Define natural killer cells - humoral mechanisms, Science

Assignment Help:

Define Natural killer cells (NK cells)

They are large sized lymphocytes, specifically equipped to kill virally infected cells, some of the virally infected cells acquire a special glycoprotein on their surface which signals their neighbouring cells that they are in trouble and they need help.

The NK cells are especially receptive to this cry for help because they have surface proteins which are very similar to the ones which have glycoprotein coatings. When the 2 components come together in contact, the NK cells would release lethal substances which lead to the death of infected cell. The infected cell is killed and it has a chance to multiply. The major drawback of this process is that the host cell gets sacrificed.


Related Discussions:- Define natural killer cells - humoral mechanisms

Experiment of lifting the water surface, Lifting the water surface Ben...

Lifting the water surface Bend the pointed end of a pin or use a piece of fine wire to make a hook. File the point of the hook unless it is very sharp. Put your eye on a level

What is the major source of water in city, Q. What is the major source of f...

Q. What is the major source of fresh water in the city/town/village where you live? Answer : River is a major source of fresh water.

Define age related changes in special senses, Define age related changes in...

Define age related changes in Special Senses Presbyopia (decline in the ability to focus near objects), senile cataract etc. can be observed as eye dysfunction. Ear shows dimin

Antibody mediated immune system (amis), Antibody Mediated Immune System (AM...

Antibody Mediated Immune System (AMIS) In antibody-mediated immunity, the antibodies dissolved in blood, lymph and other body fluids bi nd the antigen and trigger a response to

Explain the glomerular filtration rate (gfr), Explain the Glomerular Filtra...

Explain the Glomerular Filtration Rate (GFR) The kidneys receive a large amount of blood flow. The kidney blood flow is approximately 1200 ml per minute. One-tenth of this is f

Describe the various theories for the cause of disease, Question 1 Define ...

Question 1 Define Epidemiology and describe in detail about Disease frequency, Disease distribution and Disease determinants Question 2 Write a short note on mortality data a

Determine the depth of potential well - potential vanishes, 1.  The Lennard...

1.  The Lennard-Jones potential is given by Where A and B depend on the depth of the potential well and the distance at which potential vanishes. Draw the profile of thi

Explain the bile pigments and salts in urine, Explain the Bile pigments and...

Explain the Bile pigments and salts in urine The bile pigment, bilirubin (a pigment formed from the destruction of red blood cells), is altered in the intestine to urobilinogen

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd