Results 61 to 70 of about 622,888 (291)

Molecular bases of circadian magnesium rhythms across eukaryotes

FEBS Letters, EarlyView.
Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley   +1 more source

Scavenger receptor class B type I is solely responsible for the selective uptake of cholesteryl esters from HDL by the liver and the adrenals in mice

Journal of Lipid Research, 2004
Scavenger receptor class B type I (SR-BI) has been identified as a functional HDL binding protein that can mediate the selective uptake of cholesteryl ester (CE) from HDL.
Ruud Out, Menno Hoekstra, John A.A. Spijkers, Johan K. Kruijt, Miranda van Eck, Ingrid S.T. Bos, Jaap Twisk, Theo J.C. Van Berkel   +7 more
doaj   +1 more source

Research on selective uptake of photosensitizer C3N4@RP by different cancer cells

Materials Research Express, 2022
Photodynamic therapy (PDT), as a clinical treatment, can remove malignant cells upon laser irradiation by selective uptake of photosensitizer (PS). The relative contribution of these antitumor effects depends largely on the dose and uptake of PS. In this
Jiaxiu Liu, Jingying Chen, Xitong Lin, Shuchao Zhang   +3 more
doaj   +1 more source

New trends for metal complexes with anticancer activity [PDF]

, 2008
Medicinal inorganic chemistry can exploit the unique properties of metal ions for the design of new drugs. This has, for instance, led to the clinical application of chemotherapeutic agents for cancer treatment, such as cisplatin. The use of cisplatin is,
Ang, Ang, Barnard, Barnes, Bednarski, Bergamo, Bregman, Calderone, Casini, Debreczeni, Dixon, Dyson, Failes, Feazell, Guo, Habtemariam, Hall, Hambley, Hannon, Harris, Heringova, Hillard, Hotze, James, Jung, Komeda, Liu, Lutterman, MacDiarmid, Mackay, Mackay, McNae, Meggers, Milacic, Noor, Oleksi, Orvig, Ott, Pascu, Peacock, Peter J Sadler, Pieter CA Bruijnincx, Reed, Schatzschneider, Schlawe, Scolaro, Smalley, Sun, Thompson, Timerbaev, Urig, Urig, van Zutphen, Wang, Weidt, Yan, Yang   +56 more
core   +1 more source

Real‐time assay of ribonucleotide reductase activity with a fluorescent RNA aptamer

FEBS Letters, EarlyView.
Ribonucleotide reductases (RNR) synthesize DNA building blocks de novo, making them crucial in DNA replication and drug targeting. FLARE introduces the first single‐tube real‐time coupled RNR assay, which enables isothermal tracking of RNR activity at nanomolar enzyme levels and allows the reconstruction of allosteric regulatory patterns and rapid ...
Jacopo De Capitani, Noemi E. Nwosu, Viktoria Gocke, Müge Kasanmascheff, Hannes Mutschler   +4 more
wiley   +1 more source

Regulation of the selective uptake of high density lipoprotein-associated cholesteryl esters by human fibroblasts and Hep G2 hepatoma cells.

Journal of Lipid Research, 1988
We have previously shown that the liver and steroidogenic tissues of rats in vivo and a wider range of cells in vitro, including human cells, selectively take up high density lipoprotein (HDL) cholesteryl esters without parallel uptake of HDL particles ...
F Rinninger, R C Pittman
doaj   +1 more source

Anticancer drug delivery with transferrin targeted polymeric chitosan vesicles [PDF]

, 2004
The study reports the initial biological evaluation of targeted polymeric glycol chitosan vesicles as carrier systems for doxorubicin (Dox). Transferrin (Tf) was covalently bound to the Dox-loaded palmitoylated glycol chitosan (GCP) vesicles using ...
Couet, William, Dufès, Christine, Muller, Jean-Marc, Olivier, Jean-Christophe, Schätzlein, Andreas G., Uchegbu, I.F.   +5 more
core   +1 more source

The role of histone modifications in transcription regulation upon DNA damage

FEBS Letters, EarlyView.
This review discusses the critical role of histone modifications in regulating gene expression during the DNA damage response (DDR). By modulating chromatin structure and recruiting repair factors, these post‐translational modifications fine‐tune transcriptional programmes to maintain genomic stability.
Angelina Job Kolady, Siyao Wang
wiley   +1 more source

Simultaneous induction of an HDL receptor protein (SR-BI) and the selective uptake of HDL-cholesteryl esters in a physiologically relevant steroidogenic cell model

Journal of Lipid Research, 1998
This study addresses the question of whether the level of expression of SR-BI (an HDL receptor) is linked to the expression of selective lipoprotein-cholesteryl ester delivery in a steroidogenic cell model. Rat ovarian granulosa cells are physiologically
Salman Azhar, Ann Nomoto, Susan Leers-Sucheta, Eve Reaven   +3 more
doaj   +1 more source

Zebrafish kidney phagocytes utilize macropinocytosis and Ca+-dependent endocytic mechanisms. [PDF]

PLoS ONE, 2009
BACKGROUND: The innate immune response constitutes the first line of defense against invading pathogens and consists of a variety of immune defense mechanisms including active endocytosis by macrophages and granulocytes.
Claudia Hohn, Sang-Ryul Lee, Lesya M Pinchuk, Lora Petrie-Hanson   +3 more
doaj   +1 more source