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Table 2 Detection of H2AX phosphorylation via flow cytometry

From: Photodynamic therapy combined to cisplatin potentiates cell death responses of cervical cancer cells

 

Average fluorescence intensity

Treatments

C-33 A

SiHa

HaCaT

No treatment

1256

1405

1545

Secondary antibody

1197

1465

1391

CisPT

1503

1575

1526

LED660

1318

1533

1591

MB

1211

1401

2069

MBPDT

2471**

2531**

2842*

MBPDT + CisPT

3362**

3115**

10547***

LED630

1376

1489

1669

PG

1452

1414

1677

PGPDT

1386

1428

1695

CisPT + PGPDT

1444

1534

10547

  1. Cell lines C-33 A, HaCaT and SiHa were submmited to flow cytometry using anti-γH2AX monoclonal antibody after treatments (CisPT [41.6 μM for 6 h]; MB [19.5 μM for 20 min]; LED 660 nm [5.11 J/cm2]; PG [0.5 μM for 2 h]; LED 630 nm [2.76 J/cm2]; MBPDT [19.5 μM MB + 5.11 J/cm2 LED 660 nm]; MBPDT + CisPT [19.5 μM MB + 5.11 J/cm2 LED 660 nm + 1.3 μM CisPT for 6 h]; PGPDT [0.5 μM PG + 2.76 J/cm2 LED 630 nm]; CisPT + PGPDT [1.3 μM CisPT for 6 h + 0.5 μM PG + 2.76 J/cm2 LED 630 nm]). Asterisks indicate the statistical difference relative to non-treated samples. Kruskal-Wallis, with Dunn’s post-hoc (ns: non significative; *p < 0,05; **p < 0,01; ***p < 0,001). CisPT: cisplatin; MB: methylene blue; MBPDT: photodynamic therapy mediated by MB; PG: Photogem; PGPDT: photodynamic therapy mediated by PG