Abstract
Research on natural products has investigated and employed many (bio)technologies to find out plant active fractions and optimize extraction and isolation of molecules looking for innovative clinical therapies for several clinical conditions, as well as immune-related diseases. Indeed, the world incidence and prevalence of autoimmune diseases have increased over the last years, while immune therapy has arisen as a new promising tool for cancer treatment. Also, in the emergence of COVID-19 pandemic, immunomodulation has been proved effective to reduce the “cytokine storm” and avoid worsening the clinical condition of patients in the acute stage of respiratory syndrome. These health issues have also driven the search for new immunomodulatory compounds. In this context, prospective analysis is an important tool to identify the most relevant opportunities and demands in research and development (R&D) of pharmaceutical medicines, including substances able to modulate immune and inflammatory responses. In addition, prospection allows understanding the landscape of immunomodulatory plant-derived drugs and the associated technologies described in patents. This chapter employed the descriptors “Immunomodulator*” and “drug” and “plant” in search strategy to map the technological potential of immunomodulatory herbal drugs, using the software VantagePoint, Cortellis Competitive Intelligence, and Orbit Intelligence, respectively. The results provided quantitative data and technological indicators to drive future strategies for the development of these drugs. In conclusion, the most cited plant species in patents expressing molecules with immunomodulatory properties were Curcuma longa, Moringa oleifera, Remirea maritima, Maytenus ssp., Angelica sp., Fagopyrum esculentum, as well as plants from the families Leguminosae, Rosaceae, Iridaceae, Moraceae, and Amaranthaceae, among others. The main chemical classes implicated in immunomodulation were xanthones, coumarins, flavonoids, and (tri)terpenes. The technological map** also showed that in the year 2002, there was an increased deposit of patents, reaching the highest peak in 2009 with 56 patents. Nowadays, the United States is the country with the biggest number of patents, followed by Canada, Australia, and Korea.
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de Brito Vieira Neto, J., Silva, M.F.S., Marques, L.G.A., Paier, C.R.K., Ferreira, P.M.P., Pessoa, C. (2022). Technological Map** of Plant-Derived Immunomodulator Drugs: A Patent-Guided Overview about Species and its Main Compounds. In: Sangwan, N.S., Farag, M.A., Modolo, L.V. (eds) Plants and Phytomolecules for Immunomodulation. Springer, Singapore. https://doi.org/10.1007/978-981-16-8117-2_18
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