Monoclonal antibodies Flashcards
What does secukinumab target?
IL-17 A
Side effect of seckinumab
Infection (TB)
Target of ustekinumab?
Anti-IL12 and anti-IL-23 (binds to p40 subunit)
What diseases can ustekinumab be used for?
Psoriasis, psoriatic arthritis
Denosumab target and use?
Anti-RANK ligand on osteoclasts. Used for osteporosis
Side effect of denosumab?
Avascular necorosis of the jaw, injection site reactions
Tocilizumab target of action?
Anti-IL6, reduce macrophage, T and B cell, neutrophil activation
What does secukinumab treat?
Psoriasis, psoriatic arhtirits, ankylosing spondylitis
Use of tocilizumab?
Treats RA and castleman’s disease
Target and use of sarilumab?
Anti-IL-6, reduce macrophage T and B cells.
Neutrophil activation. Treats RA
What is the target for guselkumab?
Anti-IL-23 (p19 alpha subunit)
Diseases treated by guselkumab?
Psoriasis, psoriatic arthritis
What is IL-1 blockade used to treat?
Familial mediterranean fever, gout, adult onset Still’s disease
What does IL-4/5/13 blockade treat?
Eczema, asthma, eosiniophilic asthma
What does Etanercept target?
TNF alpha/beta receptor. p75 IgG fusion protein, inhibits both cytokines
What does Etanercept treat?
RA, AS, psoriasis, psoriatic arthritis
What disease do certolizumab/golimumab treat?
IBD, familial mediterranean fever
What does infliximab target?
TNF-alpha
In which conditions can infliximab be used?
RA, AS, psoriasis, psoriatic arthritis, IBD, familial mediterranean fever
what malignancy can infliximab cause?
Lymphoma
List some TNF -alpha inhibitors
Infliximab, adalimumab, golilumab, certolizumab
What is the mode of action of basiliximab?
Anti-CD25 (alpha chain of Il-2 receptor). Inhibits T cell proliferation
Which monoclonal antibody targets CD25?
Basiliximab
Use of basiliximab?
Allograft rejection (prophylaxis)
Describe abatercept
Anti-CTLA4-Ig fusion protein, reduces co-stimulation of T cells via CD28
What condition can abatercept be given to treat?
Rheumatoid arthritis
Describe the action of rituximab
Anti-CD20, depletes mature B cells
What conditions is rituximab treatment utilised in?
Lymphoma, RA, SLE
Mode of action of Natalizumab
Anti-alpha-4 beta-1 integrin. Inhibits T cell migration
Diseases treated by natalizumab
Relapsing, remitting MS, Crohn’s disease
Name an important side effect of natalizumab
JC virus reactivation
Which monoclonal antibody is useful in treating IBD?
Vedolizumab
What is the mode of action of vedolizumab?
Anti-alpha-4-beta 7 integrin. Inhibits cell migration
Describe the mode of action of Muromonab-CD3
Blocks CD3 on T cells, mouse monoclonal antibody (OKT3)
Use of muromonab-CD3 and side effects
Active allograft transplantation rejection. SEs are fever and leucopenia
Antibody in CREST syndrome?
Anti-centromere
Treatment for ankylosing spondylitis?
etanercept
Treatment for resistant psoriasis?
Etanercept
- Chronic granulomatous disease treatment?
IFN gamma
C. What immune cells detects antigen in the periphery and moves to lymph node
Dendritic cells
C. What immune cells detects antigen in the periphery and moves to lymph node
Dendritic cells
D. What immune cell detects MHC1 and kills virus infected/cancer cells. Is inhibited by MHC I
NK cells
- 72 yr lady with stiff limb girdles (Polymyositis) (which antibody is seen)
anti-Jo1
- SLE with recurrent clotting
Anti-cardiolipin antibodies
- Bloated after drinking milk but not IgE mediated ?
Lactose intolerance
- A teenage girl who when she goes cross country running gets an erythematous rash on her legs. It is well controlled by antihistamines
cold urticaria
- Woman presents with aches all over and joint stiffness?
Anti-Jo1
60 year old lady with recurrent chest infections now has reduced total serum protein and has autoimmune thrombocytopenia
CVID
- A 12 year old boy has recurrent chest infections and has an ear infection. He doesn’t have any B Cells
Bruton’s Agammaglobulinaemia
- A Girl is found to have no CD4 cells, but CD8 cells and B cells are present
BLS 2
- A boy’s father has TB. The same boy develops a mycobacterium infection, following their BCG?
Interferon gamma deficiency
- Young girl with normal B cells, normal CD8+ but absence of CD4+
BLS 2
- Young boy with normal B cell numbers and absence of CD8+ and CD4+
X-linked SCID
- Lady with spinal fracture due to severe TB
Interferon gamma receptor deficiency
- Patient with recurrent pneumococcal infections and meningitis
Complement deficiency
- Used to treat malignant melanoma, involved in T cell checkpoints
Ipilimumab or Nivolumab
- Used to prevent transplant rejection, by blocking T cell activation and
Tacrolimus or Cyclosporin
- Used to treat severe ankylosing spondylitis not controlled by NSAIDs
Etanercept
- In its immature form it is specialised to phagocytose pathogens, and in its mature form it is specialised to present to other cells
Dendritic cells
- Mentioned FAS pathway
ALPS
- Nod2/CARD15
Crohn’s disease
- Mentioned MEFV gene, periodic abdominal pain and ascites
Familial mediterranean fever
- Hypertensive and diabetic, with angioedema
Drug reaction to ACEi
- Woman with flushed face, problems breathing that has happened multiple times with enlarged liver
hereditary angioedema
- Mechanism behind cellular rejection
T cell mediated
- Mechanism behind antibody mediated rejection
B cell mediated
- Mechanism behind GVHD
Donor WBCs attack host tissue
Causes progressive multifocal leukoencephalopathy
JC virus
- What type of hypersensitivity (Gel and Coombs classification) is myasthenia gravis and what cell?
Type 2
- IPEX affects what type of immune cell?
T reg
- 16 year old girl has pleuritic chest pain, joint pain, positive ANA and Anti-Sm, no liver enzyme derangement, raised ESR
SLE
- Chimeric antigen receptor T-cell therapy against CD19: what type of haematological malignancy does it target?
ALL, some non-hodgkin lymphoma?
- Ankylosing spondylitis – they’ve tried NSAID and TNF inhibitor, what else can you target?
IL17
- 45yo woman with autoimmune diseases, low IgM, IgA and IgE; full blood count is normal?
CVID
- Which immunoglobulin is found in mucosa?
IgA
- Immunodeficiency with common gamma chain problem?
X-linked SCID
- A woman is a donor for kidney to a child, what is the max number of HLA mismatches possible?
6
- Someone with aphthous ulcers, conjunctivitis, diarrhoea & abdo pain
Crohn’s disease
- Which type of cell does Rituximab target?
Mature B cells
- cANCA positive man with glomerulonephritis and lung changes, what does he have?
Granulomatosis with polyangitis
Antibody for Graves
Stimulatory anti-TSH receptor
- Nivolumab is a PD1 inhibitor, what cells does it target?
T cells
- Woman with periorbital purple rash (heliotrope) and rash on knees, which enzyme is elevated?
Creatinine kinase (dermatomyositis)
- What Type Hypersensitivity causes serum sickness?
Type 3
- What is the effect of the gene mutation in familial Mediterranean fever?
Increased IL-1 production
- Mechanism of hyperacute allograft rejection
preformed antibodies against HLA or ABO
- Which of the following are most often used for prophylaxis against allograft rejection?
a. Mycophenolate mofetil, prednisolone, tacrolimus
- Which of the following can be used to treat rheumatoid arthritis?
a. Adalimumab: TNFalpha
- What cell in the body binds to MHC1?
NK cells
- Man has intermittent mouth & tongue swelling for the past 2 years, which is unresponsive to over-the-counter anti-histamines, is on aspirin and ACE inhibitor. What is the likely cause?
Drug induced reaction