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1.
Carlos A. Barrero Prasun K. Datta Satarupa Sen Satish Deshmane Shohreh Amini Kamel Khalili Salim Merali 《PloS one》2013,8(7)
Human immunodeficiency virus type 1 encoded viral protein Vpr is essential for infection of macrophages by HIV-1. Furthermore, these macrophages are resistant to cell death and are viral reservoir. However, the impact of Vpr on the macrophage proteome is yet to be comprehended. The goal of the present study was to use a stable-isotope labeling by amino acids in cell culture (SILAC) coupled with mass spectrometry-based proteomics approach to characterize the Vpr response in macrophages. Cultured human monocytic cells, U937, were differentiated into macrophages and transduced with adenovirus construct harboring the Vpr gene. More than 600 proteins were quantified in SILAC coupled with LC-MS/MS approach, among which 136 were significantly altered upon Vpr overexpression in macrophages. Quantified proteins were selected and clustered by biological functions, pathway and network analysis using Ingenuity computational pathway analysis. The proteomic data illustrating increase in abundance of enzymes in the glycolytic pathway (pentose phosphate and pyruvate metabolism) was further validated by western blot analysis. In addition, the proteomic data demonstrate down regulation of some key mitochondrial enzymes such as glutamate dehydrogenase 2 (GLUD2), adenylate kinase 2 (AK2) and transketolase (TKT). Based on these observations we postulate that HIV-1 hijacks the macrophage glucose metabolism pathway via the Vpr-hypoxia inducible factor 1 alpha (HIF-1 alpha) axis to induce expression of hexokinase (HK), glucose-6-phosphate dehyrogenase (G6PD) and pyruvate kinase muscle type 2 (PKM2) that facilitates viral replication and biogenesis, and long-term survival of macrophages. Furthermore, dysregulation of mitochondrial glutamate metabolism in macrophages can contribute to neurodegeneration via neuroexcitotoxic mechanisms in the context of NeuroAIDS. 相似文献
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Double-stranded RNA unwinding and modifying activity is detected ubiquitously in primary tissues and cell lines. 总被引:19,自引:4,他引:15 下载免费PDF全文
R W Wagner C Yoo L Wrabetz J Kamholz J Buchhalter N F Hassan K Khalili S U Kim B Perussia F A McMorris et al. 《Molecular and cellular biology》1990,10(10):5586-5590
A double-stranded RNA unwinding and modifying activity was found to be present in a wide range of tissues and cell types. The level of activity did not vary significantly with respect to the state of cell differentiation, cell cycle, or transformation. Thus, the unwinding and modifying activity, localized in the nucleus in somatic cells and capable of converting many adenosine residues to inosine, appears to be one of the housekeeping genes. 相似文献
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Maryam Ghodrati Siahmazgi Mohammad Ali Nasiri Khalili Mehdi Zeinoddini Fathollah Ahmadpour Sirus Khodadadi 《International journal of peptide research and therapeutics》2020,26(2):767-774
Immunotoxin is a recombinant fusion toxin which has been developed to kill cancer cells selectively. DT389GCSF as a new immunotoxin consists of a truncated 相似文献
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Abarghooi Kahaki Fatemeh Monzavi Sakineh Bamehr Hadi Bandani Eshagh Payandeh Zahra Jahangiri Abolfazl Khalili Saeed 《International journal of peptide research and therapeutics》2020,26(4):2077-2087
International Journal of Peptide Research and Therapeutics - Membrane proteins play important functions, such as cellular communication and transferring materials in the cell. Many membrane... 相似文献
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Rahbar Mohammad Reza Zarei Mahboubeh Jahangiri Abolfazl Khalili Saeed Nezafat Navid Negahdaripour Manica Fattahian Yaser Ghasemi Younes 《International journal of peptide research and therapeutics》2020,26(3):1269-1282
International Journal of Peptide Research and Therapeutics - Acinetobacter baumannii is an important pathogen responsible for nosocomial infections worldwide. Trimeric autotransporters, the... 相似文献