Longitudinal Analysis of Plasma Proteomic Alterations After BNT162b2 COVID-19 Booster Vaccination in Qatar - Summary - MDSpire

Longitudinal Analysis of Plasma Proteomic Alterations After BNT162b2 COVID-19 Booster Vaccination in Qatar

  • By

  • Sana Bentebbal

  • Ahmed Zaqout

  • Bakhita Meqbel

  • Ilham Bensmail

  • Abdullah Aldushain

  • Alberto de la Fuente

  • Remy Thomas

  • Adviti Naik

  • Hibah Shaath

  • Neyla S. Al-Akl

  • Abdi Adam

  • Houda Y. A. Moussa

  • Kyung C. Shin

  • Rowaida Z. Taha

  • Mohammed Abukhattab

  • Muna A. Al-Maslamani

  • Nehad M. Alajez

  • Abdelilah Arredouani

  • Yongsoo Park

  • Sara A. Abdulla

  • Omar M. A. El-Agnaf

  • Houari B. Abdesselem

  • Ali S. Omrani

  • Julie Decock

  • April 24, 2026

  • 0 min

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Objective:

To assess the effects of the third BNT162b2 mRNA vaccine dose on the circulating proteome over a period of 6 months, highlighting its significance in ongoing vaccination efforts.

Key Findings:
  • Infection-naïve individuals showed alterations in 11 proteins at 3 months and 8 proteins at 6 months post-booster, including significant statistical values.
  • Significant sustained increase in PARP-1 and decrease in MMP-7 were observed in both infection-naïve and previously infected individuals, with specific fold changes and p-values.
  • Dysregulation of key inflammatory proteins was noted for up to 6 months post-booster, with detailed statistical significance.
Interpretation:

The findings highlight the temporal dynamics of circulating proteomic responses post-booster vaccination, indicating potential implications for immune readiness and inflammatory processes, which could inform future vaccination strategies.

Limitations:
  • The study involved a limited sample size of 70 individuals, which may affect the generalizability of the findings.
  • The focus was solely on plasma proteomics without assessing other immune responses, which could provide a more comprehensive understanding.
Conclusion:

The study provides insights into the molecular features of immune responses following booster vaccination, which may inform future vaccination strategies and public health policies.

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