Research Paper Herpes Simplex

Research Paper Herpes Simplex-65
But how viruses emerge from this sanctuary has been poorly understood, in part because it’s difficult to study ganglion cells in isolation.“The ganglion is like a miniature organ,” explains Dr. “It contains many different types of cells, including immune cells.” The researchers’ solution was an innovative culturing technique “made of nothing but neurons,” says Dr. “It allows us to study the molecular signaling and circuitry in depth, without interference from other cells.” With a clear window onto the infected cells, the researchers made a startling discovery: when jostled awake by stress, HSV-1 bursts into action, releasing a flood of proteins that jams the host’s immune reaction to interferon signals from infected cells, effectively disarming the cells’ alarm system.

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Participants obtained genital swab specimens twice daily for HSV-2 detection and monitored genital lesions for 28-day periods at baseline and at intervals after the last dose.

One hundred and thirty-four persons received all 3 doses.

These medications block the virus from replicating, which can eliminate symptoms of infections, but they are not a cure.

“The holy grail of this research is to one day eradicate latency either by getting the virus out or sealing it up permanently,” says Dr. “Understanding all the interactions between viruses and hosts could yield findings that result in better treatments for a number of viral diseases.

Preclinical studies have demonstrated that GEN-003 elicits antibody and T-cell responses in mice and is protective in a guinea pig model of recurrent HSV-2 infection [5].

We conducted a double-blind, placebo-controlled, dose-escalation phase 1/2 study of GEN-003 to evaluate the safety, immunogenicity, and effect on viral shedding of this candidate immunotherapy (clinical trials registration NCT01667341).GEN-003 is a candidate therapeutic vaccine containing HSV-2 g D2∆TMR and ICP4.2, and Matrix-M2 adjuvant.Persons with genital herpes were randomized into 3 dose cohorts to receive 3 intramuscular doses 21 days apart of 10 µg, 30 µg, or 100 µg of GEN-003, antigens without adjuvant, or placebo.There are many implications, and we’ve only scratched the surface.Genital herpes simplex virus type 2 (HSV-2) infection causes recurrent lesions and frequent viral shedding.This antigen was selected by comparing T-cell responses of HSV-2–seropositive but asymptomatic and HSV-2–exposed seronegative individuals to individuals with recurrent disease, using high-throughput HSV-2 proteomic screens [3].GEN-003 is a combination of these 2 proteins with a novel adjuvant, Matrix-M2™ [4].The management of genital herpes currently includes episodic or daily suppressive therapy with nucleoside analogues, which abrogates most recurrences but only partly reduces viral shedding and transmission [1, 2].GEN-003 contains a transmembrane deletion mutant of glycoprotein D (g D2ΔTMR), a primary target antigen for neutralizing antibody and T cells, combined with a large fragment of infected cell protein 4 (ICP4.2), an HSV-2 T-cell antigen prioritized through human T-cell screens.The findings may have implications for understanding other, more harmful pathogens that also exhibit latency, like varicella zoster, a herpes virus that causes chicken pox and shingles, and even tuberculosis and HIV. Cohen, MD, professor of ophthalmology who is leading a federally funded, multicenter study of varicella zoster infections of the eye, a potentially serious complication that can result in blindness and chronic pain.“When these viruses come out of latency, they can cause many problems,” adds Dr.


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