Results 21 to 30 of about 80,643 (282)

What doesn't kill you makes you stranger: Dipeptidyl peptidase-4 (CD26) proteolysis differentially modulates the activity of many peptide hormones and cytokines generating novel cryptic bioactive ligands [PDF]

, 2019
Dipeptidyl peptidase 4 (DPP4) is an exopeptidase found either on cell surfaces where it is highly regulated in terms of its expression and surface availability (CD26) or in a free/circulating soluble constitutively available and intrinsically active form.
Aguilar-Pérez, Alexandra, Awad, Mohamed E., Eisa, Nada H., Elmansi, Ahmed M., Fulzele, Sadanand, Hamrick, Mark W., Herberg, Samuel, Hill, William D., Hussein, Khaled A., Isales, Carlos M., Kondrikov, Dmitry, McGee-Lawrence, Meghan E., Periyasamy-Thandavan, Sudharsan, Volkman, Brian F.   +13 more
core   +1 more source

Regulation of the Chemokine Receptor CXCR4 by Hypoxia [PDF]

The Journal of Experimental Medicine, 2003
Cell adaptation to hypoxia (Hyp) requires activation of transcriptional programs that coordinate expression of genes involved in oxygen delivery (via angiogenesis) and metabolic adaptation (via glycolysis). Here, we describe that oxygen availability is a determinant parameter in the setting of chemotactic responsiveness to stromal-derived factor 1 ...
T. Schioppa, B. Uranchimeg, A. Saccani, S. K. Biswas, A. Doni, A. Rapisarda, S. Bernasconi, S. Saccani, M. Nebuloni, G. Vago, A. Mantovani, G. Melillo, A. Sica   +12 more
openaire   +4 more sources

Spatio-temporal regulation of concurrent developmental processes by generic signaling downstream of chemokine receptors [PDF]

, 2018
Chemokines are secreted proteins that regulate a range of processes in eukaryotic organisms. Interestingly, different chemokine receptors control distinct biological processes, and the same receptor can direct different cellular responses, but the basis ...
Malhotra, Divyanshu, Raz, Erez, Shin, Jimann, Solnica-Krezel, Lilianna   +3 more
core   +2 more sources

Anterograde Trafficking of CXCR4 and CCR2 Receptors in a Prostate Cancer Cell Line

Cellular Physiology and Biochemistry, 2013
Background: Most prostate cancer-related deaths result from metastasis. CXCR4 and CCR2 are known to govern cellular processes resulting in cell migration, proliferation and survival.
Kelsie Gillies, Jaime Wertman, Nicholle Charette, Denis J. Dupré   +3 more
doaj   +1 more source

Accelerated in vivo proliferation of memory phenotype CD4+ T-cells in human HIV-1 infection irrespective of viral chemokine co-receptor tropism. [PDF]

, 2013
CD4(+) T-cell loss is the hallmark of HIV-1 infection. CD4 counts fall more rapidly in advanced disease when CCR5-tropic viral strains tend to be replaced by X4-tropic viruses.
A Kaur, A Llano, A Yates, AN Phillips, Andrea Hegedus, Andrew Worth, B Asquith, Catherine de Lara, D Berhanu, Daniel C. Douek, DC Douek, DC Douek, DC Macallan, DC Macallan, DC Macallan, DC Macallan, DD Ho, Derek Macallan, DL Wallace, EJ Heeregrave, HC Lane, I den Braber, J Embretson, JM Brenchley, JM McCune, JV Giorgi, K Ladell, Karoliina Laamanen, L Cicin-Sain, LJ Picker, M Catalfamo, M Hellerstein, M Koot, MD Hazenberg, MK Hellerstein, MP Davenport, N Brieu, N Vrisekoop, Peter Beverley, R Busch, R Shankarappa, RJ De Boer, RJ De Boer, RM Ribeiro, RM Ribeiro, RS Veazey, SA Handley, TW Chun, V Sanchez, Yan Zhang   +49 more
core   +3 more sources

Mathematical Model of HIV superinfection dynamics and R5 to X4 switch [PDF]

, 2006
During the HIV infection several quasispecies of the virus arise, which are able to use different coreceptors, in particular the CCR5 and CXCR4 coreceptors (R5 and X4 phenotypes, respectively).
Bagnoli, Franco, Lio, Pietro, Sguanci, Luca   +2 more
core   +1 more source

The Role of the CXCL12/CXCR4/ACKR3 Axis in Autoimmune Diseases

Frontiers in Endocrinology, 2019
Chemokine receptors are members of the G protein-coupled receptor superfamily. These receptors are intimately involved in cell movement, and thus play a critical role in several physiological and pathological situations that require the precise ...
Eva M. García-Cuesta, César A. Santiago, Jesús Vallejo-Díaz, Yasmina Juarranz, José Miguel Rodríguez-Frade, Mario Mellado   +5 more
doaj   +1 more source

SDF-1 and PDGF enhance [alpha]v[beta]5-mediated ERK activation and adhesion-independent growth of human pre-B cell lines [PDF]

, 2009
CD23 acts through the [alpha]v[beta]5 integrin to promote growth of human pre-B cell lines in an adhesion-independent manner. [alpha]v[beta]5 is expressed on normal B-cell precursors in the bone marrow.
Acharya, M., Cushley, W., Edkins, A.L., Ozanne, B.W.   +3 more
core   +2 more sources

Solubilization of the Chemokine Receptor CXCR4

Biochemical and Biophysical Research Communications, 2000
The chemokine receptor CXCR4 was solubilized from the human T-cell line CEM by using the detergent n-dodecyl-beta-maltoside (DDM) and cholesteryl hemisuccinate ester (CHS). Binding studies with (125)I-SDF-1alpha revealed a dissociation constant of 5.33 nM and a receptor density (B(max)) of 2.68 pmol/mg in CEM membranes at 4 degrees C.
R, Staudinger, J C, Bandres
openaire   +2 more sources

The Recombinant Protein Based on Trypanosoma cruzi P21 Interacts With CXCR4 Receptor and Abrogates the Invasive Phenotype of Human Breast Cancer Cells

Frontiers in Cell and Developmental Biology, 2020
Trypanosoma cruzi P21 is a protein secreted by the parasite that plays biological roles directly involved in the progression of Chagas disease. The recombinant protein (rP21) demonstrates biological properties, such as binding to CXCR4 receptors in ...
Bruna Cristina Borges, Bruna Cristina Borges, Isadora Akemi Uehara, Marlus Alves dos Santos, Flávia Alves Martins, Fernanda Carvalho de Souza, Álvaro Ferreira Junior, Felipe Andrés Cordero da Luz, Mylla Spirandelli da Costa, Ana Flávia Oliveira Notário, Daiana Silva Lopes, Samuel Cota Teixeira, Thaise Lara Teixeira, Patrícia de Castilhos, Claudio Vieira da Silva, Marcelo José Barbosa Silva   +15 more
doaj   +1 more source