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Feline E Dijkgraaf et al.
Nature immunology, 20(6), 756-764 (2019-05-22)
Emerging data show that tissue-resident memory T (TRM) cells play an important protective role at murine and human barrier sites. TRM cells in the epidermis of mouse skin patrol their surroundings and rapidly respond when antigens are encountered. However, whether
Carol Cho et al.
Nature communications, 10(1), 5764-5764 (2019-12-19)
The fundamental unit of chromatin, the nucleosome, is an intricate structure that requires histone chaperones for assembly. ATAD2 AAA+ ATPases are a family of histone chaperones that regulate nucleosome density and chromatin dynamics. Here, we demonstrate that the fission yeast ATAD2
S Boye et al.
Biomacromolecules, 13(12), 4222-4235 (2012-11-01)
Glycopolymers are promising materials in the field of biomedical applications and in the fabrication of supramolecular structures with specific functions. For tunable design of supramolecular structures, glycopolymer architectures with specific properties (e.g., controlled self-assembly) are needed. Using the concept of
Monika Scholz et al.
Soft matter, 16(8), 2135-2140 (2020-02-06)
Within cells, crosslinking proteins organize cytoskeletal filaments both temporally and spatially to create dynamic and structurally diverse networks. Molecular motors move on these networks for both force generation and transport processes. How the transport statistics depend on the network architecture
Yu-Hung Lin et al.
Scientific reports, 9(1), 13171-13171 (2019-09-13)
The topology of helix-bundle membrane proteins provides low-resolution structural information with regard to the number and orientation of membrane-spanning helices, as well as the sidedness of intra/extra-cellular domains. In the past decades, several strategies have been developed to experimentally determine
Christos Papadimitriou et al.
Developmental cell, 46(1), 85-101 (2018-07-06)
Neural stem cells (NSCs) constitute an endogenous reservoir for neurons that could potentially be harnessed for regenerative therapies in disease contexts such as neurodegeneration. However, in Alzheimer's disease (AD), NSCs lose plasticity and thus possible regenerative capacity. We investigate how
Xiao Huang et al.
Nature nanotechnology, 16(2), 214-223 (2020-12-16)
Biomaterials can improve the safety and presentation of therapeutic agents for effective immunotherapy, and a high level of control over surface functionalization is essential for immune cell modulation. Here, we developed biocompatible immune cell-engaging particles (ICEp) that use synthetic short
Tetrahedron Letters, 48, 4413-4413 (2007)
Ommolbanin Asadpour et al.
Cell journal, 22(1), 30-39 (2019-10-14)
The purpose of this study was to develop multivalent antibody constructs via grafting anti-HER2 antibodies, including Herceptin and oligoclonal-variable domain of heavy chain antibodies (VHHs), onto liposome membranes to enhance antibody activity and compare their effect on phospholipase C (PLC)
Pradeep K Shukla et al.
FASEB journal : official publication of the Federation of American Societies for Experimental Biology, 34(9), 11641-11657 (2020-07-13)
The tight junction (TJ) and barrier function of colonic epithelium is highly sensitive to ionizing radiation. We evaluated the effect of lysophosphatidic acid (LPA) and its analog, Radioprotein-1, on γ-radiation-induced colonic epithelial barrier dysfunction using Caco-2 and m-ICC12 cell monolayers
Soyoung Kang et al.
Physics in medicine and biology, 64(4), 045013-045013 (2019-01-18)
Nanoparticle (NP) contrast agents targeted to cancer biomarkers are increasingly being engineered for the early detection of cancer, guidance of therapy, and monitoring of response. There have been recent efforts to topically apply biomarker-targeted NPs on tissue surfaces to image
Nadine S Rösener et al.
Communications biology, 3(1), 365-365 (2020-07-11)
The interaction of prion protein (PrP) and α-synuclein (αSyn) oligomers causes synaptic impairment that might trigger Parkinson's disease and other synucleinopathies. Here, we report that αSyn oligomers (αSynO) cluster with human PrP (huPrP) into micron-sized condensates. Multivalency of αSyn within
Bradley W Davis et al.
Biophysical journal, 109(10), 2182-2194 (2015-11-21)
Subcellular compartmentalization of biomolecules and their reactions is common in biology and provides a general strategy for improving and/or controlling kinetics in metabolic pathways that contain multiple sequential enzymes. Enzymes can be colocalized in multiprotein complexes, on scaffolds or inside
Oliver Binas et al.
Nucleic acids research, 48(13), 7385-7403 (2020-06-04)
Adenylate/uridylate-rich elements (AREs) are the most common cis-regulatory elements in the 3'-untranslated region (UTR) of mRNAs, where they fine-tune turnover by mediating mRNA decay. They increase plasticity and efficacy of mRNA regulation and are recognized by several ARE-specific RNA-binding proteins
Nathan B P Adams et al.
The Biochemical journal, 464(3), 315-322 (2014-12-05)
Magnesium chelatase (MgCH) initiates chlorophyll biosynthesis by catalysing the ATP-dependent insertion of Mg2+ into protoporphyrin. This large enzyme complex comprises ChlH, I and D subunits, with I and D involved in ATP hydrolysis, and H the protein that handles the
Kendra L Furber et al.
Journal of chemical biology, 2(1), 27-37 (2009-07-02)
Ca(2+)-triggered membrane fusion is the defining step of exocytosis. Isolated urchin cortical vesicles (CV) provide a stage-specific preparation to study the mechanisms by which Ca(2+) triggers the merger of two apposed native membranes. Thiol-reactive reagents that alkylate free sulfhydryl groups
Hylkje J Geertsema et al.
Biophysical journal, 108(4), 949-956 (2015-02-19)
Single-molecule fluorescence microscopy is a powerful tool for observing biomolecular interactions with high spatial and temporal resolution. Detecting fluorescent signals from individual labeled proteins above high levels of background fluorescence remains challenging, however. For this reason, the concentrations of labeled
Hermes Taylor-Weiner et al.
Journal of cell science, 128(10), 1961-1968 (2015-04-25)
Pluripotent embryonic stem cells (ESCs) exert low-traction forces on their niche in vitro whereas specification to definitive endoderm in vivo coincides with force-mediated motility, suggesting a differentiation-mediated switch. However, the onset of contractility and extent to which force-mediated integrin signaling
Amita Gorur et al.
The Journal of cell biology, 216(6), 1745-1759 (2017-04-22)
The coat protein complex II (COPII) is essential for the transport of large cargo, such as 300-nm procollagen I (PC1) molecules, from the endoplasmic reticulum (ER) to the Golgi. Previous work has shown that the CUL3-KLHL12 complex increases the size
Sayantan Mitra et al.
Journal of virology, 93(21) (2019-08-04)
Influenza A virus (IAV) nonstructural protein 1 (NS1), a potent antagonist of the host immune response, is capable of interacting with RNA and a wide range of cellular proteins. NS1 consists of an RNA-binding domain (RBD) and an effector domain
Rui Bai et al.
Biochemical and biophysical research communications, 448(4), 372-378 (2014-05-06)
Atherosclerosis (As) is characterized by chronic inflammation and is a major cause of human mortality. ICAM-1-mediated adhesion of leukocytes in vessel walls plays an important role in the pathogenesis of atherosclerosis. Two single nucleotide polymorphisms (SNPs) of human intercellular adhesion
Aleksandra M Urbanska et al.
Cancer biotherapy & radiopharmaceuticals, 35(6), 459-473 (2020-02-06)
An α particle-emitting nanodrug that is a potent and specific antitumor agent and also prompts significant remodeling of local immunity in the tumor microenvironment (TME) has been developed and may impact the treatment of melanoma. Biocompatible ultrasmall fluorescent core-shell silica
Dhara Patel et al.
American journal of physiology. Regulatory, integrative and comparative physiology, 307(4), R426-R433 (2014-06-13)
Exposing mice to a chronic hypoxic treatment (10% oxygen, 21 days) that promotes pulmonary hypertension was observed to attenuate the pulmonary vasoconstriction response to acute hypoxia (HPV) both in vivo and in isolated pulmonary arteries. Since catalase restored the HPV
Daniel L Turman et al.
Proceedings of the National Academy of Sciences of the United States of America, 112(18), 5697-5701 (2015-04-23)
The Fluc family is a set of small membrane proteins forming F(-)-specific electrodiffusive ion channels that rescue microorganisms from F(-) toxicity during exposure to weakly acidic environments. The functional channel is built as a dual-topology homodimer with twofold symmetry parallel
Humayun Sharif et al.
Nature, 570(7761), 338-343 (2019-06-14)
The NLRP3 inflammasome can be activated by stimuli that include nigericin, uric acid crystals, amyloid-β fibrils and extracellular ATP. The mitotic kinase NEK7 licenses the assembly and activation of the NLRP3 inflammasome in interphase. Here we report a cryo-electron microscopy
Michael R Wasserman et al.
Cell, 178(3), 600-611 (2019-07-28)
The eukaryotic replicative helicase CMG is a closed ring around double-stranded (ds)DNA at origins yet must transition to single-stranded (ss)DNA for helicase action. CMG must also handle repair intermediates, such as reversed forks that lack ssDNA. Here, using correlative single-molecule
Kimberley S Samkoe et al.
Cancer research, 74(24), 7465-7474 (2014-10-26)
As receptor-targeted therapeutics become increasingly used in clinical oncology, the ability to quantify protein expression and pharmacokinetics in vivo is imperative to ensure successful individualized treatment plans. Current standards for receptor analysis are performed on extracted tissues. These measurements are
Ah-Young Jee et al.
Proceedings of the National Academy of Sciences of the United States of America, 115(1), 14-18 (2017-12-20)
There is mounting evidence that enzyme diffusivity is enhanced when the enzyme is catalytically active. Here, using superresolution microscopy [stimulated emission-depletion fluorescence correlation spectroscopy (STED-FCS)], we show that active enzymes migrate spontaneously in the direction of lower substrate concentration ("antichemotaxis")
Lauren J Jablonowski et al.
Journal of biomedical materials research. Part A, 106(7), 1903-1915 (2018-03-10)
This study represents the first attempt to combine surface TRAIL expression and doxorubicin co-encapsulation in a single drug delivery agent in the form of ultrasound-responsive microbubbles that shatter into fragments, or nanoshards, in an ultrasound beam. We compare customized microbubbles
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