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Kiss K, Kopřivová H, Stejskal V, Krbal L, Buday J, Brunnbauer L, Képeš E, Pořízka P, Ryška A, Kaška M, Kaiser J, Limbeck A. Assessing spatial distribution of bioindicator elements in various cutaneous tumors using correlative imaging with laser-ablation-based analytical methods. Talanta 2024; 279:126651. [PMID: 39121552 DOI: 10.1016/j.talanta.2024.126651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Revised: 07/23/2024] [Accepted: 07/30/2024] [Indexed: 08/12/2024]
Abstract
Correlative imaging of cutaneous tumors provides additional information to the standard histopathologic examination. However, the joint progress in the establishment of analytical techniques, such as Laser-Induced Breakdown Spectroscopy (LIBS) and Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS) in clinical practice is still limited. Their combination provides complementary information as it is also shown in our study in terms of major biotic (Ca, Mg, and P) and trace (Cu and Zn) elements. To elucidate changes in the elemental composition in tumors, we have compiled a set of malignant tumors (Squamous Cell Carcinoma, Basal Cell Carcinoma, Malignant Melanoma, and Epithelioid Angiosarcoma), one benign tumor (Pigmented Nevus) and one healthy-skin sample. The data processing was based on a methodological pipeline involving binary image registration and affine transformation. Thus, our paper brings a feasibility study of a practical methodological concept that enables us to compare LIBS and LA-ICP-MS results despite the mutual spatial distortion of original elemental images. Moreover, we also show that LIBS could be a sufficient pre-screening method even for a larger number of samples according to the speed and reproducibility of the analyses. Whereas LA-ICP-MS could serve as a ground truth and reference technique for preselected samples.
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Affiliation(s)
- Kateřina Kiss
- Charles University, Faculty of Medicine in Hradec Králové, Academic Department of Surgery, Šimkova 870, 500 03 Hradec Králové, Czech Republic; Charles University, Third Faculty of Medicine, Department of Plastic Surgery, Ruská 2411, 100 00 Praha 10, Czech Republic; Surgical Department, Faculty of Medicine in Hradec Králové Charles University and University Hospital Hradec Králové, Sokolská 581, 500 05 Hradec Králové, Czech Republic
| | - Hana Kopřivová
- Central European Institute of Technology (CEITEC), Brno University of Technology, Purkyňova 123, 612 00 Brno, Czech Republic
| | - Václav Stejskal
- Charles University, Faculty of Medicine in Hradec Králové, Academic Department of Surgery, Šimkova 870, 500 03 Hradec Králové, Czech Republic; The Fingerland Department of Pathology, Faculty of Medicine in Hradec Králové Charles University and University Hospital Hradec Králové, Sokolská 581, 500 05 Hradec Králové, Czech Republic
| | - Lukáš Krbal
- Charles University, Faculty of Medicine in Hradec Králové, Academic Department of Surgery, Šimkova 870, 500 03 Hradec Králové, Czech Republic; The Fingerland Department of Pathology, Faculty of Medicine in Hradec Králové Charles University and University Hospital Hradec Králové, Sokolská 581, 500 05 Hradec Králové, Czech Republic
| | - Jakub Buday
- Central European Institute of Technology (CEITEC), Brno University of Technology, Purkyňova 123, 612 00 Brno, Czech Republic; Faculty of Mechanical Engineering (FME), Brno University of Technology, Technická 2 896, 616 69 Brno, Czech Republic
| | - Lukas Brunnbauer
- TU Wien, Institute of Chemical Technologies and Analytics, Getreidemarkt 9/164-I(2)AC, 1060 Vienna, Austria
| | - Erik Képeš
- Central European Institute of Technology (CEITEC), Brno University of Technology, Purkyňova 123, 612 00 Brno, Czech Republic
| | - Pavel Pořízka
- Central European Institute of Technology (CEITEC), Brno University of Technology, Purkyňova 123, 612 00 Brno, Czech Republic; Faculty of Mechanical Engineering (FME), Brno University of Technology, Technická 2 896, 616 69 Brno, Czech Republic.
| | - Aleš Ryška
- The Fingerland Department of Pathology, Faculty of Medicine in Hradec Králové Charles University and University Hospital Hradec Králové, Sokolská 581, 500 05 Hradec Králové, Czech Republic
| | - Milan Kaška
- Charles University, Faculty of Medicine in Hradec Králové, Academic Department of Surgery, Šimkova 870, 500 03 Hradec Králové, Czech Republic; Surgical Department, Faculty of Medicine in Hradec Králové Charles University and University Hospital Hradec Králové, Sokolská 581, 500 05 Hradec Králové, Czech Republic
| | - Jozef Kaiser
- Central European Institute of Technology (CEITEC), Brno University of Technology, Purkyňova 123, 612 00 Brno, Czech Republic; Faculty of Mechanical Engineering (FME), Brno University of Technology, Technická 2 896, 616 69 Brno, Czech Republic
| | - Andreas Limbeck
- TU Wien, Institute of Chemical Technologies and Analytics, Getreidemarkt 9/164-I(2)AC, 1060 Vienna, Austria
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Pang M, Sun X, He T, Liang H, Yang H, Chen J. Development of a prognostic model based on anoikis-related genes for predicting clinical prognosis and immunotherapy of hepatocellular carcinoma. Aging (Albany NY) 2023; 15:10253-10271. [PMID: 37787988 PMCID: PMC10599733 DOI: 10.18632/aging.205073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Accepted: 06/19/2023] [Indexed: 10/04/2023]
Abstract
Hepatocellular Carcinoma (HCC) is the predominant cause of cancer-related mortality worldwide. The majority of HCC patients are diagnosed at advanced stages of the disease, with a high likelihood of metastasis and unfavorable prognosis. Anoikis resistance is a crucial factor contributing to tumor invasion and metastasis, although its specific role in HCC remains unclear. Based on the results of univariate Cox regression and least absolute shrink-age and selection operator (LASSO) analysis, a subset of anoikis-related genes (ARGs) significantly associated with overall survival (OS) was identified. A multivariate Cox regression analysis subsequently identified PDK4, STK11, and TFDP1 as three prognostic ARGs, which were then used to establish a prognostic risk model. Differences in OS caused by risk stratification in HCC patients were demonstrated. The nomogram analysis indicated that the ARGs prognostic signature served as an independent prognostic predictor. In vitro experiments further confirmed the abnormal expression of selected ARGs in HCC. The association between risk scores and OS was further examined through Kaplan-Meier analysis, CIBERSORT analysis, and single-sample gene set enrichment analysis (ssGSEA). This study is a pioneering effort to integrate multiple ARGs and establish a risk-predictive model, providing a unique perspective for the development of personalized and precise therapeutic strategies for HCC.
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Affiliation(s)
- Mu Pang
- The Fourth Clinical Medical College of Guangzhou University of Chinese Medicine, Shenzhen Traditional Chinese Medicine Hospital, Shenzhen, Guangdong 518000, China
| | - Xizhe Sun
- Research Center for Drug Safety Evaluation of Hainan, Hainan Medical University, Haikou, Hainan 571199, China
| | - Ting He
- The Fourth Clinical Medical College of Guangzhou University of Chinese Medicine, Shenzhen Traditional Chinese Medicine Hospital, Shenzhen, Guangdong 518000, China
| | - Huichao Liang
- The Fourth Clinical Medical College of Guangzhou University of Chinese Medicine, Shenzhen Traditional Chinese Medicine Hospital, Shenzhen, Guangdong 518000, China
| | - Hao Yang
- The Fourth Clinical Medical College of Guangzhou University of Chinese Medicine, Shenzhen Traditional Chinese Medicine Hospital, Shenzhen, Guangdong 518000, China
| | - Jun Chen
- The Fourth Clinical Medical College of Guangzhou University of Chinese Medicine, Shenzhen Traditional Chinese Medicine Hospital, Shenzhen, Guangdong 518000, China
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Tito C, Genovese I, Giamogante F, Benedetti A, Miglietta S, Barazzuol L, Cristiano L, Iaiza A, Carolini S, De Angelis L, Masciarelli S, Nottola SA, Familiari G, Petrozza V, Lauriola M, Tamagnone L, Ilari A, Calì T, Valdivia HH, Valdivia CR, Colotti G, Fazi F. Sorcin promotes migration in cancer and regulates the EGF-dependent EGFR signaling pathways. Cell Mol Life Sci 2023; 80:202. [PMID: 37442828 PMCID: PMC10345051 DOI: 10.1007/s00018-023-04850-4] [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: 11/10/2022] [Revised: 06/03/2023] [Accepted: 06/28/2023] [Indexed: 07/15/2023]
Abstract
The epidermal growth factor receptor (EGFR) is one of the main tumor drivers and is an important therapeutic target for many cancers. Calcium is important in EGFR signaling pathways. Sorcin is one of the most important calcium sensor proteins, overexpressed in many tumors, that promotes cell proliferation, migration, invasion, epithelial-to-mesenchymal transition, malignant progression and resistance to chemotherapeutic drugs. The present work elucidates a functional mechanism that links calcium homeostasis to EGFR signaling in cancer. Sorcin and EGFR expression are significantly correlated and associated with reduced overall survival in cancer patients. Mechanistically, Sorcin directly binds EGFR protein in a calcium-dependent fashion and regulates calcium (dys)homeostasis linked to EGF-dependent EGFR signaling. Moreover, Sorcin controls EGFR proteostasis and signaling and increases its phosphorylation, leading to increased EGF-dependent migration and invasion. Of note, silencing of Sorcin cooperates with EGFR inhibitors in the regulation of migration, highlighting calcium signaling pathway as an exploitable target to enhance the effectiveness of EGFR-targeting therapies.
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Affiliation(s)
- Claudia Tito
- Section of Histology and Medical Embryology, Department of Anatomical, Histological, Forensic & Orthopaedic Sciences, Sapienza University of Rome, Via A. Scarpa, 14-16, 00161 Rome, Italy
| | - Ilaria Genovese
- Institute of Molecular Biology and Pathology, Italian National Research Council, IBPM-CNR, P.le A. Moro 5, 00185 Rome, Italy
| | - Flavia Giamogante
- Department of Biomedical Sciences, University of Padova, Padua, Italy
| | - Anna Benedetti
- Section of Histology and Medical Embryology, Department of Anatomical, Histological, Forensic & Orthopaedic Sciences, Sapienza University of Rome, Via A. Scarpa, 14-16, 00161 Rome, Italy
| | - Selenia Miglietta
- Section of Human Anatomy, Department of Anatomical, Histological, Forensic & Orthopaedic Sciences, Sapienza University of Rome, Rome, Italy
| | - Lucia Barazzuol
- Department of Biomedical Sciences, University of Padova, Padua, Italy
| | - Loredana Cristiano
- Department of Life, Health and Environmental Sciences, University of L’Aquila, L’Aquila, Italy
| | - Alessia Iaiza
- Section of Histology and Medical Embryology, Department of Anatomical, Histological, Forensic & Orthopaedic Sciences, Sapienza University of Rome, Via A. Scarpa, 14-16, 00161 Rome, Italy
| | - Sabatino Carolini
- Institute of Molecular Biology and Pathology, Italian National Research Council, IBPM-CNR, P.le A. Moro 5, 00185 Rome, Italy
| | - Luciana De Angelis
- Section of Histology and Medical Embryology, Department of Anatomical, Histological, Forensic & Orthopaedic Sciences, Sapienza University of Rome, Via A. Scarpa, 14-16, 00161 Rome, Italy
| | - Silvia Masciarelli
- Section of Histology and Medical Embryology, Department of Anatomical, Histological, Forensic & Orthopaedic Sciences, Sapienza University of Rome, Via A. Scarpa, 14-16, 00161 Rome, Italy
| | - Stefania Annarita Nottola
- Section of Human Anatomy, Department of Anatomical, Histological, Forensic & Orthopaedic Sciences, Sapienza University of Rome, Rome, Italy
| | - Giuseppe Familiari
- Section of Human Anatomy, Department of Anatomical, Histological, Forensic & Orthopaedic Sciences, Sapienza University of Rome, Rome, Italy
| | - Vincenzo Petrozza
- Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Latina, Italy
| | - Mattia Lauriola
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, Bologna, Italy
| | - Luca Tamagnone
- Department of Life Science and Public Health, Histology and Embryology Unit - Catholic University of the Sacred Hearth, Fondazione Policlinico Gemelli - IRCCS, Rome, Italy
| | - Andrea Ilari
- Institute of Molecular Biology and Pathology, Italian National Research Council, IBPM-CNR, P.le A. Moro 5, 00185 Rome, Italy
| | - Tito Calì
- Department of Biomedical Sciences, University of Padova, Padua, Italy
| | - Hector H. Valdivia
- Department of Medicine, Cardiovascular Research Center, University of Wisconsin, Madison, WI USA
| | - Carmen R. Valdivia
- Department of Medicine, Cardiovascular Research Center, University of Wisconsin, Madison, WI USA
| | - Gianni Colotti
- Institute of Molecular Biology and Pathology, Italian National Research Council, IBPM-CNR, P.le A. Moro 5, 00185 Rome, Italy
| | - Francesco Fazi
- Section of Histology and Medical Embryology, Department of Anatomical, Histological, Forensic & Orthopaedic Sciences, Sapienza University of Rome, Via A. Scarpa, 14-16, 00161 Rome, Italy
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Lee AR, Park CY. Orai1 is an Entotic Ca 2+ Channel for Non-Apoptotic Cell Death, Entosis in Cancer Development. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2205913. [PMID: 36960682 DOI: 10.1002/advs.202205913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 02/16/2023] [Indexed: 05/18/2023]
Abstract
Entosis is a non-apoptotic cell death process that forms characteristic cell-in-cell structures in cancers, killing invading cells. Intracellular Ca2+ dynamics are essential for cellular processes, including actomyosin contractility, migration, and autophagy. However, the significance of Ca2+ and Ca2+ channels participating in entosis is unclear. Here, it is shown that intracellular Ca2+ signaling regulates entosis via SEPTIN-Orai1-Ca2+ /CaM-MLCK-actomyosin axis. Intracellular Ca2+ oscillations in entotic cells show spatiotemporal variations during engulfment, mediated by Orai1 Ca2+ channels in plasma membranes. SEPTIN controlled polarized distribution of Orai1 for local MLCK activation, resulting in MLC phosphorylation and actomyosin contraction, leads to internalization of invasive cells. Ca2+ chelators and SEPTIN, Orai1, and MLCK inhibitors suppress entosis. This study identifies potential targets for treating entosis-associated tumors, showing that Orai1 is an entotic Ca2+ channel that provides essential Ca2+ signaling and sheds light on the molecular mechanism underlying entosis that involves SEPTIN filaments, Orai1, and MLCK.
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Affiliation(s)
- Ah Reum Lee
- Department of Biological Sciences, Ulsan National Institute of Science and Technology, Ulsan, 44919, Republic of Korea
| | - Chan Young Park
- Department of Biological Sciences, Ulsan National Institute of Science and Technology, Ulsan, 44919, Republic of Korea
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Villalobo A. Regulation of ErbB Receptors by the Ca2+ Sensor Protein Calmodulin in Cancer. Biomedicines 2023; 11:biomedicines11030661. [PMID: 36979639 PMCID: PMC10045772 DOI: 10.3390/biomedicines11030661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Revised: 02/17/2023] [Accepted: 02/19/2023] [Indexed: 02/24/2023] Open
Abstract
Overexpression and mutations of the epidermal growth factor receptor (EGFR/ErbB1/HER1) and other tyrosine kinase receptors of the ErbB family (ErbB2/HER2, ErbB3/HER3 and ErbB4/HER4) play an essential role in enhancing the proliferation, the migratory capacity and invasiveness of many tumor cells, leading to cancer progression and increased malignancy. To understand these cellular processes in detail is essential to understand at a molecular level the signaling pathways and regulatory mechanisms controlling these receptors. In this regard, calmodulin (CaM) is a Ca2+-sensor protein that directly interacts with and regulates ErbB receptors, as well as some CaM-dependent kinases that also regulate these receptors, particularly EGFR and ErbB2, adding an additional layer of CaM-dependent regulation to this system. In this short review, an update of recent advances in this area is presented, covering the direct action of Ca2+/CaM on the four ErbB family members mostly in tumor cells and the indirect action of Ca2+/CaM on the receptors via CaM-regulated kinases. It is expected that further understanding of the CaM-dependent mechanisms regulating the ErbB receptors in future studies could identify new therapeutic targets in these systems that could help to control or delay cancer progression.
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Affiliation(s)
- Antonio Villalobo
- Cancer and Human Molecular Genetics Area-Oto-Neurosurgery Research Group, University Hospital La Paz Research Institute (IdiPAZ), Paseo de la Castellana 261, E-28046 Madrid, Spain
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Zhang G, Chen A, Fang J, Wu A, Chen G, Tai P, Chen H, Chen X, Cao K. Construction of a novel molecular typing and scoring system for anoikis distinguishes between different prognostic risks and treatment responsiveness in low-grade glioma. Front Immunol 2023; 14:1105210. [PMID: 37114037 PMCID: PMC10126347 DOI: 10.3389/fimmu.2023.1105210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 03/27/2023] [Indexed: 04/29/2023] Open
Abstract
Background The main factors responsible for low-grade glioma (LGG)s' poor prognosis and treatment effectiveness include recurrence and malignant progression. A specific type of programmed cell death, known as anoikis, which is crucial for tumor invasion and metastasis, however, has not yet been investigated in LGGs. Methods We downloaded data of 509 samples from the TCGA-LGG cohort, carried out cluster analysis for typing twice on the basis of 19 anoikis-associated genes, and the subtypes were evaluated the differences in clinicopathological and biological features. ESTIMATE and single-sample gene set enrichment analysis were employed to examine the immunological milieu of LGGs, and enrichment analysis was used to look into the underlying biological mechanisms in LGGs. Cox regression analysis and the Least Absolute Shrinkage and Selection Operator regression algorithm were used to create a prediction scoring system. The scoring system was used for classifying LGG into high- and low- anoikis riskscore (anoiS) groups. The impact of the anoiS on the prognosis, standard treatment, and immunotherapy of patients with LGG was assessed using survival analysis and drug sensitivity analysis. Cell experiments were employed for the verification of the differential expression between LGG cells and normal cells of the anoikis gene team that regard CCT5 as the core. Results Based on the expression profiles of the 19 anoikis-associated genes, all individuals with LGG were classified into four subtypes and two macrosubtypes. The different macrosubtypes had significantly different biological characteristics, and the anoirgclusterBD subtype manifested a significantly bad prognosis and a high immune level of infiltration. And subsequent secondary genotyping also showed good prognostic discrimination. We further constructed an anoikis scoring system, anoiS. LGG patients having a high anoiS had a worse prognosis in comparison to those having a low anoiS. The high anoiS group exhibited larger levels of immune infiltration and superior immunotherapy efficacy than the low anoiS group. The high anoiS group was also more susceptible to temozolomide (TMZ) than the low anoiS group, according to a drug sensitivity analysis of TMZ. Conclusion This study constructed a scoring system for predicting the prognosis of patients with LGG and their responsive to TMZ and immunotherapy.
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Affiliation(s)
- Ganghua Zhang
- Department of Oncology, Third Xiangya Hospital, Central South University, Changsha, China
| | - Aiyan Chen
- Department of Oncology, Third Xiangya Hospital, Central South University, Changsha, China
| | - Jianing Fang
- Department of Oncology, Third Xiangya Hospital, Central South University, Changsha, China
| | - Anshan Wu
- Zhuzhou Hospital Affiliated to Xiangya School of Medicine, Central South University, Zhuzhou, China
| | - Guanjun Chen
- Department of Oncology, Third Xiangya Hospital, Central South University, Changsha, China
| | - Panpan Tai
- Department of Oncology, Third Xiangya Hospital, Central South University, Changsha, China
| | | | - Xinyu Chen
- Department of Oncology, Third Xiangya Hospital, Central South University, Changsha, China
| | - Ke Cao
- Department of Oncology, Third Xiangya Hospital, Central South University, Changsha, China
- *Correspondence: Ke Cao, ;
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Xin W, Zhang J, Zhang H, Ma X, Zhang Y, Li Y, Wang F. CLCA2 overexpression suppresses epithelial-to-mesenchymal transition in cervical cancer cells through inactivation of ERK/JNK/p38-MAPK signaling pathways. BMC Mol Cell Biol 2022; 23:44. [PMID: 36280802 PMCID: PMC9594891 DOI: 10.1186/s12860-022-00440-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Accepted: 08/19/2022] [Indexed: 11/10/2022] Open
Abstract
Cervical cancer is an important malignant tumor threatening the physical and mental health of women in the world. As a new calcium activated chloride channel protein, calcium activated chloride channel (CLCA2) plays an important role in tumorigenesis and development. But its role and exact regulatory mechanism in cervical cancer are still unclear. In our study, we found CLCA2 was significantly decreased in cervical cancer cells, and overexpression of CLCA2 inhibited the proliferation, migration and invasion, and promotes apoptosis of cervical cancer cells, and CLCA2 inhibited EMT (Epithelial-mesenchymal transition) through an p38 / JNK / ERK pathway. The results in vivo were consistent with those in vitro. In conclusion, overexpression of CLCA2 inhibited the progression of cervical cancer in vivo and in vitro. This may provide a theoretical basis for CLCA2 as a new indicator of clinical diagnosis and prognosis of cervical cancer or as a potential target of drug therapy.
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Affiliation(s)
- Wenhu Xin
- grid.411294.b0000 0004 1798 9345Department of Gynecology, Lanzhou University Second Hospital, Lanzhou, 730030 China ,grid.411294.b0000 0004 1798 9345The Second Clinical Medical College of Lanzhou University, Lanzhou, 730000 China
| | - Jian Zhang
- grid.411294.b0000 0004 1798 9345The Second Clinical Medical College of Lanzhou University, Lanzhou, 730000 China
| | - Haibin Zhang
- grid.411294.b0000 0004 1798 9345Department of Gynecology, Lanzhou University Second Hospital, Lanzhou, 730030 China
| | - Xueyao Ma
- grid.411294.b0000 0004 1798 9345Department of Gynecology, Lanzhou University Second Hospital, Lanzhou, 730030 China
| | - Yunzhong Zhang
- grid.411294.b0000 0004 1798 9345Department of Gynecology, Lanzhou University Second Hospital, Lanzhou, 730030 China
| | - Yufeng Li
- grid.411294.b0000 0004 1798 9345Department of Gynecology, Lanzhou University Second Hospital, Lanzhou, 730030 China
| | - Fang Wang
- grid.411294.b0000 0004 1798 9345The Second Clinical Medical College of Lanzhou University, Lanzhou, 730000 China ,grid.411294.b0000 0004 1798 9345Department of Reproductive Medicine, Lanzhou University Second Hospital, No.82, Cuiying Road, Chengguan District, Lanzhou, 730030 China
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Liu J, Qian K, Qin Z, Alshehri MD, Li Q, Tai Y. Cloud computing-enabled IIOT system for neurosurgical simulation using augmented reality data access. Exp Eye Res 2022; 220:109085. [DOI: 10.1016/j.exer.2022.109085] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Revised: 03/15/2022] [Accepted: 04/13/2022] [Indexed: 12/18/2022]
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Critchley WR, Fearnley GWF, Abdul-Zani I, Molina-Paris C, Bendtsen C, Zachary IC, Harrison MA, Ponnambalam S. Monitoring VEGF-Stimulated Calcium Ion Flux in Endothelial Cells. Methods Mol Biol 2022; 2475:113-124. [PMID: 35451752 DOI: 10.1007/978-1-0716-2217-9_7] [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] [Indexed: 11/29/2022]
Abstract
The endothelial response to vascular endothelial growth factor A (VEGF-A) regulates many aspects of animal physiology in health and disease. Such VEGF-A-regulated phenomena include vasculogenesis, angiogenesis, tumor growth and progression. VEGF-A binding to receptor tyrosine kinases such as vascular endothelial growth factor receptor 2 (VEGFR2 ) activates multiple signal transduction pathways and changes in homeostasis, metabolism, gene expression, cell proliferation, migration, and survival. One such VEGF-A-regulated response is a rapid rise in cytosolic calcium ion levels which modulates different biochemical events and impacts on endothelial-specific responses. Here, we present a series of detailed and robust protocols for evaluating ligand-stimulated cytosolic calcium ion flux in endothelial cells. By monitoring an endogenous endothelial transcription factor (NFATc2 ) which displays calcium-sensitive redistribution, we can assess the relevance of cytosolic calcium to protein function. This protocol can be easily applied to both adherent and non-adherent cultured cells to evaluate calcium ion flux in response to exogenous stimuli such as VEGF-A.
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Affiliation(s)
| | | | - Izma Abdul-Zani
- School of Molecular & Cellular Biology, University of Leeds, Leeds, UK
| | | | | | - Ian C Zachary
- Centre for Cardiovascular Biology and Medicine, University College London, London, UK
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Soeta K, Yamaguchi R, Iuchi K, Hisatomi H, Yokoyama C. Generation of Rat Monoclonal Antibody for Human IQGAP1 by Immunization of Three-Dimensional-Cultured Cancer Cells. Monoclon Antib Immunodiagn Immunother 2021; 40:118-123. [PMID: 34076498 DOI: 10.1089/mab.2020.0046] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
The scaffold protein IQ motif containing GTPase activating protein 1 (IQGAP1) is an adherens junction component in the epithelial tissue that binds many signaling and structural molecules to regulate biological processes. It is known that IQGAP1 is overexpressed in some tumors. In this study, we produced rat monoclonal antibodies (mAbs) through immunization of the lysate from three-dimensional (3D)-cultured DLD-1 cells to elucidate a characteristic feature of a tumor. In cancer research, 3D-cultured cancer cells are used as an intermediate model between in vitro cancer cell line cultures and in vivo tumors. Our results showed that mAb 7E11 recognized increasing antigen in the lysate of 3D-cultured cells comparing with two-dimensional-cultured cells, and its antigen is the human IQGAP1. Furthermore, we indicated that mAb 7E11 was used in immunoblotting, immunoprecipitation, and immunofluorescence staining. Therefore, it may be useful in the analysis of human cancer.
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Affiliation(s)
- Kenta Soeta
- Department of Biochemical Engineering, Graduate School of Science and Engineering, Yamagata University, Yonezawa, Japan
| | - Rina Yamaguchi
- Department of Biochemical Engineering, Graduate School of Science and Engineering, Yamagata University, Yonezawa, Japan
| | - Katsuya Iuchi
- Department of Materials and Life Science, Seikei University, Tokyo, Japan
| | - Hisashi Hisatomi
- Department of Materials and Life Science, Seikei University, Tokyo, Japan
| | - Chikako Yokoyama
- Department of Biochemical Engineering, Graduate School of Science and Engineering, Yamagata University, Yonezawa, Japan
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Gil-Hernández A, Arroyo-Campuzano M, Simoni-Nieves A, Zazueta C, Gomez-Quiroz LE, Silva-Palacios A. Relevance of Membrane Contact Sites in Cancer Progression. Front Cell Dev Biol 2021; 8:622215. [PMID: 33511135 PMCID: PMC7835521 DOI: 10.3389/fcell.2020.622215] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Accepted: 12/10/2020] [Indexed: 01/01/2023] Open
Abstract
Membrane contact sites (MCS) are typically defined as areas of proximity between heterologous or homologous membranes characterized by specific proteins. The study of MCS is considered as an emergent field that shows how crucial organelle interactions are in cell physiology. MCS regulate a myriad of physiological processes such as apoptosis, calcium, and lipid signaling, just to name a few. The membranal interactions between the endoplasmic reticulum (ER)–mitochondria, the ER–plasma membrane, and the vesicular traffic have received special attention in recent years, particularly in cancer research, in which it has been proposed that MCS regulate tumor metabolism and fate, contributing to their progression. However, as the therapeutic or diagnostic potential of MCS has not been fully revisited, in this review, we provide recent information on MCS relevance on calcium and lipid signaling in cancer cells and on its role in tumor progression. We also describe some proteins associated with MCS, like CERT, STIM1, VDAC, and Orai, that impact on cancer progression and that could be a possible diagnostic marker. Overall, these information might contribute to the understanding of the complex biology of cancer cells.
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Affiliation(s)
- Aurora Gil-Hernández
- Departamento de Biomedicina Cardiovascular, Instituto Nacional de Cardiología Ignacio Chávez, Mexico City, Mexico
| | - Miguel Arroyo-Campuzano
- Departamento de Biomedicina Cardiovascular, Instituto Nacional de Cardiología Ignacio Chávez, Mexico City, Mexico
| | - Arturo Simoni-Nieves
- Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, Mexico City, Mexico
| | - Cecilia Zazueta
- Departamento de Biomedicina Cardiovascular, Instituto Nacional de Cardiología Ignacio Chávez, Mexico City, Mexico
| | - Luis Enrique Gomez-Quiroz
- Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, Mexico City, Mexico
| | - Alejandro Silva-Palacios
- Departamento de Biomedicina Cardiovascular, Instituto Nacional de Cardiología Ignacio Chávez, Mexico City, Mexico
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