Founded in 1942, the Council of Scientific & Industrial Research (CSIR) is committed to the advancement of scientific knowledge and the economic and industrial development of the country. Some of the important topics covered are astronomy, meteorology, oceanography, new materials, immunology and biotechnology. That is why the body, despite the occasional flaw, usually emerges victorious.
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Depending on his final placement, the graduate trainee should be given advanced training in one of the specialized tasks. And constant vigilance must be maintained on all frontiers and possible enemy entry points. He proclaimed the principle of self and non-self, which governs the work of the body y' sjawans.
Arms and Ammuni-
The acid which is constantly secreted in the stomach to aid in digestion kills most of the micro-organisms that have reached it intentionally or unintentionally. The distinguishing feature of the humoral response, on the other hand, is the production of a highly specific, almost tailored, homing antibody molecule. It then jumps into the bloodstream and goes in search of the enemy, eventually destroying it.
The accurate identification of the correct factory by the Twcell occurs in the same way that the enemy agent is recognized. Because the hinge region of the Y-shaped molecule is flexible, the antibody arms can bend if necessary. The exact order of the amino acids in a chain gives it a special character.
Two scientists in particular, Rodney PORTER and Gerald EDELMAN (1929-), discovered the secrets of the structure of an antibody rocket. Because the location of the guidance instructions, the place where it binds to an antigen, is in the variable region, it can charge into the enemy like a hawk. The B cells launch these missiles into the bloodstream causing them to search for the enemy.
This alerts the Tw cells, which see this part of the foreign flag along with the host's own flag.
Wargames
The result of this is that for some time, even after the first positive hint of an enemy attack, there is no noteworthy retaliation. This marks the beginning of the end of the calamity wrought by the enemy. Some T-cells, however, carry with them a permanent imprint of the enemy's logo, its antigenic identification mark.
This memory remains for a long time, in some cases the entire life of the individual. This unique feature of immunological memory is the foundation of vaccination practice. Neither he nor anyone else at the time was aware of the exact mechanism by which these war games kept the cellular army on their toes, although everyone noticed that people only get diseases like measles or mumps once in a lifetime.
Jenner had milkmaids telling him that they were not afraid of the terrible smallpox disfiguring them, because they had already suffered from the milder cowpox. It took a hundred years and another great scientist, the redoubtable Louis PASTEUR, to lay down the rules by which these war exercises of the body's defense system could be staged. Clostridium tetani, the bacteria that causes tetanus, for example, makes its base in wounds on the surface of the body.
However, the toxins they emit can affect the smooth functioning of the heart some distance away.
Mutiny of the
Much later, almost in the sixth decade of this century, it became clear that Pirquet's understanding of the phenomenon and therefore his nomenclature was not entirely correct. After being warned by the Twcells about an invasion by enemy microbes, the B cells begin mass production of the antibody missiles. IgM bombardments in the early stages of the immune war soften the enemy and prepare the ground for the battle royal, which involves a missile attack with the IgG.
IgEs are thus fundamentally designed as an integral part of the Earth's battle plan. Even the slightest disturbance, the introduction of even a small amount of enemy antigen, is enough to depress the pistons and detonate a large number of mines. These muscles, which surround the trachea and carry air in and out of the lungs, begin to spasm.
Its heavy chains have four regions of constant amino acid sequences instead of the usual three. The type I hypersensitivity is of the immediate kind that leads to an attack of asthma or rhinitis. The weaponized chemical mines are still lying in wait, waiting for an allergen to come in and press the plunger.
The body maintains a strict and constant vigilance that such mutinies of abundance take place, but seldom- Iy.
Crushing Defeats
In the first few weeks of life, victims with such a defective defense organization remain healthy because the few antibody missiles that the mother installs in her offspring during pregnancy are still active. However, when the usefulness of this foreign aid expires, the opportunistic enemies that are always hovering in the air, or·on the skin or in the food are encouraged. Although the lymphocytes are recruited in sufficient numbers from the bone marrow, none of them can be trained in the thymus.
Therefore, no one is present to check the intruder's passport or give proper instructions to the weapon-producing B cells. Under these circumstances, antibody production is severely inhibited. In the absence of a certain defect of the absence of the pyogenic system of cellular protection. Stem cells which are the precursors of the trained army of B and T cells are themselves defective or absent.
Hashimoto's thyroiditis, which affects the function of the thyroid gland, Goodpasture's syndrome, which affects the kidneys, phacogeneic uveitis, which affects the lens of the eye, hemolytic anemia, which causes the lysis of red blood cells, myasthenia gravis, which inhibits the function of skeletal and arthritic muscles. are a few examples of autoimmune disease. When they later in life appear in the open, the body's warriors quite naturally consider them to be strangers and launch a powerful attack. If an autoimmune disorder is the result of a suicidal act of the cellular army, cancer is caused by its total inaction.
So there is hope that the body's army can be trained to recognize it as foreign and look at the tumoUi as a foreign transplant.
Ceasefire
Consequently, the sentinels of one's body recognize cells of the other as non-self and regard them as trespassers. Therefore, blood from one flowed through the vessels of the other and vice versa. Nobel laureate Kad LANDSTEINER demonstrated the existence of the two most important ancient identity cards, A and B, on the surface of blood cells.
These are read by the recipient's lymphocytes to decide whether the transfused blood is compatible or not. This complex plays an important role in defining the scope, nature and extent of the chain of command of the body's defense forces. When the Tw cells read this MHC map along with the invader's, they initiate the retaliatory action of the body's defense forces.
Despite this, however, the exact matching of the donor transplant with the recipient is not possible. There usually remain one or more of the various antigenic caps that the donated organ carries, which are treated as foreign by the recipient's defense forces. On the other hand, repeated administration of small doses of the antigen also leads to the same state of tolerance.
This is one of the measures taken to overcome the mutiny of the bounty, the allergic disease.
The Helpful
Service
Each of them, which is part of the antigenic flag of that molecule, constitutes an antigenic determinant. Consequently, the total stock of these rockets produced in response to an antigen is a heterogeneous mixture. Careful selection and refinement procedures determined that the resulting hybridoma cell inherited the immortality of one parent and the ability to produce a useful antibody of the other.
For example, if precise monoclonal antibodies against TSTA can be obtained, perhaps they could be used to bombard the tumors. The high degrees of purity and specificity of monoclonal antibodies have already made them effective intelligence agents. Since the monoclonal antibodies are highly specific, they are used to identify antigenic determinants that are characteristic of certain cell types.
For example, typing of the histocompatibility antigens, so crucial in "transplantation of organs, has become much easier, thanks to the use of monoclonal antibodies. Measurement of the hormones, T3 and T4, which are secreted by the thyroid gland, for example, provide valuable clues for the functioning of this gland. Doctors treating patients suffering from disorders of the thyroid gland can derive help from such measurements.
Over the past few decades, scientists have learned a great deal about how this magnificent military of the human body works.
Glossary
Cholera: An acute infectious disease of the intestines caused by the comma bacillus, scientifically called Vibrio cholerae. Major Histocompatibility Complex (MHC): Part of the genetic inheritance that generates proteins that characterize the uniqueness of tissues of a species. MHC protein: Type of protein formed according to the genetic blueprint in that part of the genome known as Major Histocompatibility Complex.
Mucus: A clear, sticky lubricant secreted by glands in the mucous membranes that line the body cavity. Peyer's patches: white, round patches of lymph nodes scattered along the inner lining of the intestinal walls; named after Johann Conrad Peyer, a Swedish anatomist. It is an integral part of the lymphatic system, which is the basis of the body's defense against
Tetanus produces a toxin that acts directly on the nervous system and causes convulsions, general muscle stiffness, and can cause curvature of the back and neck. Thyroid: An endocrine gland located in the neck just below the level of the Adam's apple (or larynx, vocal unit). The source of infection is contaminated water and food, as well as people who carry the bacteria without showing any external signs of the disease.
Whooping cough: A contagious disease of the airways caused by the bacterium Bordetella pertussis that causes inflammation in or near the windpipe.
