magistrsko delo
Povzetek
Imunoterapija raka je skupina sodobnih terapevtskih pristopov za tarčno
zdravljenje malignih obolenj. Zelo uspešna imunoterapevtska strategija je zdravljenje s
celicami CAR-T. Zdravljenje poteka z avtolognimi limfociti T, v katere se vstavi genski
zapis za receptor CAR, celice pa se nato znova injicira v pacienta. Celice CAR-T
prepoznajo tumorski antigen, kar povzroči T-celično aktivacijo in uničenje rakavih celic.
CAR-T celične terapije so odobrene za klinično rabo, vendar so uspehi zaenkrat omejeni
le na nekatere vrste krvnih rakov. V okviru magistrskega dela smo razvili nov dizajn
receptorjev CAR, ki temeljijo na uporabi verige CD3ε, s čimer smo želeli doseči
kooperativnost med CAR in nativnim TCR. Pripravili smo pet različnih genskih
konstruktov CAR in potrdili njihovo izražanje na površini limfocitov T. Novi receptorji
CAR so ob stimulaciji s tarčnim antigenom sprožili T-celično aktivacijo. Interakcija med
receptorjem CAR in nativnim TCR je bila bolj izrazita pri inovativnih receptorjih CAR
kot pri konvencionalnih CAR. Za preučevanje mehanizma interakcije med CAR in TCR
smo z uporabo metode CRISPR-Cas9 začeli razvijati celično linijo z izbitim genom za
CD3ε. Dizajn receptorjev CAR na osnovi verige CD3ε bo služil za nadaljnji razvoj in
optimizacijo CAR-T celične terapije.
Ključne besede
rakava obolenja;imunski sistem;imunoterapija raka;celična terapija;CAR-T;T-celični receptor;himerni antigenski receptor;epsilon veriga CD3;magistrska dela;
Podatki
Jezik: |
Slovenski jezik |
Leto izida: |
2020 |
Tipologija: |
2.09 - Magistrsko delo |
Organizacija: |
UL FKKT - Fakulteta za kemijo in kemijsko tehnologijo |
Založnik: |
[T. Kostevc] |
UDK: |
577.27(043.2) |
COBISS: |
45852419
|
Št. ogledov: |
550 |
Št. prenosov: |
58 |
Ocena: |
0 (0 glasov) |
Metapodatki: |
|
Ostali podatki
Sekundarni jezik: |
Angleški jezik |
Sekundarni naslov: |
Improvement of CAR-T cell immunotherapy with the implementation of CD3ε chain |
Sekundarni povzetek: |
Cancer immunotherapy is a group of modern therapeutic approaches for
targeted treatment of malignancies. CAR-T cell therapy is a very successful
immunotherapeutic strategy where a genetic material for the CAR receptor is inserted
into the patient's lymphocytes and then reinfused back into the body. CAR-T cells are
able to recognize tumour antigen, trigger T-cell activation, and subsequently kill cancer
cells. While CAR-T cells are already approved for clinical use, their success is limited to
certain blood cancers. We developed a new design of CAR receptor that is based on the
CD3ε chain, through which we tried to achieve cooperation between CAR and TCR. We
designed and prepared five CAR constructs and showed their surface expression. We
confirmed that the receptors were able to trigger T-cell activation upon stimulation with
the target antigen. Interaction between CAR and TCR was more pronounced in new
designs of CARs than in conventional CARs. We have also started developing a cell line
with knocked-out CD3ε gene for studying the mechanism of TCR-CAR interaction.
CARs based on the CD3ε chain will serve as a platform for further development and
optimisation of CAR-T cell therapies. |
Sekundarne ključne besede: |
CAR-T;cancer immunotherapy;cell therapy; |
Vrsta dela (COBISS): |
Magistrsko delo/naloga |
Študijski program: |
1000377 |
Konec prepovedi (OpenAIRE): |
2021-12-04 |
Komentar na gradivo: |
Univ. v Ljubljani, Fak. za kemijo in kemijsko tehnologijo, smer Biokemija |
Strani: |
54 str. |
ID: |
12230402 |