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Immune cellular regulation on autoantibody production in pemphigus
Immune cellular regulation on autoantibody production in pemphigus

... Further studies have showed that depletion of B cells by administration of rituximab could impair the T-cell function,9 thus enhancing its effect on reduction of autoantibody production. At the early phase of autoantibody production, a potential mechanism is triggered by an exogenous antigen (e.g. f ...
Effects of intracellular and extracellular heat shock proteins on anti
Effects of intracellular and extracellular heat shock proteins on anti

... of the mammalian innate immune system include the ability (a) to rapidly recognize pathogen and/or tissue injury and (b) to signal the presence of danger to cells to the adaptive immune response (Matzinger 1994). The innate immune system is the very first inflammatory reaction and includes phagocyti ...
B Lymphocytes Provide an Infection Niche for Intracellular Bacterium
B Lymphocytes Provide an Infection Niche for Intracellular Bacterium

... properties of the macrophage and expression of genes, such as the type IV secretion system virB, that are necessary for the bacteria to survive intracellularly [6, 7]. Nevertheless, some bacteria are killed by phagocytes after appropriate activation. Studies conducted in murine experimental models h ...
Endoplasmic Reticulum (ER) Stress in the
Endoplasmic Reticulum (ER) Stress in the

... tissues and organs. According to the American Diabetes Association, a normal fasting blood glucose level is between 70 to 100 mg/dL, and the recommended fasting level is to aim for 70 to 130 mg/dL and less than 180 mg/dL after meals (5). Blood glucose is moni‐ tored by the cells in the islets of Lan ...
acALY-18 stimulates release of
acALY-18 stimulates release of

... aggregation. acALY-18 did, however, induce increased secretion of TGFβ, PDGF-AB and adhesion molecules from platelet -granules. acALY-18 did not stimulate release of dense granule contents (measured as release of ATP) from platelets, making acALY-18 unique among platelet activators. Peripheral bloo ...
Exam 2 Practice Questions
Exam 2 Practice Questions

... False, they are soluble in water. T/F: Integral proteins are called intrinsic proteins True T/F: Integral proteins are not tightly bound and are not fully embedded in the membrane. False, they are tightly bound & fully embedded T/F: Because integral proteins are embedded in the membrane, they are am ...
Mechanisms for Targeting of Proteins to Secretory Lysosomes of
Mechanisms for Targeting of Proteins to Secretory Lysosomes of

... lipoproteins and cell-wall peptidoglycans, lipoteichoic acids of Grampositive bacteria and viral RNA. [4, 6, 8]. The TLR signalling pathways ...
The regulation of B cell responses in systemic autoimmunity
The regulation of B cell responses in systemic autoimmunity

... Our immune system is a complex network made up of physical barriers and specialized proteins, cells and organs that all work together to prevent pathogens from causing disease in the body. Once the immune system has successfully mounted an immune response upon intrusion of a pathogen it will mount a ...
Licentiate thesis from the Department of Immunology
Licentiate thesis from the Department of Immunology

... response to chronic local antigenic stimulation, and can be observed in different infectious diseases, including schistosomiasis, leprosy, and leishmaniasis (Reyes-Flores, 1986; Modlin and Rea, 1988; Palma and Saravia, 1997; Rumbley and Phillips, 1999; Boros, 1999). Structure and composition of gran ...
Steel, O`Donoghue et al accepted - Spiral
Steel, O`Donoghue et al accepted - Spiral

... Leukocytes in fetal membranes in patients with preterm delivery have been shown to be activated, as shown by morphological and enzyme histochemical markers (17), and leukocyte activation may have a key role in the pathogenesis of chorioamnionitis. In preterm labour, it is thought that cytokines prod ...
Ectopic lymphoid-like structures in infection, cancer and autoimmunity
Ectopic lymphoid-like structures in infection, cancer and autoimmunity

Advances and challenges in translating stem cell therapies for
Advances and challenges in translating stem cell therapies for

... and induced pluripotent stem cells (iPSCs) can provide platforms for new cell-based therapies to treat malignant diseases.15 Their review considers how hESCs or iPSCs could be engineered to express chimeric antigen receptors that could direct cytotoxic lymphocytes to tumor sites. The safety of this ...
SURVEY AND SUMMARY Regulation of mammalian nucleotide
SURVEY AND SUMMARY Regulation of mammalian nucleotide

... synthesis for cell viability is discussed and how this may lead to potential new approaches to drug development in diseases such as cancer. INTRODUCTION A large fraction of the genome is now known to be transcribed into a wide range of RNAs whose functions are still being ascertained (1–4). Even in ...
Table 1. Strategies and mechanisms of survival of Leishmania
Table 1. Strategies and mechanisms of survival of Leishmania

... Reduced MHC class II expression by APC’s Reduced expression of co-stimulatory molecules by APC’s Inhibition of antigen processing/peptide loading, sequestration of antigen from presentation Induction of IDO inhibiting APC ...
transplantation - Shandong University
transplantation - Shandong University

... – An allogenetic MHC molecule with a bound peptide can mimic the determinant formed by a self MHC molecule plus foreign peptide – A cross-reaction of a normal TCR, which was selected to recognize a self MHC molecules plus foreign peptide, with an allogenetic MHC molecule plus peptide ...
Alfalfa Cyclins: Differential Expression during the Cell
Alfalfa Cyclins: Differential Expression during the Cell

... suspension cultured cells that were induced to form somatic embryos with redundant oligonucleotides encoding the conserved amino acid sequences K-Y-E-E-M(I)-Y-Pfor the cyclin A and B type and I-L-V(I)-D-W-L-Vfor the cyclin B class (see Methods for the nucleotide sequences). Positive colonies were is ...
Seasonal Allergies and Histamine Response
Seasonal Allergies and Histamine Response

... who have seasonal allergies tend to see a worsening of these symptoms during spring time. Decreasing high histamine One supplement is not always effective in decreasing histamine levels. A combination of supplements is typically required to help keep the behavioral, mental and physical symptoms of h ...
Tracking document
Tracking document

... High resolution typing is defined as identifying the identification of HLA alleles that encode the same protein sequence within the antigen binding site. Alleles must be defined by at a level of resolution which defines the first and second fields according to WHO Nomenclature, by at least resolving ...
Autoimmunity and pulmonary hypertension: a perspective REVIEW
Autoimmunity and pulmonary hypertension: a perspective REVIEW

... definitively at this time, there are several possibilities. It is known that in certain autoimmune conditions, a genotype can confer significantly elevated risk without complete disease penetrance. For example, in type 1 diabetes while increased risk is conferred on the basis of the HLA-DR-DQ genoty ...
Immunomodulatory effects of low dose chemotherapy and
Immunomodulatory effects of low dose chemotherapy and

... nontoxic chemotherapy should support the development of antitumor immunity in tumor-bearing hosts. In addition, CD40 ligation protects human and murine DCs from tumor-induced apoptosis by inducing expression of anti-apoptotic proteins from the Bcl-2 family [52-54]. The molecular pathways of certain ...
The effects of HIV Tat DNA on regulating the Open Access
The effects of HIV Tat DNA on regulating the Open Access

... and encodes a 72-amino acid peptide which mediates the virus trans-activation [15]. The C-terminal amino acids which are encoded by the second Tat exon contain the arginine-glycine-aspartic acid (RGD) motif and mediate cell adhesion and binding of extracellular Tat [16]. In most cases, HIV-1 Tat is ...
EFFECT OF CROTALUS ATROX VENOM ON PERITONEAL AND SPLEEN CELL... PRODUCTION
EFFECT OF CROTALUS ATROX VENOM ON PERITONEAL AND SPLEEN CELL... PRODUCTION

... produced by immune cells within the tissue, releasing specific mediators which control local circulation and cell activities. The immune system is a complex, multicomponent system that comprises lymphoid organs, cells and molecules that interact to provide a coordinate immune response. The organs of ...
Chapter 13 The Lymphatic System and Immunity
Chapter 13 The Lymphatic System and Immunity

... Initiated by inactive B cell’s contact with antigens, which bind to its surface antibodies, plus signal chemicals from T cells Activated B cell, by dividing repeatedly, forms two clones of cells—plasma (effector) cells and memory cells Plasma cells secrete antibodies into blood; memory cells are sto ...
Atlas of Antinuclear Antibodies
Atlas of Antinuclear Antibodies

... 14. Okazaki T. The structure of centromere. Protein, Nucleic Acid and Enzyme 41(15): 2230-9, 1996 15. Tojo T, et al. Small nuclear U-RNP antibodies. Nippon Rinsho 46(4): 784-9, 1988 [Japanese] 16. Van Venrooij WJ, Sillekens PT. Small nuclear RNA associated proteins: autoantigens in connective tis ...
Proc R Soc B template (v. 1.0)
Proc R Soc B template (v. 1.0)

... factors such as vitamin A deficiency and environmental enteropathy 15. At least for polio virus type 1, it is highly likely that interference by concurrent infections such as non-polio enteroviruses contribute substantially to impaired vaccine efficacy, and efficacy is also lower in the presence of ...
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Polyclonal B cell response



Polyclonal B cell response is a natural mode of immune response exhibited by the adaptive immune system of mammals. It ensures that a single antigen is recognized and attacked through its overlapping parts, called epitopes, by multiple clones of B cell.In the course of normal immune response, parts of pathogens (e.g. bacteria) are recognized by the immune system as foreign (non-self), and eliminated or effectively neutralized to reduce their potential damage. Such a recognizable substance is called an antigen. The immune system may respond in multiple ways to an antigen; a key feature of this response is the production of antibodies by B cells (or B lymphocytes) involving an arm of the immune system known as humoral immunity. The antibodies are soluble and do not require direct cell-to-cell contact between the pathogen and the B-cell to function.Antigens can be large and complex substances, and any single antibody can only bind to a small, specific area on the antigen. Consequently, an effective immune response often involves the production of many different antibodies by many different B cells against the same antigen. Hence the term ""polyclonal"", which derives from the words poly, meaning many, and clones (""Klon""=Greek for sprout or twig); a clone is a group of cells arising from a common ""mother"" cell. The antibodies thus produced in a polyclonal response are known as polyclonal antibodies. The heterogeneous polyclonal antibodies are distinct from monoclonal antibody molecules, which are identical and react against a single epitope only, i.e., are more specific.Although the polyclonal response confers advantages on the immune system, in particular, greater probability of reacting against pathogens, it also increases chances of developing certain autoimmune diseases resulting from the reaction of the immune system against native molecules produced within the host.
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