antibody-dependent cellular cytotoxicity (ADCC), the release of cytokines, NO
production and expression of antigen (Ag) molecules, dispensation and phagocytosis. The DCs are important for the stimulation of innate immune memory B and T
cells. Through several stages of DCs’ modification, the modulators of non-specific
immunity along with NKCs are controlled, which regulates the adaptive and innate
immune system by releasing IFN-c, GM-CSF and TNF-a (Jantan et al. 2015). The
integrated or complement system is the tertiary relevant factor of nonspecific
immunity. The key effectors of humoral immunity amongst whole physiological
perturbations of host defenses mechanism. The complement system’s
(CSs) mechanisms/components (C3a and C3b) are triggered by component C9, and
increase and intervene immune response (Oh et al. 2012). Adaptive immunity or
acquired immune system is developed by producing antigen-specific B and T
lymphocytes over a gene reorganization procedure. The introduction of the body to
an antigen (pathogen) to produce an acquired immune response that matures in
weeks or months or maybe long-lasting or even life-long is termed as active
immunity. Active immunity might be natural or artificially developed. The immune
response of higher animals is specially equipped with adaptive immunity. The
antigen-specific immune reactions are intimately involved in the acquired immune
system. The active phagocytic activity of myelogenous cells (MCs) and Tc is
increased by Th1 lymphocytes which release IFN-c, TNF-a, and interleukin-2. The
IL-4, IL-10 and IL-5, are composed of Th2 lymphocytes, classified by B
lymphocytes-stimulated secretion of ABs. The pathogens, toxins, or bacteria are
deactivated when binding with the antibodies (ABs). Besides, ABs can opsonize
various impaired microbes, pathogens, and activate bacteria eradication by
phagocytes via stimulation of various complement proteins (Puri et al. 1994; Jantan
et al. 2015). The type of cells involved in the adaptive and innate immune system
are outline in Fig. 6.1.
6.2 Immunomodulators
In a healthy body, the immune system maintains equilibrium inside the organism
and protect from pathogens. The purpose and efficacy of the immune system are
altered by several endogenous and exogenous influences that produce either
immunostimulation or immunosuppression. Numerous substances having an
activity to regulate or modify pathophysiological progress are termed as
immunomodulators (Jantan et al. 2015). In other words, the biomolecules of biological origin or synthetic, capable of modulating, or normalizing, suppressing and
stimulating or modify activity of any components of adaptive or innate immunity,
decreasing the inflammatory responses are termed as immunoaugmentors,
immunorestoratives, immunomodulators or biological response modifiers (BRMs).
Immunomodulators are mostly classified into immunosuppressants, immunostimulants and immunoadjuvants in clinical practice. Immunoadjuvants are distinct
immune mechanism stimulators that are added to vaccines, to enhance the immune
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V. K. Gurjar and D. Pal
production and expression of antigen (Ag) molecules, dispensation and phagocytosis. The DCs are important for the stimulation of innate immune memory B and T
cells. Through several stages of DCs’ modification, the modulators of non-specific
immunity along with NKCs are controlled, which regulates the adaptive and innate
immune system by releasing IFN-c, GM-CSF and TNF-a (Jantan et al. 2015). The
integrated or complement system is the tertiary relevant factor of nonspecific
immunity. The key effectors of humoral immunity amongst whole physiological
perturbations of host defenses mechanism. The complement system’s
(CSs) mechanisms/components (C3a and C3b) are triggered by component C9, and
increase and intervene immune response (Oh et al. 2012). Adaptive immunity or
acquired immune system is developed by producing antigen-specific B and T
lymphocytes over a gene reorganization procedure. The introduction of the body to
an antigen (pathogen) to produce an acquired immune response that matures in
weeks or months or maybe long-lasting or even life-long is termed as active
immunity. Active immunity might be natural or artificially developed. The immune
response of higher animals is specially equipped with adaptive immunity. The
antigen-specific immune reactions are intimately involved in the acquired immune
system. The active phagocytic activity of myelogenous cells (MCs) and Tc is
increased by Th1 lymphocytes which release IFN-c, TNF-a, and interleukin-2. The
IL-4, IL-10 and IL-5, are composed of Th2 lymphocytes, classified by B
lymphocytes-stimulated secretion of ABs. The pathogens, toxins, or bacteria are
deactivated when binding with the antibodies (ABs). Besides, ABs can opsonize
various impaired microbes, pathogens, and activate bacteria eradication by
phagocytes via stimulation of various complement proteins (Puri et al. 1994; Jantan
et al. 2015). The type of cells involved in the adaptive and innate immune system
are outline in Fig. 6.1.
6.2 Immunomodulators
In a healthy body, the immune system maintains equilibrium inside the organism
and protect from pathogens. The purpose and efficacy of the immune system are
altered by several endogenous and exogenous influences that produce either
immunostimulation or immunosuppression. Numerous substances having an
activity to regulate or modify pathophysiological progress are termed as
immunomodulators (Jantan et al. 2015). In other words, the biomolecules of biological origin or synthetic, capable of modulating, or normalizing, suppressing and
stimulating or modify activity of any components of adaptive or innate immunity,
decreasing the inflammatory responses are termed as immunoaugmentors,
immunorestoratives, immunomodulators or biological response modifiers (BRMs).
Immunomodulators are mostly classified into immunosuppressants, immunostimulants and immunoadjuvants in clinical practice. Immunoadjuvants are distinct
immune mechanism stimulators that are added to vaccines, to enhance the immune
200
V. K. Gurjar and D. Pal