Results 61 to 70 of about 25,530 (255)

Munc18-1 catalyzes neuronal SNARE assembly by templating SNARE association

eLife, 2018
Sec1/Munc18-family (SM) proteins are required for SNARE-mediated membrane fusion, but their mechanism(s) of action remain controversial. Using single-molecule force spectroscopy, we found that the SM protein Munc18-1 catalyzes step-wise zippering of ...
Junyi Jiao, Mengze He, Sarah A Port, Richard W Baker, Yonggang Xu, Hong Qu, Yujian Xiong, Yukun Wang, Huaizhou Jin, Travis J Eisemann, Frederick M Hughson, Yongli Zhang   +11 more
doaj   +1 more source

Role of SNAREs in Unconventional Secretion—Focus on the VAMP7-Dependent Secretion

Frontiers in Cell and Developmental Biology, 2022
Intracellular membrane protein trafficking is crucial for both normal cellular physiology and cell-cell communication. The conventional secretory route follows transport from the Endoplasmic reticulum (ER) to the plasma membrane via the Golgi apparatus ...
Somya Vats, Thierry Galli, Thierry Galli
doaj   +1 more source

SNARE Proteins And SNARE Regulators Mediate Aquaporin2 Exocytosis In Renal Cells

The FASEB Journal, 2008
Aim: The expression and the functional involvement of SNARE proteins and SNARE‐regulating proteins (Munc18b and Munc18c) in catalyzing aquaporin 2 vesicles fusion at the apical membrane is investigated in a mouse cortical collecting duct cell line. Methods: Localization of SNARE and SNARE‐regulating proteins was performed using a ...
PROCINO, Giuseppe, TAMMA, GRAZIA, VALENTI, Giovanna, Barbieri C, De Benedictis L, Pessin J, SVELTO, Maria   +6 more
openaire   +1 more source

Engineered extracellular vesicles enriched with the miR‐214/199a cluster enhance the efficacy of chemotherapy in ovarian cancer

Molecular Oncology, EarlyView.
Loss of the miR‐214/199a cluster is associated with recurrence in ovarian cancer. Engineered small extracellular vesicles (m214‐sEVs) elevate miR‐214‐3p/miR‐199a‐5p in tumor cells, suppress β‐catenin, TLR4, and YKT6 signaling, reprogram tumor‐derived sEV cargo, reduce chemoresistance and migration, and enhance carboplatin efficacy and survival in ...
Weida Wang, Ayesha Alvero, Yi Qin, Mingjin Wang, Alexandra Fox, Yanfeng Li, Michael Millman, Amy Kemper, Gil Mor, Xian Shuang Liu, Michael Chopp, Zheng Gang Zhang, Yi Zhang   +12 more
wiley   +1 more source

Sec1/Munc18 protein Vps33 binds to SNARE domains and the quaternary SNARE complex

Molecular Biology of the Cell, 2012
Soluble N-ethylmaleimide–sensitive factor attachment protein receptor (SNARE) proteins catalyze membrane fusion events in the secretory and endolysosomal systems, and all SNARE-mediated fusion processes require cofactors of the Sec1/Munc18 (SM) family. Vps33 is an SM protein and subunit of the Vps-C complexes HOPS (homotypic fusion and protein sorting)
Lobingier, Braden T., Merz, Alexey J.
openaire   +2 more sources

Keratin 19 as a prognostic marker and contributing factor of metastasis and chemoresistance in high‐grade serous ovarian cancer

Molecular Oncology, EarlyView.
Keratin 19 (KRT19) is overexpressed in high‐grade serous ovarian cancer with high levels of Kallikrein‐related peptidases (KLK) 4–7 and is associated with poor survival. In vivo analyses demonstrate that elevated KRT19 increases peritoneal tumour burden.
Sophia Bielesch, Isabel Vogel, Sina Nokodian, Johanna Moeller, Antonia Blechschmidt, Vicky Hecht, Vanessa Kuentzel, Katharina Thiedig, Melissa Schwab, Oliver Schilling, Holger Bronger, Marion Kiechle, Viktor Magdolen, Tobias Dreyer   +13 more
wiley   +1 more source

Cell‐cycle‐specific lesion evolution rather than inhibition of double‐strand‐break repair underpins cisplatin radiosensitization

Molecular Oncology, EarlyView.
We analyze cisplatin–DNA adducts (CDAs) and double‐strand breaks (DSBs) in a cell‐cycle‐dependent manner. We find that CDAs form similarly across all cell cycle phases. DSBs arise only in S‐phase. CDAs might not directly impair DSB repair, but S‐phase DSB lesions evolve in the presence of CDAs and disrupt repair in G2, also causing radiosensitization ...
Ye Qiu, Xixi Lin, Emil Mladenov, Veronika Mladenova, Jürgen Thomale, Ali Sak, Yao Wang, Yunxuan Deng, Eleni Gkika, Martin Stuschke, George Iliakis   +10 more
wiley   +1 more source

SM proteins Sly1 and Vps33 co-assemble with Sec17 and SNARE complexes to oppose SNARE disassembly by Sec18

eLife, 2014
Secretory and endolysosomal fusion events are driven by SNAREs and cofactors, including Sec17/α-SNAP, Sec18/NSF, and Sec1/Munc18 (SM) proteins. SMs are essential for fusion in vivo, but the basis of this requirement is enigmatic.
Braden T Lobingier, Daniel P Nickerson, Sheng-Ying Lo, Alexey J Merz   +3 more
doaj   +1 more source

SNARE protein SEC22B regulates early embryonic development [PDF]

Scientific Reports, 2019
AbstractThe highly conserved SNARE protein SEC22B mediates diverse and critical functions, including phagocytosis, cell growth, autophagy, and protein secretion. However, these characterizations have thus far been limited to in vitro work. Here, we expand our understanding of the role Sec22b plays in vivo.
Shin-Rong J. Wu, Rami Khoriaty, Stephanie H. Kim, K. Sue O’Shea, Guojing Zhu, Mark Hoenerhoff, Cynthia Zajac, Katherine Oravecz-Wilson, Tomomi Toubai, Yaping Sun, David Ginsburg, Pavan Reddy   +11 more
openaire   +2 more sources

Hijacking emergency granulopoiesis: Neutrophil ontogeny and reprogramming in cancer

Molecular Oncology, EarlyView.
Neutrophils are highly plastic innate immune cells; their functions in cancer extend beyond the tumour microenvironment. This Review summarises current understanding of neutrophil maturation and heterogeneity and highlights tumour‐induced granulopoiesis as a systemic programme that expands immature, immunosuppressive neutrophils via tumour‐derived ...
Gabriela Marinescu, Yi Feng
wiley   +1 more source