Innate and Adaptive Immunity during SARS-CoV-2 Infection: Biomolecular Cellular Markers and Mechanisms

Area of Science:

• Immunology and Virology
• Host-pathogen interactions
• Cellular and Molecular Biology

Background:

• COVID-19, caused by SARS-CoV-2, is one of many human coronavirus threats.
• Historical pandemics like smallpox and influenza underscore the importance of targeting host immunity.
• Viruses and bacteria can influence cell cycle and cancer development, impacting host immune responses.

Purpose of the Study:

• To provide an overview of host immune responses to respiratory infections.
• To explore the role of cellular messenger proteins and immune cell markers.
• To contextualize advances in single cell sequencing for immune cell characterization.

Main Methods:

• Review of existing literature on host immunity, viral infections, and cellular signaling.
• Discussion of immune cell types, including innate and adaptive systems.
• Examination of laboratory techniques like single cell sequencing.

Main Results:

• The immune system comprises innate and adaptive components with diverse cell types and signaling cascades.
• Proteins such as CD markers, MHC, interleukins, and chemokines are crucial in immune function.
• Single cell sequencing offers enhanced insights into immune cell characterization and its role in diseases.

Conclusions:

• Understanding host immune responses is vital for combating respiratory infections and other pathologies.
• Advances in sequencing technologies improve our comprehension of immune cell dynamics.
• Immune cell characterization is key to understanding conditions like autoimmune diseases and SARS-CoV-2 infection impacts.