Results 131 to 140 of about 98,834 (305)

Paths reunited: initiation of the classical and lectin pathways of complement activation [PDF]

, 2010
Understanding the structural organisation and mode of action of the initiating complex of the classical pathway of complement activation (C1) has been a central goal in complement biology since its isolation almost 50 years ago.
Schmid, Ralf, Schwaeble, Wilhelm J., Wilhelm J. Schwaeble, Anthony H. Keeble, Russell Wallis, Mitchell, Daniel A., Keeble, Anthony H., Wallis, Russell, Ralf Schmid, Daniel A. Mitchell   +9 more
core   +1 more source

Endoplasmic Reticulum Geometry Dictates Neuronal Bursting via Calcium Store Refill Rates and Exposes Selective Neuronal Vulnerability

Advanced Science, EarlyView.
The ER's continuous tubular network is maintained by ER‐shaping proteins whose mutation or dysregulation contributes to neurodegenerative diseases. Here, we show that ER morphology sets the speed of Ca2+ store replenishment between firing events. Disrupting ER continuity slows intra‐ER Ca2+ redistribution from extracellular refill (SOCE) sites, driving
Valentina Davi, Pierre Parutto, Yuyi Zhang, Tasuku Konno, Cecile Crapart, Raquel Pereira, John P. Franklin, Mosab Ali Awadelkareem, Daniel C Maddison, Michael J. Devine, Edgar R. Gomes, Joseph Chambers, Elena Koslover, Edward Avezov   +13 more
wiley   +1 more source

Polar Lattice‐Distorted Motifs Enable Synergy of Local Polarization/Dipole Fields for Concurrent Glyphosate Wastewater Remediation and CO Evolution

Advanced Science, EarlyView.
Photocatalytic treatment of glyphosate herbicide in agricultural wastewater is achieved through the cooperative effect of the local polarization field and dipole field mediated by lattice‐distorted carbon nitride. Glyphosate is completely degraded via selective C─P bond cleavage with a CO evolution rate of 1166 µmol g−1 h−1.
Daoping Chen, Huan Liu, Tengyu Liu, Jie Li, Qizhi Luo, Yan Zhang, Shengkun Li, Hu Li   +7 more
wiley   +1 more source

Dual Cytoplasmic and Chloroplastic Mechanisms Fine‐Tune Chloroplast Division through ARC3 Protein Stability

Advanced Science, EarlyView.
ARC3 levels are controlled by cytosolic and chloroplast proteolytic systems. PUB52 mediates ARC3 precursor ubiquitination and degradation in the cytosol, while CLPC1 promotes ARC3 degradation in chloroplasts, where ARC2 protects ARC3 from excessive breakdown. Disrupting these components causes chloroplast division defects, placing them upstream of ARC3.
Yang Yuan, Denghao Xiang, Ruiying Li, Zhichuang Yue, Zhipeng Wang, Honghong Hu   +5 more
wiley   +1 more source

Case of Splenic Marginal Zone Lymphoma Presenting as Acquired Angioedema

Annals of Internal Medicine: Clinical Cases
Acquired angioedema (AAE-C1INH) is a rare, potentially life-threatening disorder resulting from acquired C1 esterase inhibitor deficiency, often secondary to lymphoproliferative diseases such as splenic marginal zone lymphoma (SMZL).
Lohitha Dhulipalla, Nawaraj Adhikari, Sakura Thapa, Ramyasree Chilukuri, Marcel Odaimi   +4 more
doaj   +1 more source

FUCA2 Sustains AKT Signaling and Suppresses Senescence by Antagonizing FUT3‐Mediated ErbB3 Fucosylation in Lung Adenocarcinoma

Advanced Science, EarlyView.
ABSTRACT While targeted therapies have improved outcomes in lung adenocarcinoma (LUAD), many patients still lack targetable mutations. Here, we identified alpha‐L‐fucosidase 2 (FUCA2) as a crucial driver of LUAD by preventing cellular senescence. Mechanistically, through the restriction of fucosyltransferase 3 (FUT3)‐mediated α‐1,3‐fucosylation of ...
Lu Chen, Jintao Guo, Fei Li, Mingjie Gao, Runyang Li, Zhaozhang Huang, Yaolin Zheng, Chunyi Gao, Jihuan Hou, Qiang Yu, Bowen Zheng, Xuemei Chen, Wenqing Zhang, Xiaoting Hong, Yali Zheng, Daxuan Wang, Qiyuan Li, Tianhui Hu, Yan‐yan Zhan   +18 more
wiley   +1 more source

C-Prime Esterase Inhibitor Deficiency Presenting as Intestinal Pseudo-Obstruction and Angioedema

Canadian Journal of Gastroenterology, 1988
A 17-year-old man presented with episodic abdominal pain, distension and vomiting. Esophageal manometry showed a reduced lower esophageal pressure with massive reflux, gastric emptying of liquids was normal and migrating myoelectric complexes were ...
C.W.E. Lam, T. Shnitka, T.H. Aaron, K. Bowes, A.B.R. Thomson   +4 more
doaj   +1 more source

Acquired C1-inhibitor deficiency asociated with antiidiotypic antibody to monoclonal immunoglobulins

, 1985
The syndrome of acquired angioedema and C1-inhibitor deficiency is associated with B-cell lymphoproliferative disease. It is characterized by accelerated consumption of C1q and C1 inhibitor in vivo and by low levels of serum C2 and C4. Four patients with
I. Quinti, M. Cicardi, Albert Sheffer, GEHA RS, Raif S. Geha, K. Frank Austen, Marco Cicardi, AUSTEN KF, CICARDI M, QUINTI, Isabella, K. F. Austen, F. S. Rosen, ROSEN FS, Fred S. Rosen, Isabella Quinti, R. S. Geha, A. Sheffer, SHEFFER A   +17 more
core   +1 more source

Tumor‐Intrinsic ARHGEF3 Enhances Antitumor Immunity by Promoting T‐Cell Infiltration and Limiting Myeloid Cell‐Mediated Immunosuppression

Advanced Science, EarlyView.
ARHGEF3 is broadly downregulated across human cancers and correlates with patient prognosis. Tumor‐intrinsic ARHGEF3 activates the RHOA–ROCK–PTEN cascade to inhibit AKT signaling, thereby promoting chemokine‐driven T‐cell infiltration and relieving lipid‐mediated myeloid immunosuppression.
Yue Li, Lan Wang, Zihao Zhang, Chunmei Qian, Ning Li, Wei Huang, Qian Ba, Xiaojian Liu, Mayu Sun   +8 more
wiley   +1 more source

C1 Inhibitor Autoantibodies

, 2014
Autoantibodies to C1 inhibitor (C1-INH) bind to epitopes on the reactive center of the C1-INH molecule. As a consequence of this binding, C1-INH is converted into an inactive substrate that can be cleaved by proteases.
Suffritti, C, Perricone, R, Roberto Perricone, Cicardi, M, Andrea Zanichelli, Chiara Suffritti, Zanichelli, A, Marco Cicardi, PERRICONE, ROBERTO   +8 more
core   +1 more source