Results 11 to 20 of about 1,302,502 (304)

Selective gene amplification [PDF]

open access: yesProtein Engineering Design and Selection, 2007
We describe a system for directed evolution based on in vitro compartmentalisation in which amplification of a gene is coupled to the formation of product by the enzyme it encodes. This approach mimics the process of natural selection; 'fitter' genes--encoding more efficient enzymes--have more 'offspring'.
Bernard T, Kelly, Andrew D, Griffiths
openaire   +2 more sources

The prognostic impact of EGFR, ErbB2 and MET gene amplification in human gastric carcinomas as measured by quantitative Real-Time PCR [PDF]

open access: yes, 2015
Purpose: Identification of critical genes which play pivotal roles in controlling tumor growth and survival will establish the basis for developing therapeutic targets. In this study, we focused on frequencies of EGFR, ErbB2 and MET gene amplification in
Farazmandfar, T.   +4 more
core   +1 more source

Amplification of the androgen receptor may not explain the development of androgen-independent prostate cancer [PDF]

open access: yes, 2001
Objective To examine the role of androgen receptor (AR) gene amplification and aneusomy of the X chromosome in the development of antiandrogen-resistant prostate cancer.
Bartlett, J.M.S.   +5 more
core   +1 more source

Gene amplification in carcinogenesis

open access: yesGenetics and Molecular Biology, 2006
Gene amplification increases the number of genes in a genome and can give rise to karyotype abnormalities called double minutes (DM) and homogeneously staining regions (HSR), both of which have been widely observed in human tumors but are also known to ...
Lucimari Bizari   +2 more
doaj   +1 more source

Targeting FGFR in non-small cell lung cancer: implications from the landscape of clinically actionable aberrations of FGFR kinases

open access: yesCancer Biology & Medicine, 2021
Objective: Dysfunction in fibroblast growth factor receptor (FGFR) signaling has been reported in diverse cancer types, including non-small cell lung cancer (NSCLC).
Zhen Zhou   +7 more
doaj   +1 more source

Topoisomerase expression and amplification in solid tumours: Analysis of 24,262 patients. [PDF]

open access: yes, 2017
BackgroundTopoisomerase I (TOPO1) and topoisomerase IIα (TOP2A) are specific targets of multiple chemotherapy drugs. Increased expression of TOPO1 protein and amplification of the TOP2A gene have been associated with treatment response in colorectal and ...
Arguello, David   +4 more
core   +1 more source

A rare epidermal growth factor receptor (EGFR) gene mutation in small cell lung carcinoma patients

open access: yesBiomedical Papers, 2022
Aim. Activating mutations in the epidermal growth factor receptor (EGFR) are predominantly detected in pulmonary adenocarcinoma and have been reported in small cell lung cancer (SCLC) for decades. This retrospective single-center study aimed to determine
Cheng-Cheng Hwang   +6 more
doaj   +1 more source

Phosphorylation of pRb: mechanism for RB pathway inactivation in MYCN-amplified retinoblastoma. [PDF]

open access: yes, 2017
A small, but unique subgroup of retinoblastoma has been identified with no detectable mutation in the retinoblastoma gene (RB1) and with high levels of MYCN gene amplification.
Bhatti, Tricia R.   +6 more
core   +2 more sources

A Temporary Pause in the Replication Licensing Restriction Leads to Rereplication during Early Human Cell Differentiation

open access: yesCells, 2022
Gene amplifications in amphibians and flies are known to occur during development and have been well characterized, unlike in mammalian cells, where they are predominantly investigated as an attribute of tumors.
Marie Minet   +8 more
doaj   +1 more source

The role of pfmdr1 in Plasmodium falciparum tolerance to artemether-lumefantrine in Africa [PDF]

open access: yes, 2007
Objective Artemether-lumefantrine (AL), presently the most favoured combination therapy against uncomplicated Plasmodium falciparum malaria in Africa, has recently shown to select for the pfmdr1 86N allele.
Barnes   +21 more
core   +2 more sources

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