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County project tackling AIDS and HIV reports fewer new cases

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POST GAZETTE - Allegheny County health officials are reporting progress in the fight against AIDS by reducing new HIV cases. A key part of this effort is education. The MidAtlantic AIDS Education and Training Center, led by Linda Frank, has been involved in efforts to fight AIDS for the past 30 years. The World AIDS Day 2018 conference “is about the new treatments and advancements to help us get to zero new cases,” says Frank.  

Human immunodeficiency virus infection induces lymphoid fibrosis in the BM-liver-thymus-spleen humanized mouse model

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JOURNAL OF CLINICAL INVESTIGATION INSIGHT - Jasmine Samal, Samantha Kelly, Ali Na-Shatal, Abdallah Elhakiem, Antu Das, Ming Ding, Anwesha Sanyal, Phalguni Gupta, Kevin Melody, Brad Roland, Watfa Ahmed, Aala Zakir, and Moses Bility developed a potentially novel human immune system–humanized mouse model.  

IDM’s Rinaldo discusses HIV wonder drugs and curing HIV in 1998 World AIDS Day interview (VIDEO)

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UPMC HEALTH NEWS – In the late 1990s, new and highly potent anti-HIV drugs emerged— including protease and reverse transcriptase inhibitors—which could for the first time control HIV infection. For this 1998 World AIDS Day, Pitt IDM AIDS researcher Charles Rinaldo and the late Bridget Murtagh of the Pittsburgh AIDS Task Force address transmission, drug resistance, and the radically prescient question of whether HIV could be cured.   

Matthews on why we need a public health approach to HIV (video)

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IDM's DERRICK MATTHEWS explains Pitt Public Health's work on HIV/AIDS and where we are today. "If you're a black gay man in the U.S., you have a one in two change in your lifetime of becoming HIV positive…short of the cure that we’re looking for, the biology is way ahead of the social implementation science."   

Matthews discusses the fields of infectious diseases and microbiology (IDM) (video)

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IDM's DERRICK MATTHEWS demystifies infectious diseases and microbiology with a basic overview of the fields, how they are practiced, and how disease is spread.   

Development of antibody biomarkers of long term and recent dengue virus infections

JOURNAL OF VIROLOGICAL METHODS - BURKE, MARQUES, and colleagues discuss anti-dengue NS1-specific IgG and IgG3 as potential biomarkers of long-term and recent (less than 6 months) DENV infections, respectively.   

Tradition and innovation in development of a Zika vaccine

THE LANCET - MARQUES and BURKE comment about two Zika vaccines in clinical development and describe the challenges ahead.  

Zika virus displacement by a chikungunya outbreak in Recife, Brazil

PUBLIC LIBRARY OF SCIENCE - Magalhaes, Braga, Cordeiro, Oliveira, Castanha, Maciel, Amancio, Gouveia, Peixoto-deSilva Jr., Peixoto, Britto, Lima, Lima, and Marques detected the tail end of a Zika epidemic in 2015-16 which was displaced by a chikungunya epidemic. Few dengue cases were identified despite a high number of official dengue notifications in the area during this period. Here they show the important epidemiological features of these cas... 

Rift Valley fever in animals and humans: Current perspectives

ANTIVIRAL RESEARCH - McMillen and Hartman discuss the historical role of Rift Valley Fever (RVF) as a biological weapon and conclude with an outline of the important unanswered questions for ongoing research into this important zoonotic disease.  

New roles for Cauley and Ayyavoo

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JANE CAULEY, who has served as the associate dean for research, will be stepping down from that position to take on additional responsibilities as the executive vice chair of EPI. Cauley is also a distinguished professor of epidemiology. VELPANDI AYYAVOO, currently associate dean for faculty affairs and IDM professor, will become the associate dean for research and faculty affairs. Congratulations!   

Inefficient HIV-1 trans infection of CD4+ T cells by macrophages from HIV-1 nonprogressors is associated with altered membrane cholesterol and DC-SIGN

JOURNAL OF VIROLOGY - Delucia, Rinaldo, Rappocciolo demonstrate that the use of SIMV to decrease macrophage-mediated virus transfer should be considered for future HIV therapeutic development.   

Human immunodeficiency virus type 1 (HIV-1)-mediated neuroinflammation dysredulates neurogranin and induces synaptodendritic injury

JOURNAL OF NEUROINFLAMMATION - Guha, Wagner, Ayyavoo conduct first study evaluating the potential role of Ng in the context of HIV-1 neropathogens and conclude that synaptic damage in HAND+ patients could be a result of abrogation of Ng through HIV-1 induced inflammation that dysregulates Ng-CaM interaction and downstream signaling cascades associated with synaptodendritic functions.   

In Harm’s Way: Women, HIV, Hep C, and Substance Use, hosted by MAAETC

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The MidAtlantic AIDS Education and Training Center hosted a conference that brought together regional experts to explore ways to increase awareness of the opioid and Hepatitis C epidemics affecting women and infants in Southwestern Pennsylvania. One outcome of note: they identified solutions to improve the current care model of clinical and behavioral health care for women of childbearing age who are opioid users.   

Mailliard on how cells talk and help one another via tiny tube networks

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SCIENTIFIC AMERICAN - Working with dendrites, what he calls "the quarterbacks of the immune system," IDM's ROBBIE MAILLIARD and colleagues are applying the budding field of TNT research to HIV. Now, they are investigating whether drugs that are commonly used to lower cholesterol levels could be repurposed to control viral infections.   

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Recent IDM Publications

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Rubio publishes thesis in Antimicrobial Agents and Therapy 

Rubio publishes thesis in Antimicrobial Agents and Therapy

Abigail Rubio (IDM '20) recently published In vitro Susceptibility of Multidrug-Resistant Pseudomonas aeruginosa following Treatment-emergent Resistance to Ceftolozane-tazobactam, comparing the in vitro susceptibility of multidrug-resistant Pseudomonas aeruginosa isolates 34 collected before and af... (04/20/2021)

Zika-related adverse outcomes in a cohort of pregnant women with rash in Pernambuco, Brazil 

Zika-related adverse outcomes in a cohort of pregnant women with rash in Pernambuco, Brazil

Multiple authors on behalf of the Microcephaly Epidemic Research Group, including IDM's Ernesto Marques, found the frequency of microcephaly in their results is consistent with previous studies. In addition, as children were evaluated at a later age and repeatedly by different groups of specialists... (03/19/2021)

SARS-CoV-2 infection of African green monkeys results in mild respiratory disease discernible by PET/CT imaging and shedding of infectious virus from both respiratory and gastrointestinal tracts 

SARS-CoV-2 infection of African green monkeys results in mild respiratory disease discernible by PET/CT imaging and shedding of infectious virus from both respiratory and gastrointestinal tracts

Amy L. Hartman, Sham Nambulli, Cynthia M. McMillen, Alexander G. White, Natasha Louise Tilston-Lunel, Joseph R. Albe, Emily Cottle, Matthew D. Dunn, L. James Frye, Theron H. Gilliland, Emily L. Olsen, Katherine J. O’Malley, Madeline M. Schwarz, Jaime A. Tomko, Reagan C. Walker, Mengying Xia, Matthe... (11/17/2020)

Rapid 3D Enhanced Resolution Microscopy Reveals Diversity in Dendritic Spinule Dynamics, Regulation, and Function 

Rapid 3D Enhanced Resolution Microscopy Reveals Diversity in Dendritic Spinule Dynamics, Regulation, and Function

Colleen R. Zaccard, Lauren Shapiro, Maria D. Martin-de-Saavedra, Christopher Pratt, Kristoffer Myczek, Amy Song, Marc P. Forrest, Peter Penzes Dendritic spinules are thin protrusions, formed by neuronal spines, not adequately resolved by diffraction-limited light microscopy, which has limit... (11/17/2020)
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Prevalence and correlates of prep awareness and use among black men who have sex with men and women (MSMW) in the United States 

Prevalence and correlates of prep awareness and use among black men who have sex with men and women (MSMW) in the United States

AIDS AND BEHAVIOR - Friedman, MR, Sang, JM, Bukowski, LA, Chandler, CJ, Egan, JE, Eaton, LA, Matthews, DD, Ho, K, Raymond, HF, & Stall, R. found that PrEP awareness campaigns tailored for black men who have sex with men and women (MSMW), concomitant with STI-to-PrEP interventions, will facilitate g... (10/14/2019)
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Contrasting roles of the PD-1 signaling pathway in dendritic cell-mediated induction and regulation of HIV-1-specific effector T cell functions 

Contrasting roles of the PD-1 signaling pathway in dendritic cell-mediated induction and regulation of HIV-1-specific effector T cell functions

JOURNAL OF VIROLOGY - Using samples from participants in the Multicenter AIDS Cohort study, Garcia-Bates, Palma, Shen, Gambotto, Macatangay, Ferris, Rinaldo, and Mailliard showed that PD-1 activation plays a positive role in initiating the primary T cell response. But later blocking of that pathway... (12/13/2018)

Development of antibody biomarkers of long term and recent dengue virus infections 

Development of antibody biomarkers of long term and recent dengue virus infections

JOURNAL OF VIROLOGICAL METHODS - BURKE, MARQUES, and colleagues discuss anti-dengue NS1-specific IgG and IgG3 as potential biomarkers of long-term and recent (less than 6 months) DENV infections, respectively.  (06/14/2018)

Tradition and innovation in development of a Zika vaccine 

Tradition and innovation in development of a Zika vaccine

THE LANCET - MARQUES and BURKE comment about two Zika vaccines in clinical development and describe the challenges ahead. (06/14/2018)