Results 161 to 170 of about 1,479,995 (314)

Investigation of the intrinsic mechanism of drug resistance in multiple myeloma [PDF]

open access: yes, 2011
The focus of this thesis was to evaluate the mechanisms whereby myeloma cells develop intrinsic resistance with a focus on resistance in the context of bortezomib treatment.
Ooi, Melissa
core  

USP29‐regulated noncanonical stabilization of the hypoxia‐inducible factor‐α in aggressive prostate cancer

open access: yesMolecular Oncology, EarlyView.
We identify USP29 as the only DUB mirroring CA9 expression, a marker of hypoxia and HIF pathway activation associated with PCA aggressiveness. USP29 stabilizes HIF‐1α and HIF‐2α via a noncanonical mechanism that is independent of PHD/pVHL activity yet relies on proteasomal regulation, establishing USP29 as a previously unrecognized regulator of hypoxic
Amelie S Schober   +16 more
wiley   +1 more source

Gene amplification and insecticide resistance

open access: yes, 2011
Pesticide resistance in arthropods has been shown to evolve by two main mechanisms, the enhanced production of metabolic enzymes, which bind to and/or detoxify the pesticide, and mutation of the target protein, which makes it less sensitive to the ...
Field, L. M.   +3 more
core   +1 more source

Finding novel vulnerabilities of hypomorphic BRCA1 alleles

open access: yesMolecular Oncology, EarlyView.
Synthetic lethality screens performed to identify novel vulnerabilities often model complete gene loss, thereby overlooking patient‐derived hypomorphic mutations. In this study, we have performed genome‐wide CRISPR screens on BRCA1 hypomorphic mutations, showing BRCA1I26A behaves like wild‐type, while BRCA1R1699Q mimics deficiency. Furthermore, we have
Anne Schreuder   +10 more
wiley   +1 more source

Target site modifications in the ribosome as antibiotic resistance mechanisms.

open access: yes, 2008
Target site modifications in the ribosome as antibiotic resistance ...
Seok-Ming. Toh (7988285)
core  

Non-target-site resistance to ALS inhibitors in waterhemp [PDF]

open access: yes, 2014
The acetolactate synthase (ALS) enzyme, or acetohydroxyacid synthase (AHAS) enzyme, is an essential enzyme in branched-chain amino acid biosynthesis, and is the target site of five families of herbicides referred to as ALS inhibitors.
Guo, Jiaqi
core  

Detection of target site resistance to pyrethroids and organophosphates in the horn fly using multiplex polymerase chain reaction

open access: yes, 2010
The horn fly, Haematobia irritans L., is an obligate blood-feeding fly and the primary insect pest parasitizing cattle in the United States. Pesticide resistance has become a substantial problem for cattle producers, and although several mechanisms of ...
Bendele, K. G.   +2 more
core   +1 more source

MITF maintains genome stability in nonmelanocyte lineages

open access: yesMolecular Oncology, EarlyView.
MITF is essential for melanocyte survival and acts as an oncogene in 10%–20% of melanomas. We show that MITF depletion causes genome instability in nonmelanocytic cells, leading to LATS2‐mediated P53 activation, cell cycle arrest, and apoptosis. This study highlights the role of MITF as a genome maintenance factor beyond the melanocyte lineage. Created
Drifa H. Gudmundsdottir   +13 more
wiley   +1 more source

A novel quinazolinone insulin receptor inhibitor and its synergy with an EGFR inhibitor in glucose‐driven glioblastoma

open access: yesMolecular Oncology, EarlyView.
The novel styrylquinazolinone‐based molecule W1B effectively suppresses glioblastoma by inhibiting IGF1R and EGFR. In high‐glucose microenvironments driving tumor resistance, W1B acts synergistically with the EGFR inhibitor dacomitinib. This combination safely blocks compensatory survival signaling in zebrafish xenograft models. Showcasing promising in
Patryk Rurka   +9 more
wiley   +1 more source

Determination of the Mechanisms of MCPA Resistance in Amaranthus powellii

open access: yesPlant Direct
Resistance to 2‐methyl‐4‐chloro‐phenoxyacetic acid (MCPA) was recently confirmed in a population of green pigweed (Amaranthus powellii) from Dresden, Ontario, Canada, with a resistance factor of 4.4. Resistance to synthetic auxin herbicides in Amaranthus
Isabelle Aicklen   +7 more
doaj   +1 more source

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