Evaluation of the Antiproliferative, Anti-angiogenic, and Antioxidant Activity of a Newly Synthesized Indole Derivative

Authors

  • Raghad Shakir Hadid College of Pharmacy, Mustansiriyah University, Baghdad, Iraq
  • Ghaith Ali Jassim Al Zubaidy College of Health and Medical Techniques, Al-Bayan University, Baghdad, Iraq
  • Basma Talib Al-Sudani College of Pharmacy, Mustansiriyah University, Baghdad, Iraq
  • Asmaa Q. Ibrahim Faculty of Allied Medical Sciences/ Al-Ahliyya Amman University, Amman, Jordan

DOI:

https://doi.org/10.32947/ajps.v26i3.1428

Keywords:

Indole derivative, antiproliferative, anti-angiogenic, antioxidant activity

Abstract

Background:  Angiogenesis is a physiological process whereby preexisting blood vessels divide to generate new ones. Abnormal angiogenesis is the major cause of various diseases.

Objective: In this work, a newly synthesized indole derivative, 2-(5-bromo-1H-indole-2-carbonyl)-N-(p-tolyl) hydrazine-1-carbothioamide (BIHC), was evaluated for antiproliferative and antiangiogenic activities using experimental models of neovascularization, while its antioxidant activity was assessed using the 1,1-diphenyl-2-picrylhydrazyl (DPPH) free radical-scavenging assay. Methods: The antiproliferative effect on the human umbilical vein endothelial cell line (HUVECs) and MCF-7 cell line was assessed using the [3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide] MTT assay. An ex vivo rat aorta ring assay and an in vivo chorioallantoic membrane experimental model were used to investigate its antiangiogenic activity; these assays were also used to assess the dose-response effects of the tested compounds by preparing serial concentrations. Antioxidant activity was analyzed using the DPPH free radical scavenging assay.

Results: The compound inhibits the proliferation of HUVECs with an IC50 of 80.24 μg/mL and MCF-7 with an IC50 of 96.32 μg/mL. The tested compound at serial concentrations showed significant dose-dependent inhibitory activity (P < 0.0001) in the rat aorta ring (RAR) assay, with an IC50 of 30.47 μg/mL. The study proceeded by applying the chorioallantoic membrane (CAM) assay, in which serial dilutions of the derivative were added and tested separately. Furthermore, the tested compounds exhibited significant antioxidant activity in the DPPH radical scavenging assay (P < 0.0001), with an IC50 of 5.48 μg/mL.

Conclusion: The findings suggest that the new indole derivative has an antiproliferative effect and significant anti-angiogenic and antioxidant properties.

References

1. Nitzsche B, Rong WW, Goede A, Hoffmann B, Scarpa F, Kuebler WM, et al. Coalescent angiogenesis—evidence for a novel concept of vascular network maturation. Angiogenesis. 2022 Feb 1;25(1):35–45. doi:10.1007/s10456-021-09824-3. PubMed PMID: 34905124.

2. Laschke MW, Gu Y, Menger MD. Replacement in angiogenesis research: Studying mechanisms of blood vessel development by animal-free in vitro, in vivo and in silico approaches. Front Physiol. Frontiers Media S.A. 2022;13. doi:10.3389/fphys.2022.981161

3. Pathak A, Pal AK, Roy S, Nandave M, Jain K. Role of Angiogenesis and Its Biomarkers in Development of Targeted Tumor Therapies. Stem Cells Int. Hindawi Limited. 2024;2024. doi:10.1155/2024/9077926

4. Monaci S, Coppola F, Filippi I, Falsini A, Carraro F, Naldini A. Targeting hypoxia signaling pathways in angiogenesis. Front Physiol. Frontiers Media SA. 2024;15. doi:10.3389/fphys.2024.1408750

5. Cook KM, Figg WD. Angiogenesis Inhibitors: Current Strategies and Future Prospects. CA Cancer J Clin. 2010;60(4):222-243. doi:10.3322/caac.20075

6. Sobczyńska-Rak A, Żylińska B, Nowicka B, Rak E, Rzepka T. Role and Mechanisms of Angiogenesis in Tumours. Biology (Basel). Multidisciplinary Digital Publishing Institute (MDPI). 2025;14(7). doi:10.3390/biology14070756

7. Wang L, Liu WQ, Broussy S, Han B, Fang H. Recent advances of anti-angiogenic inhibitors targeting VEGF/VEGFR axis. Front Pharmacol. Frontiers Media SA. 2023;14. doi:10.3389/fphar.2023.1307860

8. Chander G, Golhani V, Sheikh AA, et al. Role of Angiogenesis in Oncology: A Deep Insight into the Mechanistic Aspect. Letters in Applied NanoBioScience. AMG Transcend Association. 2024;13(4). doi:10.33263/LIANBS134.161

9. Yoo SY, Kwon SM. Angiogenesis and its therapeutic opportunities. Mediators Inflamm. 2013;2013. doi:10.1155/2013/127170

10. Dhuguru J, Skouta R. Role of indole scaffolds as pharmacophores in the development of anti-lung cancer agents. Molecules. MDPI AG. 2020;25(7). doi:10.3390/molecules25071615

11. Hassan OM, Kubba A, Tahtamouni LH. Novel 5-bromoindole-2-carboxylic Acid Derivatives as EGFR Inhibitors: Synthesis, Docking Study, and Structure Activity Relationship. Anticancer Agents Med Chem. 2023;23(11):1336-1348. doi:10.2174/1871520623666230227153449

12. Ibrahim AQ, Abdullah MS, Ahram M, Abdalla S. A Modified Protocol for the Isolation, Culture, and Characterization of Human Smooth Muscle Cells from the Umbilical Cord. Methods Protoc. 2023;6(3). doi:10.3390/mps6030054

13. Kumar A, Rai Y, Bhatt AN. Anti-cancer drug-mediated increase in mitochondrial mass limits the application of metabolic viability-based MTT assay in cytotoxicity screening. Cytotechnology. 2024;76(3):301-311. doi:10.1007/s10616-024-00618-1

14. Choi J, Lee DH, Park SY, Seol JW. Diosmetin inhibits tumor development and block tumor angiogenesis in skin cancer. Biomedicine and Pharmacotherapy. 2019;117. doi: 10.1016/j.biopha.2019.109091

15. Ghasemi M, Turnbull T, Sebastian S, Kempson I. The mtt assay: Utility, limitations, pitfalls, and interpretation in bulk and single-cell analysis. Int J Mol Sci. 2021;22(23). doi:10.3390/ijms222312827

16. Nicosia RF, Lin YJ, Hazelton D, Qian X. Endogenous Regulation of Angiogenesis in the Rat Aorta Model Role of Vascular Endothelial Growth Factor. Vol 151. 1997. doi:10.1016/S0002-9440(10)65725-5.

17. Khamees AH, Abdulhussein AJ, Sahib HB, Fawzi HA. Anti-angiogenic and antioxidant activity of iraqi cyperus rotundus ethanol extract. International Journal of Pharmacology. 2018;14(4):546-552. doi:10.3923/ijp.2018.546.552

18. Marchesan M, Paper DH, Hose S, Franz G. Investigation of the Antiinflammatory Activity of Liquid Extracts of Plantago Lanceolata L. Vol 12. 1998;12(S1):S33-S3 4. doi:10.1002/(SICI)1099-1573(1998)12:1+S33: AID-PTR2453.0. CO;2-9

19. Kennedy DC, Coen B, Wheatley AM, McCullagh KJA. Microvascular experimentation in the chick chorioallantoic membrane as a model for screening angiogenic agents including from gene-modified cells. Int J Mol Sci. MDPI. 2022;23(1). doi:10.3390/ijms23010452

20. Oktay M, Gülçin I, Küfrevioǧlu ÖI. Determination of in vitro antioxidant activity of fennel (Foeniculum vulgare) seed extracts. LWT. 2003;36(2):263-271. doi:10.1016/S0023-6438(02)00226-8

21. Sharma OP, Bhat TK. DPPH antioxidant assay revisited. Food Chem. 2009;113(4):1202-1205. doi: 10.1016/j.foodchem.2008.08.008

22. Poonia P, Niazi J, Chaudhary G, Kalia AN. In-Vitro antioxidant potential of Jasminum mesnyi Hance (Leaves) extracts.Res J Pharm Biol Chem Sci. 2011;2(4):840-848.

23. Ribatti D, Vacca A, Roncali L, Dammacco F. The Chick Embryo Chorioallantoic Membrane as a Model for in Vivo Research on Anti-Angiogenesis. Curr Pharm Biotechnol. 2000;1(1):73-82. doi:10.2174/1389201003379059

24. Kumar S, Ritika. A brief review of the biological potential of indole derivatives. Futur J Pharm Sci. 2020;6(1). doi:10.1186/s43094-020-00141-y

25. Aboshouk DR, Youssef MA, Bekheit MS, Hamed AR, Girgis AS. Antineoplastic indole-containing compounds with potential VEGFR inhibitory properties. RSC Adv. Royal Society of Chemistry. 2024;14(9):5690-5728. doi:10.1039/d3ra08962b

26. Mo X, Rao DP, Kaur K, et al. Indole Derivatives: A Versatile Scaffold in Modern Drug Discovery—An Updated Review on Their Multifaceted Therapeutic Applications (2020–2024). Molecules. Multidisciplinary Digital Publishing Institute (MDPI). 2024;29(19). doi:10.3390/molecules29194770

27. Wang L, Liu WQ, Broussy S, Han B, Fang H. Recent advances of anti-angiogenic inhibitors targeting VEGF/VEGFR axis. Front Pharmacol. Frontiers Media SA. 2023;14. doi:10.3389/fphar.2023.1307860

28. Marques CS, Brandão P, Burke AJ. Targeting Vascular Endothelial Growth Factor Receptor 2 (VEGFR-2): Latest Insights on Synthetic Strategies. Molecules. Multidisciplinary Digital Publishing Institute (MDPI). 2024;29(22). doi:10.3390/molecules29225341

29. Ezelarab HAA, Ali TFS, Abbas SH, Sayed AM, Beshr EAM, Hassan HA. New antiproliferative 3-substituted oxindoles inhibiting EGFR/VEGFR-2 and tubulin polymerization. Mol Divers. 2024;28(2):563-580. doi:10.1007/s11030-023-10603-z

30. Aboshouk DR, Youssef MA, Bekheit MS, Hamed AR, Girgis AS. Antineoplastic indole-containing compounds with potential VEGFR inhibitory properties. RSC Adv. Royal Society of Chemistry. 2024;14(9):5690-5728. doi:10.1039/d3ra08962b

31. Akbarian M, Bertassoni LE, Tayebi L. Biological aspects in controlling angiogenesis: current progress. Cellular and Molecular Life Sciences. Springer Science and Business Media Deutschland GmbH. 2022;79(7). doi:10.1007/s00018-022-04348-5

32. Faihs L, Firouz B, Slezak P, et al. A Novel Artificial Intelligence-Based Approach for Quantitative Assessment of Angiogenesis in the Ex Ovo CAM-Model. Cancers (Basel). 2022;14(17). doi:10.3390/cancers14174273

33. Zhou Z, Mao W, Li Y, Qi C, He Y. Myricetin Inhibits Breast Tumor Growth and Angiogenesis by Regulating VEGF/VEGFR2 and p38MAPK Signaling Pathways. Anatomical Record. 2019;302(12):2186-2192. doi:10.1002/ar.24222

34. Zhu P, Wu Y, Yang A, Fu X, Mao M, Liu Z. Catalpol suppressed proliferation, growth and invasion of CT26 colon cancer by inhibiting inflammation and tumor angiogenesis. Biomedicine and Pharmacotherapy. 2017;95:68-76. doi:10.1016/j.biopha.2017.08.049

35. Shirinzadeh H, Ince E, Westwell AD, Gurer-Orhan H, Suzen S. Novel indole-based melatonin analogues substituted with triazole, thiadiazole and carbothioamides: studies on their antioxidant, chemopreventive and cytotoxic activities. J Enzyme Inhib Med Chem. 2016;31(6):1312-1321. doi:10.3109/14756366.2015.1132209

36. da Silva Gomes ECB, Jimenez GC, da Silva LCN, et al. Evaluation of antioxidant and antiangiogenic properties of Caesalpinia echinata extracts. J Cancer. 2014;5(2):143-150. doi:10.7150/jca.7439

37. Gulcin İ. Antioxidants: a comprehensive review. Arch Toxicol. Springer Science and Business Media Deutschland GmbH. 2025;99(5):1893-1997. doi:10.1007/s00204-025-03997-2

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Published

2026-09-30

How to Cite

Evaluation of the Antiproliferative, Anti-angiogenic, and Antioxidant Activity of a Newly Synthesized Indole Derivative. (2026). Al Mustansiriyah Journal of Pharmaceutical Sciences, 26(3), 388-404. https://doi.org/10.32947/ajps.v26i3.1428

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