Results 21 to 30 of about 7,547 (200)

Spatial topology of organelle is a new breast cancer cell classifier

iScience, 2023
Summary: Genomics and proteomics have been central to identify tumor cell populations, but more accurate approaches to classify cell subtypes are still lacking.
Ling Wang, Joshua Goldwag, Megan Bouyea, Jonathan Barra, Kailie Matteson, Niva Maharjan, Amina Eladdadi, Mark J. Embrechts, Xavier Intes, Uwe Kruger, Margarida Barroso   +10 more
doaj   +1 more source

Supracellular Actomyosin Mediates Cell-Cell Communication and Shapes Collective Migratory Morphology

iScience, 2020
Summary: During collective cell migration, front cells tend to extend a predominant leading protrusion, which is rarely present in cells at the side or rear positions.
Heng Wang, Xuan Guo, Xianping Wang, Xiaobo Wang, Jiong Chen   +4 more
doaj   +1 more source

Protease OMA1 modulates mitochondrial bioenergetics and ultrastructure through dynamic association with MICOS complex

iScience, 2021
Summary: Remodeling of mitochondrial ultrastructure is a process that is critical for organelle physiology and apoptosis. Although the key players in this process—mitochondrial contact site and cristae junction organizing system (MICOS) and Optic Atrophy
Martonio Ponte Viana, Roman M. Levytskyy, Ruchika Anand, Andreas S. Reichert, Oleh Khalimonchuk   +4 more
doaj   +1 more source

DNA sequence-directed cooperation between nucleoid-associated proteins

iScience, 2021
Summary: Nucleoid-associated proteins (NAPs) are a class of highly abundant DNA-binding proteins in bacteria and archaea. While both the composition and relative abundance of the NAPs change during the bacterial growth cycle, surprisingly little is known
Aleksandre Japaridze, Wayne Yang, Cees Dekker, William Nasser, Georgi Muskhelishvili   +4 more
doaj   +1 more source

Dynamics of nuclear export of pre-ribosomal subunits revealed by high-speed single-molecule microscopy in live cells

iScience, 2023
Summary: We present a study on the nuclear export efficiency and time of pre-ribosomal subunits in live mammalian cells, using high-speed single-molecule tracking and single-molecule fluorescence resonance energy transfer techniques.
Samuel L. Junod, Mark Tingey, Joseph M. Kelich, Alexander Goryaynov, Karl Herbine, Weidong Yang   +5 more
doaj   +1 more source

Dynamics of endogenous PARP1 and PARP2 during DNA damage revealed by live-cell single-molecule imaging

iScience, 2023
Summary: PARP1 contributes to genome architecture and DNA damage repair through its dynamic association with chromatin. PARP1 and PARP2 (PARP1/2) recognize damaged DNA and recruit the DNA repair machinery.
Jyothi Mahadevan, Asmita Jha, Johannes Rudolph, Samuel Bowerman, Domenic Narducci, Anders S. Hansen, Karolin Luger   +6 more
doaj   +1 more source

Super-resolution microscopy reveals nanoscale architecture and regulation of podosome clusters in primary macrophages

iScience, 2022
Summary: Podosomes, an important actin-based adhesive architecture, play critical roles in cell migration and matrix invasiveness. Here, we elucidate the ultrastructural organization and regulation of podosome clusters in primary macrophages.
Fen Hu, Donglan Zhu, Hao Dong, Ping Zhang, Fulin Xing, Wan Li, Rui Yan, Jun Zhou, Ke Xu, Leiting Pan, Jingjun Xu   +10 more
doaj   +1 more source

Hsp70 exhibits a liquid-liquid phase separation ability and chaperones condensed FUS against amyloid aggregation

iScience, 2022
Summary: Hsp70 is a key molecular chaperone in the protein quality control system to safeguard protein homeostasis in cells. Previous studies have shown that Hsp70 chaperones TDP-43, a pathogenic protein associated with amyotrophic lateral sclerosis (ALS)
Yichen Li, Jinge Gu, Chen Wang, Jiaojiao Hu, Shenqing Zhang, Cong Liu, Shengnan Zhang, Yanshan Fang, Dan Li   +8 more
doaj   +1 more source

CHIP-dependent regulation of the actin cytoskeleton is linked to neuronal cell membrane integrity

iScience, 2021
Summary: CHIP is an E3-ubiquitin ligase that contributes to healthy aging and has been characterized as neuroprotective. To elucidate dominant CHIP-dependent changes in protein steady-state levels in a patient-derived human neuronal model, CHIP function ...
Catarina Dias, Erisa Nita, Jakub Faktor, Ailish C. Tynan, Lenka Hernychova, Borivoj Vojtesek, Jesper Nylandsted, Ted R. Hupp, Tilo Kunath, Kathryn L. Ball   +9 more
doaj   +1 more source

Mechanical control of the alternative splicing factor PTBP1 regulates extracellular matrix stiffness induced proliferation and cell spreading

iScience
Summary: Cells sense mechanical cues and convert them into biochemical responses to regulate biological processes such as embryonic development, aging, cellular homeostasis, and disease progression.
Pei-Li Tseng, Weiwei Sun, Ahmed Salem, Mubarak Alaklobie, Sarah C. Macfarlane, Annica K.B. Gad, Mark O. Collins, Kai S. Erdmann   +7 more
doaj   +1 more source