Antibodies As Therapeutic Entities Flashcards
How do you get polyclonal antibodies?
Often immunise donor animal with some form of adjuvant, do this three times and try to get the maximum response. Take a small blood sample, then do affinity purification with antibodies that stick to your antigen
What is omab?
Mouse
What is zmab?
Chimeric
What is zumab or xizumab?
Human antibody
What is umab?
Fully human
With ximab, what sections can be switched?
Fab sections, do fab swaps for light and heavy chain
What do you swap for zumabs?
CDRs, have transferred in an entire variable domain
What is good about transgenic mice?
They have a human immune system so they can make human antibodies
How did rituximab work?
Was a depletion antibody - anti cd20 that depleted B cells
Would kill off stuff to make B cells numbers in peoples blood drop, was good for cancer, now used in rheumatoid arthritis
What is good about bispecifics?
One arm has a different specificity to another, can use this as attaching two things to one another