Renal cell carcinoma (RCC) is an aggressive malignancy originating from the renal parenchyma, often leading to high mortality due to local invasion and distant metastasis. MicroRNAs (miRNAs) play essential roles in RCC progression. Through miRNA sequencing, we identified significant upregulation of miR-222-3p in metastatic RCC tissues. Exosomes from highly metastatic RCC cells were found to transfer miR-222-3p to low-metastatic cells, enhancing their migration and invasion. Mechanistically, miR-222-3p directly targets the 3' untranslated region (3'UTR) of the tumor-suppressor TRPS1, reducing its expression. TRPS1 downregulation releases its inhibitory effect on ZEB1, a key regulator of epithelial-mesenchymal transition (EMT), thereby promoting EMT and metastatic traits. ZEB1 further transactivates miR-222-3p, establishing a positive feedback loop. Additionally, miR-222-3p promotes a pre-metastatic niche by inducing M2 macrophage polarization, facilitating distant metastasis. These findings highlight miR-222-3p as a critical driver of RCC metastasis and suggest its potential as a diagnostic marker and therapeutic target for RCC.
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http://dx.doi.org/10.1038/s41420-025-02385-0 | DOI Listing |
PNAS Nexus
March 2025
Department of Psychology, University of Toronto, 100 St. George Street, Toronto, Ontario, Canada M5S 3G3.
Despite often being perceived as morally objectionable, stereotypes are a common feature of social groups, a phenomenon that has often been attributed to biased motivations or limits on the ability to process information. We argue that one reason for this continued prevalence is that preexisting expectations about how others will behave, in the context of social coordination, can change the behaviors of one's social partners, creating the very stereotype one expected to see, even in the absence of other potential sources of stereotyping. We use a computational model of dynamic social coordination to illustrate how this "feedback loop" can emerge, engendering and entrenching role-consistent stereotypic behavior and then show that human behavior on the task generates a comparable feedback loop.
View Article and Find Full Text PDFNature
March 2025
Institute of Physics, Universiteit van Amsterdam, Amsterdam, The Netherlands.
Active systems composed of energy-generating microscopic constituents are a promising platform to create autonomous functional materials that can, for example, locomote through complex and unpredictable environments. Yet coaxing these energy sources into useful mechanical work has proved challenging. Here we engineer active solids based on centimetre-scale building blocks that perform adaptive locomotion.
View Article and Find Full Text PDFCell Death Discov
March 2025
Department of Urology, Mianyang Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Mianyang, China.
Renal cell carcinoma (RCC) is an aggressive malignancy originating from the renal parenchyma, often leading to high mortality due to local invasion and distant metastasis. MicroRNAs (miRNAs) play essential roles in RCC progression. Through miRNA sequencing, we identified significant upregulation of miR-222-3p in metastatic RCC tissues.
View Article and Find Full Text PDFCurr Neuropharmacol
March 2025
Department of Neurosurgery and Neurology, Key Laboratory of Precise Treatment and Clinical Translational Research of Neurological Diseases, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China.
Background: The sodium pump α3 subunit (ATP1A3) is associated with various brain's physiological and pathological mechanisms. However, its molecular mechanisms and cellular targets in glioblastoma (GBM) are poorly understood.
Methods: Bioinformatics and phosphor-proteomics analysis, target fishing experiment, confocal immunofluorescence, molecular cloning, and western blot techniques were carried out to elucidate probable downstream signaling pathways.
Curr Top Behav Neurosci
March 2025
Center for Social and Affective Neuroscience, Linköping University, Linköping, Sweden.
Slow caressing of the skin activates C-tactile fibers in the periphery and the posterior insula cortex. Because of this, Bud Craig considered affective touch to be an interoceptive modality. Through the tactile sense, we perceive the border of our own body and the largest of our organs, the skin.
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