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This eBook is a collection of articles from a Frontiers Research Topic. Frontiers Research Topics are very popular trademarks of the Frontiers Journals Series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area! Find out more on how to host your own Frontiers Research Topic or contribute to one as an author by contacting the Frontiers Editorial Office: frontiersin.org/about/contact

Medicine --- Immunology --- glycosaminoglycan (GAG) --- proteoglycans (PG) --- immune response --- inflammation --- heparan sulfate (HS) --- chondroitin sulfate (CS) --- dermatan sulfate (DS) --- hyaluronan

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Despite the efficiency of current cancer treatments, cancer is still a deadly disease for too many. In 2008, 7.6 million people died of cancer; with the current development, it is estimated that the annual cancer death number will grow to 13 million by 2030. There is clearly a need for not only more research but also more innovative and out of the mainstream scientific ideas to discover and develop even better cancer treatments. This book presents the collective works published in the recent Special Issue entitled “Killing Cancer: Discovery and Selection of New Target Molecules”. These articles comprise a selection of studies, ideas, and opinions that aim to facilitate knowledge, thoughts, and discussion about which biological and molecular mechanisms in cancer we should target and how we should target them.

ferlin --- myoferlin --- dysferlin --- otoferlin --- C2 domain --- plasma membrane --- sulconazole --- NF-κB --- IL-8 --- mammosphere --- breast cancer stem cells --- AF1Q --- MLLT11 --- WNT --- STAT --- esophageal cancer --- prognosis --- mTORC1 --- mTORC2 --- metabolism --- rapalogs --- mTOR inhibitors --- cancer metabolism --- mTOR in immunotherapy --- nutrient metabolism --- kinase inhibitors --- mTOR signaling --- MAPK kinase --- ERK1 --- ERK2 --- CD domain --- Rolled --- SCH772984 --- VRT-11E --- sevenmaker --- cancer therapy --- EMT --- lysosome --- lysosome-mediated invasion --- MZF1 --- phosphorylation --- PAK4 --- SUMOylation --- transcription factor --- zinc finger --- glucocorticoids --- 3D growth --- nuclear factor kappa-light-chain-enhancer of activated B-cells (NF-κB) --- epithelial–mesenchymal transition --- anoikis --- proliferation --- targeted cancer therapy --- disulfiram --- NPL4 --- replication stress --- DNA damage --- BRCA1 --- BRCA2 --- ATR pathway --- PDAC --- TCIRG1 --- ATP6V0a3 --- invasion --- migration --- matrix degradation --- pH-regulation --- autophagy --- multidrug resistance in cancer --- drug efflux pumps --- ATP-binding cassette transporter --- breast cancer resistance protein (BCRP) --- ABCG2 --- pyrazolo-pyrimidine derivative --- SCO-201 --- colorectal cancer --- immunotherapy --- inflammation --- microsatellite instability --- oncofetal chondroitin sulfate --- chondroitin sulfate --- cancer --- solid tumors --- target --- pediatric cancer --- VAR2 --- dexamethasone --- thyroid cancer --- microgravity --- space environment --- n/a --- epithelial-mesenchymal transition

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This book includes recent advances in the use of clays in the design of medicinal products and medicinal devices. The pharmaceutical applications of nanoclays are far ranging, because of their distinct advantages: they are versatile (possess a wide range of mechanical, chemical and physical properties) and available at reasonable costs. Some special clays (mainly kaolinite, halloysite, montmorillonite, saponite, hectorite, palygorskite and sepiolite), as well as semi-synthetic (organoclays) or synthetic (double layer hydroxides) derivatives, are very useful materials for modulating drug delivery. In the last decade, several actives have been loaded onto nanoclays and similar inorganic excipients to increase solubility, improve stability, reduce toxicity, and enhance bioavailability, with a consequent increase in therapeutic response. Polymer/clay nanocomposites with synergic properties have been developed, showing improved mechanical properties with respect to the pristine polymer matrices and allowing modified release of loaded actives. Moreover, nanoclays have very recently demonstrated positive effects on the proliferation and migration of fibroblasts. The development of clay-based medicinal products and medicinal devices requires experience in the fields of both clay structure and properties and pharmaceutical technology design.

Medicine --- hydrochlorothiazide --- cyclodextrins --- sepiolite --- nanoclay --- dissolution rate --- tablet --- electrospinning --- chitosan --- chondroitin sulfate --- scaffolds --- montmorillonite --- halloysite --- fibroblasts proliferation --- immune response --- glycosaminoglycans --- antimicrobial properties --- palygorskite --- spring water --- hydrogel --- fibroblast --- biocompatibility --- wound healing --- mesoporous clay --- Neusilin --- aeroperl --- liquisolid technique --- glyburide --- dissolution improvement --- hydrotalcite --- ketoprofen --- hybrid --- photostability --- hydrogel film --- bioadhesion --- heavy metal --- hazardous element --- element mobility --- clay minerals --- toxicity --- palygorksite --- proliferation --- Franz cell --- bioactive elements --- praziquantel --- drug --- organic solvents --- in vitro dissolution tests --- cytotoxicity --- targeted drug delivery --- halloysite nanotube --- osteosarcoma --- methotrexate --- surface modification --- n/a

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Despite the efficiency of current cancer treatments, cancer is still a deadly disease for too many. In 2008, 7.6 million people died of cancer; with the current development, it is estimated that the annual cancer death number will grow to 13 million by 2030. There is clearly a need for not only more research but also more innovative and out of the mainstream scientific ideas to discover and develop even better cancer treatments. This book presents the collective works published in the recent Special Issue entitled “Killing Cancer: Discovery and Selection of New Target Molecules”. These articles comprise a selection of studies, ideas, and opinions that aim to facilitate knowledge, thoughts, and discussion about which biological and molecular mechanisms in cancer we should target and how we should target them.

Research & information: general --- Biology, life sciences --- ferlin --- myoferlin --- dysferlin --- otoferlin --- C2 domain --- plasma membrane --- sulconazole --- NF-κB --- IL-8 --- mammosphere --- breast cancer stem cells --- AF1Q --- MLLT11 --- WNT --- STAT --- esophageal cancer --- prognosis --- mTORC1 --- mTORC2 --- metabolism --- rapalogs --- mTOR inhibitors --- cancer metabolism --- mTOR in immunotherapy --- nutrient metabolism --- kinase inhibitors --- mTOR signaling --- MAPK kinase --- ERK1 --- ERK2 --- CD domain --- Rolled --- SCH772984 --- VRT-11E --- sevenmaker --- cancer therapy --- EMT --- lysosome --- lysosome-mediated invasion --- MZF1 --- phosphorylation --- PAK4 --- SUMOylation --- transcription factor --- zinc finger --- glucocorticoids --- 3D growth --- nuclear factor kappa-light-chain-enhancer of activated B-cells (NF-κB) --- epithelial-mesenchymal transition --- anoikis --- proliferation --- targeted cancer therapy --- disulfiram --- NPL4 --- replication stress --- DNA damage --- BRCA1 --- BRCA2 --- ATR pathway --- PDAC --- TCIRG1 --- ATP6V0a3 --- invasion --- migration --- matrix degradation --- pH-regulation --- autophagy --- multidrug resistance in cancer --- drug efflux pumps --- ATP-binding cassette transporter --- breast cancer resistance protein (BCRP) --- ABCG2 --- pyrazolo-pyrimidine derivative --- SCO-201 --- colorectal cancer --- immunotherapy --- inflammation --- microsatellite instability --- oncofetal chondroitin sulfate --- chondroitin sulfate --- cancer --- solid tumors --- target --- pediatric cancer --- VAR2 --- dexamethasone --- thyroid cancer --- microgravity --- space environment --- ferlin --- myoferlin --- dysferlin --- otoferlin --- C2 domain --- plasma membrane --- sulconazole --- NF-κB --- IL-8 --- mammosphere --- breast cancer stem cells --- AF1Q --- MLLT11 --- WNT --- STAT --- esophageal cancer --- prognosis --- mTORC1 --- mTORC2 --- metabolism --- rapalogs --- mTOR inhibitors --- cancer metabolism --- mTOR in immunotherapy --- nutrient metabolism --- kinase inhibitors --- mTOR signaling --- MAPK kinase --- ERK1 --- ERK2 --- CD domain --- Rolled --- SCH772984 --- VRT-11E --- sevenmaker --- cancer therapy --- EMT --- lysosome --- lysosome-mediated invasion --- MZF1 --- phosphorylation --- PAK4 --- SUMOylation --- transcription factor --- zinc finger --- glucocorticoids --- 3D growth --- nuclear factor kappa-light-chain-enhancer of activated B-cells (NF-κB) --- epithelial-mesenchymal transition --- anoikis --- proliferation --- targeted cancer therapy --- disulfiram --- NPL4 --- replication stress --- DNA damage --- BRCA1 --- BRCA2 --- ATR pathway --- PDAC --- TCIRG1 --- ATP6V0a3 --- invasion --- migration --- matrix degradation --- pH-regulation --- autophagy --- multidrug resistance in cancer --- drug efflux pumps --- ATP-binding cassette transporter --- breast cancer resistance protein (BCRP) --- ABCG2 --- pyrazolo-pyrimidine derivative --- SCO-201 --- colorectal cancer --- immunotherapy --- inflammation --- microsatellite instability --- oncofetal chondroitin sulfate --- chondroitin sulfate --- cancer --- solid tumors --- target --- pediatric cancer --- VAR2 --- dexamethasone --- thyroid cancer --- microgravity --- space environment

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Marine natural products are characterized by high chemical diversity, biochemical specificity, and other molecular properties that make them favorable as lead structures for drug discovery. In this field, one of the main problems is often the reduced natural availability of isolated substances, which can complicate both the structural characterization and possible future developments. For these reasons, the study of bioactive marine metabolites should rely on the development of chemical synthesis and synthetic strategies aimed at the preparation of pure compounds and analogs both for structural confirmation and/or for the large-scale preparation necessary for future applications. Moreover, natural products can be a crucial starting point for the preparation of molecules structurally inspired by the latter, opening the path to new classes of biologically active compounds with pharmacological potential. This book collects original research articles regarding synthetic strategies for secondary marine metabolites and/or analogs that favor applications of these molecules and/or solve structural challenges common in the field of natural substances.

organic synthesis --- meroterpenoids --- thiazinoquinones --- antiproliferative activity --- G0/G1 cell-cycle arrest --- cytostatic --- solid tumor cell lines --- alkylglycerol (AKG) --- ricinoleic acid (RA) --- antimicrobial activity --- structure–activity relationship (SAR) studies --- antibiotics (gentamicin --- tetracycline --- ciprofloxacin and ampicillin) --- marine-inspired --- breast cancer --- bis-indoles --- synthesis --- apoptosis --- carbohydrates --- polysaccharides --- semi-synthesis --- sulfation --- glycosylation --- fucose --- fucosylated chondroitin sulfate --- marine natural product --- largazole --- HDAC inhibitors --- modification --- fluoro olefin --- total synthesis --- natural product --- 7-deazapurine nucleoside --- disaccharide nucleoside --- tubercidin --- aureol --- tetracyclic meroterpenoids --- natural products synthesis --- labdane scaffold --- bioactive diterpenes --- sclareolide --- structure-activity relationships --- TRPV4 channel --- amides/esters --- COVID-19 --- SARS-CoV-2 --- lipophilic iminosugars --- polymer-supported triphenyl phosphine --- cholesterol --- antibacterial iminosugars --- n/a --- structure-activity relationship (SAR) studies