Benildo Sousa Cavada

Benildo Sousa Cavada
Born (1953-12-12) 12 December 1953
Pelotas, Rio Grande do Sul, Brazil
Alma materFederal University of Pelotas, Federal University of Ceará, Toulouse III - Paul Sabatier University
Known forStructural studies of plant lectins; legume lectins
AwardsCommander of the National Order of Scientific Merit (2006); Member of the Brazilian Academy of Sciences (2010)
Scientific career
FieldsBiochemistry; Protein Chemistry and Structural Biology
WorkplacesFederal University of Ceará

Benildo Sousa Cavada (born 12 December 1953) is a Brazilian biochemist and professor, who is recognized for his research on plant lectins and structural biology.[1] Cavada is a professor at the Department of Biochemistry and Molecular Biology at the Federal University of Ceará, where he leads the Laboratory of Biologically Active Molecules (BioMol-Lab).[2][3] His research advanced the understanding of plant lectins, particularly their structural diversity and biological functions.[4] It established structural and functional data for an entire family of lectins, namely legume lectins.[5][6] Cavada is a member of the Brazilian Academy of Sciences and a recipient of Brazil's National Order of Scientific Merit.[1][7]

Early life and education

Benildo Sousa Cavada was born on 12 December 1953 in Pelotas, Rio Grande do Sul, Brazil. He completed his primary education at Grupo Escolar Cassiano do Nascimento and his secondary education at Colégio Agrícola Visconde da Graça, both in Pelotas.[2]

In 1976, Cavada earned a degree in Agronomic Engineering from the Federal University of Pelotas. In 1980, he completed a master's degree in Biochemistry at the Federal University of Ceará.[8][9] In 1985, he obtained a Doctorat d'État in Sciences Pharmaceutiques (Biochimie Végétale) from the Toulouse III - Paul Sabatier University, France.[7] He later completed three post-doctoral stays in France funded by CAPES, at the Université des Sciences et Technologies de Lille (2004), and at the Centre de Recherches sur les Macromolécules Végétales (CERMAV) in Grenoble (2007 and 2009).[10]

Academic career

Cavada began his academic career at the Federal University of Ceará, where he has served as a faculty member in the Department of Biochemistry and Molecular Biology since the 1980s and has been promoted to full professor in 2011. Cavada has been a productivity fellow of the National Council for Scientific and Technological Development (CNPq) since 1987, currently at the highest level (1A).[2] His primary institutional contribution has been the creation of the BioMol-Lab (Laboratory of Biologically Active Molecules) in 1991, which he has led continuously since its founding. The laboratory has become a reference center for lectin studies of Brazilian biodiversity, focusing on bioprospection, protein chemistry, structural biology and X-ray crystallography of lectins from Brazilian flora.[11]

From 2009 to 2016, He coordinated the National Institute of Science and Technology for NanoBioStructures and NanoBioMolecular Simulation (INCT NANO(BIO)SIMES), with a focus on interdisciplinary research in nanobiotechnology.[12] Cavada was the founder and first coordinator of the Graduate Program in Biotechnology of Natural Resources at UFC (2013–2015).[2]

Research contributions

Plant lectins and structural biology

Ribbon diagram of the tetrameric structure of Canavalia brasilensis lectin (PDB ID: 1AZD; structure published in 1997), showing the canonical legume lectin quaternary assembly and the bound Ca²⁺ and Mn²⁺ ions.

Cavada’s research is internationally recognized for its focus on plant lectins and their structural and functional diversity. His work has elucidated the purification methods and molecular architecture of numerous legume lectins, particularly those seeds of the Brazilian flora, and explored their biological activities and potential applications in biotechnology and medicine.[13][14]

A landmark achievement was the determination of the crystal structure of Canavalia brasiliensis lectin (ConBr), which revealed distinct quaternary conformations compared to the closely related Concanavalin A (ConA). This structural difference was shown to correlate with unique biological properties, such as differential induction of inflammatory responses and immune cell activation. The study, has been published in FEBS Letters in 1997.[15]

Cavada’s laboratory has pioneered the crystallography of plant lectins in Northeast Brazil, establishing the first protein crystallization facility outside the country’s Southeast and contributing to the decentralization of advanced structural biology research in Brazil.[11]

Functional and applied studies

Beyond structural studies, Cavada has investigated the biological activities of lectins, including their anti-inflammatory, antimicrobial, and antitumor properties.[16] His research has demonstrated the potential of plant lectins as tools for the diagnosis and treatment of cancer, particularly through their ability to recognize specific glycan patterns on tumor cells.[17] Recent studies from his group have highlighted the use of lectins in drug delivery, and as agents with direct antiproliferative effects on cancer cells.[18][19]

Cavada has also contributed to the understanding of lectin-mediated modulation of immune responses, the development of biotechnological applications such as biosensors, and the exploration of lectins from underexplored legume groups, such as Mimosoideae and Caesalpinioideae.[13][14][16]

Selected publications

  • Sanz-Aparicio, J.; Hermoso, J.; Grangeiro, T.B.; Calvete, J.J.; Cavada, B.S. (1997). "The crystal structure of Canavalia brasiliensis lectin suggests a correlation between its quaternary conformation and its distinct biological properties from Concanavalin A". FEBS Letters. 405 (1): 114–118. Bibcode:1997FEBSL.405..114S. doi:10.1016/S0014-5793(97)00137-3. hdl:10261/246795. PMID 9094437.
  • Cavada, B.S.; Barbosa, T.; Arruda, S.; Grangeiro, T.B.; Barral-Netto, M. (2001). "Revisiting proteus: do minor changes in lectin structure matter in biological activity? Lessons from and potential biotechnological uses of the Diocleinae subtribe lectins". Current Protein & Peptide Science. 2 (2): 123–135. doi:10.2174/1389203013381152. PMID 12370020.
  • Cavada, B.S.; Osterne, V.J.S.; Pinto-Junior, V.R.; Nascimento, K.S. (2019). "ConBr, the Lectin from Canavalia brasiliensis Mart. Seeds: Forty Years of Research". Current Protein & Peptide Science. 20 (6): 600–613. doi:10.2174/1389203720666190104123210. PMID 30608039.

Awards and honors

References

  1. 1 2 "Google Scholar". scholar.google.com. Retrieved 2026-04-17.
  2. 1 2 3 4 5 "Benildo Sousa Cavada". Programa de Pós-Graduação em Biotecnologia de Recursos Naturais (in Brazilian Portuguese). Retrieved 2026-04-17.
  3. ↑ Universitários, Divisão de Portais. "Laboratório de Moléculas Biologicamente Ativas promove evento alusivo aos 25 anos". www.ufc.br (in Brazilian Portuguese). Retrieved 2026-04-17.
  4. ↑ Cavada, Benildo S.; Pinto-Junior, Vanir R.; Osterne, Vinicius J. S.; Nascimento, Kyria S. (2018-12-21). "ConA-Like Lectins: High Similarity Proteins as Models to Study Structure/Biological Activities Relationships". International Journal of Molecular Sciences. 20 (1): 30. doi:10.3390/ijms20010030. ISSN 1422-0067. PMC 6337138. PMID 30577614.
  5. ↑ Cavada, B. S.; Barbosa, T.; Arruda, S.; Grangeiro, T. B.; Barral-Netto, M. (2001). "Revisiting proteus: Do Minor Changes in Lectin Structure Matter in Biological Activity? Lessons from and Potential Biotechnological Uses of the Diocleinae Subtribe Lectins". Current Protein & Peptide Science. 2 (2): 123–135. doi:10.2174/1389203013381152. PMID 12370020.
  6. ↑ Cavada, Benildo Sousa; Osterne, Vinicius Jose Silva; Lossio, Claudia Figueiredo; Pinto-Junior, Vanir Reis; Oliveira, Messias Vital; Silva, Mayara Torquato Lima; Leal, Rodrigo Bainy; Nascimento, Kyria Santiago (1 August 2019). "One century of ConA and 40 years of ConBr research: A structural review". International Journal of Biological Macromolecules. 134: 901–911. doi:10.1016/j.ijbiomac.2019.05.100. PMID 31108148.
  7. 1 2 "Benildo Sousa Cavada - ABC - Academia Brasileira de Ciências". www.abc.org.br. Retrieved 2026-04-17.
  8. ↑ "Professor Dr. Benildo Sousa Cavada". Bacharelado em Biotecnologia (in Brazilian Portuguese). Retrieved 2026-04-17.
  9. ↑ Cavada, Benildo Sousa (1980). "Lectinas de Canavalia brasiliensis Mart. isolamento, caracterização parcial e comportamento durante a germinação". Repositório Institucional UFC (in Brazilian Portuguese).
  10. ↑ "Currículo Lattes". buscatextual.cnpq.br. Retrieved 2026-04-17.
  11. 1 2 Cavada, Benildo S.; Nascimento, Kyria S.; Osterne, Vinicius J. S. (2025-06-24). "Revisiting Proteus 2.0: Two Decades of Pioneering Lectin Crystallography at BioMol-Lab in Northeast Brazil". ACS Omega. 10 (24): 25176–25191. doi:10.1021/acsomega.5c03011. ISSN 2470-1343. PMC 12199033. PMID 40584308.
  12. ↑ "Inicial". www.nanobiosimes.ufc.br. Retrieved 2026-04-17.
  13. 1 2 Cavada, Benildo Sousa; Pinto-Junior, Vanir Reis; Osterne, Vinicius Jose Silva; Oliveira, Messias Vital; Lossio, Claudia Figueiredo; Silva, Mayara Torquato Lima; Bari, Alfa Umaro; Lima, Lara Dias; Souza-Filho, Claudio Henrique Dahne; Nascimento, Kyria Santiago (2020). "Comprehensive review on Caelsalpinioideae lectins: From purification to biological activities". International Journal of Biological Macromolecules. 162: 333–348. doi:10.1016/j.ijbiomac.2020.06.161. hdl:1854/LU-8726837. PMID 32574746.
  14. 1 2 Cavada, Benildo Sousa; Osterne, Vinicius Jose Silva; Oliveira, Messias Vital; Pinto-Junior, Vanir Reis; Silva, Mayara Torquato Lima; Bari, Alfa Umaro; Lima, Lara Dias; Lossio, Claudia Figueiredo; Nascimento, Kyria Santiago (2020). "Reviewing Mimosoideae lectins: A group of under explored legume lectins". International Journal of Biological Macromolecules. 154: 159–165. doi:10.1016/j.ijbiomac.2020.03.113. hdl:1854/LU-8726832. PMID 32184140.
  15. ↑ Sanz-Aparicio, Julia; Hermoso, Juan; Grangeiro, Thalles B; Calvete, Juan J; Cavada, Benildo S (1997-03-17). "The crystal structure of Canavalia brasiliensis lectin suggests a correlation between its quaternary conformation and its distinct biological properties from Concanavalin A". FEBS Letters. 405 (1): 114–118. Bibcode:1997FEBSL.405..114S. doi:10.1016/S0014-5793(97)00137-3. hdl:10261/246795. ISSN 0014-5793. PMID 9094437.
  16. 1 2 Cavada, Benildo S.; Pinto-Junior, Vanir R.; Osterne, Vinicius J. S.; Nascimento, Kyria S. (2018-12-21). "ConA-Like Lectins: High Similarity Proteins as Models to Study Structure/Biological Activities Relationships". International Journal of Molecular Sciences. 20 (1): 30. doi:10.3390/ijms20010030. ISSN 1422-0067. PMC 6337138. PMID 30577614.
  17. ↑ Cavada, Benildo Sousa; Oliveira, Messias Vital; Osterne, Vinicius Jose Silva; Pinto-Junior, Vanir Reis; Correia-Neto, Cornevile; Nascimento, Kyria Santiago (2021). "Lectins applied to diagnosis and treatment of prostate cancer and benign hyperplasia: A review". International Journal of Biological Macromolecules. 190: 543–553. doi:10.1016/j.ijbiomac.2021.09.011. PMID 34508719.
  18. ↑ Osterne, Vinicius J.S.; Ervijn, Lien; Oliveira, Messias V.; Pinto-Junior, Vanir R.; Serna, Sonia; Reichardt, Niels C.; Nascimento, Kyria S.; Van Damme, Els J.M.; Cavada, Benildo S. (2026). "Crystal structure, glycan specificity, and induction of cellular stress by the legume lectin DmegA". International Journal of Biological Macromolecules. 358 151795. doi:10.1016/j.ijbiomac.2026.151795. PMID 41932485.
  19. ↑ Osterne, Vinicius J. S.; Verduijn, Joost; Lossio, Claudia F.; Parakhonskiy, Bogdan; Oliveira, Messias V.; Pinto-Junior, Vanir R.; Nascimento, Kyria S.; Skirtach, Andre G.; Van Damme, Els J. M.; Cavada, Benildo S. (2022). "Antiproliferative activity of Dioclea violacea lectin in CaCO3 particles on cancer cells after controlled release". Journal of Materials Science. 57 (19): 8854–8868. Bibcode:2022JMatS..57.8854O. doi:10.1007/s10853-022-07230-8. hdl:1854/LU-8752094. ISSN 0022-2461.
  20. 1 2 importacao (2011-02-04). "Professor cearense é eleito membro da Academia Brasileira de Ciências". Fundação Cearense de Apoio ao Desenvolvimento Científico e Tecnológico (in Brazilian Portuguese). Retrieved 2026-04-18.
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