Doke Mayur, McLaughlin Jay P, Cai James J, Pendyala Gurudutt, Kashanchi Fatah, Khan Mansoor A, Samikkannu Thangavel
Department of Pharmaceutical Sciences, Irma Lerma Rangel College of Pharmacy, Texas A&M University, TX 78363, USA.
Department of Pharmacodynamics, College of Pharmacy, University of Florida, Gainesville, FL 32611, USA.
Mol Ther Nucleic Acids. 2022 Jul 6;29:243-258. doi: 10.1016/j.omtn.2022.07.001. eCollection 2022 Sep 13.
Clinical research has proven that HIV-positive (HIV) individuals with cocaine abuse show behavioral and neurocognitive disorders. Noncoding RNAs (ncRNAs), such as long ncRNAs (lncRNAs) and microRNAs (miRNAs), are known to regulate gene expression in the contexts of HIV infection and drug abuse. However, there are no specific lncRNA or miRNA biomarkers associated with HIV-1 Transactivator of transcription protein (Tat) and cocaine coexposure. In the central nervous system (CNS), astrocytes are the primary regulators of energy metabolism, and impairment of the astrocytic energy supply can trigger neurodegeneration. The aim of this study was to uncover the roles of lncRNAs and miRNAs in the regulation of messenger RNA (mRNA) targets affected by HIV infection and cocaine abuse. Integrative bioinformatics analysis revealed altered expression of 10 lncRNAs, 10 miRNAs, and 4 mRNA/gene targets in human primary astrocytes treated with cocaine and HIV-1 Tat. We assessed the alterations in the expression of two miRNAs, hsa-miR-2355 and hsa-miR-4726-5p; four lncRNAs, LINC01133, H19, HHIP-AS1, and NOP14-AS1; and four genes, NDUFA9, KYNU, HKDC1, and LIPG. The results revealed interactions in the LINC01133-hsa-miR-4726-5p-NDUFA9 axis that may eventually help us understand cocaine- and HIV-1 Tat-induced astrocyte dysfunction that may ultimately result in neurodegeneration.
临床研究已证明,滥用可卡因的HIV阳性个体存在行为和神经认知障碍。已知非编码RNA(ncRNA),如长链ncRNA(lncRNA)和微小RNA(miRNA),在HIV感染和药物滥用的背景下调节基因表达。然而,尚无与HIV-1转录激活蛋白(Tat)和可卡因共同暴露相关的特定lncRNA或miRNA生物标志物。在中枢神经系统(CNS)中,星形胶质细胞是能量代谢的主要调节者,星形胶质细胞能量供应受损可引发神经退行性变。本研究的目的是揭示lncRNA和miRNA在调节受HIV感染和可卡因滥用影响的信使RNA(mRNA)靶标中的作用。综合生物信息学分析显示,在用可卡因和HIV-1 Tat处理的人原代星形胶质细胞中,10种lncRNA、10种miRNA和4种mRNA/基因靶标的表达发生了改变。我们评估了两种miRNA,即hsa-miR-2355和hsa-miR-4726-5p;四种lncRNA,即LINC01133、H19、HHIP-AS1和NOP14-AS1;以及四种基因,即NDUFA9、KYNU、HKDC1和LIPG的表达变化。结果揭示了LINC01133-hsa-miR-4726-5p-NDUFA9轴中的相互作用,这最终可能有助于我们理解可卡因和HIV-1 Tat诱导的星形胶质细胞功能障碍,而这最终可能导致神经退行性变。