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Lin Z, Zhao Y, Li Q, Ci X, Ye X, Chen G, Tu Q, Feng W, Jiang P, Zhu S, Xue X, Saunders NA, Zhang L, Zhu X, Zhao KN. OUP accepted manuscript. Carcinogenesis 2022; 43:479-493. [PMID: 35134836 DOI: 10.1093/carcin/bgac010] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 01/19/2022] [Accepted: 02/02/2022] [Indexed: 11/13/2022] Open
Affiliation(s)
- Zhongmin Lin
- Department of Pathology, The First Affiliated Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, PR China
| | - Yu Zhao
- Department of Obstetrics and Gynaecology, The Second Affiliated Hospital and Yuyin Children Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, PR China
| | - Qijia Li
- Department of Obstetrics and Gynaecology, The Second Affiliated Hospital and Yuyin Children Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, PR China
- School of Basic Medical Science, Wenzhou Medical University, Wenzhou, Zhejiang, PR China
| | - Xingyuan Ci
- Department of Obstetrics and Gynaecology, The Second Affiliated Hospital and Yuyin Children Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, PR China
- School of Basic Medical Science, Wenzhou Medical University, Wenzhou, Zhejiang, PR China
| | - Xiaoxian Ye
- School of Basic Medical Science, Wenzhou Medical University, Wenzhou, Zhejiang, PR China
| | - Guorong Chen
- Department of Pathology, The First Affiliated Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, PR China
| | - Quanmei Tu
- School of Basic Medical Science, Wenzhou Medical University, Wenzhou, Zhejiang, PR China
| | - Weixu Feng
- School of Basic Medical Science, Wenzhou Medical University, Wenzhou, Zhejiang, PR China
| | - Pengfei Jiang
- School of Basic Medical Science, Wenzhou Medical University, Wenzhou, Zhejiang, PR China
| | - Shanli Zhu
- School of Basic Medical Science, Wenzhou Medical University, Wenzhou, Zhejiang, PR China
| | - Xiangyang Xue
- School of Basic Medical Science, Wenzhou Medical University, Wenzhou, Zhejiang, PR China
| | - Nicholas A Saunders
- Diamantina Institute for Cancer Immunology and Metabolic Medicine, The University of Queensland, TRI, Woolloongabba, Queensland, Australia
| | - Lifang Zhang
- School of Basic Medical Science, Wenzhou Medical University, Wenzhou, Zhejiang, PR China
| | - Xueqiong Zhu
- Department of Obstetrics and Gynaecology, The Second Affiliated Hospital and Yuyin Children Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, PR China
| | - Kong-Nan Zhao
- Department of Obstetrics and Gynaecology, The Second Affiliated Hospital and Yuyin Children Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, PR China
- School of Basic Medical Science, Wenzhou Medical University, Wenzhou, Zhejiang, PR China
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, Queensland, Australia
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Regulation of Endothelial Adherens Junctions by Tyrosine Phosphorylation. Mediators Inflamm 2015; 2015:272858. [PMID: 26556953 PMCID: PMC4628659 DOI: 10.1155/2015/272858] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2015] [Accepted: 08/16/2015] [Indexed: 12/14/2022] Open
Abstract
Endothelial cells form a semipermeable, regulated barrier that limits the passage of fluid, small molecules, and leukocytes between the bloodstream and the surrounding tissues. The adherens junction, a major mechanism of intercellular adhesion, is comprised of transmembrane cadherins forming homotypic interactions between adjacent cells and associated cytoplasmic catenins linking the cadherins to the cytoskeleton. Inflammatory conditions promote the disassembly of the adherens junction and a loss of intercellular adhesion, creating openings or gaps in the endothelium through which small molecules diffuse and leukocytes transmigrate. Tyrosine kinase signaling has emerged as a central regulator of the inflammatory response, partly through direct phosphorylation and dephosphorylation of the adherens junction components. This review discusses the findings that support and those that argue against a direct effect of cadherin and catenin phosphorylation in the disassembly of the adherens junction. Recent findings indicate a complex interaction between kinases, phosphatases, and the adherens junction components that allow a fine regulation of the endothelial permeability to small molecules, leukocyte migration, and barrier resealing.
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Cross talk between receptor guanylyl cyclase C and c-src tyrosine kinase regulates colon cancer cell cytostasis. Mol Cell Biol 2009; 29:5277-89. [PMID: 19620276 DOI: 10.1128/mcb.00001-09] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Increased activation of c-src seen in colorectal cancer is an indicator of a poor clinical prognosis, suggesting that identification of downstream effectors of c-src may lead to new avenues of therapy. Guanylyl cyclase C (GC-C) is a receptor for the gastrointestinal hormones guanylin and uroguanylin and the bacterial heat-stable enterotoxin. Though activation of GC-C by its ligands elevates intracellular cyclic GMP (cGMP) levels and inhibits cell proliferation, its persistent expression in colorectal carcinomas and occult metastases makes it a marker for malignancy. We show here that GC-C is a substrate for inhibitory phosphorylation by c-src, resulting in reduced ligand-mediated cGMP production. Consequently, active c-src in colonic cells can overcome GC-C-mediated control of the cell cycle. Furthermore, docking of the c-src SH2 domain to phosphorylated GC-C results in colocalization and further activation of c-src. We therefore propose a novel feed-forward mechanism of activation of c-src that is induced by cross talk between a receptor GC and a tyrosine kinase. Our findings have important implications in understanding the molecular mechanisms involved in the progression and treatment of colorectal cancer.
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McLachlan RW, Kraemer A, Helwani FM, Kovacs EM, Yap AS. E-cadherin adhesion activates c-Src signaling at cell-cell contacts. Mol Biol Cell 2007; 18:3214-23. [PMID: 17553930 PMCID: PMC1949350 DOI: 10.1091/mbc.e06-12-1154] [Citation(s) in RCA: 116] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Cadherin-based cell-cell contacts are prominent sites for phosphotyrosine signaling, being enriched in tyrosine-phosphorylated proteins and tyrosine kinases and phosphatases. The functional interplay between cadherin adhesion and tyrosine kinase signaling, however, is complex and incompletely understood. In this report we tested the hypothesis that cadherin adhesion activates c-Src signaling and sought to assess its impact on cadherin function. We identified c-Src as part of a cadherin-activated cell signaling pathway that is stimulated by ligation of the adhesion receptor. However, c-Src has a biphasic impact on cadherin function, exerting a positive supportive role at lower signal strengths, but inhibiting function at high signal strengths. Inhibiting c-Src under circumstances when it is activated by cadherin adhesion decreased several measures of cadherin function. This suggests that the cadherin-activated c-Src signaling pathway serves positively to support cadherin function. Finally, our data implicate PI3-kinase signaling as a target for cadherin-activated c-Src signaling that contributes to its positive impact on cadherin function. We conclude that E-cadherin signaling is an important activator of c-Src at cell-cell contacts, providing a key input into a signaling pathway where quantitative changes in signal strength may result in qualitative differences in functional outcome.
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Affiliation(s)
- Robert W. McLachlan
- *Division of Molecular Cell Biology, Institute for Molecular Bioscience, and
| | - Astrid Kraemer
- *Division of Molecular Cell Biology, Institute for Molecular Bioscience, and
| | - Falak M. Helwani
- *Division of Molecular Cell Biology, Institute for Molecular Bioscience, and
| | - Eva M. Kovacs
- School for Biomedical Science, The University of Queensland, St. Lucia, Brisbane, Queensland, Australia 4072
| | - Alpha S. Yap
- *Division of Molecular Cell Biology, Institute for Molecular Bioscience, and
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McLachlan RW, Yap AS. Not so simple: the complexity of phosphotyrosine signaling at cadherin adhesive contacts. J Mol Med (Berl) 2007; 85:545-54. [PMID: 17429596 DOI: 10.1007/s00109-007-0198-x] [Citation(s) in RCA: 67] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2007] [Revised: 03/19/2007] [Accepted: 03/21/2007] [Indexed: 12/18/2022]
Abstract
Cadherin cell-cell adhesion critically determines tissue organization and integrity in many organs of the body. Cadherin function influences patterning and morphogenesis while cadherin dysfunction contributes to disease, notably tumor invasion and metastasis. Cell signaling events are intimately linked with cadherin function; it is increasingly apparent that not only do cellular signals regulate cadherin function, but cadherins can also, in turn, modulate cell signaling itself. In this review, we discuss the complex interrelationship between phosphotyrosine-based cell signaling and cadherin adhesion. We focus on the interplay of events that occur at the cell surface and address three issues: the diverse mechanisms that activate phosphotyrosine signaling at cadherin cell-cell contacts, the functional impact of such signaling for cadherin adhesion, and the emerging capacity for cadherins to regulate growth factor signaling.
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Affiliation(s)
- Robert W McLachlan
- Division of Molecular Cell Biology, Institute for Molecular Bioscience, The University of Queensland, St. Lucia, Brisbane, Queensland, 4072, Australia
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Vojtechová M, Senigl F, Sloncová E, Tuhácková Z. Regulation of c-Src activity by the expression of wild-type v-Src and its kinase-dead double Y416F-K295N mutant. Arch Biochem Biophys 2006; 455:136-43. [PMID: 17056000 DOI: 10.1016/j.abb.2006.09.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2006] [Revised: 09/13/2006] [Accepted: 09/13/2006] [Indexed: 10/24/2022]
Abstract
Active, wild-type v-Src and its kinase-dead double Y416F-K295N mutant were expressed in hamster fibroblasts. Expression of the active v-Src induced activation of endogenous c-Src and increased general protein-tyrosine phosphorylation in the infected cells. Expression of the kinase-dead mutant induced hypophosphorylation of Tyr416 of the endogenous c-Src. The inactivation of c-Src was reversible, as confirmed by in vitro kinase activity of c-Src immunoprecipitated from the kinase-dead v-Src-expressing cells. Both activation and inactivation of c-Src may be explained by direct interaction of the v-Src and c-Src that may either facilitate transphosphorylation of the regulatory Tyr416 in the activation loop, or prevent it by formation of transient dead-end complexes of the Y416F-K295N mutant with c-Src. The interaction was also indicated by co-localization of v- and c-Src proteins in immunofluorescent images of the infected cells. These results suggest that dimerization of Src plays an important role in the regulation of Src tyrosine kinase activity.
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Affiliation(s)
- Martina Vojtechová
- Institute of Molecular Genetics, Academy of Sciences of the Czech Republic, Flemingovo n. 2, 166 37 Praha 6, Czech Republic.
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Yamaoka K, Imajoh-Ohmi S, Fukuda H, Akita Y, Kurosawa K, Yamamoto Y, Sanai Y. Identification of phosphoproteins associated with maintenance of transformed state in temperature-sensitive Rous sarcoma-virus infected cells by proteomic analysis. Biochem Biophys Res Commun 2006; 345:1240-6. [PMID: 16716253 DOI: 10.1016/j.bbrc.2006.04.183] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2006] [Accepted: 04/26/2006] [Indexed: 11/28/2022]
Abstract
To identify phosphotyrosine-containing proteins essential for maintaining the transformed state, we studied the tyrosine phosphorylation profile of temperature-sensitive mutant of Rous sarcoma virus, tsNY68, infected cells (68N7). Shifting the temperature from 39 degrees C (nonpermissive) to 32 degrees C (permissive) markedly increased the expression of phosphotyrosine-containing cell membrane proteins of approximately 40kDa, as assessed by SDS-PAGE. Membrane and nuclear proteins were separated by two-dimensional gel electrophoresis and immunoblotted with anti-phosphotyrosine antibody. Proteins showing temperature-dependent changes in phosphorylation profile were subjected to in-gel digestion with trypsin and analyzed by mass spectrometry. Five proteins were identified: heterogeneous nuclear ribonucleoprotein (hnRNP) A3, hnRNP A2, annexin II, phosphoglycerate mutase 1, and triosephosphate isomerase 1. hnRNP A3 was phosphorylated at serine residues and had both serine and tyrosine phosphorylated sites. These results suggest an important complementary role for proteomics in identifying molecular abnormalities associated with tumor progression that may be attractive candidates for tumor diagnosis.
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Affiliation(s)
- Kazuko Yamaoka
- Laboratory of Glycobiology, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan.
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Che Q, Carmines PK. Src family kinase involvement in rat preglomerular microvascular contractile and [Ca2+]i responses to ANG II. Am J Physiol Renal Physiol 2004; 288:F658-64. [PMID: 15572518 PMCID: PMC2570959 DOI: 10.1152/ajprenal.00392.2004] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Experiments were performed to investigate the potential role of Src family kinase(s) in the rat afferent arteriolar contractile response to ANG II. The in vitro blood-perfused juxtamedullary nephron technique was employed to monitor afferent arteriolar lumen diameter responses to 1-100 nM ANG II before and during Src family kinase inhibition (10 microM PP2). PP2 did not alter baseline diameter but attenuated ANG II-induced contractile responses by 33 +/- 6%. An inactive analog of PP2 (PP3) had no effect on ANG II-induced afferent arteriolar contraction. The effect of Src kinase inhibition on ANG II-induced intracellular free Ca(2+) concentration ([Ca(2+)](i)) responses was probed in fura 2-loaded preglomerular microvascular smooth muscle cells (PVSMCs) obtained from explants and studied after 3-5 days in culture. In untreated PVSMCs, ANG II evoked peak (Delta = 293 +/- 66 nM) and plateau (Delta = 23 +/- 8 nM) increases in [Ca(2+)](i). In PVSMCs pretreated with PP2, baseline [Ca(2+)](i) was unaltered, but both the peak (Delta = 140 +/- 22 nM) and plateau (Delta = 3 +/- 2 nM) phases of the ANG II response were significantly reduced compared with untreated cells. PP3 did not alter [Ca(2+)](i) responses to ANG II. Immunoprecipitation and Western blot analysis confirmed that 100 nM ANG II increased phosphorylation of c-Src (at Y(416)) in PVSMCs. The phosphorylation response was maximal 1 min after ANG II exposure and was prevented by PP2. We conclude that the preglomerular vasoconstriction evoked by ANG II involves rapid c-Src activation with subsequent effects that contribute to the [Ca(2+)](i) response to the peptide.
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Affiliation(s)
- Qi Che
- Dept. of Cellular and Integrative Physiology, Univ. of Nebraska College of Medicine, 985850 Nebraska Medical Ctr., Omaha, NE 68198-5850, USA
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