2013
Differential effects of insulin and dexamethasone on pulmonary surfactant-associated genes and proteins in A549 and H441 cells and lung tissue
RUČKA, Zdeněk, Petr VAŇHARA, Irena KRONTORÁD KOUTNÁ, Lenka TESAŘOVÁ, Michaela POTĚŠILOVÁ et. al.Základní údaje
Originální název
Differential effects of insulin and dexamethasone on pulmonary surfactant-associated genes and proteins in A549 and H441 cells and lung tissue
Autoři
RUČKA, Zdeněk (203 Česká republika, domácí), Petr VAŇHARA (203 Česká republika, domácí), Irena KRONTORÁD KOUTNÁ (203 Česká republika, garant, domácí), Lenka TESAŘOVÁ (203 Česká republika, domácí), Michaela POTĚŠILOVÁ (203 Česká republika, domácí), Stanislav STEJSKAL (203 Česká republika, domácí), Pavel ŠIMARA (203 Česká republika, domácí), Jan DOLEŽEL (203 Česká republika), Václav ZVONÍČEK (203 Česká republika), Oldřich COUFAL (203 Česká republika) a Ivan ČAPOV (203 Česká republika)
Vydání
INTERNATIONAL JOURNAL OF MOLECULAR MEDICINE, UNITED STATES, SPANDIDOS PUBL LTD, 2013, 1107-3756
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10601 Cell biology
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 1.880
Kód RIV
RIV/00216224:14330/13:00066090
Organizační jednotka
Fakulta informatiky
UT WoS
000321079400027
Klíčová slova anglicky
insulin; dexamethasone; surfactant; lung carcinoma; A549; H441
Štítky
Změněno: 2. 3. 2018 10:09, Mgr. Pavel Šimara, Ph.D.
Anotace
V originále
In this study, the effects of insulin and dexamethasone on the expression and mRNA transcription of 4 pulmonary surfactant-associated proteins [surfactant protein (SFTP)A, SFTPB, SFTPC and SFTPD] were examined. The commercially available cell lines, A549 and H441, were used as acceptable models of lung surfactant-producing cells. Subsequently, the effects of insulin on the expression of surfactant-associated proteins were examined in patients with lung adenocarcinoma during lung resection. Our results demonstrated the inhibitory effects of insulin on the transcription of the SFTPB, SFTPC and SFTPD genes in H441 cells and the SFTPB gene in A549 cells. Treatment with insulin significantly decreased the protein expression of SFTPA1 and SFTPA2 in the H441 cells and that of proSFTPB in the A549 cells. Dexamethasone promoted the transcription of the SFTPB, SFTPC and SFTPD genes in the A549 and H441 cells and reduced the transcription of the SFTPA1 and SFTPA2 genes in the H441 cells (SFTPA mRNA expression was not detected in A549 cells). Furthermore, we demonstrated that the mRNA levels of the selected genes were significantly lower in the cell lines compared to the lung tissue. A549 and H441 cells represent similar cell types. Yet, in our experiments, these cells reacted differently to insulin and/or dexamethasone treatment, and the mRNA levels of their main protein products, surfactant-associated proteins,were significantly lower than those in real tissue. Therefore, the results obtained in this study challenge the suitability of A549 and H441 cells as models of type II pneumocytes and Clara cells, respectively. However, we successfully demonstrate the possibility of studying the effects of insulin on pulmonary surfactant-associated genes and proteins in patients with lung adenocarcinoma.
Návaznosti
GBP302/12/G157, projekt VaV |
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MSM0021622430, záměr |
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