Neuroimmunology, brain health and environmental toxicology

Namdev Shivajirao Togre, Ph.D.

Postdoctoral Scholar, Department of Biobehavioral Health, Penn State

I am a neuroscientist working on neuroinflammation and the blood–brain barrier. For 12 years, I have studied how the immune system shapes disease, from parasites to the brain. Today, I focus on how alcohol, e-cigarettes, microplastics and flame retardants switch on the brain's immune cells through P2X7R signaling and extracellular vesicles, and why males and females respond differently.

Portrait of Namdev Shivajirao Togre, Ph.D.

About

At Penn State I am following two questions: how perinatal exposure to microplastics and organophosphate flame retardants changes learning, memory and stress circuits in adult offspring, and how microplastics drive neuroinflammation through the P2X7 receptor and extracellular vesicles.

At Temple University I showed that P2X7 receptor signaling contributes to barrier injury during chronic alcohol and e-cigarette exposure, using vapor models, knockout mice and vesicle analysis. Before that, I worked on tuberculosis under BSL-3 conditions and did my PhD on helminth-derived proteins as therapies for colitis. In total, I have about twelve years of experience in rodent models, behavior, molecular biology, immunology and compliance.

Recent

  1. Co-authored abstract on P2X7R in neuropsychiatric lupus, The Journal of Immunology.
  2. Co-authored abstract on e-cigarettes, alcohol and P2X7 signaling, Society on NeuroImmune Pharmacology conference, Annapolis.
  3. Three papers published on alcohol, e-cigarettes and the blood–brain barrier, two as first author.
12h-index
25peer-reviewed articles
25+journals peer reviewed
100+articles handled as editor

Citations and h-index from Google Scholar, as of October 2026.

Research

From exposure to behavior, I study the biological steps that connect environmental signals with brain health.

Current focus

Developmental neurotoxicology

What reaches the developing brain?

Perinatal exposure to microplastics and organophosphate flame retardants, and what it leaves in adult male and female offspring: learning and memory deficits, altered stress circuits, and sex-biased vulnerability where endocrine disruption meets chronic stress.

  • Behavioral testing of learning, memory and stress responses
  • Sex as a biological variable throughout

Current focus

Purinergic signaling and the blood–brain barrier

When does the barrier lose integrity, and how do peripheral signals reach the brain?

How chronic alcohol and e-cigarette exposure injure the barrier. P2X7 receptor signaling and extracellular vesicles link peripheral organs to neuroinflammation, and P2X7 knockout or pharmacologic inhibition protects the barrier and changes behavior.

  • First-author, co-corresponding papers in four journals

Earlier work

Infection and immunity

How does TB evade the immune system, and can a parasite’s immune tricks become a treatment?

Earlier work on Mycobacterium tuberculosis virulence and immune evasion under BSL-3 conditions, and a PhD on helminth-derived proteins as biotherapeutics for ulcerative colitis and on lymphatic filariasis.

  • Recombinant filarial proteins in DSS-induced colitis
  • Filarial challenge models in Mastomys and jirds
  • Fragment-based drug discovery against mycobacteria

Research vision

Over the next five years, I want to establish how micro- and nanoplastic exposure drives neuroinflammation through the P2X7 receptor on microglia. I plan to follow this question across four levels: in silico modeling of how plastic particles interact with the receptor, in vitro work in microglial and barrier cultures, in vivo rodent studies of behavior and barrier integrity, and brain organoid models that bring the work closer to human tissue. Reading the same question at all four levels should show which steps in the cascade are worth targeting, and which exposures matter most. Because plastic exposure is now lifelong and unavoidable, this work speaks directly to brain health across the lifespan.

Publications

Six selected papers are listed here. All 25 are on Google Scholar.

    Also two book chapters (2019, 2023).

    Experience

    Postdoctoral

    Postdoctoral Scholar

    Department of Biobehavioral Health, Penn State

    Perinatal microplastic and OPFR exposure, stress circuits and cognition; the P2X7R–extracellular vesicle axis in microplastic neuroinflammation; setting up a new laboratory.

    Postdoctoral Fellow

    Lewis Katz School of Medicine, Temple University

    Led rodent studies of alcohol and e-cigarette co-exposure. Wrote IACUC protocols and SOPs, kept a P2X7 knockout colony, mentored graduate students, and contributed to cannabinoid vapor and lupus behavior studies.

    Postdoctoral Researcher

    University of Texas at El Paso

    Tuberculosis infection studies under BSL-2, BSL-3 and ABSL-3, with qPCR, confocal microscopy and IVIS imaging of dissemination.

    Before the postdoc

    Junior Scientist

    Pathkind Diagnostics, Nagpur

    High-throughput qRT-PCR and immunodiagnostic assays under NABL quality standards, with audit-ready documentation.

    Research Associate

    National Institute of Virology (ICMR), Pune

    Cloned IgG heavy chain genes from donor samples for neutralizing antibodies against hepatitis E virus.

    Doctoral Research Fellow, Biochemistry

    Mahatma Gandhi Institute of Medical Sciences, Sevagram

    Recombinant filarial proteins as treatments for experimental colitis, and prophylaxis and drug screening for lymphatic filariasis.

    Education

    • 2019Ph.D., Biochemistry, Rashtrasant Tukadoji Maharaj Nagpur University
    • 2013M.Sc., Biochemistry, Rashtrasant Tukadoji Maharaj Nagpur University
    • 2011B.Sc., Biochemistry, Swami Ramanand Teerth Marathwada University

    Expertise

    Animal models and behavior

    • Chronic ethanol vapor
    • Automated e-cigarette exposure
    • Breeding and colony management
    • Small-animal surgery
    • Perfusion
    • Brain microdissection
    • Microvessel isolation
    • Forced swim
    • Tail suspension
    • Elevated plus maze
    • Open field
    • Barnes maze
    • Y-maze
    • Object recognition and placement

    Molecular biology and immunology

    • qRT-PCR
    • Digital PCR
    • Gene expression arrays
    • Cloning
    • Recombinant protein expression
    • Affinity chromatography and FPLC
    • MSD and ELISA
    • Western blotting
    • MTT assay
    • ADCC assay

    Vesicles, imaging and cells

    • Extracellular vesicle isolation
    • Nanoparticle tracking analysis
    • Immunohistochemistry
    • Immunofluorescence
    • Confocal microscopy
    • IVIS imaging
    • Human cell culture
    • PBMC isolation

    Microbiology and parasitology

    • Bacterial culture and growth kinetics
    • Drug screening and inhibition assays
    • Propagation of Brugia malayi
    • Lateral-flow diagnostic assays

    Biosafety and compliance

    • IACUC protocols and SOPs
    • Welfare monitoring and humane endpoints
    • BSL-2, BSL-3 and ABSL-3 (Mycobacterium)

    Analysis

    • GraphPad Prism
    • IBM SPSS
    • ImageJ
    • Homology modeling
    • Peptide prediction
    • Molecular docking

    Service

    Editorial and review

    • Associate Editor, Virulence
    • Topic Editor, Frontiers in Cellular and Infection Microbiology
    • Review Editor, Frontiers in Molecular Biosciences and Frontiers in Immunology
    • Guest Editor, Cells, JoVE and Life
    • Topical Advisory Panel, IJMS and Life

    Honors

    • 2022: Cover story, Vaccines (volume 10, issue 8)
    • 2016: Best Oral Paper, TROPACON (Indian Academy of Tropical Parasitology)
    • 2015: Babasaheb Ambedkar National Research Fellowship (BARTI, Pune)

    Talks and posters

    • Society on NeuroImmune Pharmacology, Annapolis, 2026 Abstract
    • Research Society on Alcohol, New Orleans, 2025 Poster
    • Temple Postdoctoral Symposium, 2025 Oral
    • Research Society on Alcohol, Minneapolis, 2024 Poster
    • FOCIS, Chicago, 2017 Abstract
    • TROPACON, Pondicherry, 2016 Oral

    Community and mentoring

    • Vice President, Temple University Postdoctoral Association
    • Community Leader, ASM Connect
    • Mentored six master's and two undergraduate students
    • Resource person, national training course on molecular techniques for infectious disease research, 2015 to 2017
    • Member of NPA, ASM, Research Society on Alcohol and FOCIS; life member, Society of Biological Chemists (India)

    Good science starts with a question.

    Questions about the research, potential collaborations, or an idea worth discussing? I would be glad to hear from you.

    net5227@psu.edu
    ntogre@gmail.com