Immunodeficiencies: Primary and Secondary
Immunodeficiencies result from genetic defects in immune components or from external factors that impair immune function, leading to increased susceptibility to infections and associated complications.
Biology Tumor Immunology and Immunotherapy
Tumor immunology studies the interactions between the immune system and cancer, while immunotherapy harnesses immune mechanisms to recognize and eliminate tumor cells.
Biology
Antiviral Therapy and Drug Resistance
Antiviral drugs target specific steps in the viral replication cycle, but the high mutation rates of many viruses drive the emergence of drug resistance, requiring combination therapies and novel strategies.
Biology Viral Vaccines and Vaccination Strategies
Viral vaccines train the immune system to recognize and eliminate viral pathogens, with diverse platforms including live-attenuated, inactivated, subunit, vector, and nucleic acid vaccines.
Biology
Cell Adhesion and Extracellular Matrix
Cell adhesion molecules and the extracellular matrix provide structural support, mediate cell-cell communication, and regulate tissue organization, migration, and signaling.
Biology
Human Genetic Disorders
Human genetic disorders arise from mutations in single genes, chromosomal abnormalities, or complex interactions of multiple genetic variants and environmental factors.
Biology Population Genetics and the Hardy-Weinberg Principle
Population genetics analyzes allele frequencies in populations using the Hardy-Weinberg principle as a null model to detect evolutionary forces such as selection, drift, and migration.
Biology Autoimmunity and Hypersensitivity
Autoimmunity arises when the immune system mistakenly attacks self-tissues, while hypersensitivity encompasses excessive or inappropriate immune responses that cause tissue damage.
Biology The Major Histocompatibility Complex
The major histocompatibility complex encodes MHC molecules that present peptide antigens to T cells, playing a central role in immune recognition, transplant rejection, and disease association.
Biology Emerging Viral Pathogens
Emerging viral pathogens are newly identified or re-emerging viruses that pose increasing threats to human health, often originating from animal reservoirs through zoonotic spillover.
Biology Influenza Viruses
Influenza viruses are negative-sense RNA viruses that cause seasonal epidemics and occasional pandemics through continuous antigenic drift and shift.
Biology The Cytoskeleton: Structure and Dynamics
The cytoskeleton is a dynamic network of protein filaments that provides structural support, enables cell movement, facilitates intracellular transport, and drives cell division.
Biology