Publications by authors named "R M Cusido"

One of the aims of plant in vitro culture is to produce secondary plant metabolites using plant cells and organ cultures, such as cell suspensions, adventitious, and hairy roots (among others). In cases where the biosynthesis of a compound in the plant is restricted to a specific organ, unorganized systems, such as plant cell cultures, are sometimes unsuitable for biosynthesis. Then, its production is based on the establishment of organ cultures such as roots or aerial shoots.

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More knowledge is needed about the molecular/cellular control of paclitaxel (PTX) production in spp. cell cultures. In this study, the yield of this anticancer agent in cell suspensions was improved 11-fold after elicitation with coronatine (COR) compared to the untreated cells, and 18-fold when co-supplemented with methyl-β-cyclodextrins (β-CDs).

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Environmental conditions are key factors in the modulation of the epigenetic mechanisms regulating gene expression in plants. Specifically, the maintenance of cell cultures in optimal conditions alters methylation patterns and, consequently, their genetic transcription and metabolism. Paclitaxel production in cell cultures is reduced during its maintenance in conditions, compromising the biotechnological production of this valuable anticancer agent.

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Article Synopsis
  • The paper investigates how lipid droplets (LDs) in Taxus media cells contribute to the production and release of paclitaxel (PTX), an important anticancer drug.
  • Researchers found that silencing genes related to caleosins (CLOs)—proteins associated with LDs—led to decreased LD size and numbers, which negatively affected PTX biosynthesis.
  • Conversely, enhancing CLO expression through specific treatments increased LD accumulation, thereby boosting PTX secretion, highlighting the dual role of CLOs in maintaining LD stability and promoting PTX production.
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