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Marine Seaweed Polysaccharides-Based Engineered Cues for the Modern Biomedical Sector.

ABSTRACT: Seaweed-derived polysaccharides with unique structural and functional entities have gained special research attention in the current medical sector. Seaweed polysaccharides have been or being used to engineer novel cues with biomedical values to tackle in practice the limitations of counterparts which have become ineffective for 21st-century settings. The inherited features of seaweed polysaccharides, such as those of a biologically tunable, biocompatible, biodegradable, renewable, and non-toxic nature, urge researchers to use them to design therapeutically effective, efficient, controlled delivery, patient-compliant, and age-compliant drug delivery platforms. Based on their significant retention capabilities, tunable active units, swelling, and colloidal features, seaweed polysaccharides have appeared as highly useful materials for modulating drug-delivery and tissue-engineering systems. This paper presents a standard methodological approach to review the literature using inclusion-exclusion criteria, which is mostly ignored in the reported literature. Following that, numerous marine-based seaweed polysaccharides are discussed with suitable examples. For the applied perspectives, part of the review is focused on the biomedical values, i.e., targeted drug delivery, wound-curative potential, anticancer potentialities, tissue-engineering aspects, and ultraviolet (UV) protectant potential of seaweed polysaccharides based engineered cues. Finally, current challenges, gaps, and future perspectives have been included in this review.

SUBMITTER: Bilal M

PROVIDER: S-EPMC7024278 | biostudies-literature | 2019 Dec

REPOSITORIES: biostudies-literature

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Marine Seaweed Polysaccharides-Based Engineered Cues for the Modern Biomedical Sector.

Bilal Muhammad M Iqbal Hafiz M N HMN

Marine drugs 20191219 1

Seaweed-derived polysaccharides with unique structural and functional entities have gained special research attention in the current medical sector. Seaweed polysaccharides have been or being used to engineer novel cues with biomedical values to tackle in practice the limitations of counterparts which have become ineffective for 21st-century settings. The inherited features of seaweed polysaccharides, such as those of a biologically tunable, biocompatible, biodegradable, renewable, and non-toxic ...[more]

PMID: 31861644

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Project description:Background. Transforming waste and non-food materials into bulk biofuels and chemicals represents a major stride in creating a sustainable bioindustry, optimizing the use of resources while reducing environmental footprints. Yet, despite these advancements, the production of high-value natural products often continues to rely on first-generation substrates, underscoring the intricate processes and specific requirements of their biosynthesis. This is also true for Streptomyces lividans, a renowned host organism celebrated for its capacity to produce and uncover a wide array of natural products, attributed to its genetic versatility and potent secondary metabolism. Given this context, it becomes imperative to assess and optimize this microorganism for the synthesis of natural products specifically from waste and non-food substrates. Results. We metabolically engineered S. lividans TK24 to heterologously produce the ribosomally synthesized and post-translationally modified peptide, bottromycin, as well as the polyketide, pamamycin. The modified strains successfully produced these compounds using waste and non-food model substrates like protocatechuate (derived from lignin), 4-hydroxybenzoate (sourced from plastic waste), and mannitol (from seaweed). Comprehensive transcriptomic and metabolomic analyses offered insights into how these substrates influenced the cellular metabolism of S. lividans. When evaluating production efficiency, S. lividans showcased remarkable tolerance, especially in a fed-batch process using a mineral medium containing the toxic aromatic 4-hydroxybenzoate, leading to enhanced and highly selective bottromycin production. Additionally, it generated a unique spectrum of pamamycins when cultured in mannitol-rich seaweed extract without the need for added nutrients. Conclusion. Our study showcases the successful production of high-value natural products using varied waste and non-food raw materials, thereby circumventing the reliance on costly, food-competing resources. S. lividans exhibited remarkable adaptability and resilience across these diverse substrates. When cultured on aromatic compounds, it displayed a distinct array of intracellular CoA esters, presenting promising avenues for polyketide production. Future research could focus on enhancing S. lividans' substrate utilization pathways to more efficiently process the intricate mixtures commonly found in waste and non-food sources.

Dataset Information

Marine Seaweed Polysaccharides-Based Engineered Cues for the Modern Biomedical Sector.

Publications

Marine Seaweed Polysaccharides-Based Engineered Cues for the Modern Biomedical Sector.

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