TY - JOUR
T1 - Testing the variability of PSA expression by different human prostate cancer cell lines by means of a new potentiometric device employing molecularly antibody assembled on graphene surface
AU - Rebelo, Tânia S C R
AU - Noronha, João P.
AU - Galésio, Marco
AU - Santos, Hugo
AU - Diniz, Mário
AU - Sales, M. Goreti F
AU - Fernandes, Maria H.
AU - Costa-Rodrigues, João
N1 - Sem PDF.
FCT, Foundation for Science and Technology (SFRH/BD/79221/2011)
PY - 2016/2/1
Y1 - 2016/2/1
N2 - Prostate Specific Antigen (PSA) is widely used as a biomarker for prostate cancer. Recently, an electrochemical biosensor for PSA detection by means of molecularly imprinted polymers (MIPs) was developed. This work evaluated the performance and the effectiveness of that PSA biosensor in screening the biomarker PSA in biological media with complex composition, collected from different human prostate cell line cultures. For that, the prostate cancer LNCaP and PC3 cells, and the non-cancerous prostate cell line PNT2 were cultured for 2, 7 and 14 days in either α-MEM or RPMI in the presence of 10% or 30% fetal bovine serum. Human gingival fibroblasts were used as a non-cancerous non-prostatic control. The different culture conditions modulated cellular proliferation and the expression of several prostate markers, including PSA. The electrochemical biosensor was able to specifically detect PSA in the culture media and values obtained were similar to those achieved by a commercial Enzyme-Linked Immunosorbent Assay (ELISA) kit, the most commonly used method for PSA quantification in prostate cancer diagnosis. Thus, the tested biosensor may represent a useful alternative as a diagnostic tool for PSA determination in biological samples.
AB - Prostate Specific Antigen (PSA) is widely used as a biomarker for prostate cancer. Recently, an electrochemical biosensor for PSA detection by means of molecularly imprinted polymers (MIPs) was developed. This work evaluated the performance and the effectiveness of that PSA biosensor in screening the biomarker PSA in biological media with complex composition, collected from different human prostate cell line cultures. For that, the prostate cancer LNCaP and PC3 cells, and the non-cancerous prostate cell line PNT2 were cultured for 2, 7 and 14 days in either α-MEM or RPMI in the presence of 10% or 30% fetal bovine serum. Human gingival fibroblasts were used as a non-cancerous non-prostatic control. The different culture conditions modulated cellular proliferation and the expression of several prostate markers, including PSA. The electrochemical biosensor was able to specifically detect PSA in the culture media and values obtained were similar to those achieved by a commercial Enzyme-Linked Immunosorbent Assay (ELISA) kit, the most commonly used method for PSA quantification in prostate cancer diagnosis. Thus, the tested biosensor may represent a useful alternative as a diagnostic tool for PSA determination in biological samples.
KW - Electrochemical biosensor
KW - Prostate cell lines
KW - Prostate Specific Antigen
UR - http://www.scopus.com/inward/record.url?scp=84947721361&partnerID=8YFLogxK
U2 - 10.1016/j.msec.2015.11.032
DO - 10.1016/j.msec.2015.11.032
M3 - Article
C2 - 26652466
AN - SCOPUS:84947721361
SN - 0928-4931
VL - 59
SP - 1069
EP - 1078
JO - Materials Science & Engineering C-Materials For Biological Applications
JF - Materials Science & Engineering C-Materials For Biological Applications
ER -
