1,720,996 research outputs found
A cDNA clone representative of a novel splicing pattern of the D. melanogaster dunce gene.
The Emerging Role of Macrophages in Chronic Obstructive Pulmonary Disease: The Potential Impact of Oxidative Stress and Extracellular Vesicle on Macrophage Polarization and Function
Chronic obstructive pulmonary disease (COPD) is one of the most common airway diseases, and it is considered a major global health problem. Macrophages are the most representative immune cells in the respiratory tract, given their role in surveying airways, removing cellular debris, immune surveillance, and resolving inflammation. Macrophages exert their functions by adopting phenotypical changes based on the stimuli they receive from the surrounding tissue. This plasticity is described as M1/M2 macrophage polarization, which consists of a strictly coordinated process leading to a difference in the expression of surface markers, the production of specific factors, and the execution of biological activities. This review focuses on the role played by macrophages in COPD and their implication in inflammatory and oxidative stress processes. Particular attention is on macrophage polarization, given macrophage plasticity is a key feature in COPD. We also discuss the regulatory influence of extracellular vesicles (EVs) in cell-to-cell communications. EV composition and cargo may influence many COPD-related aspects, including inflammation, tissue remodeling, and macrophage dysfunctions. These findings could be useful for better addressing the role of macrophages in the complex pathogenesis and outcomes of COPD
A cDNA clone representative of a novel splicing pattern of the D. melanogaster dunce gene.
Expressional and functional analysis of the male-specific cluster mst36F during Drosophila spermatogenesis.
mst36Fa and mst36Fb are two male-specific genes that are part of a novel gene family recently characterized in Drosophila melanogaster. The genes are strictly clustered and show an identical tissue and temporal expression pattern limited to the male germline. Here we demonstrate that the transcription of these two genes, which is triggered by different cis regulatory elements, responds to the same testisspecific factors encoded by the aly and can class meiotic arrest genes. RNA interference was used to decrease expression of these two genes. We obtained a reduction of fertility in the transgenic adult males compared to the wild type. These data suggest that the Mst36Fa and Mst36Fb proteins may have an important role in the production of functional sperm
Tosca: a Drosophila gene encoding a nuclease specifically expressed in the female germline.
Effect of the ecd-1 mutation on the transcription of the 3C11-12 polytenic region of Drosophila melanogaster
Molecular characterization of a new gene of Drosophila melanogaster with maternal effect
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