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Other Algae01:19

Other Algae

The group Stramenopiles include some phototrophic microorganisms. Members of this group possess flagella covered in numerous short, hairlike extensions, a feature that inspired the group's name, derived from the Latin words for "straw" and "hair." Some of the main categories of Stramenopiles include diatoms, golden algae, and brown algae.Diatoms are unicellular, photosynthetic eukaryotes, with over 200 known genera. They play a key role in the planktonic communities of both marine and...
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New alkaloids from Pancratium maritimum.

Sabrin R M Ibrahim1, Gamal A Mohamed, Lamiaa A Shaala

  • 1Department of Pharmacognosy, Faculty of Pharmacy, Assiut University, Assiut, Egypt.

Planta Medica
|August 24, 2013
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Researchers investigated the plant Pancratium maritimum for anticancer compounds. Two isolated alkaloids demonstrated significant antiproliferative and antimigratory effects on prostate cancer cells without toxicity, highlighting potential therapeutic applications.

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Area of Science:

  • Natural Product Chemistry
  • Pharmacology
  • Oncology

Background:

  • Ongoing search for novel anticancer agents from natural sources.
  • Investigation of the amaryllidaceous plant Pancratium maritimum for bioactive compounds.

Purpose of the Study:

  • To isolate and characterize alkaloids from Pancratium maritimum.
  • To evaluate the antiproliferative and antimigratory potential of isolated compounds against prostate cancer cells.

Main Methods:

  • Fractionation of fresh flower and bulb extracts of P. maritimum.
  • Structure elucidation using 1D and 2D NMR and high-resolution mass spectrometry.
  • In vitro antiproliferative and antimigratory assays using human prostate cancer cell line PC-3.

Main Results:

  • Isolation of four new alkaloids (pancrimatines A, B, C, and norismine) and three known alkaloids.
  • Compounds 2 (pancrimatine B) and 7 (N-methyl-8,9-methylenedioxyphenanthridine) exhibited significant antiproliferative and antimigratory activity against PC-3 cells.
  • No cytotoxicity was observed for compounds 2 and 7 at effective concentrations.

Conclusions:

  • The phenanthridine alkaloid class shows promise for controlling prostate cancer proliferation and migration.
  • Pancratium maritimum is a valuable source of potential anticancer lead entities.
  • Further research into phenanthridine alkaloids could lead to new prostate cancer therapies.