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LIFE01200604005 Shri Somnath Ghosh - Homi Bhabha National ...

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SYNOPSIS<br />

Percentage Survival<br />

100<br />

80<br />

60<br />

40<br />

20<br />

0<br />

MCF7<br />

INT407<br />

A549<br />

0Gy 2Gy 5X2Gy 10Gy<br />

Radiation Dose<br />

Fig. 3.1A. Relative radioresistance of three cell line viz. MCF-7, INT 407 and A 549<br />

Data represents means ± SE of three independent experiments. Lane 1, control<br />

unirradiated A549 cell line. Key; Lane 2, 2 Gy acute dose ( single dose that was<br />

delivered in each fraction ) of 60 Co γ-irradiation Lane 3 2 Gy of 60 Co γ-irradiation daily<br />

over a period of 5 days, Lane 4, 10 Gy acute (which is the sum total of all the fraction )<br />

60 Co γ-irradiation.<br />

Ratio of ATM to Actin<br />

5.0<br />

4.5<br />

4.0<br />

3.5<br />

3.0<br />

2.5<br />

2.0<br />

1.5<br />

1.0<br />

0.5<br />

0.0<br />

Con 2 Gy 5X2 Gy 10 Gy<br />

Treatment<br />

MCF<br />

INT407<br />

A549<br />

Fig. 3.1B. Gene expression of ATM in MCF-7, INT 407 and A 549 cells. Key;<br />

Lane 1, control unirradiated A549 cell line. Lane 2, 2 Gy acute dose ( single dose that<br />

was delivered in each fraction ) of 60 Co γ-irradiation Lane 3 2 Gy of 60 Co γ-irradiation<br />

daily over a period of 5 days, Lane 4, 10 Gy acute (which is the sum total of all the<br />

fraction ) 60 Co γ-irradiation.<br />

9

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