Host innate immune response modulation

Host innate immune response modulation refers to any biological process—often mediated by pathogens or therapeutic agents—that alters the activity level or outcome of the host's first-line defense mechanisms against infection. The innate immune system includes physical barriers like skin and mucosa; cellular components such as neutrophils, macrophages, dendritic cells; humoral factors including complement proteins and cytokines; and pattern-recognition receptors like Toll-like receptors. Modulation can involve either enhancement or suppression of these responses. For example, some bacteria suppress chemokine production in infected tissues[5], while viruses may inhibit interferon signaling pathways[4]. Therapeutic strategies sometimes aim to modulate these responses—for instance by blocking excessive inflammation in diseases like COVID‑19[3]. However, "host innate immune response modulation" is a broad biological concept rather than a discrete molecular target such as a receptor or enzyme[1][2][4][6].

Other names

Modulation of host innate immune responseModulation of the host innate immune systemHost innate immunity modulation