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芒果苷与姜黄素在调节PI3K/Akt/mTOR信号通路中的纳米技术协同作用:卵巢癌精准治疗的新前沿

Nanotechnological synergy of mangiferin and curcumin in modulating PI3K/Akt/mTOR pathway: a novel front in ovarian cancer precision therapeutics.

作者信息

Alharbi Hanan M, Alqahtani Taha, Alamri Ali H, Kumarasamy Vinoth, Subramaniyan Vetriselvan, Babu K Suresh

机构信息

Department of Pharmaceutical sciences, College of Pharmacy, Umm Al-Qura University, Makkah, Saudi Arabia.

Department of Pharmacology, College of Pharmacy, King Khalid University, Abha, Saudi Arabia.

出版信息

Front Pharmacol. 2024 Jan 4;14:1276209. doi: 10.3389/fphar.2023.1276209. eCollection 2023.

Abstract

Ovarian cancer, colloquially termed the "silent killer" among gynecological malignancies, remains elusive due to its often-asymptomatic progression and diagnostic challenges. Central to its pathogenesis is the overactive PI3K/Akt/mTOR signaling pathway, responsible for various cellular functions, from proliferation to survival. Within this context, the phytochemical compounds mangiferin (derived from ) and curcumin (from ) stand out for their potential modulatory effects. However, their inherent bioavailability challenges necessitate innovative delivery systems to maximize therapeutic benefits. This study seeks to synergize the merits of nanotechnology with the therapeutic properties of mangiferin and curcumin, aiming to bolster their efficacy against ovarian cancer. Employing specific nanotechnological principles, we engineered exosomal and liposomal nano-carriers for mangiferin and curcumin, targeting the PI3K/Akt/mTOR pathway. Molecular docking techniques mapped the interactions of these phytochemicals with key proteins in the pathway, analyzing their binding efficiencies. Furthermore, molecular dynamics simulations, spanning 100 nanoseconds, verified these interactions, with additional computational methodologies further validating our findings. The rationale for the 100 nanoseconds time span lies in its sufficiency to observe meaningful protein-ligand interactions and conformational changes. Notably, liposomal technology provided an enhancement in drug delivery by protecting these compounds from degradation, allowing controlled release, and improving cellular uptake. Our computational investigations demonstrated notable binding affinities of mangiferin and curcumin: PI3K at -11.20 kcal/mol, Akt at -15.16 kcal/mol, and mTOR at -10.24 kcal/mol. The adoption of exosome/liposome-mediated delivery significantly amplified the bioavailability and cellular uptake of these nano-formulated compounds, positioning them as potential stalwarts in ovarian cancer intervention. A brief explanation of exosome/liposome-mediated delivery involves the use of these vesicles to encapsulate and transport therapeutic agents directly to the target cells, enhancing drug delivery efficiency and minimizing side effects. Addressing ovarian cancer's intricacies, dominated by the erratic PI3K/Akt/mTOR signaling, mandates innovative therapeutic strategies. Our pioneering approach converges nanotechnological liposomal delivery with mangiferin and curcumin's natural efficacies. This confluence, validated by computational insights, heralds a paradigm shift in ovarian cancer treatment. As our findings underscore the collaborative potential of these phytochemicals, it beckons further exploration in translational studies and clinical applications, ensuring the best intersection of nature and technology for therapeutic advantage.

摘要

卵巢癌在妇科恶性肿瘤中常被称为“沉默杀手”,由于其通常无症状进展和诊断挑战,仍然难以捉摸。其发病机制的核心是过度活跃的PI3K/Akt/mTOR信号通路,该通路负责从增殖到存活的各种细胞功能。在此背景下,植物化学化合物芒果苷(来源于 )和姜黄素(来源于 )因其潜在的调节作用而脱颖而出。然而,它们固有的生物利用度挑战需要创新的递送系统来最大化治疗益处。本研究旨在将纳米技术的优点与芒果苷和姜黄素的治疗特性相结合,旨在增强它们对卵巢癌的疗效。利用特定的纳米技术原理,我们为芒果苷和姜黄素设计了外泌体和脂质体纳米载体,靶向PI3K/Akt/mTOR通路。分子对接技术绘制了这些植物化学物质与该通路中关键蛋白质的相互作用,分析了它们的结合效率。此外,长达100纳秒的分子动力学模拟验证了这些相互作用,其他计算方法进一步验证了我们的发现。选择100纳秒时间跨度的理由在于其足以观察到有意义的蛋白质-配体相互作用和构象变化。值得注意的是,脂质体技术通过保护这些化合物不被降解、实现控释和改善细胞摄取,提高了药物递送效率。我们的计算研究表明芒果苷和姜黄素具有显著的结合亲和力:与PI3K的结合亲和力为-11.20千卡/摩尔,与Akt的结合亲和力为-15.16千卡/摩尔,与mTOR的结合亲和力为-10.24千卡/摩尔。采用外泌体/脂质体介导的递送显著提高了这些纳米制剂化合物的生物利用度和细胞摄取,使其成为卵巢癌干预的潜在有力手段。对外泌体/脂质体介导的递送的简要解释是,利用这些囊泡将治疗剂包裹并直接运输到靶细胞,提高药物递送效率并将副作用降至最低。应对由不稳定的PI3K/Akt/mTOR信号主导的卵巢癌的复杂性,需要创新的治疗策略。我们的开创性方法将纳米技术脂质体递送与芒果苷和姜黄素的天然疗效相结合。这种融合经计算分析验证,预示着卵巢癌治疗的范式转变。正如我们的研究结果强调了这些植物化学物质的协同潜力,它促使在转化研究和临床应用中进行进一步探索,确保自然与技术的最佳结合以获得治疗优势。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/db03/10794632/0cdc904217ed/fphar-14-1276209-g001.jpg

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