College of Pharmacy, Seoul National University, Seoul 151-742, Korea
| | - Hyen Joo Park
- College of Pharmacy, Seoul National University, Seoul 151-742, Korea
| | - Sang Kook Lee
- College of Pharmacy, Seoul National University, Seoul 151-742, Korea
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Williams MD, Nguyen T, Carriere PP, Tilghman SL, Williams C. Protein Kinase CK2 Expression Predicts Relapse Survival in ERα Dependent Breast Cancer, and Modulates ERα Expression in Vitro. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2015; 13:ijerph13010036. [PMID: 26703694 PMCID: PMC4730427 DOI: 10.3390/ijerph13010036] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/15/2015] [Revised: 10/09/2015] [Accepted: 10/10/2015] [Indexed: 11/16/2022]
Abstract
The heterotetrameric protein kinase CK2 has been associated with oncogenic transformation, and our previous studies have shown that it may affect estrogenic signaling. Here, we investigate the role of the protein kinase CK2 in regulating ERα (estrogen receptor α) signaling in breast cancer. We determined the correlation of CK2α expression with relapse free breast cancer patient survival utilizing Kaplan Meier Plotter (kmplot.com/analysis/) to mine breast cancer microarrays repositories. Patients were stratified according to ERα status, histological grade, and hormonal therapy. Luciferase reporter assays and flow cytometry were implemented to determine the impact of CK2 inhibition on ERE-mediated gene expression and expression of ERα protein. CK2α expression is associated with shorter relapse free survival among ERα (+) patients with grade 1 or 2 tumors, as well as among those patients receiving hormonal therapy. Biochemical inhibition of CK2 activity results in increased ER-transactivation as well as increased expression among ERα (+) and ERα (−) breast cancer cell lines. These findings suggest that CK2 may contribute to estrogen-independent cell proliferation and breast tumor progression, and may potentially serve as a biomarker and pharmacological target in breast cancer.
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Affiliation(s)
- Marlon D Williams
- College of Pharmacy, Xavier University of Louisiana, 1 Drexel Dr, New Orleans, LA 70125, USA.
| | - Thu Nguyen
- College of Pharmacy, Xavier University of Louisiana, 1 Drexel Dr, New Orleans, LA 70125, USA.
| | - Patrick P Carriere
- College of Pharmacy, Xavier University of Louisiana, 1 Drexel Dr, New Orleans, LA 70125, USA.
| | - Syreeta L Tilghman
- Division of Basic Sciences, College of Pharmacy and Pharmaceutical Sciences, Florida Agricultural & Mechanical University, 1415 S. Martin L. King Jr. Blvd., Tallahassee, FL 32307.
| | - Christopher Williams
- College of Pharmacy, Xavier University of Louisiana, 1 Drexel Dr, New Orleans, LA 70125, USA.
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Mohd Nafi SN, Generali D, Kramer-Marek G, Gijsen M, Strina C, Cappelletti M, Andreis D, Haider S, Li JL, Bridges E, Capala J, Ioannis R, Harris AL, Kong A. Nuclear HER4 mediates acquired resistance to trastuzumab and is associated with poor outcome in HER2 positive breast cancer. Oncotarget 2015; 5:5934-49. [PMID: 25153719 PMCID: PMC4171603 DOI: 10.18632/oncotarget.1904] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
The role of HER4 in breast cancer is controversial and its role in relation to trastuzumab resistance remains unclear. We showed that trastuzumab treatment and its acquired resistance induced HER4 upregulation, cleavage and nuclear translocation. However, knockdown of HER4 by specific siRNAs increased trastuzumab sensitivity and reversed its resistance in HER2 positive breast cancer cells. Preventing HER4 cleavage by a γ-secretase inhibitor and inhibiting HER4 tyrosine kinase activity by neratinib decreased trastuzumab-induced HER4 nuclear translocation and enhanced trastuzumab response. There was also increased nuclear HER4 staining in the tumours from BT474 xenograft mice and human patients treated with trastuzumab. Furthermore, nuclear HER4 predicted poor clinical response to trastuzumab monotherapy in patients undergoing a window study and was shown to be an independent poor prognostic factor in HER2 positive breast cancer. Our data suggest that HER4 plays a key role in relation to trastuzumab resistance in HER2 positive breast cancer. Therefore, our study provides novel findings that HER4 activation, cleavage and nuclear translocation influence trastuzumab sensitivity and resistance in HER2 positive breast cancer. Nuclear HER4 could be a potential prognostic and predictive biomarker and understanding the role of HER4 may provide strategies to overcome trastuzumab resistance in HER2 positive breast cancer.
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Affiliation(s)
- Siti Norasikin Mohd Nafi
- Human Epidermal Growth Factor Group, Department of Oncology, Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Oxford, UK
| | - Daniele Generali
- U.O. Multidisciplinare di Patologia Mammaria, U.S Terapia Molecolare e Farmacogenomica, A.O. Instituti Ospitalieri di Cremona, Viale Concordia 1, Cremona, Italy
| | - Gabriela Kramer-Marek
- Institute of Cancer Research, Division of Radiotherapy and Imaging, 15 Cotswold Road, Belmont, Sutton, Surrey, UK
| | - Merel Gijsen
- Human Epidermal Growth Factor Group, Department of Oncology, Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Oxford, UK
| | - Carla Strina
- U.O. Multidisciplinare di Patologia Mammaria, U.S Terapia Molecolare e Farmacogenomica, A.O. Instituti Ospitalieri di Cremona, Viale Concordia 1, Cremona, Italy
| | - Mariarosa Cappelletti
- U.O. Multidisciplinare di Patologia Mammaria, U.S Terapia Molecolare e Farmacogenomica, A.O. Instituti Ospitalieri di Cremona, Viale Concordia 1, Cremona, Italy
| | - Daniele Andreis
- U.O. Multidisciplinare di Patologia Mammaria, U.S Terapia Molecolare e Farmacogenomica, A.O. Instituti Ospitalieri di Cremona, Viale Concordia 1, Cremona, Italy
| | - Syed Haider
- Growth Factor Group, Department of Oncology, Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Oxford, UK
| | - Ji-Liang Li
- Growth Factor Group, Department of Oncology, Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Oxford, UK
| | - Esther Bridges
- Growth Factor Group, Department of Oncology, Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Oxford, UK
| | - Jacek Capala
- National Institutes of Health, Radiation Oncology Branch, Bethesda MD, US
| | - Roxanis Ioannis
- Department of Cellular Pathology, Oxford University Hospitals and Oxford Biomedical Research Centre, Oxford, UK
| | - Adrian L Harris
- Growth Factor Group, Department of Oncology, Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Oxford, UK
| | - Anthony Kong
- Human Epidermal Growth Factor Group, Department of Oncology, Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Oxford, UK
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41
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Boccardi V, Marano L, Rossetti RRA, Rizzo MR, di Martino N, Paolisso G. Serum CD26 levels in patients with gastric cancer: a novel potential diagnostic marker. BMC Cancer 2015; 15:703. [PMID: 26471376 PMCID: PMC4608357 DOI: 10.1186/s12885-015-1757-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2015] [Accepted: 10/09/2015] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND CD26 is an ectoenzyme with dipeptidyl peptidase 4 (DPP4) activity expressed on a variety of cell types. Considering that serum CD26 levels have been previously associated with different cancers, we examined the potential diagnostic value of serum CD26 levels in gastric cancer. METHODS Soluble serum CD26 levels were measured in pre and postoperative serum samples of 30 patients with gastric cancer and in 24 healthy donors by a specific ELISA kit. RESULTS We found significantly lower serum CD26 levels in patients with gastric cancer (557.7 ± 118.3 pg/mL) compared with healthy donors (703.4 ± 170.3 pg/mL). Moreover patients with HER2 positive tumors had significantly lower CD26 serum levels (511.8 ± 84.8 pg/mL) compared with HER2 negative tumors (619.1 ± 109.9 pg/mL, p = 0.006). A binary logistic model having gastric cancer as the dependent variable while age, gender, CEA, CA19.9 and CD26 levels as covariates, showed that CD26 serum levels were independently associated with gastric cancer presence. Indeed after 3 months from surgery serum CD26 levels significantly increased (700.1 ± 119.9 pg/mL vs 557.7 ± 118.3 pg/ml) in all patients (t = -4.454, p < 0.0001). CONCLUSIONS This is a preliminary study showing that the measurement of serum CD26 levels could represent an early detection marker for gastric cancer.
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Affiliation(s)
- Virginia Boccardi
- Department of Internal Medicine, Surgical, Neurological Metabolic Disease and Geriatric Medicine, Second University of Naples, Piazza Miraglia 2, 80138, Naples, Italy.
| | - Luigi Marano
- General, Minimally Invasive and Robotic Surgery, Department of Surgery, "San Matteo degli Infermi" Hospital, ASL Umbria 2, 06049, Spoleto PG, Italy.
| | - Rosaria Rita Amalia Rossetti
- Department of Internal Medicine, Surgical, Neurological Metabolic Disease and Geriatric Medicine, Second University of Naples, Piazza Miraglia 2, 80138, Naples, Italy.
| | - Maria Rosaria Rizzo
- Department of Internal Medicine, Surgical, Neurological Metabolic Disease and Geriatric Medicine, Second University of Naples, Piazza Miraglia 2, 80138, Naples, Italy.
| | - Natale di Martino
- Department of Internal Medicine, Surgical, Neurological Metabolic Disease and Geriatric Medicine, Second University of Naples, Piazza Miraglia 2, 80138, Naples, Italy.
| | - Giuseppe Paolisso
- Department of Internal Medicine, Surgical, Neurological Metabolic Disease and Geriatric Medicine, Second University of Naples, Piazza Miraglia 2, 80138, Naples, Italy.
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42
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Lee HH, Wang YN, Hung MC. Non-canonical signaling mode of the epidermal growth factor receptor family. Am J Cancer Res 2015; 5:2944-58. [PMID: 26693051 PMCID: PMC4656722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2015] [Accepted: 08/18/2015] [Indexed: 06/05/2023] Open
Abstract
Epidermal growth factor receptor (EGFR) and its family members are key players in both physiological and pathological settings for which they are well recognized as models for investigating the functions and regulations of other membrane receptor tyrosine kinases (RTKs) and serve as therapeutic targets critical to clinical need and fundamental research. The canonical view of the pivotal functions in the EGFR family has been well documented as being an initiator of signaling amplification cascades from the plasma membrane to different subcellular compartments via receptor endocytic trafficking, intermolecular interaction, and kinase-substrate reaction in a temporalspatial manner. However, several lines of evidence have identified non-canonical roles of the EGFR family, acting as a transcriptional factor and a chromatin regulator in the nucleus to regulate gene expression, DNA replication, and DNA damage repair. Moreover, the EGFR family can even exert its impact outside the host cell through exosomal vesicle secretion. The emerging concept of the non-canonical roles of the EGFR family reveals an astonishing and elaborate scheme on the molecular functions of membrane RTKs, offering new insights into the receptor biology as well as the development of comprehensive therapeutic strategies in the future.
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Affiliation(s)
- Heng-Huan Lee
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer CenterHouston 77030, TX, USA
| | - Ying-Nai Wang
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer CenterHouston 77030, TX, USA
- Center for Molecular Medicine and Graduate Institute of Cancer Biology, China Medical UniversityTaichung 404, Taiwan
| | - Mien-Chie Hung
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer CenterHouston 77030, TX, USA
- Center for Molecular Medicine and Graduate Institute of Cancer Biology, China Medical UniversityTaichung 404, Taiwan
- The University of Texas Graduate School of Biomedical Sciences at HoustonHouston 77030, TX, USA
- Department of Biotechnology, Asia UniversityTaichung 413, Taiwan
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43
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Marten E, Nielsen HC, Dammann CEL. Interdependent TTF1 - ErbB4 interactions are critical for surfactant protein-B homeostasis in primary mouse lung alveolar type II cells. J Cell Commun Signal 2015. [PMID: 26198867 DOI: 10.1007/s12079-015-0299-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
ErbB4 receptor and thyroid transcription factor (TTF)-1 are important modulators of fetal alveolar type II (ATII) cell development and injury. ErbB4 is an upstream regulator of TTF-1, promoting its expression in MLE-12 cells, an ATII cell line. Both proteins are known to promote surfactant protein-B gene (SftpB) and protein (SP-B) expression, but their feedback interactions on each other are not known. We hypothesized that TTF-1 expression has a feedback effect on ErbB4 expression in an in-vitro model of isolated mouse ATII cells. We tested this hypothesis by analyzing the effects of overexpressing HER4 and Nkx2.1, the genes of ErbB4 and TTF-1 on TTF-1 and ErbB4 protein expression, respectively, as well as SP-B protein expression in primary fetal mouse lung ATII cells. Transient ErbB4 protein overexpression upregulated TTF-1 protein expression in primary fetal ATII cells, similarly to results previously shown in MLE-12 cells. Transient TTF-1 protein overexpression down regulated ErbB4 protein expression in both cell types. TTF-1 protein was upregulated in primary transgenic ErbB4-depleted adult ATII cells, however SP-B protein expression in these adult transgenic ATII cells was not affected by the absence of ErbB4. The observation that TTF-1 is upregulated in fetal ATII cells by ErbB4 overexpression and also in ErbB4-deleted adult ATII cells suggests additional factors interact with ErbB4 to regulate TTF-1 levels. We conclude that the interdependency of TTF-1 and ErbB4 is important for surfactant protein levels. The interactive regulation of ErbB4 and TTF-1 needs further elucidation.
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Affiliation(s)
- Elger Marten
- Division of Newborn Medicine, Floating Hospital for Children at Tufts Medical Center, 800 Washington St, Boston, MA, 02111, USA.,Hannover Medical School, Hannover, 30625, Germany
| | - Heber C Nielsen
- Division of Newborn Medicine, Floating Hospital for Children at Tufts Medical Center, 800 Washington St, Boston, MA, 02111, USA.,Sackler School for Biomedical Sciences, Tufts University, Boston, MA, 02111, USA
| | - Christiane E L Dammann
- Division of Newborn Medicine, Floating Hospital for Children at Tufts Medical Center, 800 Washington St, Boston, MA, 02111, USA. .,Hannover Medical School, Hannover, 30625, Germany. .,Sackler School for Biomedical Sciences, Tufts University, Boston, MA, 02111, USA.
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44
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Chen MK, Hung MC. Proteolytic cleavage, trafficking, and functions of nuclear receptor tyrosine kinases. FEBS J 2015; 282:3693-721. [PMID: 26096795 DOI: 10.1111/febs.13342] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2015] [Revised: 05/18/2015] [Accepted: 06/09/2015] [Indexed: 01/18/2023]
Abstract
Intracellular localization has been reported for over three-quarters of receptor tyrosine kinase (RTK) families in response to environmental stimuli. Internalized RTK may bind to non-canonical substrates and affect various cellular processes. Many of the intracellular RTKs exist as fragmented forms that are generated by γ-secretase cleavage of the full-length receptor, shedding, alternative splicing, or alternative translation initiation. Soluble RTK fragments are stabilized and intracellularly transported into subcellular compartments, such as the nucleus, by binding to chaperone or transcription factors, while membrane-bound RTKs (full-length or truncated) are transported from the plasma membrane to the ER through the well-established Rab- or clathrin adaptor protein-coated vesicle retrograde trafficking pathways. Subsequent nuclear transport of membrane-bound RTK may occur via two pathways, INFS or INTERNET, with the former characterized by release of receptors from the ER into the cytosol and the latter characterized by release of membrane-bound receptor from the ER into the nucleoplasm through the inner nuclear membrane. Although most non-canonical intracellular RTK signaling is related to transcriptional regulation, there may be other functions that have yet to be discovered. In this review, we summarize the proteolytic processing, intracellular trafficking and nuclear functions of RTKs, and discuss how they promote cancer progression, and their clinical implications.
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Affiliation(s)
- Mei-Kuang Chen
- The University of Texas Graduate School of Biomedical Sciences at Houston, Houston, TX, USA.,Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Mien-Chie Hung
- The University of Texas Graduate School of Biomedical Sciences at Houston, Houston, TX, USA.,Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.,Center of Molecular Medicine and Graduate Institute of Cancer Biology, China Medical University, Taichung, Taiwan.,Department of Biotechnology, Asia University, Taichung, Taiwan
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45
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Kurppa KJ, Denessiouk K, Johnson MS, Elenius K. Activating ERBB4 mutations in non-small cell lung cancer. Oncogene 2015; 35:1283-91. [PMID: 26050618 DOI: 10.1038/onc.2015.185] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2014] [Revised: 03/04/2015] [Accepted: 03/06/2015] [Indexed: 01/13/2023]
Abstract
Recent efforts to comprehensively characterize the mutational landscape of non-small cell lung cancer have identified frequent mutations in the receptor tyrosine kinase ERBB4. However, the significance of mutated ERBB4 in non-small cell lung cancer remains elusive. Here, we have functionally characterized nine ERBB4 mutations previously identified in lung adenocarcinoma. Four out of the nine mutations, Y285C, D595V, D931Y and K935I, were found to be activating, increasing both basal and ligand-induced ErbB4 phosphorylation. According to structural analysis, the four activating mutations were located at critical positions at the dimerization interfaces of the ErbB4 extracellular (Y285C and D595V) and kinase (D931Y and K935I) domains. Consistently, the mutations enhanced ErbB4 dimerization and increased the trans activation in ErbB4 homodimers and ErbB4-ErbB2 heterodimers. The expression of the activating ERBB4 mutants promoted survival of NIH 3T3 cells in the absence of serum. Interestingly, serum starvation of NIH 3T3 cells expressing the ERBB4 mutants only moderately increased the phosphorylation of canonical ErbB signaling pathway effectors Erk1/2 and Akt as compared with wild-type ERBB4. In contrast, the mutations clearly enhanced the proteolytic release of signaling-competent ErbB4 intracellular domain. These results suggest the presence of activating driver mutations of ERBB4 in non-small cell lung cancer.
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Affiliation(s)
- K J Kurppa
- MediCity Research Laboratories, Department of Medical Biochemistry and Genetics, University of Turku, Turku, Finland.,Turku Doctoral Programme of Molecular Medicine, Turku, Finland
| | - K Denessiouk
- Structural Bioinformatics Laboratory, Biochemistry, Faculty of Sciences and Engineering, Åbo Akademi University, Turku, Finland
| | - M S Johnson
- Structural Bioinformatics Laboratory, Biochemistry, Faculty of Sciences and Engineering, Åbo Akademi University, Turku, Finland
| | - K Elenius
- MediCity Research Laboratories, Department of Medical Biochemistry and Genetics, University of Turku, Turku, Finland.,Department of Oncology, Turku University Hospital, Turku, Finland
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46
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Fujiwara S, Hung M, Yamamoto-Ibusuk CM, Yamamoto Y, Yamamoto S, Tomiguchi M, Takeshita T, Hayashi M, Sueta A, Iwase H. The localization of HER4 intracellular domain and expression of its alternately-spliced isoforms have prognostic significance in ER+ HER2- breast cancer. Oncotarget 2015; 5:3919-30. [PMID: 25003574 PMCID: PMC4116531 DOI: 10.18632/oncotarget.2002] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Human epidermal growth factor receptors (HERs) are known to play a pivotal role in breast cancer, both as prognostic markers and as therapeutic targets. The importance of Her4 expression is, however, still controversially discussed; there are few reports on the clinical significance of HER4, its splice variants, and cleaved HER4 intracellular domains (4ICD) which function differently depending on their localization in breast cancer. In 238 primary invasive breast cancer patients, we analyzed the expression levels of HER4 extracellular (JM-a and JM-b) and intracellular (CYT-1 and CYT-2) domains as well as 4ICD localization, and tested the relationship with clinicopathological characteristics and prognosis. The predominantly-expressed extracellular domain was JM-a, and lower CYT-2 dominance was a factor related to better relapse-free survival. CYT-2-dominance with higher nuclear 4ICD expression was a favorable prognostic marker especially in patients with the ER+ HER2- subtype treated with endocrine therapy. The absence of cytoplasmic 4ICD staining was related to better prognosis in CYT-1-dominant patients. In conclusion, analysis of splicing variants and 4ICD localization should be considered when targeting HER4 as a novel ER+/HER2- breast cancer treatment.
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Affiliation(s)
- Saori Fujiwara
- Department of Breast and Endocrine Surgery, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto 860-8556, Japan
| | | | | | | | | | | | | | | | | | - Hirotaka Iwase
- Department of Breast and Endocrine Surgery, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto 860-8556, Japan
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47
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Fock V, Plessl K, Fuchs R, Dekan S, Milla SK, Haider S, Fiala C, Knöfler M, Pollheimer J. Trophoblast subtype-specific EGFR/ERBB4 expression correlates with cell cycle progression and hyperplasia in complete hydatidiform moles. Hum Reprod 2015; 30:789-99. [DOI: 10.1093/humrep/dev027] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
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48
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Marano L, Roviello F. The distinctive nature of HER2-positive gastric cancers. Eur J Surg Oncol 2015; 41:271-3. [DOI: 10.1016/j.ejso.2014.12.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Accepted: 12/21/2014] [Indexed: 11/30/2022] Open
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49
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A. Karpov O, W. Fearnley G, A. Smith G, Kankanala J, J. McPherson M, C. Tomlinson D, A. Harrison M, Ponnambalam S. Receptor tyrosine kinase structure and function in health and disease. AIMS BIOPHYSICS 2015. [DOI: 10.3934/biophy.2015.4.476] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
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50
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Haskins JW, Nguyen DX, Stern DF. Neuregulin 1-activated ERBB4 interacts with YAP to induce Hippo pathway target genes and promote cell migration. Sci Signal 2014; 7:ra116. [PMID: 25492965 DOI: 10.1126/scisignal.2005770] [Citation(s) in RCA: 118] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The receptor tyrosine kinase ERBB4, a member of the epidermal growth factor receptor (EGFR) family, is unusual in that ERBB4 can undergo intramembrane proteolysis, releasing a soluble intracellular domain (ICD) that modulates transcription in the nucleus. We found that ERBB4 activated the transcriptional coactivator YAP, which promotes organ and tissue growth and is inhibited by the Hippo tumor-suppressor pathway. Overexpressing ERBB4 in cultured mammary epithelial cells or adding the ERBB4 ligand neuregulin 1 (NRG1) to breast cancer cell cultures promoted the expression of genes regulated by YAP, such as CTGF. Knocking down YAP or ERBB4 prevented the induction of CTGF expression by NRG1, as did treating cells with the ERBB inhibitors lapatinib or erlotinib, which reduced ERBB4 cleavage. NRG1 stimulated YAP activity to an extent comparable to that of EGF (epidermal growth factor) or LPA (lysophosphatidic acid), known activators of YAP. NRG1 stimulated YAP-dependent cell migration in breast cancer cell lines. These observations connect the unusual nuclear function of a growth factor receptor with a mechanosensory pathway and suggest that NRG1-ERBB4-YAP signaling contributes to the aggressive behavior of tumor cells.
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Affiliation(s)
- Jonathan W Haskins
- Department of Pathology and Yale Cancer Center, Yale University School of Medicine, New Haven, CT 06510, USA
| | - Don X Nguyen
- Department of Pathology and Yale Cancer Center, Yale University School of Medicine, New Haven, CT 06510, USA
| | - David F Stern
- Department of Pathology and Yale Cancer Center, Yale University School of Medicine, New Haven, CT 06510, USA.
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