Results 101 to 110 of about 393,592 (390)

Autophagic sequestration of SQSTM1 disrupts the aggresome formation of ubiquitinated proteins during proteasome inhibition

Cell Death and Disease, 2022
Aggresome formation is a protective cellular response to counteract proteasome dysfunction by sequestering misfolded proteins and reducing proteotoxic stress.
Chenliang Zhang, Chen Huang, Hongwei Xia, Huanji Xu, Qiulin Tang, Feng Bi   +5 more
doaj   +1 more source

Peptide size dependent active transport in the proteasome

, 2004
We investigate the transport of proteins inside the proteasome and propose an active transport mechanism based on a spatially asymmetric interaction potential of peptide chains.
Poeschel, Thorsten, Zaikin, Alexei
core   +1 more source

Mifepristone increases mRNA translation rate, triggers the unfolded protein response, increases autophagic flux, and kills ovarian cancer cells in combination with proteasome or lysosome inhibitors [PDF]

, 2016
The synthetic steroid mifepristone blocks the growth of ovarian cancer cells, yet the mechanism driving such effect is not entirely understood. Unbiased genomic and proteomic screenings using ovarian cancer cell lines of different genetic backgrounds and
Callegari, Eduardo A., Chien, Jeremy, Drappeau, Donis D., Eyster, Kathleen M., Gamarra Luques, Carlos Diego, Goyeneche, Alicia A., Hapon, María Belén, Knapp, Jennifer R., Pan, Bo, Srinivasan, Rekha, Telleria, Carlos Marcelo, Terpstra, Erin J., Wang, Xuejun, Zhang, Lei   +13 more
core   +1 more source

Proteasomes in human spermatozoa [PDF]

International Journal of Andrology, 2000
In the present study we describe the localization of proteasomes in human spermatozoa by means of immunolabelling with different monoclonal and polyclonal antibodies detected by confocal microscopy. Western blotting confirmed the specificity of the antibodies and has shown that proteasomes are present in spermatozoa and in seminal fluid. In spermatozoa
Wojcik, C., Benchaib, Mehdi, Lornage, Jacqueline, Czyba, J.C., Guérin, J.F.   +4 more
openaire   +4 more sources

FEM1B enhances TRAIL‐induced apoptosis in T lymphocytes and monocytes

FEBS Open Bio, EarlyView.
FEM1B facilitates TRAIL‐induced apoptosis through distinct mechanisms in T lymphocytes and monocytes. In T lymphocytes, FEM1B engages with TRAF2, leading to a reduction in TRAF2 expression, which subsequently lessens TRAF2's inhibitory influence on caspase‐8.
Chenbo Yang, Wenhui Yu, Cui Dang, Jingjing Zhang, Jiahan Lu, Jing Xue   +5 more
wiley   +1 more source

Proteasome Activation as a New Therapeutic Approach To Target Proteotoxic Disorders.

Journal of Medicinal Chemistry, 2019
Proteasomes are multienzyme complexes that maintain protein homeostasis (proteostasis) and important cellular functions through the degradation of misfolded, redundant, and damaged proteins.
Evert Njomen, J. Tepe
semanticscholar   +1 more source

The E3 ubiquitin ligase, RNF219, suppresses CNOT6L expression to exhibit antiproliferative activity

FEBS Open Bio, EarlyView.
We identified RNF219 as a CCR4‐NOT complex‐interacting E3 ubiquitin ligase that targets the CCR4‐NOT subunit CNOT6L for ubiquitination. RNF219 directly binds to the DUF3819 domain of CNOT1 through its putative α‐helix spanning amino acids 521–542. Our findings also suggest that antiproliferative activity of RNF219 is at least partially mediated by ...
Shou Soeda, Melissa Montrose, Akinori Takahashi, Risa Ishida, Sandrine Burriel, Nao Ohmine, Tohru Natsume, Shungo Adachi, Minsoo Kim, Tadashi Yamamoto   +9 more
wiley   +1 more source

Activation of autophagy reverses progressive and deleterious protein aggregation in PRPF31 patient‐induced pluripotent stem cell‐derived retinal pigment epithelium cells

Clinical and Translational Medicine, 2022
Introduction Mutations in pre‐mRNA processing factor 31 (PRPF31), a core protein of the spliceosomal tri‐snRNP complex, cause autosomal‐dominant retinitis pigmentosa (adRP).
Maria Georgiou, Chunbo Yang, Robert Atkinson, Kuan‐Ting Pan, Adriana Buskin, Marina Moya Molina, Joseph Collin, Jumana Al‐Aama, Franziska Goertler, Sebastian E. J. Ludwig, Tracey Davey, Reinhard Lührmann, Sushma Nagaraja‐Grellscheid, Colin A. Johnson, Robin Ali, Lyle Armstrong, Viktor Korolchuk, Henning Urlaub, Sina Mozaffari‐Jovin, Majlinda Lako   +19 more
doaj   +1 more source

Prion degradation pathways: Potential for therapeutic intervention [PDF]

, 2015
Prion diseases are fatal neurodegenerative disorders. Pathology is closely linked to the misfolding of native cellular PrP(C) into the disease-associated form PrP(Sc) that accumulates in the brain as disease progresses. Although treatments have yet to be
Goold, R, McKinnon, C, Tabrizi, SJ
core   +1 more source

A Novel CHMP2B Splicing Variant in Atypical Presentation of Familial Frontotemporal Lobar Degeneration

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT C‐truncating variants in the charged multivesicular body protein 2B (CHMP2B) gene are a rare cause of frontotemporal lobar degeneration (FTLD), previously identified only in Denmark, Belgium, and China. We report a novel CHMP2B splice‐site variant (c.35‐1G>A) associated with familial FTLD in Spain. The cases were two monozygotic male twins who
Sara Rubio‐Guerra, Sara Bernal, David Almenta, Josefina Pérez‐Blanco, Valle Camacho, Isabel Sala, Mª Belén Sánchez‐Saudinós, Jesús García Castro, Judit Selma‐González, Miguel Ángel Santos‐Santos, Álvaro Carbayo, Janina Turon‐Sans, Ricard Rojas‐Garcia, Daniel Alcolea, Juan Fortea, Alberto Lleó, Oriol Dols‐Icardo, Ignacio Illán‐Gala   +17 more
wiley   +1 more source