The Physiological Role(s) of Secondary (Natural) Products

Author(s):  
E.A. BELL
RSC Advances ◽  
2020 ◽  
Vol 10 (57) ◽  
pp. 34959-34976
Author(s):  
Enas Reda Abdelaleem ◽  
Mamdouh Nabil Samy ◽  
Samar Yehia Desoukey ◽  
Miaomiao Liu ◽  
Ronald J. Quinn ◽  
...  

Marine organisms have been considered an interesting target for the discovery of different classes of secondary natural products with wide-ranging biological activities.


ChemInform ◽  
2010 ◽  
Vol 30 (38) ◽  
pp. no-no
Author(s):  
Hideaki Oikawa ◽  
Yuichi Suzuki ◽  
Kinya Katayama ◽  
Akira Naya ◽  
Chiaki Sakano ◽  
...  

2020 ◽  
Vol 20 (15) ◽  
pp. 1756-1767
Author(s):  
Jana Wiemann ◽  
Ahmed Al-Harrasi ◽  
René Csuk

Background and Methods: Chemotherapy remains one of the most important methods for the treatment of cancer. More recently in this context, some products derived from natural products have raised scientific interest which especially include many terpenes. Thereby, diterpenoids represent a special class, and within this class of important secondary natural products, especially compounds derived from Dehydroabietylamine (DA), are of particular interest. Results: This review not only gives a summary of the most important findings on the cytotoxic behavior of DAderived compounds but also shows some drawbacks of these compounds, such low bioavailability and/or poor solubility of several derivatives of DA. It focusses on the chemical aspects and summarizes the DA related biological effects without deep discussion of underlying biochemical pathways. Conclusion: Dehydroabietylamine-derived cytotoxic compounds hold a high potential to be developed into efficient antitumor active drugs.


Author(s):  
W.F. Marshall ◽  
A.F. Dernburg ◽  
B. Harmon ◽  
J.W. Sedat

Interactions between chromatin and nuclear envelope (NE) have been implicated in chromatin condensation, gene regulation, nuclear reassembly, and organization of chromosomes within the nucleus. To further investigate the physiological role played by such interactions, it will be necessary to determine which loci specifically interact with the nuclear envelope. This will not only facilitate identification of the molecular determinants of this interaction, but will also allow manipulation of the pattern of chromatin-NE interactions to probe possible functions. We have developed a microscopic approach to detect and map chromatin-NE interactions inside intact cells.Fluorescence in situ hybridization (FISH) is used to localize specific chromosomal regions within the nucleus of Drosophila embryos and anti-lamin immunofluorescence is used to detect the nuclear envelope. Widefield deconvolution microscopy is then used to obtain a three-dimensional image of the sample (Fig. 1). The nuclear surface is represented by a surface-harmonic expansion (Fig 2). A statistical test for association of the FISH spot with the surface is then performed.


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