O HIV protein Tat mediates the induction and release of EV-miR-7 that is definitely taken up by neurons, leading in turn, to downregulation of neuronal NLGN2 and ensuing synaptic alterations. Importantly, synaptic impairment could possibly be reversed by pretreatment of neurons having a neurotropic factor PDGF-CC. Funding: This perform was supported by grants DA040397, MH112848 (S.B.) and DA042704, DA046831 (G.H.) in the National Institutes of Health. The help by Nebraska Center for PI3Kγ Gene ID Substance Abuse Investigation is acknowledged.PF02.HIV-1 Tat-induced astrocytic extracellular vesicle miR-7 impairs synaptic architecture Guoku Hu, Fang Niu, Ke Liao and Shilpa Buch University of Nebraska Medical Center, Omaha, USAPF02.The pericytes-derived extracellular vesicle-mimetic nanovesicles rescues erectile αvβ6 Compound function by enchancing penile neurovascular regeneration within a mouse model of cavernous nerve injury. Jiyeon Ocka, Guonan Yinb, Mi-Hye Kwona, Kang-Moon Songa, Kalyan Ghataka, Nguyen Nhat Minha, Min-Ji Choic, Yong Song Ghod, Ji-Kan Ryua and Jun-Kyu SuhaaIntroduction: Despite the fact that mixture antiretroviral therapy (cART) has improved the well being of millions of these living with HIV, the penetration into the CNS of numerous such therapies is restricted, thereby resulting in residual neurocognitive impairment, generally known as NeuroHIV. In addition, despite the fact that cART can successfully suppress peripheral viremia, there’s a continuous persistence of your cytotoxic viral Transactivator of transcription (Tat) protein in tissues for instance the brain, thereby contributing to neuronal injury. Methods: Transmission electron microscopy, NanoSight and western blot analyses have been utilized to characterize astrocyte-derived EVs (ADEVs). Amongst the various dysregulated miRs in the ADEV cargo, miR-7 levels were discovered to become upregulated by real-time PCR. Uptake of ADEVs by neurons was assessed by confocal microscopy. Rodent hippocampal neurons have been exposed to Tat-ADEVs and assessed for inhibitory (GAD65 and gephyrin) and excitatory (vGlut1 and PSD95) synapses by immunostaining and confocal microscopy. Results: Expression level of miR-7 was upregulated within the astrocytes from SIV+/HIV+ brains. Moreover, Tat-stimulated astrocytes also demonstrated upregulated expression and release of miR-7 inside the EVs, that were taken up by neurons, resulting in synaptic injury. Moreover, our benefits also demonstrated that exposure of hippocampal neurons to Tat-ADEVs resulted in decreased expression of neuronal NLGN2, which in turn, led to loss of both excitatory and inhibitory synaptic densities. Furthermore, we also demonstrated a neuroprotective function of PDGF-CC in rescuing TatADEV-mediated synaptic loss.National Study Center for Sexual Medicine and Division of Urology, Inha University College of Medicine, incheon, Republic of Korea; bNational Investigation Center for Sexual Medicine and Division of Urology, Inha University College of Medicine, Incheon, Republic of Korea; cinha university urology, incheon, Republic of Korea; dDepartment of Life Sciences, Pohang University of Science and Technologies, Pohang, Republic of KoreaIntroduction: Extracellular vesicles (EVs) includes many proteins, mRNA and miRNA, that have quite a few regulatory effects on recipient cells. On the other hand, most mammalian cells release low quantities of EVs, therefore, we use bioengineered process and extract extracellular vesicle-mimetic nanovesicles from mouse cavernous pericyte. The aim of this study was to investigate effectiveness of pericytes-derived further.