Cytotoxic triterpenoid saponins from Aesculus glabra Willd.

2012 ◽  
Vol 75 ◽  
pp. 67-77 ◽  
Author(s):  
Wei Yuan ◽  
Ping Wang ◽  
Guangrui Deng ◽  
Shiyou Li
Keyword(s):  
Triterpenoid Saponins ◽  
Aesculus Glabra

Five New Oleanane Triterpenoid Saponins from the Aerial Parts ofElsholtzia bodinieri

2016 ◽  
pp. n/a-n/a
Author(s):  
Jin-Dong Zhong ◽  
Xue-Wei Zhao ◽  
Hong-Mei Li ◽  
Ling-Huan Gao ◽  
Rong-Tao Li
Keyword(s):  
Triterpenoid Saponins ◽  
Aerial Parts ◽  
Oleanane Triterpenoid

Triterpenoid saponins from the cytotoxic root extract of Sideroxylon foetidissimum, an endemic Yucatecan medicinal plant

Planta Medica ◽  
2008 ◽  
Vol 74 (09) ◽  
Author(s):  
A Sánchez-Medina ◽  
PC Stevenson ◽  
S Habtemariam ◽  
LM Peña-Rodríguez ◽  
O Corcoran ◽  
...  
Keyword(s):  
Medicinal Plant ◽  
Root Extract ◽  
Triterpenoid Saponins

Synergistic interaction of triterpenoid saponins and plant protein toxins

Planta Medica ◽  
2012 ◽  
Vol 78 (11) ◽  
Author(s):  
A Weng ◽  
M Thakur ◽  
F Beceren-Braun ◽  
R Gilabert-Oriol ◽  
S Boettger ◽  
...  
Keyword(s):  
Synergistic Interaction ◽  
Plant Protein ◽  
Triterpenoid Saponins ◽  
Protein Toxins

scholarly journals A candidate gene identified in converting platycoside E to platycodin D from Platycodon grandiflorus by transcriptome and main metabolites analysis

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Xinglong Su ◽  
Yingying Liu ◽  
Lu Han ◽  
Zhaojian Wang ◽  
Mengyang Cao ◽  
...  
Keyword(s):  
Candidate Gene ◽  
Orthogonal Experiment ◽  
Triterpenoid Saponin ◽  
Gene Encoding ◽  
Triterpenoid Saponins ◽  
Platycodin D ◽  
Polysaccharide Content ◽  
Saponin Biosynthesis ◽  
Polysaccharide Synthesis ◽  
Experimental Use

AbstractPlatycodin D and platycoside E are two triterpenoid saponins in Platycodon grandiflorus, differing only by two glycosyl groups structurally. Studies have shown β-Glucosidase from bacteria can convert platycoside E to platycodin D, indicating the potential existence of similar enzymes in P. grandiflorus. An L9(34) orthogonal experiment was performed to establish a protocol for calli induction as follows: the optimal explant is stems with nodes and the optimum medium formula is MS + NAA 1.0 mg/L + 6-BA 0.5 mg/L to obtain callus for experimental use. The platycodin D, platycoside E and total polysaccharides content between callus and plant organs varied wildly. Platycodin D and total polysaccharide content of calli was found higher than that of leaves. While, platycoside E and total polysaccharide content of calli was found lower than that of leaves. Associating platycodin D and platycoside E content with the expression level of genes involved in triterpenoid saponin biosynthesis between calli and leaves, three contigs were screened as putative sequences of β-Glucosidase gene converting platycoside E to platycodin D. Besides, we inferred that some transcription factors can regulate the expression of key enzymes involved in triterpernoid saponins and polysaccharides biosynthesis pathway of P. grandiflorus. Totally, a candidate gene encoding enzyme involved in converting platycoside E to platycodin D, and putative genes involved in polysaccharide synthesis in P. grandiflorus had been identified. This study will help uncover the molecular mechanism of triterpenoid saponins biosynthesis in P. grandiflorus.

scholarly journals Five novel triterpenoid saponins from Hovenia dulcis and their Nrf2 inhibitory activities

2021 ◽  
pp. 103292
Author(s):  
Wanna Cai ◽  
Shengmei Xu ◽  
Ting Ma ◽  
Xiaoqi Zhang ◽  
Bo Liu ◽  
...  
Keyword(s):  
Triterpenoid Saponins ◽  
Inhibitory Activities ◽  
Hovenia Dulcis

scholarly journals Extracts from Pulsatilla patens target cancer-related signaling pathways in HeLa cells

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Grażyna Łaska ◽  
Magdalena Maciejewska-Turska ◽  
Elwira Sieniawska ◽  
Łukasz Świątek ◽  
David S. Pasco ◽  
...  
Keyword(s):  
Signaling Pathways ◽  
Hela Cells ◽  
Luciferase Reporter ◽  
Cervical Cancer Cell Line ◽  
Phytochemical Analysis ◽  
Root Extract ◽  
Triterpenoid Saponins ◽  
Cancer Signaling ◽  
Methanolic Extracts ◽  
Pulsatilla Patens

AbstractThe purpose of this study was to determine if a methanolic extract of the Pulsatilla patens (L.) Mill. can inhibit the progression of cancer through the modulation of cancer-related metabolic signaling pathways. We analyzed a panel of 13 inducible luciferase reporter gene vectors which expression is driven by enhancer elements that bind to specific transcription factors for the evaluation of the activity of cancer signaling pathways. The root extract of P. patens exhibited strong inhibition of several signaling pathways in HeLa cells, a cervical cancer cell line, and was found to be the most potent in inhibiting the activation of Stat3, Smad, AP-1, NF-κB, MYC, Ets, Wnt and Hdghog, at a concentration of 40 µg/mL. The methanolic extracts of P. patens enhanced apoptotic death, deregulated cellular proliferation, differentiation, and progression towards the neoplastic phenotype by altering key signaling molecules required for cell cycle progression. This is the first study to report the influence of Pulsatilla species on cancer signaling pathways. Further, our detailed phytochemical analysis of the methanolic extracts of the P. patens allowed to deduce that compounds, which strongly suppressed the growth and proliferation of HeLa cancer cells were mainly triterpenoid saponins accompanied by phenolic acids.

scholarly journals Morphological and Chemical Factors Related to Western Flower Thrips Resistance in the Ornamental Gladiolus

Plants ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 1384
Author(s):  
Dinar S. C. Wahyuni ◽  
Young Hae Choi ◽  
Kirsten A. Leiss ◽  
Peter G. L. Klinkhamer
Keyword(s):  
Host Plant ◽  
Plant Resistance ◽  
Host Plant Resistance ◽  
Frankliniella Occidentalis ◽  
Western Flower Thrips ◽  
Resistance Breeding ◽  
Breeding Programs ◽  
Triterpenoid Saponins ◽  
Flower Thrips ◽  
Highly Correlated

Understanding the mechanisms involved in host plant resistance opens the way for improved resistance breeding programs by using the traits involved as markers. Pest management is a major problem in cultivation of ornamentals. Gladiolus (Gladiolus hybridus L.) is an economically important ornamental in the Netherlands. Gladiolus is especially sensitive to attack by western flower thrips (Frankliniella occidentalis (Pergande) (Thysanoptera:Thripidae)). The objective of this study was, therefore, to investigate morphological and chemical markers for resistance breeding to western flower thrips in Gladiolus varieties. We measured thrips damage of 14 Gladiolus varieties in a whole-plant thrips bioassay and related this to morphological traits with a focus on papillae density. Moreover, we studied chemical host plant resistance to using an eco-metabolomic approach comparing the 1H NMR profiles of thrips resistant and susceptible varieties representing a broad range of papillae densities. Thrips damage varied strongly among varieties: the most susceptible variety showed 130 times more damage than the most resistant one. Varieties with low thrips damage had shorter mesophylls and epidermal cells, as well as a higher density of epicuticular papillae. All three traits related to thrips damage were highly correlated with each other. We observed a number of metabolites related to resistance against thrips: two unidentified triterpenoid saponins and the amino acids alanine and threonine. All these compounds were highly correlated amongst each other as well as to the density of papillae. These correlations suggest that papillae are involved in resistance to thrips by producing and/or storing compounds causing thrips resistance. Although it is not possible to distinguish the individual effects of morphological and chemical traits statistically, our results show that papillae density is an easy marker in Gladiolus-breeding programs targeted at increased resistance to thrips.

ChemInform Abstract: Sarasinosides D-G: Four New Triterpenoid Saponins (I)-(III) from the Sponge Asteropus sarasinosum.

ChemInform ◽  
2010 ◽  
Vol 24 (6) ◽  
pp. no-no
Author(s):  
A. ESPADA ◽  
C. JIMENEZ ◽  
J. RODRIGUEZ ◽  
P. CREWS ◽  
R. RIGUERA
Keyword(s):  
Triterpenoid Saponins
Sign in / Sign up

Export Citation Format

Share Document