Preliminary studies: the potential anti-angiogenic activities of two Sulawesi Island (Indonesia) propolis and their chemical characterization

Muhammad Iqbal, Tai-ping Fan, David Watson, Samya Alenezi, Khaled Saleh, Muhamad Sahlan

Research output: Contribution to journalArticle

Abstract

Several studies have previously reported propolis, or its constituents, to inhibit tumour angiogenesis. The anti-angiogenic activity of two Indonesian stingless bee propolis extracts from Sulawesi Island on vascular cells were assessed. Sample D01 was obtained from the outer side of bee hives, while D02 was from the inner side of the same hives. The extracts were profiled by using liquid chromatography coupled to high resolution mass spectrometry. The anti-angiogenic capacity was assessed on HUVECs and placenta-derived pericytes by cell viability, multi-channel wound healing, and CoCl2 based-hypoxia assays. The exact chemical composition has not been confirmed. The most abundant compounds in Indonesian sample D01 seem to be unusual since they do not immediately fall into a clear class. Two of the most abundant compounds have elemental compositions matching actinopyrones. Identification on the basis of elemental composition is not definitive but compounds in D01 are possibly due to unusually modified terpenoids. Sample D02 has abundant compounds which include four related diterpenes with differing degrees of oxygenation and some sesquiterpenes. However, again the profile is unusual. The anti-angiogenic assays demonstrated that D01 elicited a strong cytotoxic effect and a considerable anti-migratory activity on the vascular cells. Although D02 demonstrated a much weaker cytotoxic effect on the cell lines compared to D01, it elicited a substantial protective effect on the pericytes against CoCl2-induced dropout in an experiment to mimic a micro-environment commonly associated with angiogenesis and tumour growth. These results demonstrate modulatory effects of these propolis samples in vascular cells, which requires further investigation.

LanguageEnglish
Article numbere01978
Number of pages12
JournalHeliyon
Volume5
Issue number7
Early online date19 Jul 2019
DOIs
Publication statusPublished - 31 Jul 2019

Fingerprint

Propolis
Indonesia
Islands
Blood Vessels
Pericytes
Bees
Urticaria
Sesquiterpenes
Diterpenes
Terpenes
Liquid Chromatography
Wound Healing
Placenta
Mass Spectrometry
Neoplasms
Cell Survival
Cell Line
Growth

Keywords

  • analytical chemistry
  • anti-angiogenesis
  • cancer research
  • cell biology
  • HUVECs
  • Indonesian propolis
  • LC-MS
  • natural product chemistry
  • organic chemistry
  • Pericyte dropout
  • pharmaceutical chemistry
  • pharmaceutical science
  • physiology

Cite this

Iqbal, Muhammad ; Fan, Tai-ping ; Watson, David ; Alenezi, Samya ; Saleh, Khaled ; Sahlan, Muhamad. / Preliminary studies : the potential anti-angiogenic activities of two Sulawesi Island (Indonesia) propolis and their chemical characterization. In: Heliyon. 2019 ; Vol. 5, No. 7.
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Preliminary studies : the potential anti-angiogenic activities of two Sulawesi Island (Indonesia) propolis and their chemical characterization. / Iqbal, Muhammad; Fan, Tai-ping; Watson, David; Alenezi, Samya; Saleh, Khaled; Sahlan, Muhamad.

In: Heliyon, Vol. 5, No. 7, e01978, 31.07.2019.

Research output: Contribution to journalArticle

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