Results 101 to 110 of about 1,721,781 (403)

Time to First-Line ART Failure and Time to Second-Line ART Switch in the IeDEA Pediatric Cohort [PDF]

, 2018
BACKGROUND: Globally, 49% of the estimated 1.8 million children living with HIV are accessing antiretroviral therapy (ART). There are limited data concerning long-term durability of first-line ART regimens and time to transition to second-line ...
Ayaya, Samuel, Davies, Mary-Ann, Edmonds, Andrew, Leroy, Valériane, Li, Shanshan, Marete, Irene, Mofenson, Lynne M., Musick, Beverly S., Newman, Jamie E., Nguyen, Lam Van, Obama, Marie-Thérèse, Sawry, Shobna, Sohn, Annette H., Tanoh Eboua, François, Wools-Kaloustian, Kara, Yiannoutsos, Constantin T., Yotebieng, Marcel   +16 more
core   +2 more sources

Telomerase regulates MYC-driven oncogenesis independent of its reverse transcriptase activity.

Journal of Clinical Investigation, 2015
Constitutively active MYC and reactivated telomerase often coexist in cancers. While reactivation of telomerase is thought to be essential for replicative immortality, MYC, in conjunction with cofactors, confers several growth advantages to cancer cells.
Cheryl M. Koh, Ekta Khattar, S. Leow, Chia-yi Liu, J. Muller, W. Ang, Yinghui Li, G. Franzoso, Shang Li, E. Guccione, V. Tergaonkar   +10 more
semanticscholar   +1 more source

Murine leukemia virus reverse transcriptase: Structural comparison with HIV-1 reverse transcriptase [PDF]

Virus Research, 2008
Recent X-ray crystal structure determinations of Moloney murine leukemia virus reverse transcriptase (MoMLV RT) have allowed for more accurate structure/function comparisons to HIV-1 RT than were formerly possible. Previous biochemical studies of MoMLV RT in conjunction with knowledge of sequence homologies to HIV-1 RT and overall fold similarities to ...
Monica J. Roth, Marie L. Coté
openaire   +3 more sources

Retrotransposon Expression Is Upregulated in Adulthood and Suppressed during Regeneration of the Limb in the Axolotl (Ambystoma mexicanum)

Advanced Biology, EarlyView.
The axolotl's remarkable regenerative abilities decline with age, the causes may include the numerous repetitive elements within its genome. This study uncovers how Ty3 retrotransposons and coexpression networks involving muscle and immune pathways respond to aging and regeneration, suggesting that transposons respond to physiological shifts and may ...
Samuel Ruiz‐Pérez, Nicolás Alcaraz, Karla Torres‐Arciga, José Antonio Ocampo‐Cervantes, Alejandra Cervera, Clementina Castro‐Hernández, Cynthia Gabriela Sámano‐Salazar, Ernesto Soto‐Reyes, Rodrigo González‐Barrios   +8 more
wiley   +1 more source

A non-natural nucleotide uses a specific pocket to selectively inhibit telomerase activity.

PLoS Biology, 2019
Telomerase, a unique reverse transcriptase that specifically extends the ends of linear chromosomes, is up-regulated in the vast majority of cancer cells.
Wilnelly Hernandez-Sanchez, Wei Huang, Brian Plucinsky, Nelson Garcia-Vazquez, Nathaniel J Robinson, William P Schiemann, Anthony J Berdis, Emmanuel Skordalakes, Derek J Taylor   +8 more
doaj   +1 more source

One-Step Fluorescent Probe Product-Enhanced Reverse Transcriptase Assay

BioTechniques, 1998
Recently developed PCR-based reverse transcriptase (RT) assays are useful in the detection of retroviruses since they are approximately a millionfold more sensitive than conventional RT assays.
Beth A. Arnold, Robert W. Hepler, Paul M. Keller   +2 more
doaj   +1 more source

LIN28B Promotes Cancer Cell Dissemination and Angiogenesis

Advanced Biology, EarlyView.
Children diagnosed with high‐risk neuroblastoma have a 5‐year event‐free survival rate of less than 50% and poor outcomes after recurrence. Deregulation of the LIN28B oncogene can be addressed in these patients. Upregulation of LIN28B is shown to support the metastatic cascade.
Diana Corallo, Sara Menegazzo, Marcella Pantile, Silvia Bresolin, Carlo Zanon, Alessandro Davini, Massimiliano Mazzone, Alessandra Biffi, Sanja Aveic   +8 more
wiley   +1 more source

The Need for Development of New HIV-1 Reverse Transcriptase and Integrase Inhibitors in the Aftermath of Antiviral Drug Resistance

Scientifica, 2012
The use of highly active antiretroviral therapy (HAART) involves combinations of drugs to achieve maximal virological response and reduce the potential for the emergence of antiviral resistance.
Mark A. Wainberg
doaj   +1 more source

The “Connection” Between HIV Drug Resistance and RNase H

Viruses, 2010
Currently, nucleoside reverse transcriptase inhibitors (NRTIs) and nonnucleoside reverse transcriptase inhibitors (NNRTIs) are two classes of antiretroviral agents that are approved for treatment of HIV-1 infection. Since both NRTIs and NNRTIs target the
Krista A. Delviks-Frankenberry, Vinay K. Pathak, Galina N. Nikolenko   +2 more
doaj   +1 more source

Adaptive HIV-1 evolutionary trajectories are constrained by protein stability [PDF]

, 2017
Despite the use of combination antiretroviral drugs for the treatment of HIV-1 infection, the emergence of drug resistance remains a problem. Resistance may be conferred either by a single mutation or a concerted set of mutations.
Kandathil, Shaun M., Lovell, Simon C., Olabode, Abayomi S., Robertson, David L.   +3 more
core   +1 more source