diplomsko delo
Povzetek
Eden izmed ključnih, evolucijsko ohranjenih, preživetvenih procesov je avtofagija,
katero lahko induciramo tudi s pomočjo naravnih spojin rastlinskega izvora. Le-te
najpogosteje izvirajo iz rastlin in so del tradicionalne kitajske medicine. Najbolj
preučene so resveratrol, DMC, berberin in celastrol, ki delujejo na zelo različne
načine. Resveratrol inducira avtofagijo preko mTOR kompleksa ter razgradnje
klasičnega receptorja avtofagije p62, DMC deluje odvisno od Atg proteinov, celastrol
preko inhibicije signalne poti Akt/mTOR in povečanja izražanja avtofagosomov in
p62, berberin pa preko hranilnega senzorja SIRT1. Vsem štirim naravnim spojinam je
skupno, da učinkovito inducirajo avtofagijo tarčnih celic in ne poškodujejo sosednjih,
zdravih celic. Tako predstavljajo velik potencial v medicini za zdravljenje rakavih in
drugih obolenj, zato je bil naš namen pregled literature o vlogi naravnih spojin
rastlinskega izvora v avtofagiji ter pregled že izvedenih študij o potencialni uporabi le-teh pri kemoterapiji. Zaradi dvoličnosti avtofagije, ki je lahko zaviralec, a tudi
spodbujevalec raka, je zelo pomembno poznavanje stadija tumorja, makrookolja ter
ustrezne kombinacije med avtofagija-inducirajočo spojino in kemterapevtikom. Kot
najboljše naravne spojine so se izkazali resveratrol, celastrol in DMC, ki inducirajo
avtofagijo v rakavih celicah ter zmanjšajo citotoksičen učinek kemoterapevtika na
okoljske zdrave celice. Naravne spojine same po sebi sicer že inducirajo avtofagijo, a
je njihov učinek na omejitev rasti rakavih celic boljši takrat, ko so uporabljene v
kombinaciji z ustreznim kemoterapevtikom.
Ključne besede
avtofagija;naravne spojine;rastlinske snovi;celastrol;resveratrol;DMC;berberin;
Podatki
Jezik: |
Slovenski jezik |
Leto izida: |
2021 |
Tipologija: |
2.11 - Diplomsko delo |
Organizacija: |
UL BF - Biotehniška fakulteta |
Založnik: |
[E. Molan] |
UDK: |
606:61:615.322(043.2) |
COBISS: |
70079491
|
Št. ogledov: |
352 |
Št. prenosov: |
74 |
Ocena: |
0 (0 glasov) |
Metapodatki: |
|
Ostali podatki
Sekundarni jezik: |
Angleški jezik |
Sekundarni naslov: |
ǂThe ǂrole of natural plant compounds in autophagy |
Sekundarni povzetek: |
One of the crucial evolutionarily preserved survival processes is autophagy, which can
also be induced with the help of natural compounds of plant origin. These most
commonly originate from plants and are part of Chinese traditional medicine. The
most studied compounds are resveratrol, DMC, berberine and ceastrol, which work in
very different ways. Resveratrol induces autophagy via the mTOR complex and
degradation of the classical p62 autophagy receptor, DMC works dependent of Atg
proteins, celastrol inhibits Akt/mTOR signaling pathway and increases expression of
autophagosomes and p62 proteins and berberin works via the SIRT1 nutrient sensor.
All four natural compounds have in common that they effectively induce target cell
autophagy and do not damage neighboring, healthy cells. Thus, they represent a great
potential in medicine for the treatment of cancer and other diseases, so our purpose
was to review the literature on natural compounds of plant origin and review already
conducted studies on their potential use in chemotherapy. Due to the hypocrisy of
autophagy that can be inhibits or promotes cancer, it is very important to know the
stage of the tumor, the microenvironment and the appropriate combination of cancer
inhibitors based on autophagy and chemotherapeutics. Resveratrol, celastrol and DMC
have been shown to be the best natural compounds, inducing autophagy in tumor cells
and preventing the cytotoxic effect of the chemotherapeutic on healthy cells. It is
known that natural compounds already induce autophagy themselves, but have a better
effect on limiting the growth of cancer cells when used in a combination with
appropriate chemotherapeutics. |
Sekundarne ključne besede: |
autophagy;natural compounds;plant compounds; |
Vrsta dela (COBISS): |
Diplomsko delo/naloga |
Študijski program: |
0 |
Konec prepovedi (OpenAIRE): |
1970-01-01 |
Komentar na gradivo: |
Univ. v Ljubljani, Biotehniška fak., Študij biotehnologije |
Strani: |
VI, 20 str. |
ID: |
13140539 |