Abstract
Topical infection affects nearly one-third of the world's population; it may result from poor sanitation, hygienic conditions and crowded living and working conditions that accelerate the spread of topical infectious diseases. The problems associated with the anti-infective agents are drug resistance and long-term therapy. Secondary metabolites are obtained from plants, microorganisms and animals, but they are metabolized inside the human body. The integration of nanotechnology into secondary metabolites is gaining attention due to their interaction at the subatomic and skin-tissue levels. Hydrogel, liposomes, lipidic nanoparticles, polymeric nanoparticles and metallic nanoparticles are the most suitable carriers for secondary metabolite delivery. Therefore, the present review article extensively discusses the topical applications of nanomedicines for the effective delivery of secondary metabolites.
Papers of special note have been highlighted as: • of interest; •• of considerable interest
References
- 1. . Surgical anatomy of the skin. Surg. (United Kingdom) 40(1), 1–7 (2022).
- 2. . Emerging infectious diseases: a review. Curr. Emerg. Hosp. Med. Rep. 6(3), 86–93 (2018).
- 3. . Putting the burden of skin diseases on the global map. Br. J. Dermatol. 184(2), 189–190 (2021).
- 4. Infectious disease in an era of global change. Nat. Rev. Microbiol. 20(4), 193–205 (2022). • Review that presents information about infectious diseases across the globe.
- 5. . The impact on health urban environments. Environ. Urban 5(2), 87–111 (1993).
- 6. . The effects of climate change on fungal diseases with cutaneous manifestations: a report from the International Society of Dermatology Climate Change Committee. J. Clim. Chang. Heal. 6, 100156 (2022).
- 7. . Newer topical treatments in skin and nail dermatophyte infections. Indian Dermatol. Online J. 9(3), 149 (2018).
- 8. . Challenges in antifungal therapy in diabetes mellitus. J. Clin. Med. 9(9), 1–9 (2020).
- 9. Prevalence of onychomycosis in diabetic patients: a case-control study performed at University Hospital Policlinico in Catania. J. Fungi 8(9), 922 (2022).
- 10. . Tinea unguium and tinea pedis and their correlation with diabetes mellitus in the general population in the Hail Region, Saudi Arabia: a cross-sectional study. Cureus 15(5), e40116 (2023).
- 11. . Vulvovaginitis and diabetes. J. Pak. Med. Assoc. 67(1), 143–145 (2017).
- 12. . Infections and diabetes: risks and mitigation with reference to India. Diabetes Metab. Syndr. Clin. Res. Rev. 14(6), 1889–1894 (2020).
- 13. . Recent issues in varicella-zoster virus latency. Viruses 13(10), (2021).
- 14. . Pathogenesis and virulence of herpes simplex virus. Virulence 12(1), 2670–2702 (2021).
- 15. . Molluscum contagiosum: an update and review of new perspectives in etiology, diagnosis, and treatment. Clin. Cosmet. Investig. Dermatol. 12, 373–381 (2019).
- 16. . Morbillivirus pathogenesis and virus–host interactions. Adv. Virus Re. 100, 75–98 (2018).
- 17. The changing epidemiology of human monkeypox – a potential threat? A systematic review. PLOS Negl. Trop. Dis. 16(2), e0010141 (2022).
- 18. . Human papillomavirus genomics: understanding carcinogenicity. Tumour Virus Res. 15, 200258 (2023).
- 19. . Latency, integration, and reactivation of human herpesvirus-6. Viruses 9(7), 194 (2017).
- 20. . Human parvovirus B19: a review. Acta Virol. 58(3), 199–213 (2014).
- 21. . New chemistries for the control of human head lice, Pediculus humanus capitis: a mini-review. Pestic. Biochem. Physiol. 181, 105013 (2022).
- 22. . Essential oils against Sarcoptes scabiei. Molecules 27(24), (2022).
- 23. . Prevalence of Pediculus humunus capitis, Pediculus humanus corporis, and Pthirus pubis in Al-Kut, Iraq. Arch. Razi Inst. 77(1), 497–501 (2022).
- 24. . Tunga penetrans in a sub-Saharan African desert traveler. Intern. Med. 59(19), 2441 (2020).
- 25. . Bedbugs. Curr. Biol. 29(21), R1118–R1119 (2019).
- 26. Synthetic biology tools for novel secondary metabolite discovery in streptomyces. J. Microbiol. Biotechnol. 29(5), 667–686 (2019). • Presents the biological potential and medical use of secondary metabolites.
- 27. Herbal medicines to the treatment of skin and soft tissue infections: advantages of the multi-targets action. Phytother. Res. 34(1), 94–103 (2020).
- 28. Secondary metabolites in wound healing: a review of their mechanisms of action. Stud. Nat. Prod. Chem. 78, 403–440 (2023).
- 29. SP-303, an antiviral oligomeric proanthocyanidin from the latex of Croton lechleri (Sangre de Drago). Phytomedicine 1(2), 77–106 (1994).
- 30. Overcoming skin barriers through advanced transdermal drug delivery approaches. J. Control. Rel. 351, 361–380 (2022).
- 31. . Topical antimicrobial therapy: current status and challenges. Indian J. Med. Microbiol. 37(3), 299–308 (2019).
- 32. . Nanoparticles and nanofibers for topical drug delivery. J. Control. Rel. 240, 77–92 (2016).
- 33. Topical and transdermal drug delivery: from simple potions to smart technologies. Curr. Drug Deliv. 16(5), 444–460 (2019).
- 34. Antiproliferative and antimicrobial effects of Rosmarinus officinalis L. loaded liposomes. Molecules 27(13), (2022).
- 35. Chitosan-coated PLGA nanoparticles loaded with peganum harmala alkaloids with promising antibacterial and wound healing activities. Nanomaterials (Basel) 11(9), 2438 (2021).
- 36. Exploring the biomedical applications of biosynthesized silver nanoparticles using Perilla frutescens flavonoid extract: antibacterial, antioxidant, and cell toxicity properties against colon cancer cells. Molecules 28(17), 6431 (2023).
- 37. Essential oil and hydrophilic antibiotic co-encapsulation in multiple lipid nanoparticles: proof of concept and in vitro activity against pseudomonas aeruginosa. Antibiotics (Basel) 10(11), 1300 (2021).
- 38. Nanocarriers for skin applications: where do we stand? Angew. Chemie – Int. Ed. 61(3), e202107960 (2022).
- 39. . New insights in topical drug delivery for skin disorders: from a nanotechnological perspective. ACS Omega 8(22), 19145–19167 (2023).
- 40. . The natural functions of secondary metabolites. Adv. Biochem. Eng. Biotechnol. 69, 1–39 (2000).
- 41. Production of secondary metabolites using tissue culture-based biotechnological applications. Front. Plant Sci. 14, 1132555 (2023).
- 42. . Meta-learning approach for bacteria classification and identification of informative genes of the Bacillus megaterium: tomato roots tissue interaction. 3 Biotech. 13(8), 271 (2023).
- 43. . The natural functions of secondary metabolites. Adv. Biochem. Eng. Biotechnol. 69, 1–39 (2000).
- 44. Plant secondary metabolites as defense tools against herbivores for sustainable crop protection. Int. J. Mol. Sci. 23(5), 2690 (2022). •• Presents applications of secondary metabolites.
- 45. . The key role of behaviour in animal camouflage. Biol. Rev. 94(1), 116–134 (2019).
- 46. Melittin, a honeybee venom-derived antimicrobial peptide, may target methicillin-resistant Staphylococcus aureus. Mol. Med. Rep. 12(5), 6483–6490 (2015).
- 47. Phloeodictines A and B: new antibacterial and cytotoxic bicyclic amidinium salts from the new caledonian sponge, Phloeodictyon sp. J. Org. Chem. 57(14), 3832–3835 (1992).
- 48. Dermaseptin-PH: a novel peptide with antimicrobial and anticancer activities from the skin secretion of the south American orange-legged leaf frog, pithecopus (phyllomedusa) hypochondrialis. Molecules 22(10), 1805 (2017).
- 49. Snake cathelicidin from Bungarus fasciatus is a potent peptide antibiotics. PLOS ONE 3(9), e3217 (2008).
- 50. . The manzamine alkaloids. In: Alkaloids: Chemistry and Biology. Cordell GA (Eds). Academic Press, CA, USA (2020).
- 51. . Antimicrobial activity of avarol, a sesquiterpenoid hydroquinone from the marine sponge, dysidea avara. Comp. Biochem. Physiol. Part B Biochem. 71(2), 281–283 (1982).
- 52. . Isolation and characterization of pleurocidin, an antimicrobial peptide in the skin secretions of winter flounder. J. Biol. Chem. 272(18), 12008–12013 (1997).
- 53. Pleurocidin congeners demonstrate activity against Streptococcus and low toxicity on gingival fibroblasts. Arch. Oral Biol. 70, 79–87 (2016).
- 54. Fungicidal effect of pleurocidin by membrane-active mechanism and design of enantiomeric analogue for proteolytic resistance. Biochim. Biophys. Acta Biomembr. 1768(6), 1400–1405 (2007).
- 55. . Design and formulation of a topical hydrogel integrating lemongrass-loaded nanosponges with an enhanced antifungal effect: in vitro/in vivo evaluation. Int. J. Nanomed. 10, 893–902 (2015).
- 56. Dermaseptin, a peptide antibiotic, stimulates microbicidal activities of polymorphonuclear leukocytes. Biochem. Biophys Res. Commun. 247(3), 870–875 (1998).
- 57. Antibacterial properties of dermaseptin S4 derivatives with in vivo activity. Antimicrob. Agents Chemother. 46(3), 689–694 (2002).
- 58. Discovery of two skin-derived dermaseptins and design of a TAT-fusion analogue with broad-spectrum antimicrobial activity and low cytotoxicity on healthy cells. Peer J. 6, e5635 (2018).
- 59. . The biosynthetic diversity of the animal world. J. Biol. Chem. 294(46), 17684–17692 (2019).
- 60. Production of microbial secondary metabolites: regulation by the carbon source. Crit. Rev. Microbiol. 36(2), 146–167 (2010).
- 61. . Antibacterial mode of action of violacein from Chromobacterium violaceum UTM5 against Staphylococcus aureus and methicillin-resistant Staphylococcus aureus (MRSA). Environ. Sci. Pollut. Res. 25(6), 5164–5180 (2018). •• Demonstrates the sources of secondary metabolites from microorganisms.
- 62. . Quorum-sensing effector pyocyanin but not farnesol & acyl homoserine lactone exhibit antibacterial activity. Indian J. Med. Res. 155(1), 73–78 (2022).
- 63. . Antimicrobial activity of Micrococcus luteus cartenoid pigment. Al-Mustansiriyah J. Sci. 28(1), 64–69 (2017).
- 64. . Secondary metabolites and biodiversity of actinomycetes. J. Genet. Eng. Biotechnol. 19(1), 72 (2021).
- 65. Secondary metabolites of actinomycetes and their antibacterial, antifungal and antiviral properties. Polish J. Microbiol. 67(3), 259–272 (2018).
- 66. Effective use of nanocarriers as drug delivery systems for the treatment of selected tumors. Int. J. Nanomed. 12, 7291–7309 (2017).
- 67. . Fungal infections: pathogenesis, antifungals and alternate treatment approaches. Curr. Res. Microb. Sci. 3, 100137 (2022).
- 68. Nanotechnology-based drug delivery systems and herbal medicines: a review. Int. J. Nanomed. 9(1), 1–15 (2013).
- 69. . Nanomedicines to treat skin pathologies with natural molecules. Curr. Pharm. Des. 25(21), 2323–2337 (2019).
- 70. . Trends in drug delivery systems for natural bioactive molecules to treat health disorders: the importance of nano-liposomes. Pharmaceutics 14(12), 2808 (2022).
- 71. . Polyphenols against infectious diseases: controlled release nano-formulations. Eur. J. Pharm. Biopharm. 161, 66–79 (2021).
- 72. Microemulsions and nanoemulsions in skin drug delivery. Bioengineering 9(4), 158 (2022).
- 73. Formulation design of microemulsion for dermal delivery of penciclovir. Int. J. Pharm. 360(1–2), 184–190 (2008).
- 74. . Hydrophilic gels for biological use. Nature 185(4706), 117–118 (1960).
- 75. . Hydrogel: preparation, characterization, and applications: a review. J. Adv. Res. 6(2), 105–121 (2015).
- 76. . Novel hydrogels for topical applications: an updated comprehensive review based on source. Gels 8(3), 174 (2022).
- 77. The effect of particle size on the deposition of solid lipid nanoparticles in different skin layers: a histological study. Adv. Pharm. Bull. 6(1), 31–36 (2016).
- 78. . Solid lipid nanoparticles: production, characterization and applications. Adv. Drug Deliv. Rev. 64(Suppl.), 83–101 (2012).
- 79. In vitro release, ex vivo penetration, and in vivo dermatokinetics of ketoconazole-loaded solid lipid nanoparticles for topical delivery. Drug Deliv. Transl. Res. 12(7), 1659–1683 (2022).
- 80. Nanotechnology-based drug delivery systems as potential for skin application: a review. Curr. Med. Chem. 28(16), 3216–3248 (2020).
- 81. Polymeric nanoparticles as tunable nanocarriers for targeted delivery of drugs to skin tissues for treatment of topical skin diseases. Pharmaceutics 15(2), 657 (2023).
- 82. Natural, synthetic and their combinatorial nanocarriers based drug delivery system in the treatment paradigm for wound healing via dermal targeting. Curr. Pharm. Des. 26(36), 4551–4568 (2020).
- 83. . Green synthesis of guar gum/Ag nanoparticles and their role in peel-off gel for enhanced antibacterial efficiency and optimization using RSM. Int. J. Biol. Macromol. 221, 665–678 (2022).
- 84. . Antimicrobial and antioxidant potentials of biosynthesized colloidal zinc oxide nanoparticles for a fortified cold cream formulation: a potent nanocosmeceutical application. Mater. Sci. Eng. C. 79, 581–589 (2017).
- 85. Comparison between citral and pompia essential oil loaded in phospholipid vesicles for the treatment of skin and mucosal infections. Nanomaterials 10(2), 286 (2020).
- 86. Antioxidant and antimicrobial poly-ϵ-caprolactone nanoparticles loaded with Cymbopogon martinii essential oil. Biocatal. Agric. Biotechnol. 23, 101499 (2020).
- 87. Potential therapeutic application of biophenols-plants secondary metabolites in rheumatoid arthritis. Crit. Rev. Food Sci. Nutr. 63(27), 8900–8918 (2023).
- 88. Pluronic-based mixed polymeric micelles enhance the therapeutic potential of curcumin. AAPS Pharm. Sci. Tech. 19(6), 2719–2739 (2018).
- 89. . Synergic formulation of onion peel quercetin loaded chitosan-cellulose hydrogel with green zinc oxide nanoparticles towards controlled release, biocompatibility, antimicrobial and anticancer activity. Int. J. Biol. Macromol. 132, 784–794 (2019).
- 90. Antimicrobial activities of green synthesized gums-stabilized nanoparticles loaded with flavonoids. Sci. Rep. 9(1), 3122 (2019).
- 91. Green synthesizes and characterization of copper-oxide nanoparticles by Thespesia populnea against skin-infection causing microbes. J. King Saud Univ. Sci. 34(3), 101885 (2022).
- 92. . Nanocurcumin: a promising candidate for therapeutic applications. Front. Pharmacol. 11, 487 (2020).
- 93. Breathable hydrogel dressings containing natural antioxidants for management of skin disorders. J. Biomater. Appl. 33(9), 1265–1276 (2019).
- 94. . Caffeic acid loading wound dressing: physicochemical and biological characterization. Ther. Deliv. 5(10), 1063–1075 (2014).
- 95. Development and evaluation of polyherbal gel for antifungal activity. Int. J. Curr. Pharm. Res. 10(5), 40–43 (2018).
- 96. Microemulsion-based oxyresveratrol for topical treatment of herpes simplex virus (HSV) infection: physicochemical properties and efficacy in cutaneous HSV-1 infection in mice. AAPS Pharm. Sci. Tech. 13(4), 1266–1275 (2012).
- 97. Preparation, characterization, and evaluation of curcumin-graphene oxide complex-loaded liposomes against Staphylococcus aureus in topical disease. ACS Omega 7(48), 43499–43509 (2022). •• Presents the application of curcumin as an antimicrobial application.
- 98. Gelucire-based nanoparticles for curcumin targeting to oral mucosa: preparation, characterization, and antimicrobial activity assessment. J. Pharm. Sci. 104(11), 3913–3924 (2015).
- 99. . Antimicrobial activity of green silver nanoparticles from endophytic fungi isolated from Calotropis procera (Ait) latex. Microbiol. (United Kingdom) 165(9), 967–975 (2019).
- 100. . Acne vulgaris. Lancet 361–372 (2012).
- 101. . Preparation of nanostructured lipid carriers (Nlcs) loading violacein extract for anti-acne products. Key Eng. Mater. 129–136 (2021).
- 102. . Colour me blue: the history and the biotechnological potential of pyocyanin. Molecules 26(4), 927 (2021).
- 103. . Antifungal coating based on pyocyanin nanoparticles (Np-Pyo). Eur. J. Biol. Biotechnol. 3(2), 30–37 (2022).
- 104. Design of polymeric nanoparticles and its applications as drug delivery systems for acne treatment. Drug Dev. Ind. Pharm. 40(3), 409–417 (2014).
- 105. Signal molecules regulate the synthesis of secondary metabolites in the interaction between endophytes and medicinal plants. Processes 11(3), 849 (2023).
- 106. . New insights into protein-DNA binding specificity from hydrogen bond based comparative study. Nucleic Acids Res. 47(21), 11103–11113 (2019).
- 107. Plant secondary metabolites as defense tools against herbivores for sustainable crop protection. Int. J. Mol. Sci. 23(5), 2690 (2022).
- 108. . Molecular modes of action of cytotoxic alkaloids: from DNA intercalation, spindle poisoning, topoisomerase inhibition to apoptosis and multiple drug resistance. Alkaloids Chem. Biol. 64, 1–47 (2007).
- 109. . Plant phenolics: extraction, analysis and their antioxidant and anticancer properties. Molecules 15(10), 7313–7352 (2010).
- 110. . Herb-drug interactions and hepatotoxicity. Curr. Drug Metab. 20(4), 275–282 (2019).
- 111. Biomembrane models and drug-biomembrane interaction studies: involvement in drug design and development. J. Pharm. Bioallied Sci. 3(1), 4–14 (2011).
- 112. Lipophilic permeability efficiency reconciles the opposing roles of lipophilicity in membrane permeability and aqueous solubility. J. Med. Chem. 61(24), 11169–11182 (2018).
- 113. . Metabolic pathway of natural antioxidants, antioxidant enzymes and ROS providence. Antioxidants (Basel) 11(4), 761 (2022).
- 114. Small molecule-capped gold nanoparticles as potent antibacterial agents that target Gram-negative bacteria. J. Am. Chem. Soc. 132(35), 12349–12356 (2010).
- 115. . Gold nanoparticles induce a reactive oxygen species-independent apoptotic pathway in Escherichia coli. Colloids Surf. B Biointerfaces 167, 1–7 (2018).
- 116. . Vancomycin resistance: structure of D-alanine: D-alanine ligase at 2.3 Å resolution. Science (80) 266(5184), 439–443 (1994).
- 117. Aggregation and interaction of cationic nanoparticles on bacterial surfaces. J. Am. Chem. Soc. 134(16), 6920–6923 (2012).
- 118. Size-dependent interactions of lipid-coated gold nanoparticles: developing a better mechanistic understanding through model cell membranes and in vivo toxicity. Int. J. Nanomed. 15, 4091–4104 (2020).
- 119. Antimicrobial nanomaterials for water disinfection and microbial control: potential applications and implications. Water Res. 42(18), 4591–4602 (2008).
- 120. Visible light inactivation of E. coli, cytotoxicity and ROS determination of biochemically capped gold nanoparticles. Microb. Pathog. 107, 419–424 (2017).
- 121. Selective photoinduced antibacterial activity of amoxicillin-coated gold nanoparticles: from one-step synthesis to in vivo cytocompatibility. ACS Omega 3(1), 1220–1230 (2018).
- 122. . Polymer-based nanocapsules for drug delivery. Int. J. Pharm. 385(1–2), 113–142 (2010).
- 123. . The potential advantages of nanoparticle drug delivery systems in chemotherapy of tuberculosis. Am. J. Respir. Crit. Care Med. 172(12), 1487–1490 (2005).
- 124. Understanding biophysicochemical interactions at the nano-bio interface. Nat. Mater. 8(7), 543–557 (2009).
- 125. Nanoparticles – an efficient carrier for drug delivery into the hair follicles. Eur. J. Pharm. Biopharm. 66(2), 159–164 (2007).
- 126. . Nanomaterials toxicity and cell death modalities. J. Drug Deliv. 2012, 1–14 (2012).
- 127. . Mechanism and determinants of nanoparticle penetration through human skin. Nanoscale 3(12), 4989–4999 (2011).
- 128. Challenge in understanding size and shape dependent toxicity of gold nanomaterials in human skin keratinocytes. Chem. Phys. Lett. 463(1–3), 145–149 (2008).
- 129. . Skin permeating nanogel for the cutaneous co-delivery of two anti-inflammatory drugs. Biomaterials 33(5), 1607–1617 (2012).
- 130. . Is using nanosilver mattresses/pillows safe? A review of potential health implications of silver nanoparticles on human health. Environ. Geochem. Health 41(5), 2295–2313 (2019).
- 131. Gold nanoparticle penetration and reduced metabolism in human skin by toluene. Pharm. Res. 28(11), 2931–2944 (2011).
- 132. Specific uptake mechanisms of well-tolerated thermoresponsive polyglycerol-based nanogels in antigen-presenting cells of the skin. Eur. J. Pharm. Biopharm. 116, 155–163 (2017).
- 133. Curcumin loaded chitin nanogels for skin cancer treatment via the transdermal route. Nanoscale 4(1), 239–250 (2012).
- 134. . Biological responses to nanoscale particles. Beilstein J. Nanotechnol. 6(1), 380–382 (2015).
- 135. Effect of surface coating on the toxicity of silver nanomaterials on human skin keratinocytes. Chem. Phys Lett. 487(1–3), 92–96 (2010).
- 136. Development, standardization and testing of a bacterial wound infection model based on ex vivo human skin. PLOS ONE 12(11), e0186946 (2017).