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A point mutation in the Ch3 domain of human IgG3... secretion without affecting antigen specificity
A point mutation in the Ch3 domain of human IgG3... secretion without affecting antigen specificity

... such vectors into mammalian cells and for harvesting of antibodies from culture supernatants are well established. However, despite the power of this technology, the production of antibodies in this way can be problematic. The recombinant antibodies are generally secreted at lower rates than traditi ...
IOSR Journal of Dental and Medical Sciences (IOSR-JDMS)
IOSR Journal of Dental and Medical Sciences (IOSR-JDMS)

... One definition of the immune system is that it is an intricate set of cellular, chemical and soluble protein mechanisms, intended to shield the body against alien substances such as infections and tumor cells, without attacking self-molecules. The distinction between self-molecules and alien substan ...
Plant cell wall - U of L Class Index
Plant cell wall - U of L Class Index

... In addition to hydroxyproline, cell wall proteins are often high in the amino acids proline and lysine. The NH3+ on lysine provides positive charges along the peptide backbone. The positive charges residues can associate with negatively charged groups on pectic acids, etc. In addition to electrostat ...
Neuronal plasticity and cellular immunity: shared
Neuronal plasticity and cellular immunity: shared

... long-term depression LTP long-term potentiation MHCI major histocompatibility complex, class I NF-AT nuclear factor of activated T cells κB NF-κ nuclear factor-kappa B NHEJ non-homologous end joining NK natural killer NMDA N-methyl D-aspartate RAG-1,2 recombination activating gene -1,-2 TAP1 transpo ...
PHOTOSYNTHESIS
PHOTOSYNTHESIS

Glucose metabolism regulates T cell activation, differentiation, and
Glucose metabolism regulates T cell activation, differentiation, and

... which subsequently enter the oxidative phosphorylation pathway effectively increasing ATP production. The quiescence of naïve T cells is interrupted upon engagement of the T Cell Receptor (TCR) by a specific antigen/MHC class II complex displayed on the surface of dendritic cells, concurrently with ...
Chapter 20
Chapter 20

... The size of the thymus varies with age – In infants, it is found in the inferior neck and extends into the mediastinum where it partially overlies the heart – It increases in size and is most active during childhood – It stops growing during adolescence and then gradually atrophies ...
SIRS - MODS
SIRS - MODS

... Local tissue injury and ischemia trigger local and in many cases, systemic inflammatory responses. The magnitude of these responses correlates with the magnitude of the injury itself. An exaggerated or dysregulated inflammatory response can overwhelm the normal host protective mechanisms and cause t ...
CHAPTER 8 CELLS AND THEIR ENVIRONMENT
CHAPTER 8 CELLS AND THEIR ENVIRONMENT

... action of hormones in plants. The length of day determines when some plants flower. RECEIVING SIGNALS How do cells receive signals?
 A RECEPTOR PROTEIN binds only to signals that match the specific shape of its binding site. A target cell is bombarded by hundreds of signals. But it recognizes and re ...
MINERALS AND TRACE ELEMENTS - Univerzita Karlova. Prague
MINERALS AND TRACE ELEMENTS - Univerzita Karlova. Prague

... then store the iron as ferritin. The transfer of iron from the storage ferritin (as Fe3+ ) involves reduction to ferrous state – Fe2+ in order for it to be released from ferritine. The Fe2+ is subsequently again oxidized by ferroxidase ceruloplasmin and transported bound to plasma transferrin to sto ...
Stem Cell Therapy for Critical Illness involving
Stem Cell Therapy for Critical Illness involving

... application, stem cell may be derived for either allogeneic use (from a donor to a patient) or for autologous use (from the patient’s own body). Autologous cells, however, require significant preparation time (weeks) and they would not be adequate for use in critically ill patients who will likely n ...
Immune cell migration in inflammation: present and future
Immune cell migration in inflammation: present and future

Amino Acids, Amino Sugars and Sugars Present in the Cell Wall of
Amino Acids, Amino Sugars and Sugars Present in the Cell Wall of

... carries group A polysaccharide hapten in its cell wall. Chromatographic analysis of the sugar components present in enzyme-treated cell-wall preparations revealed glucose in addition to rhamnose. Quantitative variation in the composition of group A streptococcal cell walls is known. McCarty & Lancef ...
Amino Acids, Amino Sugars and Sugars Present in
Amino Acids, Amino Sugars and Sugars Present in

... carries group A polysaccharide hapten in its cell wall. Chromatographic analysis of the sugar components present in enzyme-treated cell-wall preparations revealed glucose in addition to rhamnose. Quantitative variation in the composition of group A streptococcal cell walls is known. McCarty & Lancef ...
Antigen-presenting Cells
Antigen-presenting Cells

... of tissue cells that can be stimulated to have antigenpresenting properties active in the development of secondary or effector functions have been termed nonprofessional antigen-presenting cells. Professional APC must possess the ability to acquire complex antigens from their environment, to process ...
Dysregulation of immune homeostasis in autoimmune diseases
Dysregulation of immune homeostasis in autoimmune diseases

... lung, which induces an arthritogenic immune response in individuals that have a defined set of MHC class II molecules (human leukocyte antigen (HLA)-DRB1 molecules that present the shared epitope)8. The presence of serum antibodies to citrullinated proteins (termed anti-citrullinated protein antibod ...
The role of autoantibodies in health and disease
The role of autoantibodies in health and disease

... to correct or compensate abnormal situation in the body. The inflammation, a central mechanism of repair of injury and restoration of impaired is led and directed by autoantibodies. It is very important, from the medical point of view, to differentiate primary and secondary autoimmune processes. Pri ...
Your Amazing Immune System - how it protects your body
Your Amazing Immune System - how it protects your body

... Every day your immune system is busy protecting you from the thousands of germs around you that can make you sick. Your immune system does its job so efficiently that you don’t even notice that it is at work. Vaccinations activate your immune system, enabling it to defend the body against germs that ...
Vaccines: A Molecular View
Vaccines: A Molecular View

... response against the real pathogen(s) • Various types of vaccines are available – in all cases the pathogens or parts of them are modified so that they do not cause infection but do generate an immune response • Herd Immunity provides protection to individuals who have immature or weak immune system ...
Tyrosine-Derived Neurotransmitters
Tyrosine-Derived Neurotransmitters

... Creatine is used as a storage form of high energy phosphate. The phosphate of ATP is transferred to creatine, generating creatine phosphate, through the action of creatine phosphokinase. The reaction is reversible such that when energy demand is high (e.g. during muscle exertion) creatine phosphate ...
STEM CELLS What are stem cells? What is the reason for the
STEM CELLS What are stem cells? What is the reason for the

... chromosomes per cell. The second meiotic division is like mitosis; the number of chromosomes does not get reduced. In human reproduction, the male and female gametes (sperm and egg, respectively) which are haploid unite to form a diploid zygote. The zygote begins a journey down the fallopian tube to ...
Cavanaugh, V. J., D. H. Raulet, and A. E. Campbell. 2007. Upregulation of CD94/NKG2A receptors and Qa-1b ligand during murine cytomegalovirus infection of salivary glands. J Gen Virol 88:1440-1445.
Cavanaugh, V. J., D. H. Raulet, and A. E. Campbell. 2007. Upregulation of CD94/NKG2A receptors and Qa-1b ligand during murine cytomegalovirus infection of salivary glands. J Gen Virol 88:1440-1445.

... explain the plethora of CTLs within the infected SMG during MCMV infection. To examine the role of CD94/ NKG2A expression in cell survival, the accumulations of CD8 T cells, NK cells and NK T cells were compared in CD942 and CD94+ mouse strains at the peak of MCMV infection in salivary glands. Leuko ...
Ms. Costello`s and Dr. Gocke`s PowerPoint slides
Ms. Costello`s and Dr. Gocke`s PowerPoint slides

... The normal immune system is characterized by specificity, diversity, and memory, and it can differentiate the body’s own cells from foreign cells. ...
Immunostimulating activity of maysin i
Immunostimulating activity of maysin i

... The stimulation of immune responses is regarded as one of the important strategies to enhance the body's defense systems in the elderly and cancer patients. As the front line of our immune response, macrophages play an important role in regulating innate and adaptive immune responses by producing va ...
Lymphatic System
Lymphatic System

... Site of fetal erythrocyte production (normally ceases after birth) Stores blood platelets ...
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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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