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Huang D, Liu J, Yang J, Liang J, Zhang J, Han Q, Yu J, Yang T, Meng Q, Steinberg T, Li C, Chang Z. Restoration of Pregnancy Function Using a GT/PCL Biofilm in a Rabbit Model of Uterine Injury. Tissue Eng Part A 2024. [PMID: 38526390 DOI: 10.1089/ten.tea.2023.0366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/26/2024] Open
Abstract
Biomaterial scaffolds have been used successfully to promote the regenerative repair of small endometrial lesions in small rodents, providing partial restoration of gestational function. The use of rabbits in this study allowed us to investigate a larger endometrial tissue defect and myometrial injury model. A gelatin/polycaprolactone (GT/PCL) gradient-layer biofilm was sutured at the defect to guide the reconstruction of the original tissue structure. Twenty-eight days postimplantation, the uterine cavity had been restored to its original morphology, endometrial growth was accompanied by the formation of glands and blood vessels, and the fragmented myofibers of the uterine smooth muscle had begun to resemble the normal structure of the lagomorph uterine cavity, arranging in a circular luminal pattern and a longitudinal serosal pattern. In addition, the repair site supported both embryonic implantation into the placenta and normal embryonic development. Four-dimensional label-free proteomic analysis identified the cell adhesion molecules, phagosome, ferroptosis, rap1 signaling pathways, hematopoietic cell lineage, complement and coagulation cascades, tricarboxylic acid cycle, carbon metabolism, and hypoxia inducible factor (HIF)-1 signaling pathways as important in the endogenous repair process of uterine tissue injury, and acetylation of protein modification sites upregulated these signaling pathways.
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Affiliation(s)
- Di Huang
- Department of Obstetrics and Gynecology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, P. R. China
- Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, P. R. China
| | - Jing Liu
- The Affiliated Taian City Central Hospital of Qingdao University, Taian, P. R. China
| | - Jie Yang
- The Affiliated Taian City Central Hospital of Qingdao University, Taian, P. R. China
| | - Junhui Liang
- Department of Gynaecology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, P. R. China
| | - Jing Zhang
- Shandong First Medical University, Tai'an, P. R. China
| | - Qinyu Han
- Shandong First Medical University, Jinan, P. R. China
| | - Jianlong Yu
- Rizhao People's Hospital, Rizhao, P. R. China
| | - Tingting Yang
- Tai'an Maternal and Child Health Hospital, Tai'an, P. R. China
| | - Qi Meng
- The Affiliated Taian City Central Hospital of Qingdao University, Taian, P. R. China
| | - Thorsten Steinberg
- Division of Oral Biotechnology, Center for Dental Medicine, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Changzhong Li
- Center of Obstetrics and Gynecology, Peking University Shenzhen Hospital, Shenzhen, P. R. China
- Institute of Obstetrics and Gynecology, Shenzhen PKU-HKUST Medical Center, Shenzhen, P. R. China
- Shenzhen Key Laboratory on Technology for Early Diagnosis of Major Gynecologic Diseases, Shenzhen, P. R. China
| | - Zhongle Chang
- Shandong Agriculture University, Tai'an, P. R. China
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Rodriguez-Polanco WR, Norris A, Velasco AB, Gleason AM, Grant BD. Syndapin and GTPase RAP-1 control endocytic recycling via RHO-1 and non-muscle myosin II. Curr Biol 2023; 33:4844-4856.e5. [PMID: 37832552 PMCID: PMC10841897 DOI: 10.1016/j.cub.2023.09.051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 08/07/2023] [Accepted: 09/21/2023] [Indexed: 10/15/2023]
Abstract
After endocytosis, many plasma membrane components are recycled via membrane tubules that emerge from early endosomes to form recycling endosomes, eventually leading to their return to the plasma membrane. We previously showed that Syndapin/PACSIN-family protein SDPN-1 is required in vivo for basolateral endocytic recycling in the C. elegans intestine. Here, we document an interaction between the SDPN-1 SH3 domain and a target sequence in PXF-1/PDZ-GEF1/RAPGEF2, a known exchange factor for Rap-GTPases. We found that endogenous mutations engineered into the SDPN-1 SH3 domain, or its binding site in the PXF-1 protein, interfere with recycling in vivo, as does the loss of the PXF-1 target RAP-1. In some contexts, Rap-GTPases negatively regulate RhoA activity, suggesting a potential for Syndapin to regulate RhoA. Our results indicate that in the C. elegans intestine, RHO-1/RhoA is enriched on SDPN-1- and RAP-1-positive endosomes, and the loss of SDPN-1 or RAP-1 elevates RHO-1(GTP) levels on intestinal endosomes. Furthermore, we found that depletion of RHO-1 suppressed sdpn-1 mutant recycling defects, indicating that control of RHO-1 activity is a key mechanism by which SDPN-1 acts to promote endocytic recycling. RHO-1/RhoA is well known for controlling actomyosin contraction cycles, although little is known about the effects of non-muscle myosin II on endosomes. Our analysis found that non-muscle myosin II is enriched on SDPN-1-positive endosomes, with two non-muscle myosin II heavy-chain isoforms acting in apparent opposition. Depletion of nmy-2 inhibited recycling like sdpn-1 mutants, whereas depletion of nmy-1 suppressed sdpn-1 mutant recycling defects, indicating that actomyosin contractility controls recycling endosome function.
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Affiliation(s)
| | - Anne Norris
- Department of Molecular Biology and Biochemistry, Rutgers University, Piscataway, NJ 08854, USA
| | - Agustin B Velasco
- Department of Molecular Biology and Biochemistry, Rutgers University, Piscataway, NJ 08854, USA
| | - Adenrele M Gleason
- Department of Molecular Biology and Biochemistry, Rutgers University, Piscataway, NJ 08854, USA; Medical Genetics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Barth D Grant
- Department of Molecular Biology and Biochemistry, Rutgers University, Piscataway, NJ 08854, USA; Rutgers Center for Lipid Research, Rutgers, the State University of New Jersey, New Brunswick, NJ 08901-8521, USA.
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3
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Noshita S, Kubo Y, Kajiwara K, Okuzaki D, Nada S, Okada M. A TGF-β-responsive enhancer regulates SRC expression and epithelial-mesenchymal transition-associated cell migration. J Cell Sci 2023; 136:jcs261001. [PMID: 37439249 PMCID: PMC10445741 DOI: 10.1242/jcs.261001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Accepted: 06/30/2023] [Indexed: 07/14/2023] Open
Abstract
The non-receptor tyrosine kinase SRC is overexpressed and/or hyperactivated in various human cancers, and facilitates cancer progression by promoting invasion and metastasis. However, the mechanisms underlying SRC upregulation are poorly understood. In this study, we demonstrate that transforming growth factor-β (TGF-β) induces SRC expression at the transcriptional level by activating an intragenic the SRC enhancer. In the human breast epithelial cell line MCF10A, TGF-β1 stimulation upregulated one of the SRC promotors, the 1A promoter, resulting in increased SRC mRNA and protein levels. Chromatin immunoprecipitation (ChIP)-sequencing analysis revealed that the SMAD complex is recruited to three enhancer regions ∼15 kb upstream and downstream of the SRC promoter, and one of them is capable of activating the SRC promoter in response to TGF-β. JUN, a member of the activator protein (AP)-1 family, localises to the enhancer and regulates TGF-β-induced SRC expression. Furthermore, TGF-β-induced SRC upregulation plays a crucial role in epithelial-mesenchymal transition (EMT)-associated cell migration by activating the SRC-focal adhesion kinase (FAK) circuit. Overall, these results suggest that TGF-β-induced SRC upregulation promotes cancer cell invasion and metastasis in a subset of human malignancies.
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Affiliation(s)
- Soshi Noshita
- Department of Oncogene Research, Research Institute for Microbial Diseases, Osaka University, 3-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Yuki Kubo
- Department of Oncogene Research, Research Institute for Microbial Diseases, Osaka University, 3-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Kentaro Kajiwara
- Department of Oncogene Research, Research Institute for Microbial Diseases, Osaka University, 3-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Daisuke Okuzaki
- Genome Information Research Center, Research Institute for Microbial Diseases, Osaka University, 3-1 Yamadaoka, Suita, Osaka 565-0871, Japan
- Human Immunology lab, World Premier International Immunology Frontier Research Centre, Osaka University, Suita, Osaka 565-0871, Japan
| | - Shigeyuki Nada
- Department of Oncogene Research, Research Institute for Microbial Diseases, Osaka University, 3-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Masato Okada
- Department of Oncogene Research, Research Institute for Microbial Diseases, Osaka University, 3-1 Yamadaoka, Suita, Osaka 565-0871, Japan
- Laboratory of Oncogene research, World Premier International Immunology Frontier Research Centre, Osaka University, Suita, Osaka 565-0871, Japan
- Center for Infectious Disease Education and Research, Osaka University, Suita, Osaka 565-0871, Japan
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Rothenberg KE, Chen Y, McDonald JA, Fernandez-Gonzalez R. Rap1 coordinates cell-cell adhesion and cytoskeletal reorganization to drive collective cell migration in vivo. Curr Biol 2023:S0960-9822(23)00603-6. [PMID: 37244252 DOI: 10.1016/j.cub.2023.05.009] [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: 10/05/2022] [Revised: 03/16/2023] [Accepted: 05/04/2023] [Indexed: 05/29/2023]
Abstract
Collective cell movements contribute to tissue development and repair and spread metastatic disease. In epithelia, cohesive cell movements require reorganization of adherens junctions and the actomyosin cytoskeleton. However, the mechanisms that coordinate cell-cell adhesion and cytoskeletal remodeling during collective cell migration in vivo are unclear. We investigated the mechanisms of collective cell migration during epidermal wound healing in Drosophila embryos. Upon wounding, the cells adjacent to the wound internalize cell-cell adhesion molecules and polarize actin and the motor protein non-muscle myosin II to form a supracellular cable around the wound that coordinates cell movements. The cable anchors at former tricellular junctions (TCJs) along the wound edge, and TCJs are reinforced during wound closure. We found that the small GTPase Rap1 was necessary and sufficient for rapid wound repair. Rap1 promoted myosin polarization to the wound edge and E-cadherin accumulation at TCJs. Using embryos expressing a mutant form of the Rap1 effector Canoe/Afadin that cannot bind Rap1, we found that Rap1 signals through Canoe for adherens junction remodeling, but not for actomyosin cable assembly. Instead, Rap1 was necessary and sufficient for RhoA/Rho1 activation at the wound edge. The RhoGEF Ephexin localized to the wound edge in a Rap1-dependent manner, and Ephexin was necessary for myosin polarization and rapid wound repair, but not for E-cadherin redistribution. Together, our data show that Rap1 coordinates the molecular rearrangements that drive embryonic wound healing, promoting actomyosin cable assembly through Ephexin-Rho1, and E-cadherin redistribution through Canoe, thus enabling rapid collective cell migration in vivo.
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Affiliation(s)
- Katheryn E Rothenberg
- Institute of Biomedical Engineering, University of Toronto, Toronto, ON M5S 3G9, Canada; Translational Biology and Engineering Program, Ted Rogers Centre for Heart Research, University of Toronto, Toronto, ON M5G 1M1, Canada
| | - Yujun Chen
- Division of Biology, Kansas State University, Manhattan, KS 66506, USA
| | | | - Rodrigo Fernandez-Gonzalez
- Institute of Biomedical Engineering, University of Toronto, Toronto, ON M5S 3G9, Canada; Translational Biology and Engineering Program, Ted Rogers Centre for Heart Research, University of Toronto, Toronto, ON M5G 1M1, Canada; Department of Cell and Systems Biology, University of Toronto, Toronto, ON M5S 3G5, Canada; Developmental and Stem Cell Biology Program, The Hospital for Sick Children, Toronto, ON M5G 1X8, Canada.
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5
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Koizume S, Kanayama T, Kimura Y, Hirano H, Takahashi T, Ota Y, Miyazaki K, Yoshihara M, Nakamura Y, Yokose T, Kato H, Takenaka K, Sato S, Tadokoro H, Miyagi E, Miyagi Y. Cancer cell-derived CD69 induced under lipid and oxygen starvation promotes ovarian cancer progression through fibronectin. Cancer Sci 2023. [PMID: 36854451 DOI: 10.1111/cas.15774] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 02/17/2023] [Accepted: 02/22/2023] [Indexed: 03/02/2023] Open
Abstract
Cancer tissues generally have molecular oxygen and serum component deficiencies because of poor vascularization. Recently, we revealed that ICAM1 is strongly activated through lipophagy in ovarian clear cell carcinoma (CCC) cells in response to starvation of long-chain fatty acids and oxygen and confers resistance to apoptosis caused by these harsh conditions. CD69 is a glycoprotein that is synthesized in immune cells and is associated with their activation through cellular signaling pathways. However, the expression and function of CD69 in nonhematological cells is unclear. Here, we report that CD69 is induced in CCC cells as in ICAM1. Mass spectrometry analysis of phosphorylated peptides followed by pathway analysis revealed that CD69 augments CCC cell binding to fibronectin (FN) in association with the phosphorylation of multiple cellular signaling molecules including the focal adhesion pathway. Furthermore, CD69 synthesized in CCC cells could facilitate cell survival because the CD69-FN axis can induce epithelial-mesenchymal transition. Experiments with surgically removed tumor samples revealed that CD69 is predominantly expressed in CCC tumor cells compared with other histological subtypes of epithelial ovarian cancer. Overall, our data suggest that cancer cell-derived CD69 can contribute to CCC progression through FN.
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Affiliation(s)
- Shiro Koizume
- Molecular Pathology and Genetics Division, Kanagawa Cancer Center Research Institute, Yokohama, Japan
- Department of Pathology, Kanagawa Cancer Center Hospital, Yokohama, Japan
| | - Tomohiko Kanayama
- Molecular Pathology and Genetics Division, Kanagawa Cancer Center Research Institute, Yokohama, Japan
| | - Yayoi Kimura
- Advancer Medical Research Center, Yokohama City University, Yokohama, Japan
| | - Hisashi Hirano
- Advancer Medical Research Center, Yokohama City University, Yokohama, Japan
| | - Tomoko Takahashi
- Molecular Pathology and Genetics Division, Kanagawa Cancer Center Research Institute, Yokohama, Japan
| | - Yukihide Ota
- Molecular Pathology and Genetics Division, Kanagawa Cancer Center Research Institute, Yokohama, Japan
- Department of Obstetrics, Gynecology and Molecular Reproductive Science, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Kaoru Miyazaki
- Molecular Pathology and Genetics Division, Kanagawa Cancer Center Research Institute, Yokohama, Japan
| | - Mitsuyo Yoshihara
- Molecular Pathology and Genetics Division, Kanagawa Cancer Center Research Institute, Yokohama, Japan
| | - Yoshiyasu Nakamura
- Molecular Pathology and Genetics Division, Kanagawa Cancer Center Research Institute, Yokohama, Japan
| | - Tomoyuki Yokose
- Department of Pathology, Kanagawa Cancer Center Hospital, Yokohama, Japan
| | - Hisamori Kato
- Department of Gynecology, Kanagawa Cancer Center Hospital, Yokohama, Japan
| | - Katsuya Takenaka
- Molecular Pathology and Genetics Division, Kanagawa Cancer Center Research Institute, Yokohama, Japan
| | - Shinya Sato
- Molecular Pathology and Genetics Division, Kanagawa Cancer Center Research Institute, Yokohama, Japan
- Department of Pathology, Kanagawa Cancer Center Hospital, Yokohama, Japan
| | - Hiroko Tadokoro
- Molecular Pathology and Genetics Division, Kanagawa Cancer Center Research Institute, Yokohama, Japan
| | - Etsuko Miyagi
- Department of Obstetrics, Gynecology and Molecular Reproductive Science, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Yohei Miyagi
- Molecular Pathology and Genetics Division, Kanagawa Cancer Center Research Institute, Yokohama, Japan
- Department of Pathology, Kanagawa Cancer Center Hospital, Yokohama, Japan
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6
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Rodriguez-Polanco WR, Norris A, Velasco AB, Gleason AM, Grant BD. Syndapin Regulates the RAP-1 GTPase to Control Endocytic Recycling via RHO-1 and Non-Muscle Myosin II. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.02.27.530328. [PMID: 36909525 PMCID: PMC10002613 DOI: 10.1101/2023.02.27.530328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
Abstract
After endocytosis, many plasma membrane components are recycled via narrow-diameter membrane tubules that emerge from early endosomes to form recycling endosomes, eventually leading to their return to the plasma membrane. We previously showed that the F-BAR and SH3 domain Syndapin/PACSIN-family protein SDPN-1 is required in vivo for basolateral endocytic recycling in the C. elegans intestine. Here we sought to determine the significance of a predicted interaction between the SDPN-1 SH3 domain and a target sequence in PXF-1/PDZ-GEF1/RAPGEF2, a known exchange factor for Rap-GTPases. We found that endogenous mutations we engineered into the SDPN-1 SH3 domain, or its binding site in the PXF-1 protein, interfere with recycling in vivo , as does loss of the PXF-1 target RAP-1. Rap-GTPases have been shown in several contexts to negatively regulate RhoA activity. Our results show that RHO-1/RhoA is enriched on SDPN-1 and RAP-1 positive endosomes in the C. elegans intestine, and loss of SDPN-1 or RAP-1 elevates RHO-1(GTP) levels on intestinal endosomes. Furthermore, we found that depletion of RHO-1 suppressed sdpn-1 mutant recycling defects, indicating that control of RHO-1 activity is a key mechanism by which SDPN-1 acts to promote endocytic recycling. RHO-1/RhoA is well-known for controlling actomyosin contraction cycles, although little is known of non-muscle myosin II on endosomes. Our analysis found that non-muscle myosin II is enriched on SDPN-1 positive endosomes, with two non-muscle myosin II heavy chain isoforms acting in apparent opposition. Depletion of nmy-2 inhibited recycling like sdpn-1 mutants, while depletion of nmy-1 suppressed sdpn-1 mutant recycling defects, indicating actomyosin contractility in controlling recycling endosome function.
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7
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Maywald ML, Picciotto C, Lepa C, Bertgen L, Yousaf FS, Ricker A, Klingauf J, Krahn MP, Pavenstädt H, George B. Rap1 Activity Is Essential for Focal Adhesion and Slit Diaphragm Integrity. Front Cell Dev Biol 2022; 10:790365. [PMID: 35372328 PMCID: PMC8972170 DOI: 10.3389/fcell.2022.790365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Accepted: 02/24/2022] [Indexed: 11/24/2022] Open
Abstract
Glomerular podocytes build, with their intercellular junctions, part of the kidney filter. The podocyte cell adhesion protein, nephrin, is essential for developing and maintaining slit diaphragms as functional loss in humans results in heavy proteinuria. Nephrin expression and function are also altered in many adult-onset glomerulopathies. Nephrin signals from the slit diaphragm to the actin cytoskeleton and integrin β1 at focal adhesions by recruiting Crk family proteins, which can interact with the Rap guanine nucleotide exchange factor 1 C3G. As Rap1 activity affects focal adhesion formation, we hypothesize that nephrin signals via Rap1 to integrin β. To address this issue, we combined Drosophila in vivo and mammalian cell culture experiments. We find that Rap1 is necessary for correct targeting of integrin β to focal adhesions in Drosophila nephrocytes, which also form slit diaphragm-like structures. In the fly, the Rap1 activity is important for signaling of the nephrin ortholog to integrin β, as well as for nephrin-dependent slit diaphragm integrity. We show by genetic interaction experiments that Rap1 functions downstream of nephrin signaling to integrin β and downstream of nephrin signaling necessary for slit diaphragm integrity. Similarly, in human podocyte culture, nephrin activation results in increased activation of Rap1. Thus, Rap1 is necessary for downstream signal transduction of nephrin to integrin β.
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Affiliation(s)
- Mee-Ling Maywald
- Medizinische Klinik D, University Hospital Münster, Münster, Germany
| | - Cara Picciotto
- Medizinische Klinik D, University Hospital Münster, Münster, Germany
| | - Carolin Lepa
- Medizinische Klinik D, University Hospital Münster, Münster, Germany
| | - Luisa Bertgen
- Medizinische Klinik D, University Hospital Münster, Münster, Germany
| | | | - Andrea Ricker
- Institute of Medical Physics and Biophysics, Westfälische Wilhelms-University Münster, Münster, Germany
| | - Jürgen Klingauf
- Institute of Medical Physics and Biophysics, Westfälische Wilhelms-University Münster, Münster, Germany
| | - Michael P. Krahn
- Medizinische Klinik D, Medical Cell Biology, University Hospital Münster, Münster, Germany
| | | | - Britta George
- Medizinische Klinik D, University Hospital Münster, Münster, Germany
- *Correspondence: Britta George,
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Nam MW, Kim CW, Choi KC. Epithelial-Mesenchymal Transition-Inducing Factors Involved in the Progression of Lung Cancers. Biomol Ther (Seoul) 2022; 30:213-220. [PMID: 35039464 PMCID: PMC9047489 DOI: 10.4062/biomolther.2021.178] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 01/05/2022] [Accepted: 01/05/2022] [Indexed: 11/15/2022] Open
Abstract
Although there have been advances in cancer therapy and surgical improvement, lung cancer has the lowest survival rate (19%) at all stages. This is because most patients are diagnosed with concurrent metastasis, which occurs due to numerous related reasons. Especially, lung cancer is one of the most common and malignant cancers in the world. Although there are advanced therapeutic strategies, lung cancer remains one of the main causes of cancer death. Recent work has proposed that epithelial-mesenchymal transition (EMT) is the main cause of metastasis in most cases of human cancers including lung cancer. EMT involves the conversion of epithelial cells, wherein the cells lose their epithelial abilities and become mesenchymal cells involved in embryonic development, such as gastrulation and neural crest formation. In addition, recent research has indicated that EMT contributes to altering the cancer cells into cancer stem cells (CSCs). Although EMT is important in the developmental stages, this process also activates lung cancer progression, including complicated and diverse signaling pathways. Despite the numerous investigations on signaling pathways involved in the progression of lung cancer, this malignancy is considered critical for treatment. EMT in lung cancer involves many transcription factors and inducers, for example, Snail, TWIST, and ZEB are the master regulators of EMT. EMT-related factors and signaling pathways are involved in the progression of lung cancer, proposing new approaches to lung cancer therapy. In the current review, we highlight the signaling pathways implicated in lung cancer and elucidate the correlation of these pathways, indicating new insights to treat lung cancer and other malignancies.
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Affiliation(s)
- Min-Woo Nam
- Laboratory of Biochemistry and Immunology, College of Veterinary Medicine, Chungbuk National University, Cheongju 28644, Republic of Korea
| | - Cho-Won Kim
- Laboratory of Biochemistry and Immunology, College of Veterinary Medicine, Chungbuk National University, Cheongju 28644, Republic of Korea
| | - Kyung-Chul Choi
- Laboratory of Biochemistry and Immunology, College of Veterinary Medicine, Chungbuk National University, Cheongju 28644, Republic of Korea
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9
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Transcriptomic Profile of New Gene Markers Encoding Proteins Responsible for Structure of Porcine Ovarian Granulosa Cells. BIOLOGY 2021; 10:biology10111214. [PMID: 34827207 PMCID: PMC8615192 DOI: 10.3390/biology10111214] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 11/06/2021] [Accepted: 11/16/2021] [Indexed: 12/14/2022]
Abstract
Simple Summary The extracellular matrix (ECM) is involved in many physiological processes that occur in the ovary and affect reproduction in animals and humans. The ECM has been shown to significantly affect folliculogenesis, ovulation, and corpus luteum formation. This is mainly due to the involvement of ECM in intercellular signaling. In the present study, we report the gene expression profile of porcine granulosa cells during their primary in vitro culture. The genes presented are related to ECM formation but also to cadherins and integrins that influence intercellular dialogue. During the study, it was shown that most of the genes were upregulated. A detailed understanding of the expression of genes such as POSTN, CHI3L1, CAV-1, IRS1, DCN in in vitro culture of granulosa cells may provide a basis for further studies on the molecular mechanisms occurring within the ovary. Knowledge of ECM-related gene expression within granulosa cells can also be used to study the recently discovered stemness of these cells. Moreover, the presented data may serve for the development of assisted reproduction techniques, which, especially in vitro, are becoming increasingly common. Abstract The extracellular matrix (ECM) in granulosa cells is functionally very important, and it is involved in many processes related to ovarian follicle growth and ovulation. The aim of this study was to describe the expression profile of genes within granulosa cells that are associated with extracellular matrix formation, intercellular signaling, and cell–cell fusion. The material for this study was ovaries of sexually mature pigs obtained from a commercial slaughterhouse. Laboratory-derived granulosa cells (GCs) from ovarian follicles were cultured in a primary in vitro culture model. The extracted genetic material (0, 48, 96, and 144 h) were subjected to microarray expression analysis. Among 81 genes, 66 showed increased expression and only 15 showed decreased expression were assigned to 7 gene ontology groups “extracellular matrix binding”, “extracellular matrix structural constituent”, “binding, bridging”, “cadherin binding”, “cell adhesion molecule binding”, “collagen binding” and “cadherin binding involved in cell-cell adhesion”. The 10 genes with the highest expression (POSTN, ITGA2, FN1, LAMB1, ITGB3, CHI3L1, PCOLCE2, CAV1, DCN, COL14A1) and 10 of the most down-regulated (SPP1, IRS1, CNTLN, TMPO, PAICS, ANK2, ADAM23, ABI3BP, DNAJB1, IGF1) were selected for further analysis. The results were validated by RT-qPCR. The current results may serve as preliminary data for further analyses using in vitro granulosa cell cultures in assisted reproduction technologies, studies of pathological processes in the ovary as well as in the use of the stemness potential of GCs.
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10
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Retta SF, Perrelli A, Trabalzini L, Finetti F. From Genes and Mechanisms to Molecular-Targeted Therapies: The Long Climb to the Cure of Cerebral Cavernous Malformation (CCM) Disease. Methods Mol Biol 2021; 2152:3-25. [PMID: 32524540 DOI: 10.1007/978-1-0716-0640-7_1] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Cerebral cavernous malformation (CCM) is a rare cerebrovascular disorder of genetic origin consisting of closely clustered, abnormally dilated and leaky capillaries (CCM lesions), which occur predominantly in the central nervous system. CCM lesions can be single or multiple and may result in severe clinical symptoms, including focal neurological deficits, seizures, and intracerebral hemorrhage. Early human genetic studies demonstrated that CCM disease is linked to three chromosomal loci and can be inherited as autosomal dominant condition with incomplete penetrance and highly variable expressivity, eventually leading to the identification of three disease genes, CCM1/KRIT1, CCM2, and CCM3/PDCD10, which encode for structurally unrelated intracellular proteins that lack catalytic domains. Biochemical, molecular, and cellular studies then showed that these proteins are involved in endothelial cell-cell junction and blood-brain barrier stability maintenance through the regulation of major cellular structures and mechanisms, including endothelial cell-cell and cell-matrix adhesion, actin cytoskeleton dynamics, autophagy, and endothelial-to-mesenchymal transition, suggesting that they act as pleiotropic regulators of cellular homeostasis, and opening novel therapeutic perspectives. Indeed, accumulated evidence in cellular and animal models has eventually revealed that the emerged pleiotropic functions of CCM proteins are mainly due to their ability to modulate redox-sensitive pathways and mechanisms involved in adaptive responses to oxidative stress and inflammation, thus contributing to the preservation of cellular homeostasis and stress defenses.In this introductory review, we present a general overview of 20 years of amazing progress in the identification of genetic culprits and molecular mechanisms underlying CCM disease pathogenesis, and the development of targeted therapeutic strategies.
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Affiliation(s)
- Saverio Francesco Retta
- Department of Clinical and Biological Science, School of Medicine and Surgery, University of Torino, Orbassano (Torino), Italy. .,CCM Italia Research Network, Torino, Italy.
| | - Andrea Perrelli
- Department of Clinical and Biological Science, School of Medicine and Surgery, University of Torino, Orbassano (Torino), Italy.,CCM Italia Research Network, Torino, Italy
| | - Lorenza Trabalzini
- CCM Italia Research Network, Torino, Italy.,Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Siena, Italy
| | - Federica Finetti
- CCM Italia Research Network, Torino, Italy.,Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Siena, Italy
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11
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Harnish JM, Link N, Yamamoto S. Drosophila as a Model for Infectious Diseases. Int J Mol Sci 2021; 22:2724. [PMID: 33800390 PMCID: PMC7962867 DOI: 10.3390/ijms22052724] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 02/11/2021] [Accepted: 02/14/2021] [Indexed: 12/19/2022] Open
Abstract
The fruit fly, Drosophila melanogaster, has been used to understand fundamental principles of genetics and biology for over a century. Drosophila is now also considered an essential tool to study mechanisms underlying numerous human genetic diseases. In this review, we will discuss how flies can be used to deepen our knowledge of infectious disease mechanisms in vivo. Flies make effective and applicable models for studying host-pathogen interactions thanks to their highly conserved innate immune systems and cellular processes commonly hijacked by pathogens. Drosophila researchers also possess the most powerful, rapid, and versatile tools for genetic manipulation in multicellular organisms. This allows for robust experiments in which specific pathogenic proteins can be expressed either one at a time or in conjunction with each other to dissect the molecular functions of each virulent factor in a cell-type-specific manner. Well documented phenotypes allow large genetic and pharmacological screens to be performed with relative ease using huge collections of mutant and transgenic strains that are publicly available. These factors combine to make Drosophila a powerful tool for dissecting out host-pathogen interactions as well as a tool to better understand how we can treat infectious diseases that pose risks to public health, including COVID-19, caused by SARS-CoV-2.
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Affiliation(s)
- J. Michael Harnish
- Department of Molecular and Human Genetics, Baylor College of Medicine (BCM), Houston, TX 77030, USA; (J.M.H.); (N.L.)
- Jan and Dan Duncan Neurological Research Institute, Texas Children’s Hospital, Houston, TX 77030, USA
| | - Nichole Link
- Department of Molecular and Human Genetics, Baylor College of Medicine (BCM), Houston, TX 77030, USA; (J.M.H.); (N.L.)
- Jan and Dan Duncan Neurological Research Institute, Texas Children’s Hospital, Houston, TX 77030, USA
- Howard Hughes Medical Institute, Houston, TX 77030, USA
| | - Shinya Yamamoto
- Department of Molecular and Human Genetics, Baylor College of Medicine (BCM), Houston, TX 77030, USA; (J.M.H.); (N.L.)
- Jan and Dan Duncan Neurological Research Institute, Texas Children’s Hospital, Houston, TX 77030, USA
- Department of Neuroscience, BCM, Houston, TX 77030, USA
- Development, Disease Models and Therapeutics Graduate Program, BCM, Houston, TX 77030, USA
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12
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Barcelona‐Estaje E, Dalby MJ, Cantini M, Salmeron‐Sanchez M. You Talking to Me? Cadherin and Integrin Crosstalk in Biomaterial Design. Adv Healthc Mater 2021; 10:e2002048. [PMID: 33586353 DOI: 10.1002/adhm.202002048] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 01/20/2021] [Indexed: 12/21/2022]
Abstract
While much work has been done in the design of biomaterials to control integrin-mediated adhesion, less emphasis has been put on functionalization of materials with cadherin ligands. Yet, cell-cell contacts in combination with cell-matrix interactions are key in driving embryonic development, collective cell migration, epithelial to mesenchymal transition, and cancer metastatic processes, among others. This review focuses on the incorporation of both cadherin and integrin ligands in biomaterial design, to promote what is called the "adhesive crosstalk." First, the structure and function of cadherins and their role in eliciting mechanotransductive processes, by themselves or in combination with integrin mechanosensing, are introduced. Then, biomaterials that mimic cell-cell interactions, and recent applications to get insights in fundamental biology and tissue engineering, are critically discussed.
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Affiliation(s)
- Eva Barcelona‐Estaje
- Centre for the Cellular Microenvironment University of Glasgow Glasgow G12 8QQ UK
| | - Matthew J. Dalby
- Centre for the Cellular Microenvironment University of Glasgow Glasgow G12 8QQ UK
| | - Marco Cantini
- Centre for the Cellular Microenvironment University of Glasgow Glasgow G12 8QQ UK
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13
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De Luca E, Perrelli A, Swamy H, Nitti M, Passalacqua M, Furfaro AL, Salzano AM, Scaloni A, Glading AJ, Retta SF. Protein kinase Cα regulates the nucleocytoplasmic shuttling of KRIT1. J Cell Sci 2021; 134:jcs250217. [PMID: 33443102 PMCID: PMC7875496 DOI: 10.1242/jcs.250217] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 12/15/2020] [Indexed: 12/16/2022] Open
Abstract
KRIT1 is a scaffolding protein that regulates multiple molecular mechanisms, including cell-cell and cell-matrix adhesion, and redox homeostasis and signaling. However, rather little is known about how KRIT1 is itself regulated. KRIT1 is found in both the cytoplasm and the nucleus, yet the upstream signaling proteins and mechanisms that regulate KRIT1 nucleocytoplasmic shuttling are not well understood. Here, we identify a key role for protein kinase C (PKC) in this process. In particular, we found that PKC activation promotes the redox-dependent cytoplasmic localization of KRIT1, whereas inhibition of PKC or treatment with the antioxidant N-acetylcysteine leads to KRIT1 nuclear accumulation. Moreover, we demonstrated that the N-terminal region of KRIT1 is crucial for the ability of PKC to regulate KRIT1 nucleocytoplasmic shuttling, and may be a target for PKC-dependent regulatory phosphorylation events. Finally, we found that silencing of PKCα, but not PKCδ, inhibits phorbol 12-myristate 13-acetate (PMA)-induced cytoplasmic enrichment of KRIT1, suggesting a major role for PKCα in regulating KRIT1 nucleocytoplasmic shuttling. Overall, our findings identify PKCα as a novel regulator of KRIT1 subcellular compartmentalization, thus shedding new light on the physiopathological functions of this protein.
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Affiliation(s)
- Elisa De Luca
- Department of Clinical and Biological Sciences, University of Torino, 10043 Orbassano, Torino, Italy
- CCM Italia Research Network, National Coordination Center at the Department of Clinical and Biological Sciences, University of Torino, 10043 Orbassano, Torino, Italy
- Center for Biomolecular Nanotechnologies, Istituto Italiano di Tecnologia, 73010 Arnesano, Lecce, Italy
| | - Andrea Perrelli
- Department of Clinical and Biological Sciences, University of Torino, 10043 Orbassano, Torino, Italy
- CCM Italia Research Network, National Coordination Center at the Department of Clinical and Biological Sciences, University of Torino, 10043 Orbassano, Torino, Italy
| | - Harsha Swamy
- Department of Pharmacology and Physiology, University of Rochester, Rochester, NY 14642, USA
| | - Mariapaola Nitti
- Department of Experimental Medicine, University of Genoa, 16132 Genova, Italy
| | - Mario Passalacqua
- Department of Experimental Medicine, University of Genoa, 16132 Genova, Italy
| | - Anna Lisa Furfaro
- Department of Experimental Medicine, University of Genoa, 16132 Genova, Italy
| | - Anna Maria Salzano
- Proteomics & Mass Spectrometry Laboratory, ISPAAM, National Research Council, 80147 Napoli, Italy
| | - Andrea Scaloni
- Proteomics & Mass Spectrometry Laboratory, ISPAAM, National Research Council, 80147 Napoli, Italy
| | - Angela J Glading
- Department of Pharmacology and Physiology, University of Rochester, Rochester, NY 14642, USA
| | - Saverio Francesco Retta
- Department of Clinical and Biological Sciences, University of Torino, 10043 Orbassano, Torino, Italy
- CCM Italia Research Network, National Coordination Center at the Department of Clinical and Biological Sciences, University of Torino, 10043 Orbassano, Torino, Italy
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14
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The role of contextual signal TGF-β1 inducer of epithelial mesenchymal transition in metastatic lung adenocarcinoma patients with brain metastases: an update on its pathological significance and therapeutic potential. Contemp Oncol (Pozn) 2019; 23:187-194. [PMID: 31992949 PMCID: PMC6978756 DOI: 10.5114/wo.2019.91543] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Accepted: 11/04/2019] [Indexed: 02/07/2023] Open
Abstract
Lung adenocarcinoma (LA) is the most common cause of cancer-related death worldwide. Despite the advances over last decade in new targeted therapies, cancer genetics, diagnostics, staging, and surgical techniques as well as new chemotherapy and radiotherapy protocols, the death rate from LA remains high. The tumour microenvironment is composed of several cytokines, one of which is transforming growth factor β1 (TGF-β1), which modulates and mediates the expression of epithelial-mesenchymal transition (EMT), correlated with invasive growth in LAs, and exhibits its pleiotropic effects through binding to transmembrane receptors TβR-1 (also termed activin receptor-like kinases – ALKs) and TβR-2. Accordingly, there is an urgent need to elucidate the molecular mechanisms associated with the tumoural spreading process and therapeutic resistance of this serious pathology. In this review, we briefly discuss the current role of contextual signal TGF-β1 inducer of epithelial mesenchymal transition in metastatic lung adenocarcinoma patients with brain metastases, and give an overview of our current mechanistic understanding of the TGF-β1-related pathways in brain metastases progression, TGF-β1 pathway inhibitors that could be used for clinical treatment, and examination of models used to study these processes. Finally, we summarise the current progress in the therapeutic approaches targeting TGF-β1.
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15
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Zhou B, Xu J, Chen Y, Gao S, Feng X, Lu X. miR-200b/c-RAP1B axis represses tumorigenesis and malignant progression of papillary thyroid carcinoma through inhibiting the NF-κB/Twist1 pathway. Exp Cell Res 2019; 387:111785. [PMID: 31877303 DOI: 10.1016/j.yexcr.2019.111785] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 12/13/2019] [Accepted: 12/18/2019] [Indexed: 12/17/2022]
Abstract
Papillary thyroid carcinoma (PTC) is a common endocrine malignancy with an increasing occurrence and recurrence. MicroRNAs (miRNAs) have been widely acknowledged to be participated in human cancers. However, how these miRNAs exert roles and potential mechanisms in PTC regulatory networks is still lacking. The purpose of our study lies in discovering the regulatory basis of miR-200b/c and Rap1b for PTC tumorigenesis and malignant progression, as well as the underlying molecular mechanisms. Herein, miR-200b/c expression was sharply dropped and Rap1b expression was up-regulated in PTC cells and tissues samples when compared to normal thyroid epithelial cells and normal tissues. miR-200b/c targeted Rap1 directly and negatively regulated its expression. miR-200b/c overexpression suppressed proliferative, colony forming, migratory and invasive capabilities and EMT as well as elevated apoptosis of PTC cells through inhibiting Rap1b. Furthermore, xenograft experiments showed miR-200b/c overexpression constrained growth of PTC xenograft and EMT. miR-200b/c inhibited NF-κB/Twist1 signals via regulating the Rap1b expression in cells and animal models. Taken together, our study suggested that upregulation of miR-200b/c-RAP1B axis constrained PTC cell proliferation, invasion, migration and EMT. Also, the upregulation of miR-200b/c-RAP1B leaded to elevated apoptosis through inhibiting the NF-κB/Twist1 pathway, thus inhibiting PTC tumorigenesis and malignant progression.
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Affiliation(s)
- Bo Zhou
- Department of General Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, PR China; Department of Oncology Surgery, The First Affiliated Hospital and College of Clinical Medicine of Henan University of Science and Technology, Luoyang, 471003, Henan, PR China
| | - Jing Xu
- Department of Gynaecology and Obstetrics, The Third Affiliated Hospital of Henan University of Science and Technology, Luoyang, 471003, Henan, PR China
| | - Ye Chen
- Department of Oncology Surgery, The First Affiliated Hospital and College of Clinical Medicine of Henan University of Science and Technology, Luoyang, 471003, Henan, PR China
| | - Shegan Gao
- Department of Oncology Surgery, The First Affiliated Hospital and College of Clinical Medicine of Henan University of Science and Technology, Luoyang, 471003, Henan, PR China
| | - Xiaoshan Feng
- Department of Oncology Surgery, The First Affiliated Hospital and College of Clinical Medicine of Henan University of Science and Technology, Luoyang, 471003, Henan, PR China
| | - Xiubo Lu
- Department of General Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, PR China.
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16
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Young BM, Shankar K, Tho CK, Pellegrino AR, Heise RL. Laminin-driven Epac/Rap1 regulation of epithelial barriers on decellularized matrix. Acta Biomater 2019; 100:223-234. [PMID: 31593773 DOI: 10.1016/j.actbio.2019.10.009] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Revised: 10/03/2019] [Accepted: 10/03/2019] [Indexed: 12/28/2022]
Abstract
Decellularized tissues offer a unique tool for developing regenerative biomaterials or in vitro platforms for the study of cell-extracellular matrix (ECM) interactions. One main challenge associated with decellularized lung tissue is that ECM components can be stripped away or altered by the detergents used to remove cellular debris. Without characterizing the composition of lung decellularized ECM (dECM) and the cellular response caused by the altered composition, it is difficult to utilize dECM for regeneration and specifically, engineering the complexities of the alveolar-capillary barrier. This study takes steps towards uncovering if dECM must be enhanced with lost ECM proteins to achieve proper epithelial barrier formation. To achieve this, the epithelial barrier function was assessed on dECM coatings with and without the systematic addition of several key basement membrane proteins. After comparing barrier function on collagen I, fibronectin, laminin, and dECM in varying combinations as an in vitro coating, the alveolar epithelium exhibited superior barrier function when dECM was supplemented with laminin as evidenced by trans-epithelial electrical resistance (TEER) and permeability assays. Increased barrier resistance with laminin addition was associated with upregulation of Claudin-18, E-cadherin, and junction adhesion molecule (JAM)-A, and stabilization of zonula occludens (ZO)-1 at junction complexes. The Epac/Rap1 pathway was observed to play a role in the ECM-mediated barrier function determined by protein expression and Epac inhibition. These findings revealed potential ECM coatings and molecular therapeutic targets for improved regeneration with decellularized scaffolds. STATEMENT OF SIGNIFICANCE: Efforts to produce a transplantable organ-scale biomaterial for lung regeneration has not been entirely successful to date, due to incomplete cell-cell junction formation, ultimately leading to severe edema in vivo. To fully understand the process of alveolar junction formation on ECM-derived biomaterials, this research has characterized and tailored decellularized ECM (dECM) to mitigate reductions in barrier strength or cell attachment caused by abnormal ECM compositions or detergent damage to dECM. These results indicate that laminin-driven Epac signaling plays a vital role in the stabilization of the alveolar barrier. Addition of laminin or Epac agonists during alveolar regeneration can reduce epithelial permeability within bioengineered lungs.
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Affiliation(s)
- Bethany M Young
- Department of Biomedical Engineering, Virginia Commonwealth University, 800 E. Leigh St, Room 1071, Richmond, VA 23219, United States
| | - Keerthana Shankar
- Department of Biomedical Engineering, Virginia Commonwealth University, 800 E. Leigh St, Room 1071, Richmond, VA 23219, United States
| | - Cindy K Tho
- Department of Biomedical Engineering, Virginia Commonwealth University, 800 E. Leigh St, Room 1071, Richmond, VA 23219, United States
| | - Amanda R Pellegrino
- Department of Biomedical Engineering and Nursing, Duquesne University, 600 Forbes Ave, Pittsburg, Pennsylvania 15282, United States
| | - Rebecca L Heise
- Department of Biomedical Engineering, Virginia Commonwealth University, 800 E. Leigh St, Room 1071, Richmond, VA 23219, United States; Department of Physiology and Biophysics, Virginia Commonwealth University School of Medicine, 1101 East Marshall St, Richmond, Virginia 23298, United States.
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17
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Zou T, Liu J, She L, Chen J, Zhu T, Yin J, Li X, Li X, Zhou H, Liu Z. A perspective profile of ADCY1 in cAMP signaling with drug-resistance in lung cancer. J Cancer 2019; 10:6848-6857. [PMID: 31839819 PMCID: PMC6909948 DOI: 10.7150/jca.36614] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2019] [Accepted: 08/26/2019] [Indexed: 12/11/2022] Open
Abstract
Adenylate cyclase 1 (ADCY1 or AC1) is a member of ADCY superfamily and was primarily found to be expressed in the brain. ADCY1 is responsible for catalyzing ATP to cyclic AMP (cAMP). As a secondary messenger, cAMP can regulate plenty of cellular activities. cAMP can perform its regulation in cellular transport through the binding to cAMP dependent protein kinases (PKAs), cAMP-activated guanine exchange factors (EPACs) and cyclic nucleotide-gated channels functioning in transduction of sensory signals (CNGs). Lung cancer is one of the leading factors of cancer-related death worldwide. Platinum-based chemotherapy is the first-line treatment for advanced lung cancer patients. In addition, surgical treatment, radiation treatment, and molecular targeted therapy are also therapeutic options for lung cancer patients in clinical settings. However, drug resistance and toxicity are the major obstacles that affect chemotherapy outcome and prognosis of lung cancer patients. And the therapeutic efficiency and adverse effects are varying with each individual. In recent years, investigations based on genetic sequencing have revealed the emerging role of ADCY1 mutations in affecting drug efficiency in various cancers such as lung cancer, esophageal cancer and colorectal cancer. The potential function of ADCY1 in chemotherapy resistance is of great importance to be noticed and investigated.
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Affiliation(s)
- Ting Zou
- National Institution of Drug Clinical Trial, Xiangya Hospital, Central South University, Changsha, Hunan, P.R.China
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, Hunan, P.R.China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, P.R.China
| | - Junyan Liu
- Department of Orthopaedics, The First Affiliated Hospital of the University of South China, Hengyang, Hunan, P.R.China
| | - Li She
- Department of Otolaryngology Head and Neck Surgery, Xiangya Hospital, Central South University
- Otolaryngology Major Disease Research Key Laboratory of Hunan Province
| | - Juan Chen
- Changsha, Hunan, P.R.China. Department of pharmacy, Xiangya hospital, Central South University, Changsha, Hunan, P.R.China
| | - Tao Zhu
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, Hunan, P.R.China
| | - Jiye Yin
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, Hunan, P.R.China
| | - Xi Li
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, Hunan, P.R.China
| | - Xiangping Li
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, Hunan, P.R.China
| | - Honghao Zhou
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, Hunan, P.R.China
| | - Zhaoqian Liu
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, Hunan, P.R.China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, P.R.China
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18
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van Dijk IA, Veerman ECI, Reits EAJ, Bolscher JGM, Stap J. Salivary peptide histatin 1 mediated cell adhesion: a possible role in mesenchymal-epithelial transition and in pathologies. Biol Chem 2019; 399:1409-1419. [PMID: 30138105 DOI: 10.1515/hsz-2018-0246] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Accepted: 07/31/2018] [Indexed: 12/21/2022]
Abstract
Histatins are histidine-rich peptides present in the saliva of humans and higher primates and have been implicated in the protection of the oral cavity. Histatin 1 is one of the most abundant histatins and recent reports show that it has a stimulating effect on cellular adherence, thereby suggesting a role in maintaining the quality of the epithelial barrier and stimulating mesenchymal-to-epithelial transition. Here we summarize these findings and discuss them in the context of previous reports. The recent findings also provide new insights in the physiological functions of histatin 1, which are discussed here. Furthermore, we put forward a possible role of histatin 1 in various pathologies and its potential function in clinical applications.
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Affiliation(s)
- Irene A van Dijk
- Department of Medical Biology, Academic Medical Center, University of Amsterdam, Meibergdreef 15, NL-1105 AZ Amsterdam, The Netherlands
| | - Enno C I Veerman
- Department of Oral Biochemistry, Academic Centre for Dentistry Amsterdam, University of Amsterdam and VU University Amsterdam, Gustav Mahlerlaan 3004, NL-1081 AL Amsterdam, The Netherlands
| | - Eric A J Reits
- Department of Oral Biochemistry, Academic Centre for Dentistry Amsterdam, University of Amsterdam and VU University Amsterdam, Gustav Mahlerlaan 3004, NL-1081 AL Amsterdam, The Netherlands
| | - Jan G M Bolscher
- Department of Oral Biochemistry, Academic Centre for Dentistry Amsterdam, University of Amsterdam and VU University Amsterdam, Gustav Mahlerlaan 3004, NL-1081 AL Amsterdam, The Netherlands
| | - Jan Stap
- Department of Medical Biology, Academic Medical Center, University of Amsterdam, Meibergdreef 15, NL-1105 AZ Amsterdam, The Netherlands
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19
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Dlugos CP, Picciotto C, Lepa C, Krakow M, Stöber A, Eddy ML, Weide T, Jeibmann A, P Krahn M, Van Marck V, Klingauf J, Ricker A, Wedlich-Söldner R, Pavenstädt H, Klämbt C, George B. Nephrin Signaling Results in Integrin β1 Activation. J Am Soc Nephrol 2019; 30:1006-1019. [PMID: 31097607 DOI: 10.1681/asn.2018040362] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2018] [Accepted: 03/18/2019] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Patients with certain mutations in the gene encoding the slit diaphragm protein Nephrin fail to develop functional slit diaphragms and display severe proteinuria. Many adult-onset glomerulopathies also feature alterations in Nephrin expression and function. Nephrin signals from the podocyte slit diaphragm to the Actin cytoskeleton by recruiting proteins that can interact with C3G, a guanine nucleotide exchange factor of the small GTPase Rap1. Because Rap activity affects formation of focal adhesions, we hypothesized that Nephrin transmits signals to the Integrin receptor complex, which mediates podocyte adhesion to the extracellular matrix. METHODS To investigate Nephrin's role in transmitting signals to the Integrin receptor complex, we conducted genetic studies in Drosophila nephrocytes and validated findings from Drosophila in a cultured human podocyte model. RESULTS Drosophila nephrocytes form a slit diaphragm-like filtration barrier and express the Nephrin ortholog Sticks and stones (Sns). A genetic screen identified c3g as necessary for nephrocyte function. In vivo, nephrocyte-specific gene silencing of sns or c3g compromised nephrocyte filtration and caused nephrocyte diaphragm defects. Nephrocytes with impaired Sns or C3G expression displayed an altered localization of Integrin and the Integrin-associated protein Talin. Furthermore, gene silencing of c3g partly rescued nephrocyte diaphragm defects of an sns overexpression phenotype, pointing to genetic interaction of sns and c3g in nephrocytes. We also found that activated Nephrin recruited phosphorylated C3G and resulted in activation of Integrin β1 in cultured podocytes. CONCLUSIONS Our findings suggest that Nephrin can mediate a signaling pathway that results in activation of Integrin β1 at focal adhesions, which may affect podocyte attachment to the extracellular matrix.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | - Christian Klämbt
- Neurobiology, Westfälische-Wilhelms University Münster, Münster, Germany
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20
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Lin JH, Lee WJ, Wu HC, Wu CH, Chen LC, Huang CC, Chang HL, Cheng TC, Chang HW, Ho CT, Tu SH, Ho YS. Small G protein signalling modulator 2 (SGSM2) is involved in oestrogen receptor-positive breast cancer metastasis through enhancement of migratory cell adhesion via interaction with E-cadherin. Cell Adh Migr 2019; 13:120-137. [PMID: 30744493 PMCID: PMC6527379 DOI: 10.1080/19336918.2019.1568139] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The function of small G protein signalling modulators (SGSM1/2/3) in cancer remains unknown. Our findings demonstrated that SGSM2 is a plasma membrane protein that strongly interacted with E-cadherin/β-catenin. SGSM2 downregulation enhanced the phosphorylation of focal adhesion kinase (FAK; Y576/577), decreased the expression of epithelial markers such as E-cadherin, β-catenin, and Paxillin, and increased the expression of Snail and Twist-1, which reduced cell adhesion and promoted cancer cell migration. Oestrogen and fibronectin treatment was found to promote the colocalization of SGSM2 at the leading edge with phospho-FAK (Y397). The BioGRID database showed that SGSM2 potentially interacts with cytoskeleton remodelling and cell-cell junction proteins. These evidences suggest that SGSM2 plays a role in modulating cell adhesion and cytoskeleton dynamics during cancer migration.
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Affiliation(s)
- Juo-Han Lin
- a Ph.D. Program for Cancer Molecular Biology and Drug Discovery, College of Medical Science and Technology , Taipei Medical University and Academia Sinica , Taipei , Taiwan
| | - Wen-Jui Lee
- b Ph.D. Program for Neural Regenerative Medicine, College of Medical Science and Technology , Taipei Medical University and National Health Research Institutes , Taipei , Taiwan
| | - Han-Chung Wu
- c Institute of Cellular and Organismic Biology , Academia Sinica , Taipei , Taiwan
| | - Chih-Hsiung Wu
- d Department of Surgery , School of Medicine, College of Medicine, Taipei Medical University , Taipei , Taiwan.,e Department of General Surgery , En Chu Kong Hospital , New Taipei City , Taiwan
| | - Li-Ching Chen
- f Breast Medical Center , Taipei Medical University Hospital , Taipei , Taiwan.,g Taipei Cancer Center , Taipei Medical University , Taipei , Taiwan.,h TMU Research Center of Cancer Translational Medicine , Taipei Medical University , Taipei , Taiwan
| | - Chi-Cheng Huang
- d Department of Surgery , School of Medicine, College of Medicine, Taipei Medical University , Taipei , Taiwan.,i School of Medicine, College of Medicine , Fu-Jen Catholic University , New Taipei City , Taiwan.,j Department of Surgery , Fu-Jen Catholic University Hospital , New Taipei City , Taiwan
| | - Hang-Lung Chang
- e Department of General Surgery , En Chu Kong Hospital , New Taipei City , Taiwan
| | - Tzu-Chun Cheng
- k School of Medical Laboratory Science and Biotechnology, College of Medical Science and Technology , Taipei Medical University , Taipei , Taiwan
| | - Hui-Wen Chang
- l Department of Laboratory Medicine , Taipei Medical University Hospital , Taipei , Taiwan
| | - Chi-Tang Ho
- m Department of Food Science , Rutgers University , New Brunswick , NJ , USA
| | - Shih-Hsin Tu
- d Department of Surgery , School of Medicine, College of Medicine, Taipei Medical University , Taipei , Taiwan.,f Breast Medical Center , Taipei Medical University Hospital , Taipei , Taiwan.,g Taipei Cancer Center , Taipei Medical University , Taipei , Taiwan
| | - Yuan-Soon Ho
- h TMU Research Center of Cancer Translational Medicine , Taipei Medical University , Taipei , Taiwan.,k School of Medical Laboratory Science and Biotechnology, College of Medical Science and Technology , Taipei Medical University , Taipei , Taiwan.,l Department of Laboratory Medicine , Taipei Medical University Hospital , Taipei , Taiwan.,n Graduate Institute of Medical Sciences, College of Medicine , Taipei Medical University , Taipei , Taiwan
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21
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Wilson BJ, Allen JL, Caswell PT. Vesicle trafficking pathways that direct cell migration in 3D matrices and in vivo. Traffic 2018; 19:899-909. [PMID: 30054969 PMCID: PMC6282850 DOI: 10.1111/tra.12605] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2018] [Revised: 07/20/2018] [Accepted: 07/23/2018] [Indexed: 12/13/2022]
Abstract
Cell migration is a vital process in development and disease, and while the mechanisms that control motility are relatively well understood on two-dimensional surfaces, the control of cell migration in three dimensions (3D) and in vivo has only recently begun to be understood. Vesicle trafficking pathways have emerged as a key regulatory element in migration and invasion, with the endocytosis and recycling of cell surface cargos, including growth factor and chemokine receptors, adhesion receptors and membrane-associated proteases, being of major importance. We highlight recent advances in our understanding of how endocytic trafficking controls the availability and local activity of these cargoes to influence the movement of cells in 3D matrix and in developing organisms. In particular, we discuss how endocytic trafficking of different receptor classes spatially restricts signals and activity, usually to the leading edge of invasive cells.
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Affiliation(s)
- Beverley J. Wilson
- Wellcome Trust Centre for Cell‐Matrix Research, Faculty of Biology, Medicine and HealthUniversity of Manchester, Manchester Academic Health Science CentreManchesterUK
| | - Jennifer L. Allen
- Wellcome Trust Centre for Cell‐Matrix Research, Faculty of Biology, Medicine and HealthUniversity of Manchester, Manchester Academic Health Science CentreManchesterUK
| | - Patrick T. Caswell
- Wellcome Trust Centre for Cell‐Matrix Research, Faculty of Biology, Medicine and HealthUniversity of Manchester, Manchester Academic Health Science CentreManchesterUK
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The Many Faces of Rap1 GTPase. Int J Mol Sci 2018; 19:ijms19102848. [PMID: 30241315 PMCID: PMC6212855 DOI: 10.3390/ijms19102848] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2018] [Revised: 09/16/2018] [Accepted: 09/17/2018] [Indexed: 12/12/2022] Open
Abstract
This review addresses the issue of the numerous roles played by Rap1 GTPase (guanosine triphosphatase) in different cell types, in terms of both physiology and pathology. It is one among a myriad of small G proteins with endogenous GTP-hydrolyzing activity that is considerably stimulated by posttranslational modifications (geranylgeranylation) or guanine nucleotide exchange factors (GEFs), and inhibited by GTPase-activating proteins (GAPs). Rap1 is a ubiquitous protein that plays an essential role in the control of metabolic processes, such as signal transduction from plasma membrane receptors, cytoskeleton rearrangements necessary for cell division, intracellular and substratum adhesion, as well as cell motility, which is needed for extravasation or fusion. We present several examples of how Rap1 affects cells and organs, pointing to possible molecular manipulations that could have application in the therapy of several diseases.
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Shah S, Brock EJ, Jackson RM, Ji K, Boerner JL, Sloane BF, Mattingly RR. Downregulation of Rap1Gap: A Switch from DCIS to Invasive Breast Carcinoma via ERK/MAPK Activation. Neoplasia 2018; 20:951-963. [PMID: 30144784 PMCID: PMC6106701 DOI: 10.1016/j.neo.2018.07.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Revised: 07/06/2018] [Accepted: 07/12/2018] [Indexed: 01/13/2023] Open
Abstract
Diagnosis of breast ductal carcinoma in situ (DCIS) presents a challenge since we cannot yet distinguish those cases that would remain indolent and not require aggressive treatment from cases that may progress to invasive ductal cancer (IDC). The purpose of this study is to determine the role of Rap1Gap, a GTPase activating protein, in the progression from DCIS to IDC. Immunohistochemistry (IHC) analysis of samples from breast cancer patients shows an increase in Rap1Gap expression in DCIS compared to normal breast tissue and IDCs. In order to study the mechanisms of malignant progression, we employed an in vitro three-dimensional (3D) model that more accurately recapitulates both structural and functional cues of breast tissue. Immunoblotting results show that Rap1Gap levels in MCF10.Ca1D cells (a model of invasive carcinoma) are reduced compared to those in MCF10.DCIS (a model of DCIS). Retroviral silencing of Rap1Gap in MCF10.DCIS cells activated extracellular regulated kinase (ERK) mitogen-activated protein kinase (MAPK), induced extensive cytoskeletal reorganization and acquisition of mesenchymal phenotype, and enhanced invasion. Enforced reexpression of Rap1Gap in MCF10.DCIS-Rap1GapshRNA cells reduced Rap1 activity and reversed the mesenchymal phenotype. Similarly, introduction of dominant negative Rap1A mutant (Rap1A-N17) in DCIS-Rap1Gap shRNA cells caused a reversion to nonmalignant phenotype. Conversely, expression of constitutively active Rap1A mutant (Rap1A-V12) in noninvasive MCF10.DCIS cells led to phenotypic changes that were reminiscent of Rap1Gap knockdown. Thus, reduction of Rap1Gap in DCIS is a potential switch for progression to an invasive phenotype. The Graphical Abstract summarizes these findings.
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Affiliation(s)
- Seema Shah
- Department of Oncology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Ethan J Brock
- Department of Oncology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Ryan M Jackson
- Department of Pharmacology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Kyungmin Ji
- Department of Pharmacology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Julie L Boerner
- Department of Oncology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Bonnie F Sloane
- Department of Oncology, Wayne State University School of Medicine, Detroit, MI, USA; Department of Pharmacology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Raymond R Mattingly
- Department of Oncology, Wayne State University School of Medicine, Detroit, MI, USA; Department of Pharmacology, Wayne State University School of Medicine, Detroit, MI, USA.
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24
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Rab34 regulates adhesion, migration, and invasion of breast cancer cells. Oncogene 2018; 37:3698-3714. [PMID: 29622794 DOI: 10.1038/s41388-018-0202-7] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Revised: 01/07/2018] [Accepted: 02/03/2018] [Indexed: 02/06/2023]
Abstract
The small GTPase Rab34 regulates spatial distribution of the lysosomes, secretion, and macropinocytosis. In this study, we found that Rab34 is over-expressed in aggressive breast cancer cells, implying a potential role of Rab34 in breast cancer. Silencing Rab34 by shRNA inhibits cell migration, invasion, and adhesion of breast cancer cells. Rab34 specifically binds to the cytoplasmic tail of integrin β3, and depletion of Rab34 promotes the degradation of integrin β3. Interestingly, EGF induces the translocation of Rab34 to the membrane ruffle, which is greatly enhanced by the expression of Src kinase. Accordingly, Rab34 is tyrosine phosphorylated by Src at Y247 residue. A mutant mimicking phosphorylated form of Rab34 (Rab34Y247D) promotes cell migration and invasion. Importantly, the tyrosine phosphorylation of Rab34 is inhibited in cells in suspension, and increased with the cells re-adhesion. In addition, Rab34Y247D promotes cell adhesion, and enhances integrin β3 endocytosis and recycling. The results uncover a role of Rab34 in migration and invasion of breast cancer cells and its involvement in cancer metastasis, and provide a novel mechanism of tyrosine phosphorylation of Rab34 in regulating cell migration, invasion, and adhesion through modulating the endocytosis, stability, and recycling of integrin β3.
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25
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Nath SC, Tokura T, Kim M, Kino‐oka M. Botulinum hemagglutinin‐mediated in situ break‐up of human induced pluripotent stem cell aggregates for high‐density suspension culture. Biotechnol Bioeng 2018; 115:910-920. [DOI: 10.1002/bit.26526] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2017] [Revised: 12/04/2017] [Accepted: 12/22/2017] [Indexed: 12/24/2022]
Affiliation(s)
- Suman C. Nath
- Department of BiotechnologyGraduate School of EngineeringOsaka UniversitySuitaOsakaJapan
| | - Tomohiro Tokura
- Department of BiotechnologyGraduate School of EngineeringOsaka UniversitySuitaOsakaJapan
- Fujimori Kogyo Co. Ltd.ShinjukuTokyoJapan
| | - Mee‐Hae Kim
- Department of BiotechnologyGraduate School of EngineeringOsaka UniversitySuitaOsakaJapan
| | - Masahiro Kino‐oka
- Department of BiotechnologyGraduate School of EngineeringOsaka UniversitySuitaOsakaJapan
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26
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Venhuizen JH, Zegers MM. Making Heads or Tails of It: Cell-Cell Adhesion in Cellular and Supracellular Polarity in Collective Migration. Cold Spring Harb Perspect Biol 2017; 9:cshperspect.a027854. [PMID: 28246177 DOI: 10.1101/cshperspect.a027854] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Collective cell migration is paramount to morphogenesis and contributes to the pathogenesis of cancer. To migrate directionally and reach their site of destination, migrating cells must distinguish a front and a rear. In addition to polarizing individually, cell-cell interactions in collectively migrating cells give rise to a higher order of polarity, which allows them to move as a supracellular unit. Rather than just conferring adhesion, emerging evidence indicates that cadherin-based adherens junctions intrinsically polarize the cluster and relay mechanical signals to establish both intracellular and supracellular polarity. In this review, we discuss the various functions of adherens junctions in polarity of migrating cohorts.
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Affiliation(s)
- Jan-Hendrik Venhuizen
- Department of Cell Biology, Radboud Institute for Molecular Life Sciences, 6525 GA Nijmegen, The Netherlands
| | - Mirjam M Zegers
- Department of Cell Biology, Radboud Institute for Molecular Life Sciences, 6525 GA Nijmegen, The Netherlands
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27
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Menezes L, Fioravanti M, Oliveira F, Silva M, Franco L, Sales T, Andrascko M, Guimarães L, Miguel M, Araújo E. Histological evaluation and E-cadherin and β-catenin expression in kidney of dogs submitted to renal ischemia and reperfusion after chlorpromazine administration. ARQ BRAS MED VET ZOO 2017. [DOI: 10.1590/1678-4162-9395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
ABSTRACT Renal ischemia can be associated with some urological procedures, such as renovascular surgery or kidney transplantation, that are often followed by acute renal failure. The aim of this study was to verify the E-cadherin and β-catenin localization in canine kidney in different times of renal ischemia and reperfusion after chlorpromazine application. Twelve dogs were randomly distributed equally into two groups. GroupA with ischemia and reperfusion without chlorpromazine and groupB with ischemia and reperfusion treated by chlorpromazine. GroupB received intravenous chlorpromazine, 15 min before the artery obstruction, which lasted 1 hour. After this period, the clamps in the renal arteries were released and the organ remained in reperfusion for 2 hours. In each group, anti-E-cadherin and anti-β-catenin antibodies were made in six tissue samples from renal parenchyma. E-cadherin and β-catenin are differentially expressed in segments from cortex and medulla in dog’s kidneys and the use of chlorpromazine did not alter the expression of both proteins. Occlusion of the left renal artery in dogs causes morphological alterations mainly in proximal convoluted tubules, beginning 30min after the start of ischemia and being aggravated after two hours of reperfusion. These results reveal that chlorpromazine did not change kidneys’ histological aspect nor E-cadherin and β-catenin expression.
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Exploring the Role of RGD-Recognizing Integrins in Cancer. Cancers (Basel) 2017; 9:cancers9090116. [PMID: 28869579 PMCID: PMC5615331 DOI: 10.3390/cancers9090116] [Citation(s) in RCA: 282] [Impact Index Per Article: 40.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Revised: 08/28/2017] [Accepted: 08/31/2017] [Indexed: 12/18/2022] Open
Abstract
Integrins are key regulators of communication between cells and with their microenvironment. Eight members of the integrin superfamily recognize the tripeptide motif Arg-Gly-Asp (RGD) within extracelluar matrix (ECM) proteins. These integrins constitute an important subfamily and play a major role in cancer progression and metastasis via their tumor biological functions. Such transmembrane adhesion and signaling receptors are thus recognized as promising and well accessible targets for novel diagnostic and therapeutic applications for directly attacking cancer cells and their fatal microenvironment. Recently, specific small peptidic and peptidomimetic ligands as well as antibodies binding to distinct integrin subtypes have been developed and synthesized as new drug candidates for cancer treatment. Understanding the distinct functions and interplay of integrin subtypes is a prerequisite for selective intervention in integrin-mediated diseases. Integrin subtype-specific ligands labelled with radioisotopes or fluorescent molecules allows the characterization of the integrin patterns in vivo and later the medical intervention via subtype specific drugs. The coating of nanoparticles, larger proteins, or encapsulating agents by integrin ligands are being explored to guide cytotoxic reagents directly to the cancer cell surface. These ligands are currently under investigation in clinical studies for their efficacy in interference with tumor cell adhesion, migration/invasion, proliferation, signaling, and survival, opening new treatment approaches in personalized medicine.
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29
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Botulinum hemagglutinin-mediated selective removal of cells deviating from the undifferentiated state in hiPSC colonies. Sci Rep 2017; 7:93. [PMID: 28273902 PMCID: PMC5428320 DOI: 10.1038/s41598-017-00083-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Accepted: 01/31/2017] [Indexed: 01/05/2023] Open
Abstract
The undifferentiated state of human induced pluripotent stem cells (hiPSCs) depends on their cell–cell and cell–substrate adhesions. In this study, we report that exposure to botulinum hemagglutinin (HA), an E-cadherin function-blocking agent, selectively removed cells that deviated from the undifferentiated state in hiPSC colonies. After HA treatment, cell–cell adhesion was disrupted, deviated cells detached from colony centers, and dividing cells filled these spaces. Because E-cadherin-mediated adhesion was disrupted in undifferentiated cells, stress-fiber formation and focal adhesions were diminished; however, these were subsequently restored, and the cells retained expression of undifferentiated stem cell markers and their differentiation potential. In contrast, actin structures and focal adhesions were lost from deviated cells, and they subsequently died. In undifferentiated and deviated cells, the cadherin/integrin-regulator Rap1 was localized at cell–cell adhesions and in the cytoplasm, respectively. Concurrent HA and Rap1-inhibitor treatment accelerated the deviated-cell detachment and delayed the recovery of hiPSC morphology, but this effect was significantly attenuated by co-treatment with Rap1 activator. Thus, Rap1 regulated E-cadherin–integrin interplay in hiPSC colonies exhibiting deviation, while HA-mediated selective removal of these deviated cells helped maintain the undifferentiated state in the remaining hiPSCs.
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30
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Rap1GAP inhibits tumor progression in endometrial cancer. Biochem Biophys Res Commun 2017; 485:476-483. [PMID: 28196746 DOI: 10.1016/j.bbrc.2017.02.044] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2017] [Accepted: 02/07/2017] [Indexed: 01/04/2023]
Abstract
OBJECTIVE Endometrioid adenocarcinoma (EAC) is a common endometrial cancer with recent dramatic increases in incidence. Previous findings indicate that Rap1GAP acts as a tumor suppressor inhibiting Ras superfamily protein Rap1 in multiple aggressive carcinomas; however, Rap1GAP expression in EAC has not been investigated. In this study, the tumor suppressing activity of Rap1GAP in EAC was explored. METHODS EAC cell lines were used to examine Rap1GAP levels by real-time RT-PCR and western blotting and the effects of Rap1GAP on cancer cell invasion and migration. Rap1GAP expression was analyzed by immunohistochemical staining for Rap1GAP, E-cadherin in surgically resected tumors of 114 EAC patients scored according to EAC differentiation grade. Prognostic variables such as age, stage, grade, tumor size, and immunostaining for Rap1GAP, E-cadherin were evaluated using Cox regression multivariate analysis. RESULTS Low Rap1GAP expression was detected in poorly differentiated EAC cells. Rap1GAP deficiency significantly accelerated while Rap1 deficiency decreased cancer cell migration and invasion. Patients with higher Rap1GAP, E-cadherin, and especially combined Rap1GAP/E-cadherin levels had better overall survival than EAC patients with no or weak expression. In addition, Rap1GAP expression was an independent prognostic factor in EAC. CONCLUSIONS Inhibition of Rap1GAP expression increases EAC cell migration and invasion through upregulation of Rap1. Low expression of Rap1GAP correlates with poor EAC differentiation. Our findings suggest that Rap1GAP is an important tumor suppressor with high prognostic value in EAC.
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Abstract
Ras-associated protein-1 (Rap1), a small GTPase in the Ras-related protein family, is an important regulator of basic cellular functions (e.g., formation and control of cell adhesions and junctions), cellular migration, and polarization. Through its interaction with other proteins, Rap1 plays many roles during cell invasion and metastasis in different cancers. The basic function of Rap1 is straightforward; it acts as a switch during cellular signaling transduction and regulated by its binding to either guanosine triphosphate (GTP) or guanosine diphosphate (GDP). However, its remarkably diverse function is rendered by its interplay with a large number of distinct Rap guanine nucleotide exchange factors and Rap GTPase activating proteins. This review summarizes the mechanisms by which Rap1 signaling can regulate cell invasion and metastasis, focusing on its roles in integrin and cadherin regulation, Rho GTPase control, and matrix metalloproteinase expression.
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Affiliation(s)
- Yi-Lei Zhang
- Key Laboratory of Molecular Biophysics of Ministry of Education, School of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Ruo-Chen Wang
- Key Laboratory of Molecular Biophysics of Ministry of Education, School of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Ken Cheng
- Sun Yat-sen University, Guangzhou 510275, China
| | - Brian Z Ring
- Key Laboratory of Molecular Biophysics of Ministry of Education, School of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Li Su
- Key Laboratory of Molecular Biophysics of Ministry of Education, School of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China.,Research Institute of Huazhong University of Science and Technology in Shenzhen, Shenzhen 518063, China
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32
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The molecular effect of metastasis suppressors on Src signaling and tumorigenesis: new therapeutic targets. Oncotarget 2016; 6:35522-41. [PMID: 26431493 PMCID: PMC4742122 DOI: 10.18632/oncotarget.5849] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Accepted: 08/15/2015] [Indexed: 02/07/2023] Open
Abstract
A major problem for cancer patients is the metastasis of cancer cells from the primary tumor. This involves: (1) migration through the basement membrane; (2) dissemination via the circulatory system; and (3) invasion into a secondary site. Metastasis suppressors, by definition, inhibit metastasis at any step of the metastatic cascade. Notably, Src is a non-receptor, cytoplasmic, tyrosine kinase, which becomes aberrantly activated in many cancer-types following stimulation of plasma membrane receptors (e.g., receptor tyrosine kinases and integrins). There is evidence of a prominent role of Src in tumor progression-related events such as the epithelial–mesenchymal transition (EMT) and the development of metastasis. However, the precise molecular interactions of Src with metastasis suppressors remain unclear. Herein, we review known metastasis suppressors and summarize recent advances in understanding the mechanisms of how these proteins inhibit metastasis through modulation of Src. Particular emphasis is bestowed on the potent metastasis suppressor, N-myc downstream regulated gene 1 (NDRG1) and its interactions with the Src signaling cascade. Recent studies demonstrated a novel mechanism through which NDRG1 plays a significant role in regulating cancer cell migration by inhibiting Src activity. Moreover, we discuss the rationale for targeting metastasis suppressor genes as a sound therapeutic modality, and we review several examples from the literature where such strategies show promise. Collectively, this review summarizes the essential interactions of metastasis suppressors with Src and their effects on progression of cancer metastasis. Moreover, interesting unresolved issues regarding these proteins as well as their potential as therapeutic targets are also discussed.
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Retta SF, Glading AJ. Oxidative stress and inflammation in cerebral cavernous malformation disease pathogenesis: Two sides of the same coin. Int J Biochem Cell Biol 2016; 81:254-270. [PMID: 27639680 PMCID: PMC5155701 DOI: 10.1016/j.biocel.2016.09.011] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Revised: 09/08/2016] [Accepted: 09/13/2016] [Indexed: 12/14/2022]
Abstract
CCM proteins play pleiotropic roles in various redox-sensitive signaling pathways. CCM proteins modulate the crosstalk between redox signaling and autophagy that govern cell homeostasis and stress responses. Oxidative stress and inflammation are emerging as key focal determinants of CCM lesion formation, progression and severity. The pleiotropic functions of CCM proteins may prevent vascular dysfunctions triggered by local oxidative stress and inflammatory events. The distinct therapeutic compounds proposed so far for CCM disease share the ability to modulate redox signaling and autophagy.
Cerebral Cavernous Malformation (CCM) is a vascular disease of proven genetic origin, which may arise sporadically or is inherited as an autosomal dominant condition with incomplete penetrance and highly variable expressivity. CCM lesions exhibit a range of different phenotypes, including wide inter-individual differences in lesion number, size, and susceptibility to intracerebral hemorrhage (ICH). Lesions may remain asymptomatic or result in pathological conditions of various type and severity at any age, with symptoms ranging from recurrent headaches to severe neurological deficits, seizures, and stroke. To date there are no direct therapeutic approaches for CCM disease besides the surgical removal of accessible lesions. Novel pharmacological strategies are particularly needed to limit disease progression and severity and prevent de novo formation of CCM lesions in susceptible individuals. Useful insights into innovative approaches for CCM disease prevention and treatment are emerging from a growing understanding of the biological functions of the three known CCM proteins, CCM1/KRIT1, CCM2 and CCM3/PDCD10. In particular, accumulating evidence indicates that these proteins play major roles in distinct signaling pathways, including those involved in cellular responses to oxidative stress, inflammation and angiogenesis, pointing to pathophysiological mechanisms whereby the function of CCM proteins may be relevant in preventing vascular dysfunctions triggered by these events. Indeed, emerging findings demonstrate that the pleiotropic roles of CCM proteins reflect their critical capacity to modulate the fine-tuned crosstalk between redox signaling and autophagy that govern cell homeostasis and stress responses, providing a novel mechanistic scenario that reconciles both the multiple signaling pathways linked to CCM proteins and the distinct therapeutic approaches proposed so far. In addition, recent studies in CCM patient cohorts suggest that genetic susceptibility factors related to differences in vascular sensitivity to oxidative stress and inflammation contribute to inter-individual differences in CCM disease susceptibility and severity. This review discusses recent progress into the understanding of the molecular basis and mechanisms of CCM disease pathogenesis, with specific emphasis on the potential contribution of altered cell responses to oxidative stress and inflammatory events occurring locally in the microvascular environment, and consequent implications for the development of novel, safe, and effective preventive and therapeutic strategies.
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Affiliation(s)
- Saverio Francesco Retta
- Department of Clinical and Biological Sciences, School of Medicine and Surgery, University of Torino, Regione Gonzole 10, 10043 Orbassano, Torino, Italy; CCM Italia Research Network(1).
| | - Angela J Glading
- University of Rochester Medical Center, School of Medicine and Dentistry, 601 Elmwood Ave, 14642 Rochester, NY, USA.
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Horejs CM. Basement membrane fragments in the context of the epithelial-to-mesenchymal transition. Eur J Cell Biol 2016; 95:427-440. [PMID: 27397693 DOI: 10.1016/j.ejcb.2016.06.002] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Revised: 06/09/2016] [Accepted: 06/09/2016] [Indexed: 01/18/2023] Open
Abstract
The epithelial-to-mesenchymal transition (EMT) enables cells of epithelial phenotype to become motile and change to a migratory mesenchymal phenotype. EMT is known to be a fundamental requisite for tissue morphogenesis, and EMT-related pathways have been described in cancer metastasis and tissue fibrosis. Epithelial structures are marked by the presence of a sheet-like extracellular matrix, the basement membrane, which is assembled from two major proteins, laminin and collagen type IV. This specialized matrix is essential for tissue function and integrity, and provides an important barrier to the potential pathogenic migration of cells. The profound phenotypic transition in EMT involves the epithelial cells disrupting the basement membrane. Matrix metalloproteinases (MMPs) are known to cleave components of basement membranes, but MMP-basement membrane crosstalk during EMT in vivo is poorly understood. However, MMPs have been reported to play a role in EMT-related processes and a variety of basement membrane fragments have been shown to be released by specific MMPs in vitro and in vivo exhibiting distinct biological activities. This review discusses general considerations regarding the basement membrane in the context of EMT, a possible role for specific MMPs in EMT and highlights biologically active basement membrane fragments liberated by MMPs.
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Affiliation(s)
- Christine-Maria Horejs
- Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Scheeles vaeg 2, 17177 Stockholm, Sweden.
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35
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West JJ, Harris TJC. Cadherin Trafficking for Tissue Morphogenesis: Control and Consequences. Traffic 2016; 17:1233-1243. [DOI: 10.1111/tra.12407] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2016] [Revised: 04/20/2016] [Accepted: 04/20/2016] [Indexed: 12/27/2022]
Affiliation(s)
- Junior J. West
- Department of Cell & Systems Biology; University of Toronto; Toronto Ontario Canada
| | - Tony J. C. Harris
- Department of Cell & Systems Biology; University of Toronto; Toronto Ontario Canada
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Marchi S, Trapani E, Corricelli M, Goitre L, Pinton P, Retta SF. Beyond multiple mechanisms and a unique drug: Defective autophagy as pivotal player in cerebral cavernous malformation pathogenesis and implications for targeted therapies. Rare Dis 2016; 4:e1142640. [PMID: 27141412 PMCID: PMC4838318 DOI: 10.1080/21675511.2016.1142640] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Accepted: 01/11/2016] [Indexed: 12/22/2022] Open
Abstract
Cerebral Cavernous Malformation (CCM) is a major cerebrovascular disease of proven genetic origin affecting 0.3-0.5% of the general population. It is characterized by abnormally enlarged and leaky capillaries, which predispose to seizures, focal neurological deficits and intracerebral hemorrhage. Causative loss-of-function mutations have been identified in 3 genes, KRIT1 (CCM1), CCM2 and PDCD10 (CCM3). While providing new options for the development of pharmacological therapies, recent advances in knowledge of the functions of these genes have clearly indicated that they exert pleiotropic effects on several biological pathways. Recently, we found that defective autophagy is a common feature of loss-of-function mutations of the 3 known CCM genes, and underlies major phenotypic signatures of CCM disease, including endothelial-to-mesenchymal transition and enhanced ROS production, suggesting a unifying pathogenetic mechanism and reconciling the distinct therapeutic approaches proposed so far. In this invited review, we discuss autophagy as a possible unifying mechanism in CCM disease pathogenesis, and new perspectives and avenues of research for disease prevention and treatment, including novel potential drug repurposing and combination strategies, and identification of genetic risk factors as basis for development of personalized medicine approaches.
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Affiliation(s)
- Saverio Marchi
- Department of Morphology, Surgery and Experimental Medicine, Section of Pathology Oncology and Experimental Biology, University of Ferrara, Ferrara, Italy; CCM Italia Research Network; Italy
| | - Eliana Trapani
- CCM Italia Research Network; Italy; Department of Clinical and Biological Sciences, University of Torino, Torino, Italy
| | - Mariangela Corricelli
- Department of Morphology, Surgery and Experimental Medicine, Section of Pathology Oncology and Experimental Biology, University of Ferrara, Ferrara, Italy; CCM Italia Research Network; Italy
| | - Luca Goitre
- CCM Italia Research Network; Italy; Department of Clinical and Biological Sciences, University of Torino, Torino, Italy
| | - Paolo Pinton
- Department of Morphology, Surgery and Experimental Medicine, Section of Pathology Oncology and Experimental Biology, University of Ferrara, Ferrara, Italy; CCM Italia Research Network; Italy
| | - Saverio Francesco Retta
- CCM Italia Research Network; Italy; Department of Clinical and Biological Sciences, University of Torino, Torino, Italy
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Abstract
Tissue engineering of Schwann cells (SCs) can serve a number of purposes, such as in vitro SC-related disease modeling, treatment of peripheral nerve diseases or peripheral nerve injury, and, potentially, treatment of CNS diseases. SCs can be generated from autologous stem cells in vitro by recapitulating the various stages of in vivo neural crest formation and SC differentiation. In this review, we survey the cellular and molecular mechanisms underlying these in vivo processes. We then focus on the current in vitro strategies for generating SCs from two sources of pluripotent stem cells, namely embryonic stem cells (ESCs) and induced pluripotent stem cells (iPSCs). Different methods for SC engineering from ESCs and iPSCs are reviewed and suggestions are proposed for optimizing the existing protocols. Potential safety issues regarding the clinical application of iPSC-derived SCs are discussed as well. Lastly, we will address future aspects of SC engineering.
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38
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Interplay between cadherins and α2β1 integrin differentially regulates melanoma cell invasion. Br J Cancer 2015; 113:1445-53. [PMID: 26512877 PMCID: PMC4815890 DOI: 10.1038/bjc.2015.358] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2015] [Revised: 09/15/2015] [Accepted: 09/16/2015] [Indexed: 11/16/2022] Open
Abstract
Background: Malignant transformation of melanocytes frequently coincides with an alteration in the expression of cell–cell adhesion molecules (cadherins) and cell-extracellular matrix proteins (integrins). How these two adhesion systems interplay to impact on cell invasion remains to be described in melanoma. Methods: Cell adhesion networks were localised by immunofluorescence in human primary cutaneous melanoma, metastatic melanoma in the lymph nodes, and melanoma cell lines. The role of these cell adhesion networks was assessed both in vivo, by analysing their impact on tumour growth in mice, and in vitro, with the use of functional tests including cell aggregation and cell migration. Results: We found that α2β1 integrin associates with both E-cadherin and N-cadherin to form two adhesive networks, distinguishable by the interaction—or not—of α2β1 integrin with type I collagen. N-cadherin/α2β1 integrin and E-cadherin/α2β1 integrin networks differently participated towards tumour growth in mice. The N-cadherin/α2β1 integrin network showed specific involvement in melanoma cell invasion and migration towards type I collagen. On the other hand, the E-cadherin/α2β1 network regulated cell–cell adhesion. Conclusions: This suggests that different signalling environments can be generated, depending on the type and/or local concentration of cadherin present in the adhesion complex, which potentially leads to differential cell responses. Further clarification of how these adhesive networks are regulated is fundamental to understanding important physiological and pathological processes such as morphogenesis, wound healing, tumour invasion and metastasis.
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Qiu T, Li D, Li Z, Xu K, Qi X, Cen J, Chen Z. [The effect of up-regulated expression of Rap1GAP on the invasion ability of HL-60 cells in vitro and in vivo]. ZHONGHUA XUE YE XUE ZA ZHI = ZHONGHUA XUEYEXUE ZAZHI 2015; 36:570-4. [PMID: 26304080 PMCID: PMC7342645 DOI: 10.3760/cma.j.issn.0253-2727.2015.07.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To investigate the effect of up-regulation of Rap1GAP on the invasion ability of leukemic HL-60 cells in vitro, and to establish leukemia mouse model to verify the effects in vivo. METHODS Quantitative RT-PCR and Western blot methods were used to detect the expression of Rap1GAP in Venus/HL-60 (vehicle control) and Rap1GAP/HL-60 cells (R1 andR2). Transwell method was used to examine the invasion ability in vitro. Quantitative RT-PCR and gelatin zymograph were used to study the expression of MMP-2 and MMP-9. Four-week-old BALB/c nu/nu mice were pre-treated and inoculated with leukemic cells from different groups, several index including survival time were then monitored. RESULTS Rap1GAP mRNA level of R1 and R2 increased about 16-17 folds as compared to the control cells. The invasion rate of R1 and R2 are (55 ± 5)% and (59 ± 4)%, which are significantly higher than (14 ± 4)% of the control cells. The mRNA level of MMP-9 was up-regulated about 12.0 folds in R1 and R2 cells compared to the corresponding control cells. The median survival times of R1 and R2 mice are (32.00 ± 1.85) d and (33.37 ± 2.50) d, respectively, which are shorter than (43.62 ± 2.32) d of the control group. Three mice of R1 and R2 groups showed leukemic cells infiltration in meninges tissue, and the genes of Rap1GAP and MMP-9 were amplified by PCR method. CONCLUSION Up-regulated expression of Rap1GAP increased the invasion ability of HL-60 cells accompanied with enhancement of MMP-9 expression in vitro, and the experiment in mouse model also confirmed that Rap1GAP enhanced the invasion of HL-60 cells in vivo.
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Affiliation(s)
- Tingting Qiu
- Jiangsu Institute of Hematology, 1st Affiliated Hospital, Soochow University, Suzhou 215006, China
| | - Depeng Li
- Jiangsu Institute of Hematology, 1st Affiliated Hospital, Soochow University, Suzhou 215006, China
| | - Zhenyu Li
- Jiangsu Institute of Hematology, 1st Affiliated Hospital, Soochow University, Suzhou 215006, China
| | - Kailin Xu
- Jiangsu Institute of Hematology, 1st Affiliated Hospital, Soochow University, Suzhou 215006, China
| | - Xiaofei Qi
- Jiangsu Institute of Hematology, 1st Affiliated Hospital, Soochow University, Suzhou 215006, China
| | - Jiannong Cen
- Jiangsu Institute of Hematology, 1st Affiliated Hospital, Soochow University, Suzhou 215006, China
| | - Zixing Chen
- Jiangsu Institute of Hematology, 1st Affiliated Hospital, Soochow University, Suzhou 215006, China
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van Dijk IA, Nazmi K, Bolscher JGM, Veerman ECI, Stap J. Histatin-1, a histidine-rich peptide in human saliva, promotes cell-substrate and cell-cell adhesion. FASEB J 2015; 29:3124-32. [DOI: 10.1096/fj.14-266825] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2014] [Accepted: 03/09/2015] [Indexed: 11/11/2022]
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Kim MH, Kino-oka M. Maintenance of an undifferentiated state of human induced pluripotent stem cells through migration-dependent regulation of the balance between cell–cell and cell–substrate interactions. J Biosci Bioeng 2015; 119:617-22. [DOI: 10.1016/j.jbiosc.2014.10.024] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2014] [Revised: 10/23/2014] [Accepted: 10/24/2014] [Indexed: 12/15/2022]
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van den Berg MCW, Burgering BMT. CCM1 and the second life of proteins in adhesion complexes. Cell Adh Migr 2015; 8:146-57. [PMID: 24714220 DOI: 10.4161/cam.28437] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
It is well recognized that a number of proteins present within adhesion complexes perform discrete signaling functions outside these adhesion complexes, including transcriptional control. In this respect, β-catenin is a well-known example of an adhesion protein present both in cadherin complexes and in the nucleus where it regulates the TCF transcription factor. Here we discuss nuclear functions of adhesion complex proteins with a special focus on the CCM-1/KRIT-1 protein, which may turn out to be yet another adhesion complex protein with a second life.
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Affiliation(s)
- Maaike C W van den Berg
- Center for Molecular Medicine; Dept. Molecular Cancer Research; University Medical Center Utrecht; The Netherlands
| | - Boudewijn M T Burgering
- Center for Molecular Medicine; Dept. Molecular Cancer Research; University Medical Center Utrecht; The Netherlands
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43
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Integrin β1 controls VE-cadherin localization and blood vessel stability. Nat Commun 2015; 6:6429. [PMID: 25752958 DOI: 10.1038/ncomms7429] [Citation(s) in RCA: 150] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2014] [Accepted: 01/28/2015] [Indexed: 01/19/2023] Open
Abstract
Angiogenic blood vessel growth requires several distinct but integrated cellular activities. Endothelial cell sprouting and proliferation lead to the expansion of the vasculature and give rise to a highly branched, immature plexus, which is subsequently reorganized into a mature and stable network. Although it is known that integrin-mediated cell-matrix interactions are indispensable for embryonic angiogenesis, little is known about the function of integrins in different steps of vascular morphogenesis. Here, by investigating the integrin β1-subunit with inducible and endothelial-specific gene targeting in the postnatal mouse retina, we show that β1 integrin promotes endothelial sprouting but is a negative regulator of proliferation. In maturing vessels, integrin β1 is indispensable for proper localization of VE-cadherin and thereby cell-cell junction integrity. The sum of our findings establishes that integrin β1 has critical functions in the growing and maturing vasculature, and is required for the formation of stable, non-leaky blood vessels.
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Gomez GA, McLachlan RW, Wu SK, Caldwell BJ, Moussa E, Verma S, Bastiani M, Priya R, Parton RG, Gaus K, Sap J, Yap AS. An RPTPα/Src family kinase/Rap1 signaling module recruits myosin IIB to support contractile tension at apical E-cadherin junctions. Mol Biol Cell 2015; 26:1249-62. [PMID: 25631816 PMCID: PMC4454173 DOI: 10.1091/mbc.e14-07-1223] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Cell-cell adhesion couples the contractile cortices of epithelial cells together, generating tension to support a range of morphogenetic processes. E-cadherin adhesion plays an active role in generating junctional tension by promoting actin assembly and cortical signaling pathways that regulate myosin II. Multiple myosin II paralogues accumulate at mammalian epithelial cell-cell junctions. Earlier, we found that myosin IIA responds to Rho-ROCK signaling to support junctional tension in MCF-7 cells. Although myosin IIB is also found at the zonula adherens (ZA) in these cells, its role in junctional contractility and its mode of regulation are less well understood. We now demonstrate that myosin IIB contributes to tension at the epithelial ZA. Further, we identify a receptor type-protein tyrosine phosphatase alpha-Src family kinase-Rap1 pathway as responsible for recruiting myosin IIB to the ZA and supporting contractile tension. Overall these findings reinforce the concept that orthogonal E-cadherin-based signaling pathways recruit distinct myosin II paralogues to generate the contractile apparatus at apical epithelial junctions.
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Affiliation(s)
- Guillermo A Gomez
- Division of Cell Biology and Molecular Medicine, Institute for Molecular Bioscience, University of Queensland, St. Lucia, Brisbane, Queensland 4072, Australia
| | - Robert W McLachlan
- Division of Cell Biology and Molecular Medicine, Institute for Molecular Bioscience, University of Queensland, St. Lucia, Brisbane, Queensland 4072, Australia
| | - Selwin K Wu
- Division of Cell Biology and Molecular Medicine, Institute for Molecular Bioscience, University of Queensland, St. Lucia, Brisbane, Queensland 4072, Australia
| | - Benjamin J Caldwell
- Division of Cell Biology and Molecular Medicine, Institute for Molecular Bioscience, University of Queensland, St. Lucia, Brisbane, Queensland 4072, Australia
| | - Elliott Moussa
- Division of Cell Biology and Molecular Medicine, Institute for Molecular Bioscience, University of Queensland, St. Lucia, Brisbane, Queensland 4072, Australia
| | - Suzie Verma
- Division of Cell Biology and Molecular Medicine, Institute for Molecular Bioscience, University of Queensland, St. Lucia, Brisbane, Queensland 4072, Australia
| | - Michele Bastiani
- Division of Cell Biology and Molecular Medicine, Institute for Molecular Bioscience, University of Queensland, St. Lucia, Brisbane, Queensland 4072, Australia
| | - Rashmi Priya
- Division of Cell Biology and Molecular Medicine, Institute for Molecular Bioscience, University of Queensland, St. Lucia, Brisbane, Queensland 4072, Australia
| | - Robert G Parton
- Division of Cell Biology and Molecular Medicine, Institute for Molecular Bioscience, University of Queensland, St. Lucia, Brisbane, Queensland 4072, Australia
| | - Katharina Gaus
- UNSW Australia, ARC Centre of Excellence in Advanced Molecular Imaging and Australian Centre for Nanomedicine, Sydney 2052, Australia
| | - Jan Sap
- Université Paris Diderot, Sorbonne Paris Cité, Epigenetics and Cell Fate, UMR 7216 CNRS Bâtiment Lamarck, F-75205 Paris Cedex 13, France
| | - Alpha S Yap
- Division of Cell Biology and Molecular Medicine, Institute for Molecular Bioscience, University of Queensland, St. Lucia, Brisbane, Queensland 4072, Australia
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Cox OT, O’Shea S, Tresse E, Bustamante-Garrido M, Kiran-Deevi R, O’Connor R. IGF-1 Receptor and Adhesion Signaling: An Important Axis in Determining Cancer Cell Phenotype and Therapy Resistance. Front Endocrinol (Lausanne) 2015; 6:106. [PMID: 26191041 PMCID: PMC4490239 DOI: 10.3389/fendo.2015.00106] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2015] [Accepted: 06/19/2015] [Indexed: 11/13/2022] Open
Abstract
IGF-1R expression and activation levels generally cannot be correlated in cancer cells, suggesting that cellular proteins may modulate IGF-1R activity. Strong candidates for such modulation are found in cell-matrix and cell-cell adhesion signaling complexes. Activated IGF-1R is present at focal adhesions, where it can stabilize β1 integrin and participate in signaling complexes that promote invasiveness associated with epithelial mesenchymal transition (EMT) and resistance to therapy. Whether IGF-1R contributes to EMT or to non-invasive tumor growth may be strongly influenced by the degree of extracellular matrix engagement and the presence or absence of key proteins in IGF-1R-cell adhesion complexes. One such protein is PDLIM2, which promotes both cell polarization and EMT by regulating the stability of transcription factors including NFκB, STATs, and beta catenin. PDLIM2 exhibits tumor suppressor activity, but is also highly expressed in certain invasive cancers. It is likely that distinct adhesion complex proteins modulate IGF-1R signaling during cancer progression or adaptive responses to therapy. Thus, identifying the key modulators will be important for developing effective therapeutic strategies and predictive biomarkers.
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Affiliation(s)
- Orla T. Cox
- Cell Biology Laboratory, BioSciences Institute, School of Biochemistry and Cell Biology, University College Cork, Cork, Ireland
| | - Sandra O’Shea
- Cell Biology Laboratory, BioSciences Institute, School of Biochemistry and Cell Biology, University College Cork, Cork, Ireland
| | - Emilie Tresse
- Cell Biology Laboratory, BioSciences Institute, School of Biochemistry and Cell Biology, University College Cork, Cork, Ireland
| | - Milan Bustamante-Garrido
- Cell Biology Laboratory, BioSciences Institute, School of Biochemistry and Cell Biology, University College Cork, Cork, Ireland
| | - Ravi Kiran-Deevi
- Cell Biology Laboratory, BioSciences Institute, School of Biochemistry and Cell Biology, University College Cork, Cork, Ireland
| | - Rosemary O’Connor
- Cell Biology Laboratory, BioSciences Institute, School of Biochemistry and Cell Biology, University College Cork, Cork, Ireland
- *Correspondence: Rosemary O’Connor, Cell Biology Laboratory, BioSciences Institute, School of Biochemistry and Cell Biology, University College Cork, Cork, Ireland,
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Moglia A, Goitre L, Gianoglio S, Baldini E, Trapani E, Genre A, Scattina A, Dondo G, Trabalzini L, Beekwilder J, Retta SF. Evaluation of the bioactive properties of avenanthramide analogs produced in recombinant yeast. Biofactors 2015; 41:15-27. [PMID: 25639351 DOI: 10.1002/biof.1197] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2014] [Accepted: 12/17/2014] [Indexed: 02/04/2023]
Abstract
Saccharomyces cerevisiae has been proven to be a valuable tool for the expression of plant metabolic pathways. By engineering a S. cerevisiae strain with two plant genes (4cl-2 from tobacco and hct from globe artichoke) we previously set up a system for the production of two novel phenolic compounds, N-(E)-p-coumaroyl-3-hydroxyanthranilic acid (Yeast avenanthramide I, Yav I) and N-(E)-caffeoyl-3-hydroxyanthranilic acid (Yeast avenanthramide II, Yav II). These compounds have a structural similarity with a class of bioactive oat compounds called avenanthramides. By developing a fermentation process for the engineered S. cerevisiae strain, we obtained a high-yield production of Yav I and Yav II. To examine the biological relevance of these compounds, we tested their potential antioxidant and antiproliferative properties upon treatment of widely used cell models, including immortalized mouse embryonic fibroblast cell lines and HeLa cancer cells. The outcomes of our experiments showed that both Yav I and Yav II enter the cell and trigger a significant up-regulation of master regulators of cell antioxidant responses, including the major antioxidant protein SOD2 and its transcriptional regulator FoxO1 as well as the down-regulation of Cyclin D1. Intriguingly, these effects were also demonstrated in cellular models of the human genetic disease Cerebral Cavernous Malformation, suggesting that the novel phenolic compounds Yav I and Yav II are endowed with bioactive properties relevant to biomedical applications. Taken together, our data demonstrate the feasibility of biotechnological production of yeast avenanthramides and underline a biologically relevant antioxidant activity of these molecules.
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MESH Headings
- Animals
- Antineoplastic Agents, Phytogenic/biosynthesis
- Antineoplastic Agents, Phytogenic/isolation & purification
- Antineoplastic Agents, Phytogenic/pharmacology
- Antioxidants/isolation & purification
- Antioxidants/metabolism
- Antioxidants/pharmacology
- Biological Transport
- Cell Line, Transformed
- Cyclin D1/antagonists & inhibitors
- Cyclin D1/genetics
- Cyclin D1/metabolism
- Cynara scolymus/chemistry
- Cynara scolymus/genetics
- Fibroblasts/cytology
- Fibroblasts/drug effects
- Fibroblasts/metabolism
- Forkhead Box Protein O1
- Forkhead Transcription Factors/agonists
- Forkhead Transcription Factors/genetics
- Forkhead Transcription Factors/metabolism
- Gene Expression Regulation
- Genes, Plant
- HeLa Cells
- Hemangioma, Cavernous, Central Nervous System/drug therapy
- Hemangioma, Cavernous, Central Nervous System/genetics
- Hemangioma, Cavernous, Central Nervous System/metabolism
- Humans
- Metabolic Engineering
- Mice
- Models, Biological
- Reactive Oxygen Species/antagonists & inhibitors
- Reactive Oxygen Species/metabolism
- Saccharomyces cerevisiae/genetics
- Saccharomyces cerevisiae/metabolism
- Signal Transduction
- Superoxide Dismutase/genetics
- Superoxide Dismutase/metabolism
- Nicotiana/chemistry
- Nicotiana/genetics
- Transgenes
- ortho-Aminobenzoates/isolation & purification
- ortho-Aminobenzoates/metabolism
- ortho-Aminobenzoates/pharmacology
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Affiliation(s)
- Andrea Moglia
- Department of Agricultural, Forest and Food Sciences, Università degli Studi di Torino, Grugliasco, Turin, Italy; CCM Italia Research Network (www.ccmitalia.unito.it)
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Jossin Y. Polarization of migrating cortical neurons by Rap1 and N-cadherin: Revisiting the model for the Reelin signaling pathway. Small GTPases 2014; 2:322-328. [PMID: 22545231 PMCID: PMC3337162 DOI: 10.4161/sgtp.18283] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Neuronal migration is essential for the development of the cerebral cortex. Mutations leading to defective migration are associated with numerous brain pathologies. An important challenge in the field is to understand the intrinsic and extrinsic mechanisms that regulate neuronal migration during normal development and in disease. Many small GTPases are expressed in the central nervous system during embryonic development. Recent findings have shown that Rap1 and its downstream partners Ral, Rac and Cdc42 are involved in the maintenance of N-Cadherin at the plasma membrane which is necessary for the correct polarization of migrating neurons. The activation of Rap1 is triggered by Reelin, an extracellular protein known for its role in the organization of the cortex into layers of neurons. In the absence of Reelin, neurons exhibit a broader and irregular pattern of positioning. The prevailing model suggests that Reelin signals to neurons during the last step of their migration, a notion that is inconsistent with new data describing an effect of Reelin on early steps of migration. In regard to these recent findings I suggest a revised model, which I call the “polarity model,” that further refines our understanding of the developmental function played by Reelin and its downstream small GTPases.
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Affiliation(s)
- Yves Jossin
- Division of Basic Sciences; Fred Hutchinson Cancer Research Center; Seattle, WA USA; Institute of Neuroscience; University of Louvain Medical School; Brussels, Belgium
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48
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Abstract
The Ras superfamily of small GTPases is composed of more than 150 members, which share a conserved structure and biochemical properties, acting as binary molecular switches turned on by binding GTP and off by hydrolyzing GTP to GDP. However, despite considerable structural and biochemical similarities, these proteins play multiple and divergent roles, being versatile and key regulators of virtually all fundamental cellular processes. Conversely, their dysfunction plays a crucial role in the pathogenesis of serious human diseases, including cancer and developmental syndromes. Fuelled by the original identification in 1982 of mutationally activated and transforming human Ras genes in human cancer cell lines, a variety of powerful experimental techniques have been intensively focused on discovering and studying structure, biochemistry, and biology of Ras and Ras-related small GTPases, leading to fundamental research breakthroughs into identification and structural and functional characterization of a huge number of Ras superfamily members, as well as of their multiple regulators and effectors. In this review we provide a general overview of the major milestones that eventually allowed to unlock the secret treasure chest of this large and important superfamily of proteins.
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p130Cas scaffolds the signalosome to direct adaptor-effector cross talk during Kaposi's sarcoma-associated herpesvirus trafficking in human microvascular dermal endothelial cells. J Virol 2014; 88:13858-78. [PMID: 25253349 DOI: 10.1128/jvi.01674-14] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
UNLABELLED Kaposi's sarcoma-associated herpesvirus (KSHV) interacts with cell surface receptors, such as heparan sulfate, integrins (α3β1, αVβ3, and αVβ5), and EphrinA2 (EphA2), and activates focal adhesion kinase (FAK), Src, phosphoinositol 3-kinase (PI3-K), c-Cbl, and RhoA GTPase signal molecules early during lipid raft (LR)-dependent productive macropinocytic entry into human dermal microvascular endothelial cells. Our recent studies have identified CIB1 as a signal amplifier facilitating EphA2 phosphorylation and subsequent cytoskeletal cross talk during KSHV macropinocytosis. Although CIB1 lacks an enzymatic activity and traditional adaptor domain or known interacting sequence, it associated with the KSHV entry signal complex and the CIB1-KSHV association was sustained over 30 min postinfection. To identify factors scaffolding the EphA2-CIB1 signal axis, the role of major cellular scaffold protein p130Cas (Crk-associated substrate of Src) was investigated. Inhibitor and small interfering RNA (siRNA) studies demonstrated that KSHV induced p130Cas in an EphA2-, CIB1-, and Src-dependent manner. p130Cas and Crk were associated with KSHV, LRs, EphA2, and CIB1 early during infection. Live-cell microscopy and biochemical studies demonstrated that p130Cas knockdown did not affect KSHV entry but significantly reduced productive nuclear trafficking of viral DNA and routed KSHV to lysosomal degradation. p130Cas aided in scaffolding adaptor Crk to downstream guanine nucleotide exchange factor phospho-C3G possibly to coordinate GTPase signaling during KSHV trafficking. Collectively, these studies demonstrate that p130Cas acts as a bridging molecule between the KSHV-induced entry signal complex and the downstream trafficking signalosome in endothelial cells and suggest that simultaneous targeting of KSHV entry receptors with p130Cas would be an attractive potential avenue for therapeutic intervention in KSHV infection. IMPORTANCE Eukaryotic cell adaptor molecules, without any intrinsic enzymatic activity, are well known to allow a great diversity of specific and coordinated protein-protein interactions imparting signal amplification to different networks for physiological and pathological signaling. They are involved in integrating signals from growth factors, extracellular matrix molecules, bacterial pathogens, and apoptotic cells. The present study identifies human microvascular dermal endothelial (HMVEC-d) cellular scaffold protein p130Cas (Crk-associated substrate) as a platform to promote Kaposi's sarcoma-associated herpesvirus (KSHV) trafficking. Early during KSHV de novo infection, p130Cas associates with lipid rafts and scaffolds EphrinA2 (EphA2)-associated critical adaptor members to downstream effector molecules, promoting successful nuclear delivery of the KSHV genome. Hence, simultaneous targeting of the receptor EphA2 and scaffolding action of p130Cas can potentially uncouple the signal cross talk of the KSHV entry-associated upstream signal complex from the immediate downstream trafficking-associated signalosome, consequently routing KSHV toward lysosomal degradation and eventually blocking KSHV infection and associated malignancies.
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50
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Brignone MS, Lanciotti A, Visentin S, De Nuccio C, Molinari P, Camerini S, Diociaiuti M, Petrini S, Minnone G, Crescenzi M, Laudiero LB, Bertini E, Petrucci TC, Ambrosini E. Megalencephalic leukoencephalopathy with subcortical cysts protein-1 modulates endosomal pH and protein trafficking in astrocytes: relevance to MLC disease pathogenesis. Neurobiol Dis 2014; 66:1-18. [PMID: 24561067 PMCID: PMC4003525 DOI: 10.1016/j.nbd.2014.02.003] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2013] [Revised: 01/20/2014] [Accepted: 02/10/2014] [Indexed: 11/28/2022] Open
Abstract
Megalencephalic leukoencephalopathy with subcortical cysts (MLC) is a rare leukodystrophy caused by mutations in the gene encoding MLC1, a membrane protein mainly expressed in astrocytes in the central nervous system. Although MLC1 function is unknown, evidence is emerging that it may regulate ion fluxes. Using biochemical and proteomic approaches to identify MLC1 interactors and elucidate MLC1 function we found that MLC1 interacts with the vacuolar ATPase (V-ATPase), the proton pump that regulates endosomal acidity. Because we previously showed that in intracellular organelles MLC1 directly binds Na, K-ATPase, which controls endosomal pH, we studied MLC1 endosomal localization and trafficking and MLC1 effects on endosomal acidity and function using human astrocytoma cells overexpressing wild-type (WT) MLC1 or MLC1 carrying pathological mutations. We found that WT MLC1 is abundantly expressed in early (EEA1(+), Rab5(+)) and recycling (Rab11(+)) endosomes and uses the latter compartment to traffic to the plasma membrane during hyposmotic stress. We also showed that WT MLC1 limits early endosomal acidification and influences protein trafficking in astrocytoma cells by stimulating protein recycling, as revealed by FITC-dextran measurement of endosomal pH and transferrin protein recycling assay, respectively. WT MLC1 also favors recycling to the plasma-membrane of the TRPV4 cation channel which cooperates with MLC1 to activate calcium influx in astrocytes during hyposmotic stress. Although MLC disease-causing mutations differentially affect MLC1 localization and trafficking, all the mutated proteins fail to influence endosomal pH and protein recycling. This study demonstrates that MLC1 modulates endosomal pH and protein trafficking suggesting that alteration of these processes contributes to MLC pathogenesis.
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Affiliation(s)
- Maria S Brignone
- Department of Cell Biology and Neuroscience, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, Italy.
| | - Angela Lanciotti
- Department of Cell Biology and Neuroscience, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, Italy.
| | - Sergio Visentin
- Department of Cell Biology and Neuroscience, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, Italy.
| | - Chiara De Nuccio
- Department of Cell Biology and Neuroscience, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, Italy.
| | - Paola Molinari
- Department of Pharmacology, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, Italy.
| | - Serena Camerini
- Department of Cell Biology and Neuroscience, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, Italy.
| | - Marco Diociaiuti
- Department of Technology and Health, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, Italy.
| | - Stefania Petrini
- Unit of Neurodegenerative Disorders, Laboratory of Molecular Medicine, Bambino Gesù Pediatric Research Hospital, Piazza S. Onofrio 4, 00165 Rome, Italy.
| | - Gaetana Minnone
- Unit of Neurodegenerative Disorders, Laboratory of Molecular Medicine, Bambino Gesù Pediatric Research Hospital, Piazza S. Onofrio 4, 00165 Rome, Italy.
| | - Marco Crescenzi
- Department of Cell Biology and Neuroscience, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, Italy.
| | - Luisa Bracci Laudiero
- Unit of Neurodegenerative Disorders, Laboratory of Molecular Medicine, Bambino Gesù Pediatric Research Hospital, Piazza S. Onofrio 4, 00165 Rome, Italy; Institute of Translational Pharmacology, CNR, Via del Fosso Cavaliere 100, 00133 Rome, Italy.
| | - Enrico Bertini
- Unit of Neurodegenerative Disorders, Laboratory of Molecular Medicine, Bambino Gesù Pediatric Research Hospital, Piazza S. Onofrio 4, 00165 Rome, Italy.
| | - Tamara C Petrucci
- Department of Cell Biology and Neuroscience, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, Italy.
| | - Elena Ambrosini
- Department of Cell Biology and Neuroscience, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, Italy.
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