Results 91 to 100 of about 109,234 (306)

Fluorescent Amino Acid Initiated De Novo Cyclic Peptides for the Label-Free Assessment of Cell Permeability

open access: yes, 2021
The major obstacle in applying peptides to intracellular targets is their low inherent cell permeability. Standard approaches to attach a fluorophore (e.g.
Teresa, Bertran Domingo   +5 more
core   +1 more source

Oncogenic DMTF1β promotes cancer cell motility by regulating autophagy through ULK1 stabilization

open access: yesMolecular Oncology, EarlyView.
In the current study, we demonstrate that the oncogene DMTF1β regulates ULK1 stability by reducing its proteasomal degradation in cancer cells. This stabilization enables ULK1 to induce autophagy, which in turn facilitates cancer cell migration. Consequently, reduced DMTF1β levels lead to decreased autophagy and impaired cancer cell migration.
Jun Xu   +13 more
wiley   +1 more source

Cyclic Peptides as Inhibitors of Amyloid Fibrillation

open access: yesChemistry – A European Journal, 2014
AbstractMany neurodegenerative diseases, like Parkinson’s, Alzheimer’s, or Huntington’s disease, occur as a result of amyloid protein fibril formation and cell death induced by this process. Cyclic peptides (CPs) and their derivatives form a new class of powerful inhibitors that prevent amyloid fibrillation and decrease the cytotoxicity of aggregates ...
Luo, J., Abrahams, J.P.
openaire   +4 more sources

Epigenetic heterogeneity and plasticity in therapy‐induced tumor states through single‐cell multi‐omics

open access: yesMolecular Oncology, EarlyView.
Single‐cell multi‐omics reveals epigenetic heterogeneity across therapy‐adaptive tumor states, including quiescent/dormant, drug‐tolerant persister, and EMT‐like phenotypes. By linking regulatory features with state‐associated biomarkers, these approaches inform biomarker‐guided therapeutic strategies for evolving tumors.
Hee Jung Kim   +3 more
wiley   +1 more source

PAK1 activation drives divergent resistance mechanisms to aromatase inhibition and tamoxifen in a luminal: A breast cancer model

open access: yesMolecular Oncology, EarlyView.
Breast cancer remains a major cause of cancer death in women, frequently developing endocrine therapy resistance. This study demonstrates that upregulated p21‐activated kinase 1 (PAK1) activity drives resistance to tamoxifen and long‐term estrogen deprivation in ER+ breast cancer models.
Luisa Schwarzmüller   +10 more
wiley   +1 more source

Cyclic Peptides as Novel Therapeutic Microbicides: Engineering of Human Defensin Mimetics

open access: yesMolecules, 2017
Cyclic peptides are receiving significant attention thanks to their antimicrobial activity and high serum stability, which is useful to develop and design novel antimicrobial agents.
Annarita Falanga   +6 more
doaj   +1 more source

ZW4864‐mediated inhibition of the β‐catenin/BCL9/BCL9L complex reveals therapeutic potential in bladder cancer

open access: yesMolecular Oncology, EarlyView.
BCL9 and BCL9L drive bladder cancer progression by enhancing β‐catenin signaling, promoting proliferation, migration, invasion, and organoid growth. Genetic depletion of BCL9(L) suppresses malignant phenotypes, while pharmacological disruption of the β‐catenin/BCL9(L) complex with ZW4864 inhibits canonical Wnt signaling and tumor‐associated cellular ...
Roland Kotolloshi   +11 more
wiley   +1 more source

Promiscuous stimulation of HSP70 ATPase activity by parasite‐derived J‐domains

open access: yesFEBS Open Bio, EarlyView.
The malaria parasite Plasmodium falciparum exports three highly homologous yet functionally divergent J‐domain proteins into human erythrocytes. Here, we show that J‐domains isolated from all three proteins effectively stimulate the ATPase activity of both endogenous host and exported parasite HSP70 chaperones.
Julian Barth   +6 more
wiley   +1 more source

Characterisation of the anti-inflammatory and anti-proliferative effects of natriuretic peptides in rodents.

open access: yes, 2007
Natriuretic peptides are a family of vasoactive hormones that play important roles in cardiovascular homeostasis. These peptides exert biological effects primarily via activation of guanylate cyclase (GC)-coupled natriuretic peptide receptors (NPR) that ...
Panayiotou, C.M.
core  

Novel pH-Sensitive Cyclic Peptides

open access: yes, 2016
A series of cyclic peptides containing a number of tryptophan (W) and glutamic acid (E) residues were synthesized and evaluated as pH-sensitive agents for targeting of acidic tissue and pH-dependent cytoplasmic delivery of molecules.
Adochite, Ramona-Cosmina   +12 more
core   +1 more source

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