HPV vaccines 1 Flashcards

(26 cards)

1
Q

what is the job of a vaccine

A

provide as close a mimic to viral epitopes

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2
Q

what are 2 PV vaccines

A

OPV-mutant virus
IPV-inactivated virus
produced from live virus

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3
Q

can HPV replicate cells in suspension

A

no

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4
Q

what structure are viral capsid based off

A

simple icosahedra

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5
Q

what is cervarix

A

L1 VLP
produced in insect cells
recombinant baculovirus
truncated L1
propriety adjuvant ASO4
alum+ TLR4 ligand
MPL
protein 16/18

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6
Q

what is gardasil

A

in yeast
alum based adjuvant
VLP disassembled and assembled
16/18/6/11

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7
Q

what was the vaccination programme like in uk

A

sep 2008 girls 12-13 cervarix
3 yr catch up girls age 14-17
3 injections 6-12 months
sep 2014 - two doses sufficient

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8
Q

what is cytology

A

pap smear
detects abnormal koilocytes

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9
Q

what is serology

A

detect at DNA sequence level

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10
Q

name 3 other ways we can detect and diagnose HPV

A

in situ hybridisation
immunocytochemistry
HPV testing

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11
Q

what is conisation

A

excision of cone shaped wedge from cervix
includes trnasformation zone and part of endocervical canal

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12
Q

what is imiquimod

A

anti cancer and anti viral agent
analogue of guanosine
activate TLR7/TLR8
inflammatory response in dendritic cells
used for basal cell carcinoma or squamous cell carcinomas

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13
Q

what is novavax

A

vaccine made in insect cells
made from naonoparticles

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14
Q

which 2 viruses have successfully been eradicated

A

smallpox
rhinderpest

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15
Q

first generation vaccines

A

gardasil
cervavix

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16
Q

what does gardasil 9 do

A

agianst types HPV 16/18/31/33/35/39/45/52/58 cervical cancers

17
Q

which types was epitope swapping carried out with

18
Q

name some more accessible and cheaper vaccines methods

A

made in E.coli
sub unit vaccine use isolated pentamers
deliver with current vaccine
novel delivers strategy microneedles

19
Q

what is the aim of therapeutic vaccines

A

illicit immune response in already infected person

20
Q

what are aptamers

A

oligonucleotides
form complex structure
bind with high affinity
re foldable
modulate protein-protein interactions

21
Q

how are RNA aptamers produced

A

SELEX in vitro selection

22
Q

name 2 E7 aptamers and there effect on the cell

A

SiHa
from human cervical carcinoma
HPV16 genome within
expresses E6 and 7 oncoproteins

HaCaT
control cells
immortalised human keratinocytes
no virus genome within

23
Q

what was found through FACS analysis

A

aptamers can induce apoptosis

24
Q

what aptamers is approved for clinical use

25
what other viral proteins could be used as targets
E1 helicase inhibitor inhibitor of interaction between E2 and host proteins
26
what is microwave therapy used for
podiatry and dermatology