2024
Glutamine and serum starvation alters the ATP production, oxidative stress, and abundance of mitochondrial RNAs in extracellular vesicles produced by cancer cells
BUGAJOVÁ, Mária; Martina RAUDENSKÁ; Klára HÁNĚLOVÁ; Jiří NAVRÁTIL; Jaromír GUMULEC et. al.Základní údaje
Originální název
Glutamine and serum starvation alters the ATP production, oxidative stress, and abundance of mitochondrial RNAs in extracellular vesicles produced by cancer cells
Autoři
BUGAJOVÁ, Mária ORCID; Martina RAUDENSKÁ ORCID; Klára HÁNĚLOVÁ; Jiří NAVRÁTIL ORCID; Jaromír GUMULEC; Frantisek PETRLAK; Tomáš VIČAR; Šárka HRACHOVINOVÁ; Michal MASAŘÍK; David KALFERT; Marek GREGA; Jan PLZAK; Jan BETKA a Jan BALVAN
Vydání
Scientific Reports, BERLIN, NATURE PORTFOLIO, 2024, 2045-2322
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10608 Biochemistry and molecular biology
Stát vydavatele
Německo
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 3.900
Kód RIV
RIV/00216224:14110/24:00137841
Organizační jednotka
Lékařská fakulta
UT WoS
001345716800036
EID Scopus
2-s2.0-85208082569
Klíčová slova anglicky
Glutamine; ATP production; Oxidative stress; Extracellular vesicles
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 27. 3. 2025 08:24, Mgr. Tereza Miškechová
Anotace
V originále
Induction of autophagy represents an effective survival strategy for nutrient-deprived or stressed cancer cells. Autophagy contributes to the modulation of communication within the tumor microenvironment. Here, we conducted a study of the metabolic and signaling implications associated with autophagy induced by glutamine (Gln) and serum starvation and PI3K/mTOR inhibitor and autophagy inducer NVP-BEZ235 (BEZ) in the head and neck squamous cell carcinoma (HNSCC) cell line FaDu. We compared the effect of these different types of autophagy induction on ATP production, lipid peroxidation, mitophagy, RNA cargo of extracellular vesicles (EVs), and EVs-associated cytokine secretome of cancer cells. Both BEZ and starvation resulted in a decline in ATP production. Simultaneously, Gln starvation enhanced oxidative damage of cancer cells by lipid peroxidation. In starved cells, there was a discernible fragmentation of the mitochondrial network coupled with an increase in the presence of tumor susceptibility gene 101 (TSG101) on the mitochondrial membrane, indicative of the sorting of mitochondrial cargo into EVs. Consequently, the abundance of mitochondrial RNAs (mtRNAs) in EVs released by FaDu cells was enhanced. Notably, mtRNAs were also detectable in EVs isolated from the serum of both HNSCC patients and healthy controls. Starvation and BEZ reduced the production of EVs by cancer cells, yet the characteristic molecular profile of these EVs remained unchanged. We also found that alterations in the release of inflammatory cytokines constitute a principal response to autophagy induction. Importantly, the specific mechanism driving autophagy induction significantly influenced the composition of the EVs-associated cytokine secretome.
Návaznosti
| GA21-06873S, projekt VaV |
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| MUNI/A/1587/2023, interní kód MU |
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| NU20J-08-00018, projekt VaV |
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| NU21-03-00223, projekt VaV |
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| 90127, velká výzkumná infrastruktura |
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| 90250, velká výzkumná infrastruktura |
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| 90251, velká výzkumná infrastruktura |
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| 90267, velká výzkumná infrastruktura |
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