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Table 2 Drug sensitivity of ETCC001 and sub-lines

From: Characterization of ductal carcinoma in situ cell lines established from breast tumor of a Singapore Chinese patient

  

IC50(μM)

Anti-neoplastic Class

 

ETCC001

ETCC006

ETCC007

ETCC008

ETCC010

ETC011

MCF7

ER antagonist

Tamoxifen

6.3

34.2

32.8

32.4

30.0

33.5

26.6

Monoclonal Ab

Herceptin

>10

>10

>10

>10

>10

>10

Not Done

Anti-microtubular

Paclitaxel

>100

>100

>100

>100

>100

>100

>100

Anti-metabolite

5-fluorouracil

>100

>100

>100

>100

>100

>100

>100

Anti-matabolite

Gemcitabine

>100

>100

>100

>100

>100

>100

>100

Alkylating

Cisplatin

>100

>100

>100

>100

>100

>100

>100

Anthracycline

Docorubicin

9.3

3.2

>100

77.8

5.0

20.8

12.3

Topo I inhibitor

Camptothecin

>100

>100

>100

>100

>100

>100

4.5

  1. ER: estrogen receptor; Ab: antibody; Topo: topoisomerase
  2. Cells were treated with common chemotherapeutic agents and viability of the cells was determined by measuring cellular ATP levels after 48 hours. Concentration of drug (in μM) which inhibits 50% cell viability (IC50) is shown. The experiments were carried out in triplicates and repeated on different passages of the cells. The result shown is representative of a single experiment.