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Cancer stem cell impact on clinical oncology

World Journal of Stem Cells 2018年第12期10卷 183-195页

作者： mariel e toledo-guzmán Gabriele D Bigoni-Ordonez Miguel Ibanez Hernandez elizabeth Ortiz-Sánchez Subdirección de Investigación Básica Instituto Nacional de CancerologíaMexico City 14080Mexico Departamento de Bioquímica Laboratorio de Terapia GénicaEscuela Nacional de Ciencias BiológicasPosgrado de Biomedicina y Biotecnología MolecularInstituto Politécnico NacionalMexico City 11340Mexico

Cancer is a widespread worldwide chronic disease. In most cases, the high mortality rate from cancer correlates with a lack of clear symptoms, which results in late diagnosis for patients, and consequently, advanced tumor disease with poor probabilities for cure, since many patients will show chemo-and radio-resistance. Several mechanisms have been studied to explain chemo-and radio-resistance to anti-tumor therapies, including cell signaling pathways, anti-apoptotic mechanisms, stemness, metabolism, and cellular phenotypes. Interestingly, the presence of cancer stem cells(CSCs), which are a subset of cells within the tumors, has been related to therapy resistance. In this review, we focus on evaluating the presence of CSCs in different tumors such as breast cancer, gastric cancer, lung cancer, and hematological neoplasias, highlighting studies where CSCs were identified in patient samples. It is evident that there has been a great drive to identify the cell surface phenotypes of CSCs so that they can be used as a tool for anti-tumor therapy treatment design. We also review the potential effect of nanoparticles, drugs, natural compounds, aldehyde dehydrogenase inhibitors, cell signaling inhibitors, and antibodies to treat CSCs from specific tumors. Taken together, we present an overview of the role of CSCs in tumorigenesis and how research is advancing to target these highly tumorigenic cells to improve oncology patient outcomes.

关键词： Cancer Targeted therapy Clinical outcome Drug resistance Cancer stem cells

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Concurrent Validity of a Virtual Version of Box and Block Test for Patients with neurological Disorders

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World Journal of neuroscience 2020年第1期10卷 79-89页

作者： M. Alvarez-Rodríguez e. López-Dolado M. Salas-Monedero V. Lozano-Berrio S. Ceruelo-Abajo A. Gil-Agudo A. de los Reyes-guzmán Biomechanics and Technical Aids Unit Hospital Nacional de Parapléjicos Toledo Spain Rehabilitation Department Hospital Nacional de Parapléjicos Toledo Spain

Background: The Box and Block clinical test is a validated and standardized scale for use in the clinical environment that allows the assessment of rough manipulative dexterity. Proposing virtual methods to carry out these assessments is an attempt to eliminate some of the subjectivity that the test may entail depending on the observer and the way in which the patient gives instructions. Applied to the assessment of skills after neurological pathologies, previous experiences in stroke patients have been found. So, this work was centered on the Spinal Cord Injury. Objective: To present the virtual application of the Box and Block scale, as well as details about its design and development for its manipulation based on Leap Motion Controller. Methodology: The relationship between the results obtained in the actual test and in the virtual application in healthy subjects and, mostly, patients with cervical spinal cord injury is analyzed, obtaining a high correlation index between both tests’ performance. Results: A high correlation index was obtained between both tests performance, the real and virtual version of the Box and Block Test. Conclusion: This virtual test can serve as an element to evaluate in the future the effectiveness of the RehabHand prototype based on virtual reality applications with a therapeutic and a rehabilitative sense that, manipulated from Leap Motion Controller, allow the improvement of the manipulative dexterity in patients with neurological diseases such as spinal cord injury.

关键词： Box and Block Test Leap Motion Controller Manual Dexterity Spinal Cord Injury Virtual Reality

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