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Marine Drugs, Volume 24, Issue 2

2026 February - 34 articles

Cover Story: Smart Secondary Metabolites are natural products defined by structural originality, biosynthetic flexibility, ecological relevance, and broad biological interactions. Elatol, a halogenated chamigrane sesquiterpene produced mainly by Laurencia red seaweeds and sometimes accumulated by their consumers, exemplifies this concept. Forged by marine evolution and shaped by ecological pressures to mediate defense, signaling, and species interactions, elatol embodies adaptive chemical versatility. Its multifunctionality extends beyond the ocean, revealing wide pharmacological promise and biotechnological potential. With its rare architecture, stereochemical complexity, and distinctive biosynthetic origin, elatol emerges as a paradigm of evolutionary chemical innovation, linking environment, metabolism, and function. View this paper
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Articles (34)

  • Article
  • Open Access
362 Views
21 Pages

Anti-Photoaging Effects of a Polysaccharide from Kappaphycus alvarezii In Vitro and In Vivo

  • Yixuan Lai,
  • Yuan Wang,
  • Abdul Mueed,
  • Peng Shu,
  • Lijun You and
  • Jiangming Zhong

21 February 2026

The red alga Kappaphycus alvarezii is a rich source of polysaccharides, but their high molecular weight limits skin permeability and bioavailability. To address this, we employed a free-radical degradation method to produce a low-molecular-weight pol...

  • Article
  • Open Access
255 Views
16 Pages

Marine Microalga Tisochrysis lutea F&M-M36 Modulates Gut Microbiota and Intestinal Cholesterol Transport Gene Expression in Association with Selected Early-Stage Metabolic Alterations Under High-Fat Feeding

  • Elisabetta Bigagli,
  • Niccolò Meriggi,
  • Mario D’Ambrosio,
  • Natascia Biondi,
  • Liliana Rodolfi,
  • Alberto Niccolai,
  • Gianluca Bartolucci,
  • Marta Menicatti,
  • Carlotta de Filippo and
  • Cristina Luceri

21 February 2026

Modulation of the gut microbiota represents a promising approach to counteract diet-induced metabolic alterations, with microalgae emerging as potential interventions. Building on our previous in vivo evidence that dietary supplementation with the ma...

  • Article
  • Open Access
449 Views
21 Pages

Posidonia oceanica (L.) Delile as a Marine Anti-Inflammatory Modulator of Keratinocyte Inflammatory Responses Relevant to Psoriasis

  • Marzia Vasarri,
  • Donatella Degl’Innocenti,
  • Matteo Lulli,
  • Nicola Schiavone,
  • Alice Verdelli,
  • Marzia Caproni,
  • Emiliano Antiga and
  • Emanuela Barletta

19 February 2026

Skin inflammation is characterized by oxidative stress, excessive keratinocyte activation, and the overproduction of pro-inflammatory cytokines. In a previous study, we demonstrated that the hydroalcoholic extract from Posidonia oceanica leaves (POE)...

  • Article
  • Open Access
368 Views
18 Pages

Synthesis, Biological Evaluation, and Computational Studies of Phenolic N-Acetylglucosamine Glycosides as α-Glucosidase Inhibitors

  • Wenjie Wang,
  • Kun Gao,
  • Guantian Li,
  • Zongji Wang,
  • Kecheng Li,
  • Song Liu,
  • Huahua Yu and
  • Ronge Xing

19 February 2026

Type 2 diabetes mellitus (T2DM) is one of the most prevalent chronic metabolic diseases, and inhibition of α-glucosidase activity represents an effective therapeutic strategy. Chitin is the most abundant renewable polysaccharide in the ocean, w...

  • Article
  • Open Access
448 Views
22 Pages

Synergistic Effects of Light and Salinity on Carotenoid and Biomass Composition of Synechocystis PCC6803 Cultures

  • Cecilia Faraloni,
  • Gergely Erno Lakatos,
  • Francesco Balestra,
  • Anna Pugliese,
  • Graziella Chini Zittelli,
  • Bernardo Cicchi,
  • Eleftherios Touloupakis and
  • Giuseppe Torzillo

19 February 2026

Light and salt stress affect the growth of plants and microorganisms, causing photo-oxidative stress. The cyanobacterium Synechocystis is notable for its adaptability to and sustainability in seawater. In this study, the synergistic effects of differ...

  • Article
  • Open Access
477 Views
25 Pages

Integrative Metabolomics and Systems Pharmacology Reveal PPARγ-Centered Antidiabetic Mechanisms of Caulerpa racemosa and Its Bioactive Compounds

  • Fahrul Nurkolis,
  • Annette d’Arqom,
  • Evhy Apryani,
  • Nurmawati Fatimah,
  • Adha Fauzi Hendrawan,
  • Izza Afkarina,
  • Reggie Surya,
  • Happy Kurnia Permatasari,
  • Dante Saksono Harbuwono and
  • Raymond Rubianto Tjandrawinata
  • + 2 authors

17 February 2026

Type 2 diabetes mellitus (T2DM) is a complex metabolic disorder requiring safe, multitarget therapeutic strategies. Marine macroalgae represent an underexplored source of bioactives with pleiotropic metabolic effects. This study investigated the anti...

  • Article
  • Open Access
519 Views
17 Pages

Harnessing Biogas into High-Value Chemicals: The Role of Algal–Methanotrophic Co-Cultures

  • Rebecca Serna-García,
  • Ysis Lanzoni,
  • Octavio García-Depraect,
  • Raul Muñoz and
  • Sara Cantera

17 February 2026

The conversion of biogas into high-value chemicals for pharmaceutical, cosmetic, and nutraceutical markets offers an attractive alternative to conventional fossil-based production routes, enabling circular value chains with significant socio-economic...

  • Article
  • Open Access
335 Views
13 Pages

Diverse and Bioactive Lactones from the Sri Lankan Mangrove-Derived Fungus Talaromyces sp. SCSIO41445

  • Parakkrama Wijerathna,
  • Xinqi Chen,
  • Yi Chen,
  • Yufan Zhang,
  • Jian Cai,
  • Mengjing Cong,
  • Ying Liu,
  • Lalith Jayasinghe,
  • Yonghong Liu and
  • Xuefeng Zhou
  • + 1 author

14 February 2026

Three previously uncharacterized lactones, namely penicianstinoid L (1), talaromyketide J (2) and peniciisocoumarin K (3), along with twenty-eight known compounds (431), were yielded from the mangrove-derived fungus Talaromyces sp. SCSIO41445,...

  • Review
  • Open Access
651 Views
23 Pages

Phaeodactylum tricornutum as a Chassis: Insights into Its Potential, Challenges, and Perspectives

  • Sen Wang,
  • Yunuo Hao,
  • Tengsheng Qiao,
  • Ruihao Zhang,
  • Deliang Yu,
  • Hailiang Wang,
  • Yongliang Liu,
  • Yuhao Sun,
  • Di Xu and
  • Kehou Pan
  • + 1 author

13 February 2026

Phaeodactylum tricornutum is one of the most well-characterized microalgae and serves as a pivotal model diatom in global carbon fixation and the mediation of biogeochemical cycling of essential nutrients. Over the past few decades, the availability...

  • Article
  • Open Access
452 Views
20 Pages

Enhanced Production of Bioactive Polyunsaturated Fatty Acids and Pigments in Rhodosorus marinus: Optimization of Thermal and Photic Stress Conditions

  • Wen-Ping Cheng,
  • Han-Yang Yeh,
  • Yen-Ling Chen,
  • Yi-Jung Chen,
  • Fat-Tin Agassi Sze,
  • Chi-Cheng Huang,
  • Fan-Hua Nan,
  • Ming-Chih Fang and
  • Meng-Chou Lee

13 February 2026

The marine unicellular red alga Rhodosorus marinus is a promising source of the valuable phycobiliprotein phycoerythrin and essential omega-3 polyunsaturated fatty acids (PUFAs), yet the environmental triggers for their optimal co-production remain t...

  • Article
  • Open Access
382 Views
23 Pages

Content, Ratio and Productivity of Amphidinols in Wild-Type and Mutagenized Strains of Amphidinium carterae at Different Growth Stages

  • Ivan Citakovic,
  • Gaël Bougaran,
  • Fabienne Hervé,
  • Damien Réveillon,
  • Cyril El Khoury,
  • Francis Mairet and
  • Bruno Saint-Jean

12 February 2026

As agriculture faces increasing pressure to reduce pesticide residues and heavy metal accumulation in soils, marine microalgae are emerging as sustainable sources of biopesticides. Among them, Amphidinium carterae produces amphidinols (AMs), polyketi...

  • Review
  • Open Access
976 Views
36 Pages

12 February 2026

Antimicrobial peptides (AMPs) are increasingly promoted as alternatives or complements to conventional antibiotics, yet growing evidence demonstrates that resistance to AMPs is neither rare nor incidental. Here, we define the anti-AMP resistome as a...

  • Article
  • Open Access
538 Views
20 Pages

11 February 2026

Triple-negative breast cancer (TNBC) represents significant therapeutic challenges due to its aggressive behavior, metabolic plasticity, and lack of targeted treatments, prompting investigation of biologically active triterpene glycosides from the st...

  • Review
  • Open Access
599 Views
20 Pages

Shellfish as a Source of Bioactive Compounds and Extracts: A Comprehensive Review of Their Anticancer and Antimicrobial Properties

  • N. M. Liyanage,
  • Li Yiqiao,
  • K. K. Asanka Sanjeewa,
  • Kyung Yuk Ko,
  • D. P. Nagahawatta and
  • You-Jin Jeon

11 February 2026

Shellfish are a diverse group of marine animals that play a significant role, as a high proportion of the world’s seafood is produced by shellfish. In general, shellfish contain higher amounts of nutrients that benefit consumer health. In recen...

  • Article
  • Open Access
360 Views
21 Pages

8 February 2026

Objective: The formation of calcium oxalate (CaOx) kidney stones is accompanied by the pyroptosis of renal epithelial cells. The risk of kidney stone formation can possibly be reduced through pyroptosis inhibition. Methods: Pyroptosis of HK-2 cells i...

  • Review
  • Open Access
484 Views
15 Pages

8 February 2026

This scoping review mapped the available evidence on marine algae-derived bioactive compounds, focusing on their biological activities related to collagen stabilization, matrix metalloproteinase (MMP) inhibition, and enamel remineralization in dental...

  • Review
  • Open Access
637 Views
18 Pages

Marine-Derived Defenses Against HIV: Emerging Bioactive Molecules from the Seas

  • Tiago Santos,
  • Ana Pintão,
  • Carolina S. Marques and
  • Pedro Brandão

7 February 2026

Marine ecosystems have yielded a remarkable diversity of bioactive metabolites with relevance for antiviral drug discovery. This article reviews recent advances in marine-derived compounds investigated as anti-HIV agents. Metabolites, such as sulfate...

  • Article
  • Open Access
481 Views
18 Pages

Anti-Inflammatory Effects of Marine-Derived Resorcylic Acid Lactone Derivatives in Ulcerative Colitis via the MAPK/ERK Pathway

  • Xuan Zhang,
  • Tuxiang Mo,
  • Yuyue Qin,
  • Meiling Le,
  • Li Tang,
  • Zhao Zhang,
  • Jiling Yi,
  • Fuling Cen,
  • Wanshan Li and
  • Guangying Chen

5 February 2026

Ulcerative colitis (UC) is an inflammatory bowel disease characterized by recurrent inflammation of the colonic mucosa, and there is currently a lack of safe and effective treatment drugs. Resorcylic acid lactones (RALs) are a natural product that ha...

  • Article
  • Open Access
1,380 Views
22 Pages

Taxonomic Diversity and Metabolic and Pharmacological Profiles of Marine-Derived Actinomycetes from the Lisbon and Setúbal Coast, Portugal

  • Miguel P. Coelho,
  • Pablo Suárez-Moo,
  • Mariana Rocha,
  • Artur O. G. Matos,
  • Vanda Marques,
  • Sara Margarida,
  • Mário Mil-Homens,
  • Alejandra Prieto-Davó,
  • Cecília M. P. Rodrigues and
  • Susana P. Gaudêncio
  • + 2 authors

3 February 2026

This study explores the taxonomic diversity, metabolic profile, and bioactivity of marine-derived actinomycetes isolated from sediments collected off the coast of Lisbon and Setúbal Peninsula, Portugal. The combined use of two sediment pre-tre...

  • Article
  • Open Access
471 Views
20 Pages

Brevetoxin Metabolites: Emerging Toxins in French Shellfish Determined by LC-MS/MS and ELISA

  • Zouher Amzil,
  • Amélie Derrien,
  • Korian Lhaute,
  • Aouregan Terre Terrillon and
  • Simon Tanniou

3 February 2026

In France, as part of the monitoring program for the emergence of marine toxins in shellfish (EMERGTOX), brevetoxins (BTX-2, BTX-3) were first detected in shellfish from Corsica (Mediterranean Sea) in 2018. The complex metabolic transformation of bre...

  • Article
  • Open Access
1,012 Views
20 Pages

Analytical Framework to Navigate Microalgae-Based Product Development—Aligning Commercialization and Regulatory Pathways

  • Galey Tenzin,
  • Kira Schipper,
  • Harshit Rathore,
  • Hemil Shah,
  • Edgar Brea,
  • Ben Hankamer and
  • Damian Hine

3 February 2026

After numerous false starts, the global microalgae industry is re-emerging, driven by its potential to address critical challenges in food and nutrition, sustainable energy, nutraceuticals, cosmetics and pharmaceuticals, and climate change mitigation...

  • Article
  • Open Access
527 Views
26 Pages

A Novel Cobalt-Activated Halotolerant α-Amylase with High Specific Activity from Priestia sp. W243 in Kuwait Sabkha for Biotechnological Applications

  • Surendraraj Alagarsamy,
  • Sabeena Farvin Koduvayur Habeebullah,
  • Ismail Saheb Azad,
  • Saja Adel Fakhraldeen,
  • Turki Al Said,
  • Aws Al Ghuniam and
  • Faiza Al-Yamani

3 February 2026

Sabkhas, hypersaline ecosystems along Kuwait’s coastal zone, are extreme environments that harbor diverse halophilic microorganisms with significant biotechnological potential. Despite this, they remain underexplored, particularly in the contex...

  • Article
  • Open Access
362 Views
27 Pages

2 February 2026

Fucoidans are natural compounds that exhibit bioactivity against age-related macular degeneration (AMD), the leading cause of central vision loss in industrialized nations. Pathological factors like oxidative stress and lipid peroxidation play vital...

  • Article
  • Open Access
391 Views
18 Pages

2 February 2026

Phorbazoles are bioactive marine alkaloids whose development is hampered by limited supply. We report a concise synthesis of the deschloro-phorbazole core via an optimized iodine-catalyzed oxazole annulation (56% yield). This route enabled efficient...

  • Article
  • Open Access
1,329 Views
25 Pages

Optimisation of Alginate Extraction and Characterisation of Polysaccharides from Brown Seaweed from the Portuguese Coast

  • Joana Corrêa Mendes,
  • Joana F. A. Valente,
  • Fani Sousa,
  • Raul Bernardino,
  • Susana Bernardino,
  • Clélia Afonso and
  • Bárbara Chagas

1 February 2026

Alginate is a widely used and versatile biopolymer with an ever-expanding range of applications in the pharmaceutical and biomedical industries. This highlights the importance of developing sustainable and renewable production sources. Conventional e...

  • Review
  • Open Access
1,347 Views
31 Pages

Smart Secondary Metabolites in Marine Environments: The Case of Elatol

  • Angélica R. Soares,
  • Nathalia Nocchi,
  • Ana R. Díaz-Marrero,
  • Renato C. Pereira and
  • José J. Fernández

1 February 2026

The concept of “Smart Secondary Metabolites” is introduced here to describe a privileged class of natural products defined by structural originality, biosynthetic adaptability, and broad interaction potential with biological systems. Elat...

  • Article
  • Open Access
1,107 Views
17 Pages

Corallomycetellains A–J, Cytotoxic Epipolythiodioxopiperazine Alkaloids Isolated from the Fungi Corallomycetella repens HDN23-0007

  • Chenqi Zhang,
  • Luning Zhou,
  • Shuo Zhao,
  • Wenxue Wang,
  • Xiaomin Zhang,
  • Qian Che,
  • Tianjiao Zhu,
  • Mei Han and
  • Dehai Li

1 February 2026

Ten new epipolythiodioxopiperazine (ETP) alkaloids, named corallomycetellains A–J (110), along with one known analogue, haematocin (11), were isolated from the fungi Corallomycetella repens HDN23-0007. Their structures, including absolut...

  • Article
  • Open Access
559 Views
17 Pages

Peptide Modulator of TRPV1 Channel Increases Long-Term Potentiation in the Hippocampus and Reduces Anxiety and Fear in Mice Under Acute Stress

  • Vladimir M. Pavlov,
  • Anastasia Yu. Fedotova,
  • Victor A. Palikov,
  • Yulia A. Logashina,
  • Kamilla I. Zagitova,
  • Igor A. Dyachenko,
  • Alexander V. Popov and
  • Yaroslav A. Andreev

31 January 2026

One of the attractive targets for the relief of stress conditions is TRPV1, which is expressed mostly in primary afferent neurons (nociceptors) and in the central nervous system, mainly in the cortex and hippocampus. We evaluated the action of a pote...

  • Article
  • Open Access
817 Views
21 Pages

Deep-Sea Marine Metabolites as Promising Anti-Tubercular Agents: CADD-Guided Targeting of the F420-Dependent Oxidoreductase

  • Ria Desai,
  • Amane A. Alaroud,
  • Gagan Preet,
  • Rishi Vachaspathy Astakala,
  • Rainer Ebel and
  • Marcel Jaspars

31 January 2026

Tuberculosis, caused by Mycobacterium tuberculosis (M. tb), remains a leading global threat, escalated now by the rise of multidrug-resistant (MDR-TB) and extensively drug-resistant (XDR-TB) strains. In search of a novel anti-tubercular agent with a...

  • Article
  • Open Access
421 Views
14 Pages

30 January 2026

Sunlight exposure contributes to human health; however, excessive light exposure to skin, especially ultraviolet B (UV-B), can produce high amounts of reactive oxygen species (ROS) and induce inflammation. Some antioxidants, such as squalene, can pre...

  • Review
  • Open Access
549 Views
49 Pages

Targeting the Cardiovascular-Alzheimer’s Disease Axis: The Promise of Marine Bioactive Peptides

  • Chathuri Kaushalya Marasinghe,
  • Kumju Youn,
  • Chi-Tang Ho and
  • Mira Jun

29 January 2026

Cardiovascular diseases (CVDs) and Alzheimer’s disease (AD) are among the most prevalent chronic conditions, contributing significantly to global morbidity and healthcare burdens. These diseases are increasingly recognized as interconnected thr...

  • Article
  • Open Access
467 Views
16 Pages

Fucoxanthin Induces Ferroptosis in Hypopharyngeal Carcinoma Cells by Activating the p53/SLC7A11/GPX4 Axis

  • Yingxing Xie,
  • Siyu Wang,
  • Haofei Du,
  • Sihan Wu,
  • Wei Wu,
  • Guoying Qian,
  • Haomiao Ding and
  • Caisheng Wang

27 January 2026

Fucoxanthin, a marine carotenoid abundantly derived from brown algae, has been increasingly recognized for its broad-spectrum antitumor activities; however, its role in regulating ferroptosis remains insufficiently defined. Hypopharyngeal carcinoma i...

  • Review
  • Open Access
568 Views
32 Pages

Analysis Methods and Structure–Activity Relationships of Polysaccharides in Sea Cucumber: A Review

  • Xingyu Gu,
  • Pengneng Yu,
  • Yuyang Li,
  • Rui Feng,
  • Dong Lv,
  • Zhuoran Song,
  • Tong Geng,
  • Yubo Qin,
  • Ying Li and
  • Qiancheng Zhao
  • + 1 author

24 January 2026

Sea cucumber polysaccharide is a kind of heteropolysaccharide rich in sulfate groups, which has complex structures and various biological activities. Its biological activity is closely related to its chemical composition, molecular weight, and sulfat...

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Mar. Drugs - ISSN 1660-3397