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Novel Functions of Integrins as Receptors of CD154: Their Role in Inflammation and Apoptosis. Cells 2022; 11:cells11111747. [PMID: 35681441 PMCID: PMC9179867 DOI: 10.3390/cells11111747] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Revised: 05/18/2022] [Accepted: 05/24/2022] [Indexed: 12/16/2022] Open
Abstract
CD154, an inflammatory mediator also known as CD40 ligand, has been identified as a novel binding partner for some members of the integrin family. The αIIbβ3, specifically expressed on platelets, was the first integrin to be described as a receptor for CD154 after CD40. Its interaction with soluble CD154 (sCD154) highly contributes to thrombus formation and stability. Identifying αIIbβ3 opened the door for investigating other integrins as partners of CD154. The αMβ2 expressed on myeloid cells was shown capable of binding CD154 and contributing as such to cell activation, adhesion, and release of proinflammatory mediators. In parallel, α5β1 communicates with sCD154, inducing pro-inflammatory responses. Additional pathogenic effects involving apoptosis-preventing functions were exhibited by the CD154–α5β1 dyad in T cells, conferring a role for such interaction in the survival of malignant cells, as well as the persistence of autoreactive T cells. More recently, CD154 receptors integrated two new integrin members, αvβ3 and α4β1, with little known as to their biological significance in this context. This article provides an overview of the novel role of integrins as receptors of CD154 and as critical players in pro-inflammatory and apoptotic responses.
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Roblek M, Bicher J, van Gogh M, György A, Seeböck R, Szulc B, Damme M, Olczak M, Borsig L, Siekhaus DE. The Solute Carrier MFSD1 Decreases the Activation Status of β1 Integrin and Thus Tumor Metastasis. Front Oncol 2022; 12:777634. [PMID: 35211397 PMCID: PMC8861502 DOI: 10.3389/fonc.2022.777634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Accepted: 01/13/2022] [Indexed: 11/17/2022] Open
Abstract
Solute carriers are increasingly recognized as participating in a plethora of pathologies, including cancer. We describe here the involvement of the orphan solute carrier Major Facilitator Superfamily Domain-containing protein 1 (MFSD1) in the regulation of tumor cell migration. Loss of MFSD1 enabled higher levels of metastasis in experimental and spontaneous metastasis mouse models. We identified an increased migratory potential in MFSD1−/− tumor cells which was mediated by increased focal adhesion turnover, reduced stability of mature inactive β1 integrin, and the resulting increased integrin activation index. We show that MFSD1 promoted recycling to the cell surface of endocytosed inactive β1 integrin and thereby protected β1 integrin from proteolytic degradation; this led to dampening of the integrin activation index. Furthermore, downregulation of MFSD1 expression was observed during the early steps of tumorigenesis, and higher MFSD1 expression levels correlate with a better cancer patient prognosis. In sum, we describe a requirement for endolysosomal MFSD1 in efficient β1 integrin recycling to suppress tumor cell dissemination.
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Affiliation(s)
- Marko Roblek
- Institute of Science and Technology Austria, Klosterneuburg, Austria
| | - Julia Bicher
- Institute of Science and Technology Austria, Klosterneuburg, Austria
| | - Merel van Gogh
- Institute of Physiology, University of Zurich, Zurich, Switzerland
| | - Attila György
- Institute of Science and Technology Austria, Klosterneuburg, Austria
| | - Rita Seeböck
- Institute of Clinical Pathology, University Hospital St. Polten, St. Polten, Austria
| | - Bozena Szulc
- Laboratory of Biochemistry, Faculty of Biotechnology, University of Wroclaw, Wroclaw, Poland
| | - Markus Damme
- Institute of Biochemistry, University of Kiel, Kiel, Germany
| | - Mariusz Olczak
- Laboratory of Biochemistry, Faculty of Biotechnology, University of Wroclaw, Wroclaw, Poland
| | - Lubor Borsig
- Institute of Physiology, University of Zurich, Zurich, Switzerland
| | - Daria E Siekhaus
- Institute of Science and Technology Austria, Klosterneuburg, Austria
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3
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Meenakshi Sundaram DN, Kucharski C, Bahadur KC R, Tarman IO, Uludağ H. Polymeric siRNA delivery targeting integrin-β1 could reduce interactions of leukemic cells with bone marrow microenvironment. BIOMATERIALS AND BIOSYSTEMS 2021; 3:100021. [PMID: 36824309 PMCID: PMC9934419 DOI: 10.1016/j.bbiosy.2021.100021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 07/08/2021] [Accepted: 07/16/2021] [Indexed: 11/17/2022] Open
Abstract
Uncontrolled proliferation of the myeloid cells due to BCR-ABL fusion has been successfully treated with tyrosine kinase inhibitors (TKIs), which improved the survival rate of Chronic Myeloid Leukemia (CML) patients. However, due to interactions of CML cells with bone marrow microenvironment, sub-populations of CML cells could become resistant to TKI treatment. Since integrins are major cell surface molecules involved in such interactions, the potential of silencing integrin-β1 on CML cell line K562 cells was explored using short interfering RNA (siRNA) delivered through lipid-modified polyethyleneimine (PEI) polymers. Reduction of integrin-β1 in K562 cells decreased cell adhesion towards human bone marrow stromal cells and to fibronectin, a major extracellular matrix protein for which integrin-β1 is a primary receptor. Interaction of K562 cells with fibronectin decreased the sensitivity of the cells to BCR-ABL siRNA treatment, but a combinational treatment with integrin-β1 and BCR-ABL siRNAs significantly reduced colony forming ability of the cells. Moreover, integrin-β1 silencing enhanced the detachment of K562 cells from hBMSC samples (2 out of 4 samples), which could make them more susceptible to TKIs. Therefore, the polymeric-siRNA delivery targeting integrin-β1 could be beneficial to reduce interactions with bone marrow microenvironment, aiding in the response of CML cells to therapeutic treatment.
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Affiliation(s)
| | - Cezary Kucharski
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB, Canada
| | - Remant Bahadur KC
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB, Canada
| | | | - Hasan Uludağ
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, AB, Canada,Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB, Canada,Department of Biomedical Engineering, University of Alberta, Edmonton, AB, Canada,Corresponding author at: Department of Chemical and Materials Engineering, 2-021 RTF, University of Alberta, Edmonton, Alberta, T6G 2G6, Canada.
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Mori K, Higurashi M, Ishikawa F, Shibanuma M. Rac1-mediated sustained β4 integrin level develops reattachment ability of breast cancer cells after anchorage loss. Cancer Sci 2021; 112:3205-3217. [PMID: 34036687 PMCID: PMC8353950 DOI: 10.1111/cas.14985] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 05/16/2021] [Accepted: 05/19/2021] [Indexed: 12/16/2022] Open
Abstract
Previously, we reported that non-apoptotic cell death was induced in non-malignant mammary epithelial cells (HMECs) upon loss of anchorage during 48 h incubation in suspension. In this study, we examined HMECs in suspension at an earlier time point and found that most of them lost attachment ability to substrata when replated, although >80% were alive. This suggested that HMECs lost reattachment ability (RA) prior to cell death upon detachment. Concomitant with the loss of RA, a decrease in the levels of β1 and β4 integrin was observed. In sharp contrast, breast cancer cells retained integrin levels, reattached to substrata, and formed colonies after exposure to anchorage loss as efficiently as those maintained under adherent conditions. Such RA of cancer cells is essential for the metastatic process, especially for establishing adhesion contact with ECM in the secondary organ after systemic circulation. Further analysis suggested that sustained levels of β4 integrin, which was mediated by Rac1, was critical for RA after anchorage loss and lung metastasis of breast cancer cells. In the cancer cells, persistent Rac1 activity enhanced escape of β4 integrin from lysosomal degradation depending on actin-related protein 2/3 and TBC1D2, a GTPase-activating protein of Rab7 GTPase. Notably, simultaneous high expression of ITGB4 and RAC1 was associated with poor prognosis in patients with breast cancer. Therefore, β4 integrin and Rac1 are attractive therapeutic targets to eliminate RA in cancer cells, thereby preventing the initial step of colonization at the secondary organ during metastasis.
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Affiliation(s)
- Kazunori Mori
- Division of Cancer Cell Biology, Department of Pharmaceutical Sciences, Showa University School of Pharmacy, Tokyo, Japan
| | - Masato Higurashi
- Division of Cancer Cell Biology, Department of Pharmaceutical Sciences, Showa University School of Pharmacy, Tokyo, Japan
| | - Fumihiro Ishikawa
- Division of Cancer Cell Biology, Department of Pharmaceutical Sciences, Showa University School of Pharmacy, Tokyo, Japan
| | - Motoko Shibanuma
- Division of Cancer Cell Biology, Department of Pharmaceutical Sciences, Showa University School of Pharmacy, Tokyo, Japan
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Grafinger OR, Gorshtein G, Stirling T, Geddes-McAlister J, Coppolino MG. Inhibition of β1 integrin induces its association with MT1-MMP and decreases MT1-MMP internalization and cellular invasiveness. Cell Signal 2021; 83:109984. [PMID: 33744418 DOI: 10.1016/j.cellsig.2021.109984] [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] [Received: 11/24/2020] [Revised: 03/13/2021] [Accepted: 03/15/2021] [Indexed: 11/17/2022]
Abstract
Integrin signaling plays a fundamental role in the establishment of focal adhesions and the subsequent formation of invadopodia in malignant cancer cells. Invadopodia facilitate localized adhesion and degradation of the extracellular matrix (ECM), which promote tumour cell invasion and metastasis. Degradation of ECM components is often driven by membrane type-1 matrix metalloproteinase (MT1-MMP), and we have recently shown that regulation of enzyme internalization is dependent on signaling downstream of β1 integrin. Phosphorylation of the cytoplasmic tail of MT1-MMP is required for its internalization and delivery to Rab5-marked early endosomes, where it is then able to be recycled to new sites of invadopodia formation and promote invasion. Here we found that inhibition of β1 integrin, using the antibody AIIB2, inhibited the internalization and recycling of MT1-MMP that is necessary to support long-term cellular invasion. MT1-MMP and β1 integrin were sequestered at the cell surface when β1-integrin was inhibited, and their association under these conditions was detected using immunoprecipitation and mass spectrometry analyses. Sequestration of β1 integrin and MT1-MMP at the cell surface resulted in the formation of large invadopodia and local ECM degradation; however, the impaired internalization and recycling of MT1-MMP and β1 integrin ultimately led to a loss of invasive behaviour.
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Affiliation(s)
- Olivia R Grafinger
- Department of Molecular and Cellular Biology, University of Guelph, ON N1G 2W1, Canada
| | - Genya Gorshtein
- Department of Molecular and Cellular Biology, University of Guelph, ON N1G 2W1, Canada
| | - Tyler Stirling
- Department of Molecular and Cellular Biology, University of Guelph, ON N1G 2W1, Canada
| | | | - Marc G Coppolino
- Department of Molecular and Cellular Biology, University of Guelph, ON N1G 2W1, Canada.
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Zhang W, Teske N, Samadi M, Sarem M, Shastri VP. Unraveling the role of β1 integrin isoforms in cRGD-mediated uptake of nanoparticles bearing hydrophilized alkyne moieties in epithelial and endothelial cells. Acta Biomater 2020; 116:344-355. [PMID: 32871280 DOI: 10.1016/j.actbio.2020.08.038] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 08/21/2020] [Accepted: 08/25/2020] [Indexed: 02/07/2023]
Abstract
The uptake and trafficking of NPs is impacted by several attributes such as size, shape, surface charge and importantly by surface ligands that can interact with the cell plasma membrane. We envision that NPs which can be readily modified in aqueous environments will be key to engineering patient-specific nanotherapeutics. Towards such systems that can be functionalized "on demand" in aqueous environments, an α-ω epoxy ester monomer that bears an alkyne group at the end of an oligoethylene glycol moiety was designed and synthesized. Copolymerization of this monomer with ε-caprolactone yielded polymers that present hydrophilized alkyne groups along the backbone. This enabled the direct modification of the surface of NPs, as suspensions in aqueous phase, with cell interaction peptides such cyclic-arginine-glycine-aspartic acid (cRGD) using the "click reaction". Uptake of cRGD modified NPs (cRGD-NPs) in human endothelial and tumor epithelial cells revealed that cRGD surprisingly diminished uptake in both tumor epithelial and microvascular endothelial cells by 40-50 percent in comparison to unmodified particles. Probing the mechanism of uptake revealed that the expression pattern of two isoforms of β1 integrin impacted the uptake of cRGD-NPs differently. While the expression of high molecular weight 140 kDa form of the β1 integrin enhanced NP uptake, the expression of low molecular 120 kDa form had an inhibitory effect. Furthermore, although, the expression of β3 integrin was enhanced in endothelial cells and breast cancer epithelial cells, no correlation between β3 integrin and NP uptake was observed. Additionally, in presence of clathrin and caveolae pathway inhibitors the uptake of cRGD-NPS was in general diminished with a 25-75% decrease in presence of Filipin, a caveolae inhibitor; suggesting a role for lipid rafts in the β1 integrin-mediated uptake of cRGD-NP NPs. In sum, the polymer system described can be readily adapted to engineer other targeting peptide-based nanotherapeutics, especially for the delivery across difficult penetrate biological barriers such as the blood brain barrier. The main findings of this study have significant implication for the development of integrin targeted nanotherapeutics for anti-tumor therapy.
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Affiliation(s)
- Weihai Zhang
- Institute for Macromolecular Chemistry, University of Freiburg, 79104 Freiburg, Germany
| | - Nele Teske
- Institute for Macromolecular Chemistry, University of Freiburg, 79104 Freiburg, Germany
| | - Mariam Samadi
- Institute for Macromolecular Chemistry, University of Freiburg, 79104 Freiburg, Germany
| | - Melika Sarem
- Institute for Macromolecular Chemistry, University of Freiburg, 79104 Freiburg, Germany; BIOSS Centre for Biological Signalling Studies, University of Freiburg, 79104 Freiburg, Germany
| | - V Prasad Shastri
- Institute for Macromolecular Chemistry, University of Freiburg, 79104 Freiburg, Germany; BIOSS Centre for Biological Signalling Studies, University of Freiburg, 79104 Freiburg, Germany.
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Wang K, Zhang H, He Y, Jiang Q, Tanaka Y, Park IH, Pober JS, Min W, Zhou HJ. Mural Cell-Specific Deletion of Cerebral Cavernous Malformation 3 in the Brain Induces Cerebral Cavernous Malformations. Arterioscler Thromb Vasc Biol 2020; 40:2171-2186. [PMID: 32640906 DOI: 10.1161/atvbaha.120.314586] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVE Cerebral cavernous malformations (CCM), consisting of dilated capillary channels formed by a single layer of endothelial cells lacking surrounding mural cells. It is unclear why CCM lesions are primarily confined to brain vasculature, although the 3 CCM-associated genes (CCM1, CCM2, and CCM3) are ubiquitously expressed in all tissues. We aimed to determine the role of CCM gene in brain mural cell in CCM pathogenesis. Approach and Results: SM22α-Cre was used to drive a specific deletion of Ccm3 in mural cells, including pericytes and smooth muscle cells (Ccm3smKO). Ccm3smKO mice developed CCM lesions in the brain with onset at neonatal stages. One-third of Ccm3smKO mice survived upto 6 weeks of age, exhibiting seizures, and severe brain hemorrhage. The early CCM lesions in Ccm3smKO neonates were loosely wrapped by mural cells, and adult Ccm3smKO mice had clustered and enlarged capillary channels (caverns) formed by a single layer of endothelium lacking mural cell coverage. Importantly, CCM lesions throughout the entire brain in Ccm3smKO mice, which more accurately mimicked human disease than the current endothelial cell-specific CCM3 deletion models. Mechanistically, CCM3 loss in brain pericytes dramatically increased paxillin stability and focal adhesion formation, enhancing ITG-β1 (integrin β1) activity and extracellular matrix adhesion but reducing cell migration and endothelial cell-pericyte associations. Moreover, CCM3-wild type, but not a paxillin-binding defective mutant, rescued the phenotypes in CCM3-deficient pericytes. CONCLUSIONS Our data demonstrate for the first time that deletion of a CCM gene in the brain mural cell induces CCM pathogenesis.
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Affiliation(s)
- Kang Wang
- From the Interdepartmental Program in Vascular Biology and Therapeutics, Department of Pathology (K.W., H.Z., Y.H., Q.J., J.S.P., W.M., H.J.Z.), Yale University School of Medicine, New Haven, CT
| | - Haifeng Zhang
- From the Interdepartmental Program in Vascular Biology and Therapeutics, Department of Pathology (K.W., H.Z., Y.H., Q.J., J.S.P., W.M., H.J.Z.), Yale University School of Medicine, New Haven, CT
| | - Yun He
- From the Interdepartmental Program in Vascular Biology and Therapeutics, Department of Pathology (K.W., H.Z., Y.H., Q.J., J.S.P., W.M., H.J.Z.), Yale University School of Medicine, New Haven, CT
| | - Quan Jiang
- From the Interdepartmental Program in Vascular Biology and Therapeutics, Department of Pathology (K.W., H.Z., Y.H., Q.J., J.S.P., W.M., H.J.Z.), Yale University School of Medicine, New Haven, CT
| | - Yoshiaki Tanaka
- Yale Stem Cell Center, Department of Genetics (Y.T., I.-H.P.), Yale University School of Medicine, New Haven, CT
| | - In-Hyun Park
- Yale Stem Cell Center, Department of Genetics (Y.T., I.-H.P.), Yale University School of Medicine, New Haven, CT
| | - Jordan S Pober
- From the Interdepartmental Program in Vascular Biology and Therapeutics, Department of Pathology (K.W., H.Z., Y.H., Q.J., J.S.P., W.M., H.J.Z.), Yale University School of Medicine, New Haven, CT
| | - Wang Min
- From the Interdepartmental Program in Vascular Biology and Therapeutics, Department of Pathology (K.W., H.Z., Y.H., Q.J., J.S.P., W.M., H.J.Z.), Yale University School of Medicine, New Haven, CT
| | - Huanjiao Jenny Zhou
- From the Interdepartmental Program in Vascular Biology and Therapeutics, Department of Pathology (K.W., H.Z., Y.H., Q.J., J.S.P., W.M., H.J.Z.), Yale University School of Medicine, New Haven, CT
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Dai Q, Morita Y, Huang Y, Liaw PC, Wu J, Khang J, Islam D, Yu K, Li Y, Zhang H. Modulation of Human Neutrophil Peptides on P. aeruginosa Killing, Epithelial Cell Inflammation and Mesenchymal Stromal Cell Secretome Profiles. J Inflamm Res 2019; 12:335-343. [PMID: 31908518 PMCID: PMC6927223 DOI: 10.2147/jir.s219276] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Accepted: 11/27/2019] [Indexed: 11/23/2022] Open
Abstract
Objective Neutrophil infiltration and release of the abundant human neutrophil peptides (HNP) are a common clinical feature in critically ill patients. We tested a hypothesis that different cell types respond to HNP differently in lung microenvironment that may influence the host responses. Methods Plasma concentrations of HNP were measured in healthy volunteers and patients with sepsis. Cells including the bacteria P. aeruginosa, human lung epithelial cells and mesenchymal stromal cells (MSCs) were exposed to various concentrations of HNP. Bacterial killing, epithelial cell inflammation, MSC adhesion and behaviours were examined after HNP stimulation. Results Incubation of P. aeruginosa or stimulation of human lung epithelial cells with HNP resulted in bacterial killing or IL-8 production at a dose of 50 μg/mL, while MSC adhesion and alternations of secretome profiles took place after HNP stimulation at a dose of 10 μg/mL. The secretome profile changes were characterized by increased release of the IL-6 family members such as C-reactive protein (CRP), leukemia inhibitory factor (LIF) and interleukin (IL-11), and first apoptosis signal (FAS) and platelet-derived growth factor-AA as compared to a vehicle control group. Conclusion Stimulation of MSCs with HNP resulted in changes of secretome profiles at 5-fold lower concentration than that required for bacterial killing and lung epithelial inflammation. This undisclosed risk factor of HNP in lung environment should be taken into consideration when MSCs are applied as cell therapy in inflammatory lung diseases.
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Affiliation(s)
- Qingqing Dai
- Department of Critical Care Medicine, The 2nd Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, People's Republic of China
| | - Yasumasa Morita
- Department of Emergency and Critical Care Medicine, Chiba Aoba Municipal Hospital, Chiba, Japan
| | - Yongbo Huang
- The State Key Laboratory of Respiratory Disease, and The 1st Affiliated Hospital of Guangzhou Medical University, Guangzhou, People's Republic of China
| | - Patricia C Liaw
- Department of Medicine, McMaster University, Hamilton, Canada
| | - Jianfeng Wu
- Department of Critical Care Medicine, The 1st Affiliated Hospital of Sun Yat-Sen University, Guangzhou, People's Republic of China
| | - Julie Khang
- Keenan Research Center for Biomedical Science of Unity Health Toronto, Toronto, Canada
| | - Diana Islam
- Keenan Research Center for Biomedical Science of Unity Health Toronto, Toronto, Canada
| | - Kaijiang Yu
- Department of Critical Care Medicine, The 1st Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, People's Republic of China
| | - Yimin Li
- The State Key Laboratory of Respiratory Disease, and The 1st Affiliated Hospital of Guangzhou Medical University, Guangzhou, People's Republic of China
| | - Haibo Zhang
- The State Key Laboratory of Respiratory Disease, and The 1st Affiliated Hospital of Guangzhou Medical University, Guangzhou, People's Republic of China.,Interdepartmental Division of Critical Care Medicine, University of Toronto, Ontario, Canada.,Departments of Anesthesia, University of Toronto, Ontario, Canada.,Physiology, University of Toronto, Ontario, Canada
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Csoboz B, Gombos I, Tatrai E, Tovari J, Kiss AL, Horvath I, Vigh L. Chemotherapy induced PRL3 expression promotes cancer growth via plasma membrane remodeling and specific alterations of caveolae-associated signaling. Cell Commun Signal 2018; 16:51. [PMID: 30157875 PMCID: PMC6116440 DOI: 10.1186/s12964-018-0264-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Accepted: 08/16/2018] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND The outcome of cancer therapy is greatly defined by the ability of a tumor cell to evade treatment and re-establish its bulk mass after medical interventions. Consequently, there is an urgent need for the characterization of molecules affecting tumor reoccurrence. The phosphatase of regenerating liver 3 (PRL3) protein was recently emerged among the targets that could affect such a phenomenon. METHODS The expression induction of PRL3 in melanoma cells treated with chemotherapeutic agents was assessed by western blotting. The effect of PRL3 expression on cancer growth was investigated both in vitro and in vivo. The association of PRL3 with the caveolae structures of the plasma membrane was analyzed by detergent free raft purification. The effect of PRL3 expression on the membrane organization was assayed by electron microscopy and by membrane biophysical measurements. Purification of the plasma membrane fraction and co-immunoprecipitation were used to evaluate the altered protein composition of the plasma membrane upon PRL3 expression. RESULTS Here, we identified PRL3 as a genotoxic stress-induced oncogene whose expression is significantly increased by the presence of classical antitumor therapeutics. Furthermore, we successfully connected the presence of this oncogene with increased tumor growth, which implies that tumor cells can utilize PRL3 effects as a survival strategy. We further demonstrated the molecular mechanism that is connected with the pro-growth action of PRL3, which is closely associated with its localization to the caveolae-type lipid raft compartment of the plasma membrane. In our study, PRL3 was associated with distinct changes in the plasma membrane structure and in the caveolar proteome, such as the dephosphorylation of integrin β1 at Thr788/Thr789 and the increased partitioning of Rac1 to the plasma membrane. These alterations at the plasma membrane were further associated with the elevation of cyclin D1 in the nucleus. CONCLUSIONS This study identifies PRL3 as an oncogene upregulated in cancer cells upon exposure to anticancer therapeutics. Furthermore, this work contributes to the existing knowledge on PRL3 function by characterizing its association with the caveolae-like domains of the plasma membrane and their resident proteins.
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Affiliation(s)
- Balint Csoboz
- Institute of Biochemistry, Biological Research Centre of the Hungarian Academy of Sciences, Temesvari Krt. 62, Szeged, 6726, Hungary.
| | - Imre Gombos
- Institute of Biochemistry, Biological Research Centre of the Hungarian Academy of Sciences, Temesvari Krt. 62, Szeged, 6726, Hungary
| | - Eniko Tatrai
- Department of Experimental Pharmacology, National Institute of Oncology, Budapest, 1094, Hungary
| | - Jozsef Tovari
- Department of Experimental Pharmacology, National Institute of Oncology, Budapest, 1094, Hungary
| | - Anna L Kiss
- Department of Anatomy, Histology and Embryology, Semmelweis University Budapest, Budapest, 1094, Hungary
| | - Ibolya Horvath
- Institute of Biochemistry, Biological Research Centre of the Hungarian Academy of Sciences, Temesvari Krt. 62, Szeged, 6726, Hungary
| | - Laszlo Vigh
- Institute of Biochemistry, Biological Research Centre of the Hungarian Academy of Sciences, Temesvari Krt. 62, Szeged, 6726, Hungary.
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10
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Bojic-Trbojevic Ž, Jovanovic Krivokuca M, Stefanoska I, Kolundžic N, Vilotic A, Kadoya T, Vicovac L. Integrin β1 is bound to galectin-1 in human trophoblast. J Biochem 2018; 163:39-50. [PMID: 28992109 DOI: 10.1093/jb/mvx061] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Accepted: 07/24/2017] [Indexed: 01/21/2023] Open
Abstract
Interaction of sugar binding proteins-galectins, with glycoconjugates is considered relevant for various reproductive processes. Galectin-1 (gal-1) is a molecule involved in trophoblast cell invasion, which is accomplished through interaction with cell surface and/or extracellular matrix glycoproteins. A possibility of interaction of endogenous gal-1 and trophoblast β1 integrins, both previously shown relevant for trophoblast invasion, was investigated. Confocal microscopy showed overlap in gal-1 and β1 integrin localization at the plasma membrane of isolated cytotrophoblast, HTR-8/SVneo extravillous trophoblast cell line and JAr choriocarcinoma cells. Immunoprecipitation confirmed an interaction of gal-1 with integrin β1, but not with α1 or α5 integrin subunits. Nondenaturing electrophoresis and subcellular fractionation suggested association of gal-1 with β1 integrin in intracellular and plasma membrane compartments of HTR-8/SVneo cells. Gal-1/β1 integrin complex was sensitive to chemical and enzyme treatments, indicating carbohydrate dependent interaction. Down-regulation of gal-1 by siRNA, however, had no effect on level or distribution of β1 integrin, as determined by qPCR and flow cytometry. These results suggest complex lectin type interaction of gal-1 with β1 integrin at the trophoblast cell membrane, which could influence trophoblast cell adhesion, migration and invasion.
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Affiliation(s)
- Žanka Bojic-Trbojevic
- Laboratory for Biology of Reproduction, Institute for the Application of Nuclear Energy, INEP, Banatska 31b, University of Belgrade, Belgrade, Serbia
| | - Milica Jovanovic Krivokuca
- Laboratory for Biology of Reproduction, Institute for the Application of Nuclear Energy, INEP, Banatska 31b, University of Belgrade, Belgrade, Serbia
| | - Ivana Stefanoska
- Laboratory for Biology of Reproduction, Institute for the Application of Nuclear Energy, INEP, Banatska 31b, University of Belgrade, Belgrade, Serbia
| | - Nikola Kolundžic
- Laboratory for Biology of Reproduction, Institute for the Application of Nuclear Energy, INEP, Banatska 31b, University of Belgrade, Belgrade, Serbia
| | - Aleksandra Vilotic
- Laboratory for Biology of Reproduction, Institute for the Application of Nuclear Energy, INEP, Banatska 31b, University of Belgrade, Belgrade, Serbia
| | - Toshihiko Kadoya
- Department of Biotechnology, Maebashi Institute of Technology, Maebashi, Gunma 371-0816, Japan
| | - Ljiljana Vicovac
- Laboratory for Biology of Reproduction, Institute for the Application of Nuclear Energy, INEP, Banatska 31b, University of Belgrade, Belgrade, Serbia
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11
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Lin MC, Chen SY, Tsai HM, He PL, Lin YC, Herschman H, Li HJ. PGE 2 /EP 4 Signaling Controls the Transfer of the Mammary Stem Cell State by Lipid Rafts in Extracellular Vesicles. Stem Cells 2016; 35:425-444. [PMID: 27506158 DOI: 10.1002/stem.2476] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Revised: 07/05/2016] [Accepted: 07/25/2016] [Indexed: 01/09/2023]
Abstract
Prostaglandin E2 (PGE2 )-initiated signaling contributes to stem cell homeostasis and regeneration. However, it is unclear how PGE2 signaling controls cell stemness. This study identifies a previously unknown mechanism by which PGE2 /prostaglandin E receptor 4 (EP4 ) signaling regulates multiple signaling pathways (e.g., PI3K/Akt signaling, TGFβ signaling, Wnt signaling, EGFR signaling) which maintain the basal mammary stem cell phenotype. A shift of basal mammary epithelial stem cells (MaSCs) from a mesenchymal/stem cell state to a non-basal-MaSC state occurs in response to prostaglandin E receptor 4 (EP4 ) antagonism. EP4 antagonists elicit release of signaling components, by controlling their trafficking into extracellular vesicles/exosomes in a lipid raft/caveolae-dependent manner. Consequently, EP4 antagonism indirectly inactivates, through induced extracellular vesicle/exosome release, pathways required for mammary epithelial stem cell homeostasis, e.g. canonical/noncanonical Wnt, TGFβ and PI3K/Akt pathways. EP4 antagonism causes signaling receptors and signaling components to shift from non-lipid raft fractions to lipid raft fractions, and to then be released in EP4 antagonist-induced extracellular vesicles/exosomes, resulting in the loss of the stem cell state by mammary epithelial stem cells. In contrast, luminal mammary epithelial cells can acquire basal stem cell properties following ingestion of EP4 antagonist-induced stem cell extracellular vesicles/exosomes, and can then form mammary glands. These findings demonstrate that PGE2 /EP4 signaling controls homeostasis of mammary epithelial stem cells through regulating extracellular vesicle/exosome release. Reprogramming of mammary epithelial cells can result from EP4 -mediated stem cell property transfer by extracellular vesicles/exosomes containing caveolae-associated proteins, between mammary basal and luminal epithelial cells. Stem Cells 2017;35:425-444.
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Affiliation(s)
- Meng-Chieh Lin
- Institute of Cellular and System Medicine, National Health Research Institutes, Miaoli, Taiwan
| | - Shih-Yin Chen
- Institute of Cellular and System Medicine, National Health Research Institutes, Miaoli, Taiwan
| | - Ho-Min Tsai
- Institute of Cellular and System Medicine, National Health Research Institutes, Miaoli, Taiwan
| | - Pei-Lin He
- Institute of Cellular and System Medicine, National Health Research Institutes, Miaoli, Taiwan
| | - Yen-Chun Lin
- Institute of Cellular and System Medicine, National Health Research Institutes, Miaoli, Taiwan.,Department of Biochemistry, University of Washington, Seattle, Washington, USA
| | - Harvey Herschman
- Department of Molecular & Medical Pharmacology, University of California, Los Angeles, Los Angeles, California, USA.,Department of Biological Chemistry, University of California, Los Angeles, Los Angeles, California, USA
| | - Hua-Jung Li
- Institute of Cellular and System Medicine, National Health Research Institutes, Miaoli, Taiwan
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Crottès D, Martial S, Rapetti-Mauss R, Pisani DF, Loriol C, Pellissier B, Martin P, Chevet E, Borgese F, Soriani O. Sig1R protein regulates hERG channel expression through a post-translational mechanism in leukemic cells. J Biol Chem 2011; 286:27947-58. [PMID: 21680736 PMCID: PMC3151040 DOI: 10.1074/jbc.m111.226738] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2011] [Revised: 06/15/2011] [Indexed: 12/18/2022] Open
Abstract
Sig1R (Sigma-1receptor) is a 25-kDa protein structurally unrelated to other mammalian proteins. Sig1R is present in brain, liver, and heart and is overexpressed in cancer cells. Studies using exogenous sigma ligands have shown that Sig1R interacts with a variety of ion channels, but its intrinsic function and mechanism of action remain unclear. The human ether-à-gogo related gene (hERG) encodes a cardiac channel that is also abnormally expressed in many primary human cancers, potentiating tumor progression through the modulation of extracellular matrix adhesive interactions. We show herein that sigma ligands inhibit hERG current density and cell adhesion to fibronectin in K562 myeloid leukemia cells. Heterologous expression in Xenopus oocytes demonstrates that Sig1R potentiates hERG current by stimulating channel subunit biosynthesis. Silencing Sig1R in leukemic K562 cells depresses hERG current density and cell adhesion to fibronectin by reducing hERG membrane expression. In K562 cells, Sig1R silencing does not modify hERG mRNA contents but reduces hERG mature form densities. In HEK cells expressing hERG and Sig1R, both proteins co-immunoprecipitate, demonstrating a physical association. Finally, Sig1R expression enhances both channel protein maturation and stability. Altogether, these results demonstrate for the first time that Sig1R controls ion channel expression through the regulation of subunit trafficking activity.
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Affiliation(s)
- David Crottès
- From CNRS, UMR 6543, Nice 06108 Cedex 2, France
- the Université de Nice, UMR 6543, Nice 06108 Cedex 2, France
| | - Sonia Martial
- From CNRS, UMR 6543, Nice 06108 Cedex 2, France
- the Université de Nice, UMR 6543, Nice 06108 Cedex 2, France
| | - Raphaël Rapetti-Mauss
- From CNRS, UMR 6543, Nice 06108 Cedex 2, France
- the Université de Nice, UMR 6543, Nice 06108 Cedex 2, France
| | - Didier F. Pisani
- From CNRS, UMR 6543, Nice 06108 Cedex 2, France
- the Université de Nice, UMR 6543, Nice 06108 Cedex 2, France
| | - Céline Loriol
- the Institut de Neuromedecine Moléculaire/Institut de Pharmacologie Moléculaire et Cellulaire CNRS, 06560 Valbonne, France, and
| | - Bernard Pellissier
- From CNRS, UMR 6543, Nice 06108 Cedex 2, France
- the Université de Nice, UMR 6543, Nice 06108 Cedex 2, France
| | - Patrick Martin
- From CNRS, UMR 6543, Nice 06108 Cedex 2, France
- the Université de Nice, UMR 6543, Nice 06108 Cedex 2, France
| | - Eric Chevet
- INSERM U1053, Université Bordeaux 2, 33076 Bordeaux, France
| | - Franck Borgese
- From CNRS, UMR 6543, Nice 06108 Cedex 2, France
- the Université de Nice, UMR 6543, Nice 06108 Cedex 2, France
| | - Olivier Soriani
- From CNRS, UMR 6543, Nice 06108 Cedex 2, France
- the Université de Nice, UMR 6543, Nice 06108 Cedex 2, France
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13
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Optimization of formaldehyde cross-linking for protein interaction analysis of non-tagged integrin beta1. J Biomed Biotechnol 2010; 2010:927585. [PMID: 20634879 PMCID: PMC2896913 DOI: 10.1155/2010/927585] [Citation(s) in RCA: 111] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2010] [Accepted: 03/20/2010] [Indexed: 11/25/2022] Open
Abstract
Formaldehyde cross-linking of protein complexes combined with immunoprecipitation and mass spectrometry analysis is a promising technique for analysing protein-protein interactions, including those of transient nature. Here we used integrin β1 as a model to describe the application of formaldehyde cross-linking in detail, particularly focusing on the optimal parameters for cross-linking, the detection of formaldehyde cross-linked complexes, the utility of antibodies, and the identification of binding partners. Integrin β1 was found in a high molecular weight complex after formaldehyde cross-linking. Eight different anti-integrin β1 antibodies were used for pull-down experiments and no loss in precipitation efficiency after cross-linking was observed. However, two of the antibodies could not precipitate the complex, probably due to hidden epitopes. Formaldehyde cross-linked complexes, precipitated from Jurkat cells or human platelets and analyzed by mass spectrometry, were found to be composed of integrin β1, α4 and α6 or β1, α6, α2, and α5, respectively.
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Isaji T, Sato Y, Fukuda T, Gu J. N-glycosylation of the I-like domain of beta1 integrin is essential for beta1 integrin expression and biological function: identification of the minimal N-glycosylation requirement for alpha5beta1. J Biol Chem 2009; 284:12207-16. [PMID: 19261610 DOI: 10.1074/jbc.m807920200] [Citation(s) in RCA: 82] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
N-Glycosylation of integrin alpha5beta1 plays a crucial role in cell spreading, cell migration, ligand binding, and dimer formation, but the detailed mechanisms by which N-glycosylation mediates these functions remain unclear. In a previous study, we showed that three potential N-glycosylation sites (alpha5S3-5) on the beta-propeller of the alpha5 subunit are essential to the functional expression of the subunit. In particular, site 5 (alpha5S5) is the most important for its expression on the cell surface. In this study, the function of the N-glycans on the integrin beta1 subunit was investigated using sequential site-directed mutagenesis to remove the combined putative N-glycosylation sites. Removal of the N-glycosylation sites on the I-like domain of the beta1 subunit (i.e. the Delta4-6 mutant) decreased both the level of expression and heterodimeric formation, resulting in inhibition of cell spreading. Interestingly, cell spreading was observed only when the beta1 subunit possessed these three N-glycosylation sites (i.e. the S4-6 mutant). Furthermore, the S4-6 mutant could form heterodimers with either alpha5S3-5 or alpha5S5 mutant of the alpha5 subunit. Taken together, the results of the present study reveal for the first time that N-glycosylation of the I-like domain of the beta1 subunit is essential to both the heterodimer formation and biological function of the subunit. Moreover, because the alpha5S3-5/beta1S4-6 mutant represents the minimal N-glycosylation required for functional expression of the beta1 subunit, it might also be useful for the study of molecular structures.
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Affiliation(s)
- Tomoya Isaji
- Division of Regulatory Glycobiology, Institute of Molecular Biomembrane and Glycobiology, Tohoku Pharmaceutical University, 4-4-1 Komatsushima, Aoba-ku, Sendai, Miyagi 981-8558, Japan
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15
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Eto DS, Jones TA, Sundsbak JL, Mulvey MA. Integrin-mediated host cell invasion by type 1-piliated uropathogenic Escherichia coli. PLoS Pathog 2008; 3:e100. [PMID: 17630833 PMCID: PMC1914067 DOI: 10.1371/journal.ppat.0030100] [Citation(s) in RCA: 212] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2007] [Accepted: 05/30/2007] [Indexed: 01/14/2023] Open
Abstract
Uropathogenic Escherichia coli (UPEC), the primary causative agent of urinary tract infections, typically express filamentous adhesive organelles called type 1 pili that mediate both bacterial attachment to and invasion of bladder urothelial cells. Several host proteins have previously been identified as receptors for type 1 pili, but none have been conclusively shown to promote UPEC entry into host bladder cells. Using overlay assays with FimH, the purified type 1 pilus adhesin, and mass spectroscopy, we have identified β1 and α3 integrins as key host receptors for UPEC. FimH recognizes N-linked oligosaccharides on these receptors, which are expressed throughout the urothelium. In a bladder cell culture system, β1 and α3 integrin receptors co-localize with invading type 1–piliated bacteria and F-actin. FimH-mediated bacterial invasion of host bladder cells is inhibited by β1 and α3 integrin–specific antibodies and by disruption of the β1 integrin gene in the GD25 fibroblast cell line. Phosphorylation site mutations within the cytoplasmic tail of β1 integrin that alter integrin signaling also variably affect UPEC entry into host cells, by either attenuating or boosting invasion frequencies. Furthermore, focal adhesion and Src family kinases, which propagate integrin-linked signaling and downstream cytoskeletal rearrangements, are shown to be required for FimH-dependent bacterial invasion of target host cells. Cumulatively, these results indicate that β1 and α3 integrins are functionally important receptors for type 1 pili–expressing bacteria within the urinary tract and possibly at other sites within the host. Strains of bacteria called uropathogenic Escherichia coli (UPEC) are the primary cause of urinary tract infections (UTIs), which by some estimates are the second most common type of infectious disease in the world today. UPEC strains typically express hair-like fibers called type 1 pili on their surface that allow them to bind and invade the host cells that line the urinary tract. The ability of UPEC to enter these host cells likely promotes the establishment and persistence of UTIs. The invasion process requires that the incoming pathogens first bind specific receptor molecules on the target cell surface. Here, we identify two host proteins known as β1 and α3 integrin as key receptors for type 1 pili–expressing UPEC. The adhesive tips of type 1 pili recognize sugars that decorate these integrin receptors, thereby activating a signaling cascade that stimulates the host plasma membrane to zipper around and envelop bound bacteria. β1 and α3 integrins have important roles in a number of host cell functions and are widely distributed within the urinary tract and in other tissues. Interestingly, type 1 pili are expressed by many different types of bacteria in addition to UPEC, raising the possibility that interactions between type 1 pili and integrin receptors can facilitate bacterial colonization within diverse niches throughout the host.
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Affiliation(s)
- Danelle S Eto
- Division of Cell Biology and Immunology, Pathology Department, University of Utah, Salt Lake City, Utah, United States of America
| | - Tiffani A Jones
- Division of Cell Biology and Immunology, Pathology Department, University of Utah, Salt Lake City, Utah, United States of America
| | - Jamie L Sundsbak
- Division of Cell Biology and Immunology, Pathology Department, University of Utah, Salt Lake City, Utah, United States of America
| | - Matthew A Mulvey
- Division of Cell Biology and Immunology, Pathology Department, University of Utah, Salt Lake City, Utah, United States of America
- * To whom correspondence should be addressed. E-mail:
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16
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Kloepper J, Hendrix S, Bodó E, Tiede S, Humphries M, Philpott M, Fässler R, Paus R. Functional role of β1 integrin-mediated signalling in the human hair follicle. Exp Cell Res 2008; 314:498-508. [DOI: 10.1016/j.yexcr.2007.10.030] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2007] [Revised: 10/02/2007] [Accepted: 10/23/2007] [Indexed: 12/17/2022]
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17
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Wang L, Liang Y, Li Z, Cai X, Zhang W, Wu G, Jin J, Fang Z, Yang Y, Zha X. Increase in β1-6 GlcNAc branching caused byN-acetylglucosaminyltransferase V directs integrin β1 stability in human hepatocellular carcinoma cell line SMMC-7721. J Cell Biochem 2007; 100:230-41. [PMID: 16924681 DOI: 10.1002/jcb.21071] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
In this study, an enzymatic inactive mutant of GnT-V (delta cGnT-V) was constructed and transfected in SMMC 7721 cell line. Integrin beta1 in delta cGnT-V transfectants (delta c-7721) showed attenuation of the number of beta1-6 GlcNAc branching, whereas those in wtGnT-V transfectants (wt-7721) presented a beta1-6 GlcNAc-rich pattern. High integrin beta1 expression was observed in wt-7721 compared with mock cells (7721 cell transfected with the vector pcDNA3), while transfection of delta cGnT-V decreased the integrin beta1 expression, despite of no significant changes on integrin beta1 mRNA level in these cell lines. Pulse-chase experiment showed that Integrin beta1 in delta c-7721 was prone to quick degradation and its half-life was less than 3 h, on the contrary, the alleviating degradation of beta1 subunit was observed in wt-7721 where the beta1 subunit half-life was about 16 h, meanwhile, the degradation rate of beta1 subunit in mock cells was in between, about 10 h. More effective in promoting cell migration toward fibronectin and invasion through Matrigel was observed in wt-7721 while this was almost suppressed in delta c-7721. Our results suggest that the addition of beta1-6 GlcNAc branching caused more fully glycosylated mature form on integrin beta1 and inhibited beta1 protein degradation. Glycosylation caused by GnT-V directs integrin beta1 stability and more delivery to plasma membrane, subsequently promotes Fn-based cell migration and invasion.
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Affiliation(s)
- Liying Wang
- Department of Biochemistry and Molecular Biology, Shanghai Medical College, Fudan University, Shanghai 200032, China
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