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Samenvatting Moleculaire Oncologie (19/20) – Universiteit Antwerpen

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Volledige samenvatting van het vak Moleculaire Oncologie (1e Master Biomedische Wetenschappen, UA), gedoceerd door verschillende professoren onder leiding van prof. An Wouters. Bevat alle besproken informatie uit de lessen, alle afbeeldingen en kernpunten van de PowerPointpresentaties, én een verbeterde uitwerking van alle oude examenvragen van vorige jaren. Deze samenvatting biedt een volledige en gestructureerde voorbereiding waarmee slagen vrijwel gegarandeerd is. Behaald resultaat: 19/20.

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Samenvatting Moleculaire Oncologie

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Samenvatting Moleculaire Oncologie




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Les 1: Doelgerichte therapieën .......................................................................... 8
Inleiding ............................................................................................................................................... 8
Hallmarks of cancer ......................................................................................................................................... 8
Behandeling .................................................................................................................................................... 8
Definities ......................................................................................................................................................... 9
Gefractioneerd toedienen ............................................................................................................................. 10
Doelgerichte kankerbehandeling....................................................................................................... 10
Algemeen: definitie ....................................................................................................................................... 10
Doelgerichte therapie ................................................................................................................................................ 10
Definities .................................................................................................................................................................... 11
Ideale targets ............................................................................................................................................................. 11
Aangrijpingspunten van doelgerichte therapie............................................................................................. 12
Hormonale therapie................................................................................................................................................... 12
Signaaltransductie ..................................................................................................................................................... 13
Monoklonale antilichamen ........................................................................................................................................ 13
Tyrosinekinase inhibitoren......................................................................................................................................... 15
Angiogene therapie ................................................................................................................................................... 15
Uitdagingen van doelgerichte therapie......................................................................................................... 15
Voorbeeld doelgerichte therapie: de EGFR-pathway als aangrijpingspunt....................................... 16
Algemeen: de EGFR pathway ........................................................................................................................ 16
Anti-EGFR therapie ........................................................................................................................................ 17
Tyrosine kinase inhibitoren (TKI) ............................................................................................................................... 17
Monoklonale antilichamen ........................................................................................................................................ 17

Biomerkers ......................................................................................................................................... 18
Types biomerkers .......................................................................................................................................... 18
biomerker voor aanleg............................................................................................................................................... 18
screeningsbiomerker ................................................................................................................................................. 18
diagnostische biomerkers .......................................................................................................................................... 19
prognostische biomerkers ......................................................................................................................................... 19
predictieve biomerkers .............................................................................................................................................. 19
farmacodynamische biomerker ................................................................................................................................. 20
herval biomerker ....................................................................................................................................................... 20
uitdagingen biomerkers ............................................................................................................................................. 20
EGFR en KRAS als biomerker ......................................................................................................................... 20
EGFR ALS BIOMERKER ................................................................................................................................................ 20
KRAS ........................................................................................................................................................................... 21

Les 2: angiogenese ........................................................................................... 22
HIF activeert angiogene factoren ...................................................................................................... 22

2

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algemeen ....................................................................................................................................................... 22
HIF1: hypoxie-induceerbare factor ............................................................................................................... 23
structuur HIF1 ............................................................................................................................................................ 23
Proces HIF1 ................................................................................................................................................................ 23
doelwitgenen HIF1 ..................................................................................................................................................... 24

de vorming van nieuwe bloedvaten d.m.v sprouting ........................................................................ 25
het proces van sprouting .............................................................................................................................. 25
de ‘tip’ cel ...................................................................................................................................................... 26
Kenmerken................................................................................................................................................................. 26
Proces ........................................................................................................................................................................ 26
selectie van ‘tip’ cel.................................................................................................................................................... 26
de ‘stalk’ cel................................................................................................................................................... 27
kenmerken ................................................................................................................................................................. 27
notch signalisatie ....................................................................................................................................................... 27
elongatie van de ‘stalk’ cel ......................................................................................................................................... 27
rol van VEGFR-1 ......................................................................................................................................................... 28
‘Tip’ cel vs. ‘stalk’ cel .................................................................................................................................................. 28
stalk cellen en vorming van een lumen...................................................................................................................... 28
de ‘falanx’ cel ................................................................................................................................................ 28
kenmerken ................................................................................................................................................................. 28
mauturatie van het gevormde bloedvat ....................................................................................................... 29
kenmerken ................................................................................................................................................................. 29

hypoxie veroorzaakt een abnormale tumorvasculatuur ................................................................... 29
proces ........................................................................................................................................................................ 30

antiangiogene middelen in de behandeling van kanker.................................................................... 30
inhibitie van angiogenese via VEGF .............................................................................................................. 30
medicatie....................................................................................................................................................... 30
normalisatie van de tumorvasculatuur.............................................................................................. 31
endotheliale normalisatie bij phd-2 haplodeficiënte muizen ....................................................................... 31
bijkoende mechanismen die leiden tot verhoogde bloedtoevoer .................................................... 32
(2) ‘Intussusceptive’ microvasculaire groei ................................................................................................... 32
(3) Vasculaire co-optie .................................................................................................................................. 33
(4) vasculogenese .......................................................................................................................................... 33
vasculogene ‘mimicry’ ................................................................................................................................... 33
rol van kankerstamcellen in tumor neovascularisatie .................................................................................. 33

les 3: oncogenetica: epigenetische veranderingen........................................... 34
inleiding ............................................................................................................................................. 34
Vroeger.......................................................................................................................................................... 34

3

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Biomedische Wetenschappen: Zelfgemaakte samenvattingen, Uitgewerkte oude examenvragen en de beste Notities

Wij verkopen hier al onze zelfgemaakte samenvattingen, notities en uitgewerkte oude examenvragen voor alle vakken van de richting Biomedische Wetenschappen aan UAntwerpen (zowel voor de volledige Bachelor opleiding & alle Master opleidingen). Onze collectie bestaat uit een ruim assortiment van zeer uitgebreide samenvattingen van lessen, hoorcolleges, boeken, PowerPoints, slides, oefensessies, seminaries, practicum, verslagen, assignments, voorbeeld examenvragen en uitgewerkte (oude) examenvragen. Met vermeldingen tussenin van wat de prof belangrijk vindt & wat zeker op het examen komt. Wij hebben telkens geschrapt wat is weggevallen en aangeduid wat overbodige leerstof is en dus nooit op het examen komt. Onze collectie bevat alles wat je nodig hebt om te kunnen slagen op jouw examens (met een minimum score van 15/20). Zodat jij met een gerust hart de Blok overleeft & Dit alles voor een eerlijke prijs!!! :))

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