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Izumi Y, Matsuo K, Yokoya A. Secondary structural analyses of histone H2A-H2B proteins extracted from heated cells. Chirality 2023; 35:165-171. [PMID: 36578136 DOI: 10.1002/chir.23529] [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: 10/31/2022] [Revised: 12/18/2022] [Accepted: 12/22/2022] [Indexed: 12/30/2022]
Abstract
Histone proteins, building blocks of chromatins, participate in enzymatic reactions in cells heated at around 45°C though in vitro the denaturation of histones significantly proceeds at a similar temperature. It implies that unidentified mechanisms prevent thermal denaturation of histones in vivo. However, studies on the histone structures in the heated cells have been scarce. Here, we analyzed the secondary structures of histone H2A-H2B proteins originating from the heated cells using circular dichroism spectroscopy. The secondary structure contents of the H2A-H2B extracted from the heated cells differed from those of H2A-H2B both native and denatured in vitro but reverted to the native structures by incubating the heated cells at 37°C within 2 h. Such structural flexibility may play a role in protecting genomic functions governed by chromatin structures from heat stresses.
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Affiliation(s)
- Yudai Izumi
- Institute for Quantum Life Science, Quantum Life and Medical Science Directorate, National Institutes for Quantum Science and Technology (QST), Ibaraki, Japan
| | - Koichi Matsuo
- Hiroshima Synchrotron Radiation Research Center (HiSOR), Hiroshima University, Higashi-Hiroshima, Hiroshima, Japan
| | - Akinari Yokoya
- Institute for Quantum Life Science, Quantum Life and Medical Science Directorate, National Institutes for Quantum Science and Technology (QST), Ibaraki, Japan
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de la Asunción-Nadal V, Franco C, Veciana A, Ning S, Terzopoulou A, Sevim S, Chen XZ, Gong D, Cai J, Wendel-Garcia PD, Jurado-Sánchez B, Escarpa A, Puigmartí-Luis J, Pané S. MoSBOTs: Magnetically Driven Biotemplated MoS 2 -Based Microrobots for Biomedical Applications. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2203821. [PMID: 35867042 DOI: 10.1002/smll.202203821] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Indexed: 06/15/2023]
Abstract
2D layered molybdenum disulfide (MoS2 ) nanomaterials are a promising platform for biomedical applications, particularly due to its high biocompatibility characteristics, mechanical and electrical properties, and flexible functionalization. Additionally, the bandgap of MoS2 can be engineered to absorb light over a wide range of wavelengths, which can then be transformed into local heat for applications in photothermal tissue ablation and regeneration. However, limitations such as poor stability of aqueous dispersions and low accumulation in affected tissues impair the full realization of MoS2 for biomedical applications. To overcome such challenges, herein, multifunctional MoS2 -based magnetic helical microrobots (MoSBOTs) using cyanobacterium Spirulina platensis are proposed as biotemplate for therapeutic and biorecognition applications. The cytocompatible microrobots combine remote magnetic navigation with MoS2 photothermal activity under near-infrared irradiation. The resulting photoabsorbent features of the MoSBOTs are exploited for targeted photothermal ablation of cancer cells and on-the-fly biorecognition in minimally invasive oncotherapy applications. The proposed multi-therapeutic MoSBOTs hold considerable potential for a myriad of cancer treatment and diagnostic-related applications, circumventing current challenges of ablative procedures.
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Affiliation(s)
- Victor de la Asunción-Nadal
- Institute of Robotics and Intelligent Systems, ETH Zurich, Tannenstrasse 3, Zurich, CH 8092, Switzerland
- Department of Analytical Chemistry, Physical Chemistry and Chemical Engineering, Universidad de Alcalá, Alcalá de Henares, Madrid, E-28871, Spain
| | - Carlos Franco
- Institute of Robotics and Intelligent Systems, ETH Zurich, Tannenstrasse 3, Zurich, CH 8092, Switzerland
| | - Andrea Veciana
- Institute of Robotics and Intelligent Systems, ETH Zurich, Tannenstrasse 3, Zurich, CH 8092, Switzerland
| | - Shen Ning
- Institute of Robotics and Intelligent Systems, ETH Zurich, Tannenstrasse 3, Zurich, CH 8092, Switzerland
| | - Anastasia Terzopoulou
- Institute of Robotics and Intelligent Systems, ETH Zurich, Tannenstrasse 3, Zurich, CH 8092, Switzerland
| | - Semih Sevim
- Institute of Robotics and Intelligent Systems, ETH Zurich, Tannenstrasse 3, Zurich, CH 8092, Switzerland
| | - Xiang-Zhong Chen
- Institute of Robotics and Intelligent Systems, ETH Zurich, Tannenstrasse 3, Zurich, CH 8092, Switzerland
| | - De Gong
- School of Mechanical Engineering and Automation Beihang University, No. 37 Xueyuan Road, Haidian District, Beijing, 100191, P. R. China
| | - Jun Cai
- School of Mechanical Engineering and Automation Beihang University, No. 37 Xueyuan Road, Haidian District, Beijing, 100191, P. R. China
| | - Pedro D Wendel-Garcia
- Institute of Intensive Care Medicine, University Hospital of Zurich, Rämistrasse 100, Zurich, CH 8091, Switzerland
| | - Beatriz Jurado-Sánchez
- Department of Analytical Chemistry, Physical Chemistry and Chemical Engineering, Universidad de Alcalá, Alcalá de Henares, Madrid, E-28871, Spain
- Chemical Research Institute "Andres M. Del Rio", Universidad de Alcalá, Alcalá de Henares, Madrid, E-28871, Spain
| | - Alberto Escarpa
- Department of Analytical Chemistry, Physical Chemistry and Chemical Engineering, Universidad de Alcalá, Alcalá de Henares, Madrid, E-28871, Spain
- Chemical Research Institute "Andres M. Del Rio", Universidad de Alcalá, Alcalá de Henares, Madrid, E-28871, Spain
| | - Josep Puigmartí-Luis
- Departament de Ciència dels Materials i Química Física Institut de Química Teòrica i Computacional, Barcelona, 08028, Spain
- Institució Catalana de Recerca i Estudis Avançats (ICREA), Pg. Lluís Companys 23, Barcelona, 08010, Spain
| | - Salvador Pané
- Institute of Robotics and Intelligent Systems, ETH Zurich, Tannenstrasse 3, Zurich, CH 8092, Switzerland
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Zhang J, Fu B, Li M, Mi S. Secretome of Activated Fibroblasts Induced by Exosomes for the Discovery of Biomarkers in Non-Small Cell Lung Cancer. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2004750. [PMID: 33373110 DOI: 10.1002/smll.202004750] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 10/16/2020] [Indexed: 06/12/2023]
Abstract
Molecules involved in crosstalk between tumor cells and fibroblasts play vital roles in tumor progression. Extracellular matrix proteins, whose abundance is altered after being affected by tumor-derived exosomes, possess considerable promise as biomarkers for diagnosis or prognosis. In this study, quantitative proteomics is employed to determine the abundance of proteins secreted by normal fibroblasts and exosome-activated fibroblasts, which first identify differentially secreted proteins affected by lung cancer cell-derived exosomes. Based on the differentially secreted proteins and multiple independent datasets comprising 1897 patient samples with non-small cell lung carcinoma or other lung diseases, a diagnostic marker is identified that can effectively distinguish tumor tissues from normal tissue, as well as tumor-associated stroma from normal stroma, and a five-gene prognostic signature is presented with independent prognostic impact to identify patients who may require further adjuvant therapy after surgical resection. In addition, the secretome provides novel potential targets for clinical treatment.
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Affiliation(s)
- Jian Zhang
- CAS Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences, China National Center for Bioinformation, Beijing, 100101, China
- Key Laboratory of Cancer Prevention and Therapy, Tianjin Medical University Cancer Institute and Hospital, Tianjin Medical University, Tianjin, 300060, China
| | - Bin Fu
- Proteomics Technological Platform, National Center for Proteins Sciences, Beijing, 102206, China
| | - Meng Li
- CAS Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences, China National Center for Bioinformation, Beijing, 100101, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Shuangli Mi
- CAS Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences, China National Center for Bioinformation, Beijing, 100101, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
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Carina V, Costa V, Sartori M, Bellavia D, De Luca A, Raimondi L, Fini M, Giavaresi G. Adjuvant Biophysical Therapies in Osteosarcoma. Cancers (Basel) 2019; 11:cancers11030348. [PMID: 30871044 PMCID: PMC6468347 DOI: 10.3390/cancers11030348] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Revised: 02/28/2019] [Accepted: 03/08/2019] [Indexed: 12/22/2022] Open
Abstract
Osteosarcoma (OS) is a primary bone sarcoma, manifesting as osteogenesis by malignant cells. Nowadays, patients’ quality of life has been improved, however continuing high rates of limb amputation, pulmonary metastasis and drug toxicity, remain unresolved issues. Thus, effective osteosarcoma therapies are still required. Recently, the potentialities of biophysical treatments in osteosarcoma have been evaluated and seem to offer a promising future, thanks in this field as they are less invasive. Several approaches have been investigated such as hyperthermia (HT), high intensity focused ultrasound (HIFU), low intensity pulsed ultrasound (LIPUS) and sono- and photodynamic therapies (SDT, PDT). This review aims to summarize in vitro and in vivo studies and clinical trials employing biophysical stimuli in osteosarcoma treatment. The findings underscore how the technological development of biophysical therapies might represent an adjuvant role and, in some cases, alternative role to the surgery, radio and chemotherapy treatment of OS. Among them, the most promising are HIFU and HT, which are already employed in OS patient treatment, while LIPUS/SDT and PDT seem to be particularly interesting for their low toxicity.
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Affiliation(s)
- Valeria Carina
- IRCCS-Istituto Ortopedico Rizzoli, via Di Barbiano 1/10, 40136 Bologna, Italy.
| | - Viviana Costa
- IRCCS-Istituto Ortopedico Rizzoli, via Di Barbiano 1/10, 40136 Bologna, Italy.
| | - Maria Sartori
- IRCCS-Istituto Ortopedico Rizzoli, via Di Barbiano 1/10, 40136 Bologna, Italy.
| | - Daniele Bellavia
- IRCCS-Istituto Ortopedico Rizzoli, via Di Barbiano 1/10, 40136 Bologna, Italy.
| | - Angela De Luca
- IRCCS-Istituto Ortopedico Rizzoli, via Di Barbiano 1/10, 40136 Bologna, Italy.
| | - Lavinia Raimondi
- IRCCS-Istituto Ortopedico Rizzoli, via Di Barbiano 1/10, 40136 Bologna, Italy.
| | - Milena Fini
- IRCCS-Istituto Ortopedico Rizzoli, via Di Barbiano 1/10, 40136 Bologna, Italy.
| | - Gianluca Giavaresi
- IRCCS-Istituto Ortopedico Rizzoli, via Di Barbiano 1/10, 40136 Bologna, Italy.
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