Evidence map›Paper›PMID 27128926›Full record

ArticleMarine drugs2016

Cytotoxic Compounds from the Saudi Red Sea Sponge Xestospongia testudinaria.

Ali A El-Gamal, Shaza M Al-Massarani, Lamiaa A Shaala, Abdulrahman M Alahdald, Mansour S Al-Said, Abdelkader E Ashour, Ashok Kumar, Maged S Abdel-Kader, Wael M Abdel-Mageed, Diaa T A Youssef

Abstract read
In one paragraph

Article in Marine drugs, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

11 citing papers in PubMed.

  1. Cardioprotective and Antioxidant Effects of Marine-DerivedPharmaceuticals (Basel, Switzerland) · 2026
    Article
  2. Article
  3. Article
  4. Article
  5. Naturally Occurring Organohalogen Compounds-A Comprehensive Review.Progress in the chemistry of organic natural products · 2023
    Review
  6. Neuroprotective Effect of Red Sea Marine SpongePharmaceuticals (Basel, Switzerland) · 2022
    Article
  7. Article
  8. Article
  9. Sterols and Triterpenes fromPlants (Basel, Switzerland) · 2021
    Article
  10. Article
  11. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors.

Ali A El-GamalDepartment of Pharmacognosy, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia. aelgamal00@yahoo.com.
Shaza M Al-MassaraniDepartment of Pharmacognosy, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia. aelgamel@ksu.edu.sa.
Lamiaa A ShaalaNatural Products Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah 21589, Saudi Arabia. lshalla@kau.edu.sa.
Abdulrahman M AlahdaldDepartment of Clinical Pharmacy, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia. amalahdal@kau.edu.sa.
Mansour S Al-SaidDepartment of Pharmacognosy, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia. salmassarani@ksu.edu.sa.
Abdelkader E AshourDepartment of Pharmacology and Toxicology, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia. aeashour@yahoo.com.
Ashok KumarVitiligo Research Chair, College of Medicine, King Saud University, Riyadh 11451, Saudi Arabia. aknirankari@gmail.com.
Maged S Abdel-KaderDepartment of Pharmacognosy, College of Pharmacy, Sattam Bin Abdulaziz University, Al-kharj 11942, Saudi Arabia. mpharm101@hotmail.com.
Wael M Abdel-MageedDepartment of Pharmacognosy, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia. msalsaid@ksu.edu.sa.
Diaa T A YoussefDepartment of Natural Products, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia. dyoussef@kau.edu.sa.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Bioassay-guided fractionation of the organic extract of the Red Sea sponge Xestospongia testudinaria led to the isolation of 13 compounds including two new sterol esters, xestosterol palmitate (2) and xestosterol ester of l6'-bromo-(7'E,11'E,l5'E)-hexadeca-7',11',l5'-triene-5',13'-diynoic acid (4), together with eleven known compounds: xestosterol (1), xestosterol ester of 18'-bromooctadeca-7'E,9'E-diene-7',15'-diynoic acid (3), and the brominated acetylenic fatty acid derivatives, (5E,11E,15E,19E)-20-bromoeicosa-5,11,15,19-tetraene-9,17-diynoic acid (5), 18,18-dibromo-(9E)-octadeca-9,17-diene-5,7-diynoic acid (6), 18-bromooctadeca-(9E,17E)-diene-7,15-diynoic acid (7), 18-bromooctadeca-(9E,13E,17E)-triene-7,15-diynoic acid (8), l6-bromo (7E,11E,l5E)hexadeca-7,11,l5-triene-5,13-diynoic acid (9), 2-methylmaleimide-5-oxime (10), maleimide-5-oxime (11), tetillapyrone (12), and nortetillapyrone (13). The chemical structures of the isolated compounds were accomplished using one- and two-dimensional NMR, infrared and high-resolution electron impact mass spectroscopy (1D, 2D NMR, IR and HREIMS), and by comparison with the data of the known compounds. The total alcoholic and n-hexane extracts showed remarkable cytotoxic activity against human cervical cancer (HeLa), human hepatocellular carcinoma (HepG-2), and human medulloblastoma (Daoy) cancer cell lines. Interestingly, the dibrominated C18-acetylenic fatty acid (6) exhibited the most potent growth inhibitory activity against these cancer cell lines followed by Compounds 7 and 9. Apparently, the dibromination of the terminal olefinic moiety has an enhanced effect on the cytotoxic activity.

Indexed as

AnimalsBiological ProductsCell Line, TumorHeLa CellsHep G2 CellsHumansIndian OceanMagnetic Resonance SpectroscopyPoriferaPyronesSaudi ArabiaSteroidsXestospongiaBiological ProductsnortetillapyronePyronesSteroidstetillapyronebrominated acetylenic fatty acidscancer cell linescytotoxic activityRed Sea spongeXestospongia testudinariaxestosterol fatty acids esters

Identifiers

PMID27128926
PMCPMC4882556

What OpenQuestion holds

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LicenceCC BY
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.