Cell-surface pili are important virulence factors that enable pathogens to adhere to specific host tissues and to modulate host immune response [ 63].
Since Cav-1 critically modulates both the epithelial and host tissue microenvironment, the success of novel treatment strategies that target both compartments should correlate with serum Cav-1 responses.
Amongst numerous bacteriocidal and nutritional roles, they may also favourably modulate host immune responses in local and remote tissues.
The range of parasites with specific lifecycles, target tissues, and unique gene products to modulate host pathways is an incredibly rich experimental vein to tap.
The A. suum secretome comprises about 750 molecules and contains many peptidases used for penetration and degradation of host tissue and molecules which serve to escape or modulate the host immune response.
The complement system is an intricate innate immune surveillance pathway that is able to discriminate between healthy host tissue, diseased host tissue, apoptotic cells and foreign invaders while modulating the elimination and repair of host tissue accordingly.
The vascularization of a scaffold is a complex process, and is modulated by the presence of transplanted cells, exogenous and endogenous signaling proteins, and the host tissue reaction, among other influencing factors.
Numerous animal models consistently demonstrated that gut microbiota can modulate host energy homeostasis and adiposity through different mechanisms, e.g., energy harvest from the diet, LPS-induced chronic inflammation, modulation of tissue fatty acid composition, and gut-derived peptide secretion.
However, in contrast to CTLA-4, PD-1 appears to play a greater role in limiting and modulating the activity of T cells in peripheral tissues and organs during inflammatory responses in an effort to prevent host tissue damage.
