Dataset Information

Feeling Stress: The Mechanics of Cancer Progression and Aggression.

ABSTRACT: The tumor microenvironment is a dynamic landscape in which the physical and mechanical properties evolve dramatically throughout cancer progression. These changes are driven by enhanced tumor cell contractility and expansion of the growing tumor mass, as well as through alterations to the material properties of the surrounding extracellular matrix (ECM). Consequently, tumor cells are exposed to a number of different mechanical inputs including cell-cell and cell-ECM tension, compression stress, interstitial fluid pressure and shear stress. Oncogenes engage signaling pathways that are activated in response to mechanical stress, thereby reworking the cell's intrinsic response to exogenous mechanical stimuli, enhancing intracellular tension via elevated actomyosin contraction, and influencing ECM stiffness and tissue morphology. In addition to altering their intracellular tension and remodeling the microenvironment, cells actively respond to these mechanical perturbations phenotypically through modification of gene expression. Herein, we present a description of the physical changes that promote tumor progression and aggression, discuss their interrelationship and highlight emerging therapeutic strategies to alleviate the mechanical stresses driving cancer to malignancy.

SUBMITTER: Northcott JM

PROVIDER: S-EPMC5835517 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature

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Feeling Stress: The Mechanics of Cancer Progression and Aggression.

Northcott Josette M JM Dean Ivory S IS Mouw Janna K JK Weaver Valerie M VM

Frontiers in cell and developmental biology 20180228

The tumor microenvironment is a dynamic landscape in which the physical and mechanical properties evolve dramatically throughout cancer progression. These changes are driven by enhanced tumor cell contractility and expansion of the growing tumor mass, as well as through alterations to the material properties of the surrounding extracellular matrix (ECM). Consequently, tumor cells are exposed to a number of different mechanical inputs including cell-cell and cell-ECM tension, compression stress, ...[more]

PMID: 29541636

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Project description:BackgroundPrevious studies have established that sex workers experience discrimination and stigma within healthcare settings, limiting their access and receipt of culturally safe care. These barriers impact sex workers' ability and desire to routinely engage with the healthcare system. Community empowerment interventions that are culturally safe offer an effective strategy to improve access to services and health outcomes for sex workers.ObjectivesThis project was designed to inform the development of community empowerment interventions for sex workers by understanding their self-management, health promotion, and harm reduction needs.MethodsIn-depth interviews (N = 21) were conducted with sex workers in Chicago. Transcripts of individual interviews were analyzed in Dedoose using rapid content analysis.ResultsParticipants had a mean age of 32.7 years; 45% identified as White, 20% as Black, 15% as Latinx, and 20% as multiple races; 80% identified as Queer. A total of 52% of participants identified as cisgender women, 33% as transgender or gender fluid, 10% as cisgender men, and 5% declined to answer. Themes of self-management practices, stigmatizing and culturally unsafe experiences with healthcare providers, and the prohibitive cost of healthcare emerged as consistent barriers to routinely accessing healthcare. Despite identifying patient-centered care as a desired healthcare model, many participants did not report receiving care that was respectful or culturally responsive. Themes also included developing strategies to identify sex worker-safe care providers, creating false self-narratives and health histories in order to safely access care, and creating self-care routines that serve as alternatives to primary care.ConclusionOur findings demonstrate how patient-centered care for sex-workers in Chicago might include holistic wellness exercises, accessible pay scales for services, and destigmatizing healthcare praxis. Focus on culturally safe healthcare provision presents needs beyond individualized, or even community-level, interventions. Ongoing provider training and inbuilt, systemic responsivity to patient needs and contexts is crucial to patient-centered care.

Dataset Information

Feeling Stress: The Mechanics of Cancer Progression and Aggression.

Publications

Feeling Stress: The Mechanics of Cancer Progression and Aggression.

Similar Datasets

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