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Through combined deletion of Vhl, Trp53 and Rb1 in renal epithelial cells, the authors develop a new mouse model of renal cell carcinoma that recapitulates the cellular and molecular features of a large proportion of human tumors. This model uncovers a role for primary-cilium-related genes in the development of the disease and provides a reliable platform for preclinical therapeutic studies.
Applying a new, more sensitive single-cell transcriptomics method to diagnosis, remission and progression samples from patients with chronic myeloid leukemia reveals insight into the heterogeneity of cells that resist treatment with targeted therapy, as well as into the dynamics of disease progression and its effects on nontransformed hematopoietic stem cells.
In a rodent model of viral infection, immune activation causes impairments in motor-learning-dependent cortical synaptic remodeling that are mediated by peripheral monocytes rather than by CNS-resident microglia.
MSK-IMPACT is a clinical sequencing platform able to detect genomic mutations, copy number alterations and structural variants in a panel of cancer-related genes. This assay is implemented prospectively to inform patient enrollment in genomically matched clinical trials at Memorial Sloan Kettering Cancer Center (MSKCC). Sequencing results of tumor and matched normal tissue from a cohort of >10,000 patients with detailed clinical annotation provide an overview of the genomic landscape of advanced solid cancers and bring new insights into molecularly guided cancer therapy.
Toll-like receptor (TLR) 4 is a key mediator of non-alcoholic fatty liver disease progression. Targeting TLR4 degradation via the lysosome pathway improves outcome in mouse and monkey models of this condition.
In rat models of spinal cord injury, the region of the spinal cord below the site of injury becomes hypoxic owing to inadequate blood flow. This effect on blood flow is due to increased production of neurotransmitters known as ‘trace amines,’ which act on pericytes to constrict blood vessels. Alleviation of hypoxia by hyperoxic breathing or inhibition of trace amine synthesis or action improves locomotor function in the injured rats.
Targeting NETosis alleviates type-2 immunopathology induced by rhinovirus infection in a mouse model of airway hypersensitivity, and correlative data suggest that a similar mechanism may operate in human rhinovirus-exacerbated asthma.
Splenic marginal zone B cells suppress atherosclerosis in mice by dampening the proatherogenic T follicular helper response via a PDL1-dependent interaction with T follicular helper cells.
In contrast to previously reported findings, M2-like polarized macrophages are not a source of catecholamines and do not contribute to browning of the fat.
Thymosin α1 is used in the clinic as a treatment in viral disease and acts as an anti-inflammatory. Here it was found to also correct the misfolding of mutant CTFR and potentiate its activity, thus improving outcome in a mouse model of cystic fibrosis.
During malignant transformation, the ability of mammary epithelial cells to cope with oncogene-induced DNA damage and avoid chromosomal instability is determined by stemness-related expression of the canonical epithelial-to-mesenchymal transition transcription factor ZEB1 and its target MSRB3, a methionine sulfoxide reductase involved in antioxidant defense.
The scavenger receptor MSR1 contributes to the clearance of damage-associated molecular patterns (DAMPs) by infiltrating myeloid cells in the post-stroke rodent brain. Myeloid cell MSR1 deficiency impairs clearance and exacerbates stroke-induced impairments, whereas a pharmacological intervention to boost MSR1 expression improves pathological and functional outcomes.
Activation of dectin-1-dependent signaling in macrophages through ligation by galectin 9 promotes an immunosuppressive, protumorigenic microenvironment in pancreatic adenocarcinoma (PDA). Blocking dectin 1 ligation restores anti-tumor immunity and delays tumor growth, thus offering a novel strategy for improving the effectiveness of immunotherapy in patients with PDA.
The ability of the heart to withstand pressure overload, as occurs in heart failure, depends on a multi-organ circuit, in which sympathetic activation of the kidney leads to release of the cytokine CSF2 into the circulation, stimulating cardiac-resident macrophages that protect the heart.
The cytokine oncostatin M drives intestinal inflammation in mice, and its abundance in the intestine of patients with inflammatory bowel disease predicts response to tumor necrosis factor–neutralizing therapy.
The intrinsic resistance of BCR-ABL-expressing chronic myeloid leukemia stem cells to treatment with tyrosine-kinase inhibitors requires growth-factor signaling through the proteins c-Fos and DUSP1. Combined inhibition of BCR-ABL, c-Fos, and DUSP1 eradicated leukemia in vivo, pointing to a new therapeutic strategy for kinase-driven leukemias.
The G-protein-coupled receptor GPR124, acting through the canonical Wnt pathway, is required for the maintenance of blood–brain barrier function in mouse models of stroke and glioblastoma.
Whereas cisplatin and carboplatin kill cancer cells by inducing DNA damage, another platinum derivative, oxaliplatin, induces cell death by triggering ribosome biogenesis stress.