Počet záznamů: 1
MALDI MSI of MeLiM melanoma: Searching for differences in protein profiles
- 1.
SYSNO ASEP 0483864 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název MALDI MSI of MeLiM melanoma: Searching for differences in protein profiles Tvůrce(i) Guran, R. (CZ)
Vaníčková, L. (CZ)
Horák, Vratislav (UZFG-Y) RID, ORCID
Křížková, S. (CZ)
Michálek, P. (CZ)
Heger, Z. (CZ)
Zítka, O. (CZ)
Adam, V. (CZ)Číslo článku e0189305 Zdroj.dok. PLoS ONE. - : Public Library of Science - ISSN 1932-6203
Roč. 12, č. 12 (2017)Poč.str. 15 s. Forma vydání Online - E Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova MeLiM melanoma ; MALDI MSI Vědní obor RIV EB - Genetika a molekulární biologie Obor OECD Biochemical research methods CEP LO1609 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy LQ1601 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Institucionální podpora UZFG-Y - RVO:67985904 UT WOS 000417469900046 EID SCOPUS 85037647031 DOI 10.1371/journal.pone.0189305 Anotace Background Treatment of advanced cutaneous melanoma remains challenging, and new data on melanoma biology are required. The most widely accepted criteria for the prognostic evaluation of melanoma are histopathological and clinical parameters, and the identification of additional tumor markers is thus of paramount importance. Matrix-assisted laser desorption/ionization mass spectrometry imaging (MALDI MSI), an important tool in cancer research, is useful for unraveling the molecular profile of melanoma.
Methodology/Principal findings In this report, we used the melanoma-bearing Libechov minipig (MeLiM), a unique animal model that allows observation of the complete spontaneous regression of invasive cutaneous melanoma, to investigate i) the differences between melanoma and healthy skin protein profiles and ii) the proteins potentially involved in spontaneous regression. The MeLiM tissues were cryosected, histologically characterized, analyzed by MALDI MSI, and immunohistologically stained. Multivariate statistical analyses of the MALDI MSI data revealed ten relevant m/z ions, of which the expression levels varied significantly among the studied MeLiM tissues. These ion peaks were used to create mass ion images/maps and visualize the differences between tumor and healthy skin specimens, as well as among histologically characterized tissue regions.
Conclusions/Significance Protein profiles comprising ten statistically significant mass ion peaks useful for differentiating cutaneous melanoma and healthy skin tissues were determined. Peaks at m/z 3044, 6011, 6140 and 10180 were overexpressed in melanoma compared with healthy skin tissue. More specifically, m/z 6140 was expressed at significantly (p < 0.05) higher levels in normally growing melanoma regions than in regions with early and late spontaneous regression. This study demonstrates the clinical utility of MALDI MSI for the analysis of tissue cryosections at a molecular level.Pracoviště Ústav živočišné fyziologie a genetiky Kontakt Jana Zásmětová, knihovna@iapg.cas.cz, Tel.: 315 639 554 Rok sběru 2018
Počet záznamů: 1