# Defining inflammaging and monocyte dysfunction in COVID-19 disease

> **NIH NIH P30** · BRIGHAM AND WOMEN'S HOSPITAL · 2020 · $366,578

## Abstract

ABSTRACT
People over 65 are disproportionately burdened by coronavirus disease 2019 (COVID-19). Oder adults (i.e.,
65 years old and older), more often men, experience higher disease severity and increased mortality compared
to younger individuals and women (1, 2). Notably, aging is associated with chronic low-grade inflammation
(i.e., inflammaging) that can exacerbate many diseases and has been associated with reduced vaccine
response to respiratory infections, such as influenza A virus (IAV) (4, 5). COVID-19 severity has been
observed (6) to resemble a “cytokine storm” – a term first described in relation to severe IAV infection (7, 8).
Because respiratory viral infections often result in the recruitment of monocytes where they can amplify
inflammatory response, a better knowledge of monocyte dysfunction would inform the development of effective
therapeutics to reduce inflammation and improve vaccine responsiveness. A critical age-related dysregulation
observed in response to IAV infection (that we speculate may be relevant to SARS-CoV2 infection) is the
profound dysregulation in monocyte response. Notably, peripheral blood monocytes isolated from older
individuals when compared to monocytes from younger individuals have an amplified inflammatory response
(e.g., upregulated NF-kB pathway) and a profound deficit in antiviral interferon response (e.g., type I and II
interferons, interferon stimulated genes).
We have access to a unique cohort through collaborative linkage with Italian investigators at the University of
Modena and Emilio Reggio and the Modena COVID-19 working group that includes samples from 167 SARS-
CoV2 infected men and women that were hospitalized with COVID-19. The age range of the men and women
is 30-90 years old. We hypothesize that a focus on interferon, proinflammatory, metabolic and senescence
pathways will provide proteomic signatures that distinguish disease outcomes. Our primary objective in this
supplement is to characterize inflammatory signatures in serum and primary monocytes in COVID-19
disease, controlling for age and biological sex. We will characterize serum circulating proteomes and
primary monocyte proteomes using banked serum and primary monocytes from uninfected (n=20), SARS-
CoV2 positive adults hospitalized then discharged (n=20) and SARS-CoV2 positive adults that are deceased
(n=20). Serum and cellular proteomic signatures will be used to evaluate type I-III interferons, pro/anti-
inflammatory pathway, metabolic pathways and immunosenescence (e.g., senescence associated secretory
phenotype: SASP).

## Key facts

- **NIH application ID:** 10163026
- **Project number:** 3P30AG031679-10S1
- **Recipient organization:** BRIGHAM AND WOMEN'S HOSPITAL
- **Principal Investigator:** SHALENDER BHASIN
- **Activity code:** P30 (R01, R21, SBIR, etc.)
- **Funding institute:** NIH
- **Fiscal year:** 2020
- **Award amount:** $366,578
- **Award type:** 3
- **Project period:** 2008-09-01 → 2021-07-31

## Primary source

NIH RePORTER: https://reporter.nih.gov/project-details/10163026

## Citation

> US National Institutes of Health, RePORTER application 10163026, Defining inflammaging and monocyte dysfunction in COVID-19 disease (3P30AG031679-10S1). Retrieved via AI Analytics 2026-05-26 from https://api.ai-analytics.org/grant/nih/10163026. Licensed CC0.

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