Immune regulation of behavior

Understanding circuits between the immune and nervous system that shape pain and sensory experience.

Nerve · Treg
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Research

How do neurons and the immune system communicate to shape behavior and inflammation?

Question 01

How does the immune system shape behavior?

Immune cells and peripheral sensory neurons occupy the same tissues, and the signals immune cells release are sensed directly by the neurons that encode pain and itch. Using genetic tools, in vivo imaging of neuron activity, and light-sheet imaging of the whole nervous system, we aim to determine:

  • how inflammation and immune signals regulate behaviors such as pain and itch;
  • how chronic inflammation changes the function of these neurons and the behaviors they drive;
  • how resolution of inflammation restores, or fails to restore, neuronal function and behavior.
In vivo · GCaMP
Calcium activity in dorsal root ganglion sensory neurons, imaged in a living host. Each flash is a neuron firing.
Anterior cingulate cortex showing neurons activated by IL-31 in teal and by IL-1 beta in red Anterior cingulate cortex
Distinct cortical neurons respond to different immune signals. IL-31 activated IL-1β activated
Question 02

How does the nervous system shape inflammation?

Using human patient samples, new preclinical genetic tools, and fundamental immunology, we ask how the nervous system augments or modulates inflammation. Specifically:

  • whether individuals with sensory disorders carry altered immune or stromal signatures in their tissues;
  • whether we can find, and target, the peptide language the two systems use to communicate;
  • how the immune system adapts to different neuronal cues.
Section of skin with sensory nerve fibers in teal and cell nuclei in gray Skin
Sensory nerve fibers innervating the skin. Nerve Nuclei
Network of nerve fibers in teal with antigen-presenting cells in red Nerve · Immune
Antigen-presenting cells alongside a network of sensory nerve fibers. Nerve Antigen-presenting cells
Question 03

How can we design better therapies for pain, itch, and neurogenic inflammation?

With collaborators, we are developing new therapies for neurogenic inflammation, pain, and itch:

  • molecular therapies that target the signals exchanged between neurons and immune cells;
  • cellular therapies, including engineered human immune cells directed to the nervous system.
Cultured human sensory neurons with cell bodies and axons in teal and nuclei in gray Human sensory neurons
Human sensory neurons in culture, a platform for testing candidate molecules. Neurons Nuclei
Dorsal root ganglion with engineered human T cells in red among neurons in teal Dorsal root ganglion
Engineered human T cells inside a dorsal root ganglion. Synthetic T cells Neurons
People

The lab

Alumni

  1. 2023 Veronika Danchine Medical student, The Ohio State University UCSF Dermatology Medical Student Research Fellowship. Now a resident in anesthesiology, University Hospitals / Case Western Reserve University.
  2. 2024 Ana Danko Medical student, University of Hawaii Dean's Prize for Neuroscience Research. UCSF Dermatology and Dermatology Foundation Medical Student Research Fellowship.
  3. 2024 Grecia Ortiz Flores Medical student, UCSF Outstanding Medical Student Research Award, UCSF. Dermatology Foundation and UCSF Explore Research Scholarship.
  4. 2025 Jorge Benitez Medical student, UC San Diego Dermatology Foundation and UCSF Explore Research Scholarship.
  5. 2026 Henry Le Chang Undergraduate, Johns Hopkins University Goldwater Scholar. Woodrow Wilson Undergraduate Fellowship. UCSF Summer Undergraduate Research Scholar.

The lab is recruiting at every level. How to join →

Papers

Selected publications

  1. 2026
  2. 2025
    Keratinocyte-TRPV1 sensory neuron interactions in a genetically controllable mouse model of chronic neuropathic itch Crowther AJ*, Kashem SW*, Jewell ME, Le Chang H, Midavaine É, Rosa Casillas M, Danchine V, Rodriguez S, Kania A, Chen R, Braz JM, Basbaum AI Proc Natl Acad Sci U S APubMed CentralPubMed
  3. 2025
    Meningeal regulatory T cells inhibit nociception in female mice Midavaine É, Moraes BC, Benitez J, Rodriguez SR, Braz JM, Kochhar NP, Eckalbar WL, Tian L, Domingos AI, Pintar JE, Basbaum AI, Kashem SW SciencePubMed CentralPubMed
  4. 2022
    Local IL-23 is required for proliferation and retention of skin-resident memory TH17 cells Whitley SK, Li M, Kashem SW, Hirai T, Igyártó BZ, Knizner K, Ho J, Ferris LK, Weaver CT, Cua DJ, McGeachy MJ, Kaplan DH Sci ImmunolPubMed CentralPubMed
  5. 2017
    Antigen-presenting cells in the skin Kashem SW, Haniffa M, Kaplan DH Annu Rev ImmunolPubMed
  6. 2016
    Skin immunity to Candida albicans Kashem SW, Kaplan DH Trends ImmunolPubMed CentralPubMed
  7. 2015
  8. 2015
    Candida albicans morphology and dendritic cell subsets determine T helper cell differentiation Kashem SW, Igyarto BZ, Gerami-Nejad M, Kumamoto Y, Mohammed JA, Jarrett E, Drummond RA, Zurawski SM, Zurawski G, Berman J, Iwasaki A, Brown GD, Kaplan DH ImmunityPubMed CentralPubMed
  9. 2011

* co-first authors

All publications27
  1. 2026
  2. 2025
  3. 2025
  4. 2024
  5. 2024
  6. 2023
  7. 2023
  8. 2022
  9. 2022
  10. 2021
  11. 2020
  12. 2018
  13. 2018
  14. 2017
  15. 2017
  16. 2017
  17. 2016
  18. 2016
  19. 2016
  20. 2015
  21. 2015
  22. 2015
  23. 2015
  24. 2012
  25. 2011
  26. 2011
  27. 2007

Book chapters

  1. 2026
    Kashem SW, Midavaine É, Ortiz Flores G, Basbaum AI. Spinal cord circuits of itch. In: Follansbee, Dong, Kim, eds. The Neurological and Immunological Basis of Itch and Dermatological Disorders. Elsevier; 2026.
  2. 2017
    Kashem SW, Kaplan DH. Cutaneous dendritic cells in health and disease. In: Gaspari, Tyring, Kaplan, eds. Clinical and Basic Immunodermatology. Springer; 2017. https://doi.org/10.1007/978-3-319-29785-9
Join

Our laboratory studies how the sensory nervous system and the immune system interact in health and disease. We are disease- and tissue-agnostic, and we aim to use the immune system as a vehicle to resolve neuroanatomy and behavior.

Who we are looking for

We are recruiting postdoctoral fellows, physician-scientists, graduate, medical, and undergraduate students, and a technician. We welcome people from all backgrounds and disciplines, with a particular interest in basic molecular and cellular biology that can be brought into the study of immunology and neuroscience. We encourage independence and work with each trainee toward their long-term goals.

How to apply

Email the PI with a brief statement, one to two paragraphs, describing the questions or projects that interest you, your background, and your long-term goals, and attach a CV.

kashe007@umn.edu

We look forward to academic and industry collaborations.

The lab is currently at the Mission Bay campus of UCSF and moves to the University of Minnesota in early 2027, joining the Department of Dermatology and the Center for Immunology. We will be on the 4th floor of the Wallin Medical Biosciences Building, alongside the university's neuroscientists and the Center for Immunology.

Now

University of California, San Francisco
Mission Bay campus
San Francisco, CA

From early 2027

University of Minnesota
Department of Dermatology · Center for Immunology
Wallin Medical Biosciences Building, 4th floor
2101 6th Street SE
Minneapolis, MN 55455

Email

kashe007@umn.edu
Aerial view of the University of Minnesota East Bank campus, the Mississippi River, and the Minneapolis skyline in autumn
East Bank campus and the Mississippi River, University of Minnesota. Photo: University of Minnesota.
Brick research buildings and a green roof courtyard in the Biomedical Discovery District at the University of Minnesota
Biomedical Discovery District, home of the Center for Immunology. Photo: Alliiance.