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Human epidermal growth factor receptor 2 (HER2, also known as ERBB2) signaling promotes cell growth and differentiation, and is overexpressed in several tumor types, including breast, gastric and colorectal cancer. HER2-targeted therapies have shown clinical activity against these tumor types, resulting in regulatory approvals. However, the efficacy of HER2 therapies in tumors with HER2 mutations has not been widely investigated.
View Article and Find Full Text PDFDiffuse Noxious Inhibitory Controls in Chronic Pain States: Insights from Pre-Clinical Studies.
Int J Mol Sci
January 2025
Instituto de Investigação e Inovação em Saúde da Universidade do Porto-i3S, R. Alfredo Allen 208, 4200-135 Porto, Portugal.
Diffuse noxious inhibitory control (DNIC), also known as conditioned pain modulation (CPM) in humans, is a paradigm wherein the heterotopic application of a noxious stimulus results in the attenuation of another spatially distant noxious input. The pre-clinical and clinical studies show the involvement of several neurochemical systems in DNIC/CPM and point to a major contribution of the noradrenergic, serotonergic, and opioidergic systems. Here, we thoroughly review the latest data on the monoaminergic and opioidergic studies, focusing particularly on pre-clinical models of chronic pain.
View Article and Find Full Text PDFSymplectic Bregman Divergences.
Entropy (Basel)
December 2024
Sony Computer Science Laboratories Inc., Tokyo 141-0022, Japan.
We present a generalization of Bregman divergences in finite-dimensional symplectic vector spaces that we term symplectic Bregman divergences. Symplectic Bregman divergences are derived from a symplectic generalization of the Fenchel-Young inequality which relies on the notion of symplectic subdifferentials. The symplectic Fenchel-Young inequality is obtained using the symplectic Fenchel transform which is defined with respect to the symplectic form.
View Article and Find Full Text PDFIndividual Rumination in Adult Cancer Care: A Concept Analysis.
Semin Oncol Nurs
January 2025
School of Nursing, Midwifery and Health Systems, University College Dublin (UCD), Dublin, Ireland.
Objective: To conceptualize rumination in adult cancer care.
Methods: Walker and Avant's concept analysis method was used to examine rumination in adults with cancer. A systematic search was conducted across psychology, nursing, medicine, and public health disciplines in PsycINFO, PubMed, Web of Science, CINAHL, and Scopus databases from their inception to April 2024.
Intratumor heterogeneity of EGFR expression mediates targeted therapy resistance and formation of drug tolerant microenvironment.
Nat Commun
January 2025
Translational Immunology Research Program (TRIMM), Research Programs Unit, Faculty of Medicine, University of Helsinki, Helsinki, Finland.
Epidermal growth factor receptor (EGFR) tyrosine kinase inhibitors are commonly used to treat non-small cell lung cancers with EGFR mutations, but drug resistance often emerges. Intratumor heterogeneity is a known cause of targeted therapy resistance and is considered a major factor in treatment failure. This study identifies clones of EGFR-mutant non-small cell lung tumors expressing low levels of both wild-type and mutant EGFR protein.
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