The replication vacuole of Legionella pneumophila makes contact with host mitochondria. In this issue of Cell Host & Microbe, Escoll et al. (2017) dissect the mechanisms of this interaction, the effect of the T4SS effector MitF on mitochondrial function, and the resultant metabolic reprogramming of infected cells to benefit the bacteria.
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http://dx.doi.org/10.1016/j.chom.2017.08.014 | DOI Listing |
Protein Sci
February 2025
Instituto de Biocomputación y Física de Sistemas Complejos (BIFI), Universidad de Zaragoza, Zaragoza, Spain.
PADI4 is one of the human isoforms of a family of enzymes involved in the conversion of arginine to citrulline. MDM2 is an E3 ubiquitin ligase that is critical for degradation of the tumor suppressor gene p53. We have previously shown that there is an interaction between MDM2 and PADI4 in cellulo, and that such interaction occurs through the N-terminal region of MDM2, N-MDM2, and in particular through residues Thr26, Val28, Phe91, and Lys98.
View Article and Find Full Text PDFCarbohydr Polym
January 2025
Key Laboratory of Precision and Intelligent Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, PR China. Electronic address:
Sustainable cellulose-graft-diblock copolymers (cellulose-graft-polyisoprene-block-polylactide, MCC-g-PI-b-PLLA, MCC was chemically-modified microcrystalline cellulose) were designed and delicately synthesized for the first time by a mild and facile procedure via combining ring-opening polymerization and reversible addition-fragmentation chain transfer polymerization techniques, which conquered the difficulties in synthesis due to the distinct chemical properties among the MCC backbone, PI and PLLA blocks. Two separate glass transition temperatures were detected for MCC-g-PI-b-PLLA copolymers by differential scanning calorimetry, indicative of microphase separation, consistent with small-angle X-ray scattering and atomic force microscopy measurements. The α-form crystals of PLLA outer blocks were revealed by wide-angle X-ray diffraction measurement.
View Article and Find Full Text PDFBiomaterials
April 2025
The Tenth Affiliated Hospital of Southern Medical University (Dongguan People's Hospital), Dongguan, Guangdong, 523059, China. Electronic address:
Amidst the therapeutic quandaries associated with triple-negative breast cancer (TNBC), an aggressive malignancy distinguished by its immune resistance and limited treatment avenues, the urgent need for innovative solutions is underscored. To conquer the dilemma, we present a groundbreaking approach that ingeniously employs DNA-fragments-containing exosomes (DNA-Exo) and the concept of "biological logic-gates" to achieve precise homing and controlled selective activation of ferroptosis and stimulator interferon genes (STING) pathways. Leveraging insights from our previous research, a nano-Trojan-horse, Fe@HMON@DNA-Exo, is engineered via in situ Fe synthesis within the glutathione (GSH)-responsiveness degradable hollow mesoporous organosilica nanoparticles (HMON) and subsequently enveloped in DNA-Exo derived from 7-ethyl-10-hydroxycamptothecin (SN38)-treated 4T1 cells.
View Article and Find Full Text PDFPlast Reconstr Surg Glob Open
July 2024
From Department of Plastic Surgery, AIC Kijabe Hospital, Kijabe, Kenya.
Background: Modern science has conquered seas, land, and space. Although great strides have been made in technology and infectious diseases, global surgery, which was reborn in 2015, has not made much progress. The burden of surgical disease in low- and middle-income countries remains seemingly unconquerable, and its growth unstoppable.
View Article and Find Full Text PDFBioinformatics
June 2024
Electrical and Computer Engineering Department, University of California San Diego, 9500 Gilman Dr, La Jolla, CA, 92093, United States.
Motivation: Phylogenetic placement of a query sequence on a backbone tree is increasingly used across biomedical sciences to identify the content of a sample from its DNA content. The accuracy of such analyses depends on the density of the backbone tree, making it crucial that placement methods scale to very large trees. Moreover, a new paradigm has been recently proposed to place sequences on the species tree using single-gene data.
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