Which of the following is NOT a pathway by which complement...

Which of the following is NOT a pathway by which complement is activated? Lectin pathway (mediated by mannose-binding lectin binding invaders) Alternative pathway (antibody independent) Classical pathway (mediated by antibodies binding invaders) Cytokine pathway (mediated by cytokines binding invaders)

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00:01 Hello everyone, let's get started.

00:02 So the question is regarding complement pathway.

00:08 So the complement pathway which requires antibodies to be activated is.

00:15 So we have to tell in which complement pathway antibodies are required for the activation.

00:22 So the complement system made up of approximately 30 serum proteins and cell surface proteins or glycoproteins.

00:32 It is an important factor or effector of both the innate and antibody mediated acquired immune response.

00:41 So the complement system performs many functions like lysis of cells, obsonization, viral neurilation, inflammatory responses, solubilization, etc.

00:59 Whereas there are some complement components that include which are made up of proteins or glycoproteins.

01:11 And there are some complement activation pathways are there.

01:15 They are classical lectin and alternative pathways.

01:25 So these are complement activation pathways.

01:28 So the classical pathway is so named because it is the first complement pathway to be worked out.

01:36 So the complement pathway commonly begins with the formation of antigen antibody complex.

01:46 So thus this pathway is major effector pathway of the humoral adaptive immune response.

01:59 Whereas the lectin pathway, and the lectin pathway proteins, lectins are the proteins.

02:06 So that recognize and bind to specific carbohydrate target binds to specific carbohydrate, carbohydrate, target.

02:22 So the lectin pathway is activated by the terminal manus residue.

02:26 So manos is a carbohydrate...

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