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Dr. Ashok Kumar

Assistant Professor

Assistant Professor in Vitiligo Research Chair

كلية الطب
مبنى كلية الطب- الدور الثالث
publication
Journal Article
2015

In Vitro Cytotoxicity Evaluation of a New Series of Benzo[g] [1,2,4]triazolo[1,5-α]Quinazolines.

, Al-Salahi RASHAD, Ashour ABDELKADER, Marzouk MOHAMED, Kumar ASHOK . 2015

A series of twenty four benzo[g]triazoloquinazolines was prepared and fully characterized in our previous paper. Here, the cytotoxicity of these compounds was evaluated in vitro against three tumor cell lines, i.e. hepatocellular carcinoma (Hep-G2), human cervical cancer (Hela) and medulloblastoma (Daoy). MTT assay was employed to elucidate the cytotoxicity of the target molecules and dasatinib used as reference drug. It has been shown that compound 21 exhibited remarkable significant cytotoxicity against all tested cell lines with IC50 values ranged between 20.91 and 27.81 μg/mL in relation to dasatinib (6.91-16.22 μg/mL). Whereas compound 16 showed the highest activity against Hela and Hep-G2 with IC50 values of 4.57 and 7.37 μg/mL, respectively, however compound 22 revealed significant cytotoxicity, showing IC50 values of 26.78 and 10.90 μg/mL. Moreover, compound 15 was found to possess good activity against Daoy cell with IC50 value of 23.02 μg/mL in regards to that of dasatinib (9.20 μg/mL). In terms of selectivity, compound 15 was active against Daoy cell, while 17 and 20 against Hep-G2. Furthering study on structure modification of these compounds could be useful as templates to design more potent antitumor agents.

Publication Work Type
Original research article
Volume Number
34
Issue Number
10
Magazine \ Newspaper
Latin American Journal of Pharmacy
Pages
1926-30
more of publication
publications

CONTEXT:

Premna resinosa (Hochst.) Schauer (Lamiaceae) is used in many places to treat bronchitis, respiratory illness and convulsions of the rib cage.

OBJECTIVE:

This study…

by Dina A. Albadawi, Ramzi A. Mothana, Jamal M. Khaled, Abdelkhader E. Ashour, Ashok Kumar, Sheikh F. Ahmad, Mansour S. Al-Said, Adnan J. Al-Rehaily and Nawal M. Almusayeib
2017
publications

BACKGROUND::

Varicose veins and the complications of venous disease are common disorders in humans.

OBJECTIVE::

To study the effects of bleomycin as a potential new sclerosing…

by Alghamdi KM, Kumar A, Rikabi A, Abdullah Hasan AlOmrani, Ashour A, Shaik Shaffi Ahamed
2017
publications

Novel sulfonamides 3-19 with a biologically active 3,4-dimethoxyphenyl moiety were designed and synthesized. The structures of the synthesized compounds were established using elemental analyses,…

by Mostafa Ghorab, Mansour Alsaid, Yassin Nissan, Abdelkader Ashour, Abdullah Al-Mishari, Ashok Kumar, Sheikh Ahmad
2016