Overview
Background
Dr. Amarilla graduated in Bachelor in Science (Biology) at the National University of Asunción, Paraguay in 2003. He obtained his PhD in Immunology at the University of Sao Paulo-Brazil and currently is a research fellow at the School of Chemistry and Molecular Biosciences at UQ. He specializes in molecular virology, immunology and vaccinology and has more than seventeen years of experience studying several medically important viruses that have caused huge epidemics among the human population such as Rotavirus (RV), Dengue virus (DV), Zika virus (ZV), Rocio virus (ROCV), West Nile virus (WNV), Japanese Encephalitis virus (JEV) Influenza A virus (IAV) and Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Dr. Amarilla has a vast experience with reverse genetic system of several positive-strand RNA viruses from five different viral families (Faviviridae, Togaviridae, Caliciviridae, Mesoniviridae and Coronaviridae), enabling the discovery of viral determinants involved in pathogenicity (PMID: 30886357, 34103499, 28317911). He has established several murine models for neurotropic viruses, (PMID: 33414219, 30715407, 29897990). He has since authored and co-authored more than 60 published research articles with over 1000 citations pertaining to the field of virology. In 2008, he was part of the team awarded with the highest scientific merit of Paraguay (National Prize for Science) in recognition of his outstanding contribution to the public health for the Paraguayan population on rotavirus epidemiology and evolution. At his current position, he is part of the team that developed a vaccine candidate for SARS-CoV-2, which is currently undergoing human clinical trial 1. He also established a high-throughput virus detection assay which facilitate the study of SARS-CoV-2 biology at UQ and managed investigations to determine the immunological responses required to efficiently neutralize SARS-CoV-2 during the pre-clinical trial stages of the vaccine development (PMID: 33643253).
Availability
- Dr Alberto Amarilla Ortiz is:
- Available for supervision
Qualifications
- Bachelor of Science, unknown
- Masters (Coursework) of Basic and Applied Immunology, Universidade de São Paulo (USP)
- Doctor of Philosophy of Basic and Applied Immunology, Universidade de São Paulo (USP)
Research impacts
Our research program focuses on understanding the precise mechanism behind neurotropic viruses in inducing brain inflammation and the long-term consequences post-exposure, as well as deciphering the viral components that induce neurodegeneration. The program comprises revolutionary molecular biology approaches involving the innovative use of protein design (PMID 33841880; PMID 34750396; PMID: 34714668), monoclonal antibody discovery and characterisation (PMID 33558635, PMID 33414219), and the use of a reverse genetic system to determine the precise structure, functions, and effects of key viral proteins that promote neuronal dysfunction in the CNS, along with relevant application in medicine.
Our research program includes several major contributions:
1- Generated solid evidence in how the spike protein from SARS-CoV-2 may trigger microglia cells activation as well as, provide a possible mechanism in how pre-exposed microglia cells to viral protein could enhance the cells activation in the presence of aggregated pathogenic proteins such as α-Synuclein fibrils (PMID 36316366).
2- Established several murine models for neurotropic viruses, which are essential to study the long-term consequences of virus-induced encephalitis (PMID 33414219, PMID: 30715407, PMID 29897990).
3- Developed a reverse genetic system for several positive sense RNA viruses from five different viral families (Faviviridae, Togaviridae, Caliciviridae, Mesoniviridae and Coronaviridae), enabling the discovery of viral determinants involved in pathogenicity (PMID 30886357, PMID 34103499, PMID 28317911).
4- Created a rapid, sensitive, ultra-high-throughput and reliable viral detection and quantification methodology, which has significantly contributed to accelerated research outcomes (PMID 33643253).
For the past 5 years, our research interests have significantly contributed to fundamental knowledges, which are essential to study the impact of viral encephalitis as a risk factor for developing neurodegenerative disease. This research program will provide valuable information to understand the exact mechanisms of how neurotropic viruses induce neuronal impairment in the CNS, potentially leading to the discovery of new therapeutic targets.
Works
Search Professor Alberto Amarilla Ortiz’s works on UQ eSpace
2024
Journal Article
Equal Maintenance of Anti-SARS-CoV-2 Antibody Levels Induced by Heterologous and Homologous Regimens of the BNT162b2, ChAdOx1, CoronaVac and Ad26.COV2.S Vaccines: A Longitudinal Study Up to the 4th Dose of Booster
do Nascimento, Tatiana A., Nogami, Patricia Y., de Oliveira, Camille F., Neto, Walter F. F., da Silva, Carla P., Ribeiro, Ana Claudia S., de Sousa, Alana W., Freitas, Maria N. O., Chiang, Jannifer O., Silva, Franko A., das Chagas, Liliane L., Carvalho, Valéria L., Azevedo, Raimunda S. S., Vasconcelos, Pedro F. C., Costa, Igor B., Costa, Iran B., Barbagelata, Luana S., das Chagas Junior, Wanderley D., da Penha Junior, Edvaldo T., Soares, Luana S., Viana, Giselle M. R., Amarilla, Alberto A., Modhiran, Naphak, Watterson, Daniel, Casseb, Lívia M. N., Martins, Lívia C. and Henriques, Daniele F. (2024). Equal Maintenance of Anti-SARS-CoV-2 Antibody Levels Induced by Heterologous and Homologous Regimens of the BNT162b2, ChAdOx1, CoronaVac and Ad26.COV2.S Vaccines: A Longitudinal Study Up to the 4th Dose of Booster. Vaccines, 12 (7) 792, 792. doi: 10.3390/vaccines12070792
2024
Journal Article
Amphiphilic heparinoids as potent antiviral agents against SARS-CoV-2
Chhabra, Mohit, Shanthamurthy, Chethan D., Kumar, Nanjudaswamy Vijendra, Mardhekar, Sandhya, Vishweshwara, Sharath S., Wimmer, Norbert, Modhiran, Naphak, Watterson, Daniel, Amarilla, Alberto A., Cha, Jonathan S., Beckett, James R., De Voss, James J., Kayal, Yasmin, Vlodavsky, Israel, Dorsett, Lauren R., Smith, Raymond A. A., Gandhi, Neha S., Kikkeri, Raghavendra and Ferro, Vito (2024). Amphiphilic heparinoids as potent antiviral agents against SARS-CoV-2. Journal of Medicinal Chemistry, 67 (14), 11885-11916. doi: 10.1021/acs.jmedchem.4c00487
2024
Journal Article
Enhancement of cellular immunity following needle-free vaccination of mice with SARS-CoV-2 spike protein
McMillan, Christopher L. D., Wijesundara, Danushka K., Choo, Jovin J. Y., Amarilla, Alberto A., Modhiran, Naphak, Fernando, Germain J. P., Khromykh, Alexander A., Watterson, Daniel, Young, Paul R. and Muller, David A. (2024). Enhancement of cellular immunity following needle-free vaccination of mice with SARS-CoV-2 spike protein. Journal of General Virology, 105 (1) 001947, 1-6. doi: 10.1099/jgv.0.001947
2023
Journal Article
The role of N-glycosylation in spike antigenicity for the SARS-CoV-2 gamma variant
Pegg, Cassandra L., Modhiran, Naphak, Parry, Rhys H., Liang, Benjamin, Amarilla, Alberto A., Khromykh, Alexander A., Burr, Lucy, Young, Paul R., Chappell, Keith, Schulz, Benjamin L. and Watterson, Daniel (2023). The role of N-glycosylation in spike antigenicity for the SARS-CoV-2 gamma variant. Glycobiology, 34 (2) cwad097, 1-13. doi: 10.1093/glycob/cwad097
2023
Journal Article
Insights into senolytic drugs for the treatment of SARS-CoV-2 infection in the brain
Aguado, Julio and Amarilla, Alberto A. (2023). Insights into senolytic drugs for the treatment of SARS-CoV-2 infection in the brain. Nature Aging. doi: 10.1038/s43587-023-00525-8
2023
Journal Article
Senolytic therapy alleviates physiological human brain aging and COVID-19 neuropathology
Aguado, Julio, Amarilla, Alberto A., Taherian Fard, Atefeh, Albornoz, Eduardo A., Tyshkovskiy, Alexander, Schwabenland, Marius, Chaggar, Harman K., Modhiran, Naphak, Gómez-Inclán, Cecilia, Javed, Ibrahim, Baradar, Alireza A., Liang, Benjamin, Peng, Lianli, Dharmaratne, Malindrie, Pietrogrande, Giovanni, Padmanabhan, Pranesh, Freney, Morgan E., Parry, Rhys, Sng, Julian D. J., Isaacs, Ariel, Khromykh, Alexander A., Valenzuela Nieto, Guillermo, Rojas-Fernandez, Alejandro, Davis, Thomas P., Prinz, Marco, Bengsch, Bertram, Gladyshev, Vadim N., Woodruff, Trent M., Mar, Jessica C. ... Wolvetang, Ernst J. (2023). Senolytic therapy alleviates physiological human brain aging and COVID-19 neuropathology. Nature Aging, 3 (12), 1561-1575. doi: 10.1038/s43587-023-00519-6
2023
Journal Article
Long-term safety and immunogenicity of an MF59-adjuvanted spike glycoprotein-clamp vaccine for SARS-CoV-2 in adults aged 18–55 years or ≥56 years: 12-month results from a randomised, double-blind, placebo-controlled, phase 1 trial
Chappell, Keith J., Mordant, Francesca L., Amarilla, Alberto A., Modhiran, Naphak, Liang, Benjamin, Li, Zheyi, Wijesundara, Danushka K., Lackenby, Julia A., Griffin, Paul, Bennet, Jillian K., Hensen, Luca, Zhang, Wuji, Nguyen, Thi H.O., Tran, Mai H., Tapley, Peter, Barnes, James, Reading, Patrick C., Kedzierska, Katherine, Ranasinghe, Charani, Subbarao, Kanta, Watterson, Daniel, Young, Paul R. and Munro, Trent P. (2023). Long-term safety and immunogenicity of an MF59-adjuvanted spike glycoprotein-clamp vaccine for SARS-CoV-2 in adults aged 18–55 years or ≥56 years: 12-month results from a randomised, double-blind, placebo-controlled, phase 1 trial. eBioMedicine, 97 104842. doi: 10.1016/j.ebiom.2023.104842
2023
Journal Article
Establishment of a CPER reverse genetics system for Powassan virus defines attenuating NS1 glycosylation sites and an infectious NS1-GFP11 reporter virus
Conde, Jonas N., Himmler, Grace E., Mladinich, Megan C., Setoh, Yin Xiang, Amarilla, Alberto A., Schutt, William R., Saladino, Nicholas, Gorbunova, Elena E., Salamango, Daniel J., Benach, Jorge, Kim, Hwan Keun and Mackow, Erich R. (2023). Establishment of a CPER reverse genetics system for Powassan virus defines attenuating NS1 glycosylation sites and an infectious NS1-GFP11 reporter virus. mBio, 14 (4). doi: 10.1128/mbio.01388-23
2023
Journal Article
A nanobody recognizes a unique conserved epitope and potently neutralizes against the SARS-CoV-2 omicron variants
Modhiran, Naphak, Lauer, Simon Malte, Amarilla, Alberto A., Hewins, Peter, Lopes van den Broek, Sara Irene, Low, Yu Shang, Thakur, Nazia, Liang, Benjamin, Nieto, Guillermo Valenzuela, Jung, James, Paramitha, Devina, Isaacs, Ariel, Sng, Julian D. J., Song, David, Jørgensen, Jesper Tranekjær, Cheuquemilla, Yorka, Bürger, Jörg, Andersen, Ida Vang, Himelreichs, Johanna, Jara, Ronald, MacLoughlin, Ronan, Miranda-Chacon, Zaray, Chana-Cuevas, Pedro, Kramer, Vasko, Spahn, Christian M. T., Mielke, Thorsten, Khromykh, Alexander A., Munro, Trent, Jones, Martina L. ... Watterson, Daniel (2023). A nanobody recognizes a unique conserved epitope and potently neutralizes against the SARS-CoV-2 omicron variants. iScience, 26 (7) 107085, 107085. doi: 10.1016/j.isci.2023.107085
2023
Journal Article
Inactivation of SARS‐CoV ‐2 infectivity in platelet concentrates or plasma following treatment with ultraviolet C light or with methylene blue combined with visible light
Hobson‐Peters, Jody, Amarilla, Alberto A., Rustanti, Lina, Marks, Denese C., Roulis, Eileen, Khromykh, Alexander A., Modhiran, Naphak, Watterson, Daniel, Reichenberg, Stefan, Tolksdorf, Frank, Sumian, Chryslain, Seltsam, Axel, Gravemann, Ute and Faddy, Helen M. (2023). Inactivation of SARS‐CoV ‐2 infectivity in platelet concentrates or plasma following treatment with ultraviolet C light or with methylene blue combined with visible light. Transfusion, 63 (2), 288-293. doi: 10.1111/trf.17238
2023
Journal Article
SARS-CoV-2 drives NLRP3 inflammasome activation in human microglia through spike protein
Albornoz, Eduardo A., Amarilla, Alberto A., Modhiran, Naphak, Parker, Sandra, Li, Xaria X., Wijesundara, Danushka K., Aguado, Julio, Zamora, Adriana Pliego, McMillan, Christopher L. D., Liang, Benjamin, Peng, Nias Y. G., Sng, Julian D. J., Saima, Fatema Tuj, Fung, Jenny N., Lee, John D., Paramitha, Devina, Parry, Rhys, Avumegah, Michael S., Isaacs, Ariel, Lo, Martin W., Miranda-Chacon, Zaray, Bradshaw, Daniella, Salinas-Rebolledo, Constanza, Rajapakse, Niwanthi W., Wolvetang, Ernst J., Munro, Trent P., Rojas-Fernandez, Alejandro, Young, Paul R., Stacey, Katryn J. ... Woodruff, Trent M. (2023). SARS-CoV-2 drives NLRP3 inflammasome activation in human microglia through spike protein. Molecular Psychiatry, 28 (7), 2878-2893. doi: 10.1038/s41380-022-01831-0
2022
Journal Article
Monoclonal antibodies specific for SARS-CoV-2 spike protein suitable for multiple applications for current variants of concern
Morgan, Mahali S., Yan, Kexin, Le, Thuy T., Johnston, Ryan A., Amarilla, Alberto A., Muller, David A., McMillan, Christopher L. D., Modhiran, Naphak, Watterson, Daniel, Potter, James R., Sng, Julian D. J., Lor, Mary, Paramitha, Devina, Isaacs, Ariel, Khromykh, Alexander A., Hall, Roy A., Suhrbier, Andreas, Rawle, Daniel J. and Hobson-Peters, Jody (2022). Monoclonal antibodies specific for SARS-CoV-2 spike protein suitable for multiple applications for current variants of concern. Viruses, 15 (1) 139, 1-18. doi: 10.3390/v15010139
2022
Journal Article
Zika virus noncoding RNA cooperates with the viral protein NS5 to inhibit STAT1 phosphorylation and facilitate viral pathogenesis
Slonchak, Andrii, Wang, Xiaohui, Aguado, Julio, Sng, Julian D. J., Chaggar, Harman, Freney, Morgan E., Yan, Kexin, Torres, Francisco J., Amarilla, Alberto A., Balea, Rickyle, Setoh, Yin Xiang, Peng, Nias, Watterson, Daniel, Wolvetang, Ernst, Suhrbier, Andreas and Khromykh, Alexander A. (2022). Zika virus noncoding RNA cooperates with the viral protein NS5 to inhibit STAT1 phosphorylation and facilitate viral pathogenesis. Science Advances, 8 (48) eadd8095, eadd8095. doi: 10.1126/sciadv.add8095
2022
Journal Article
Development and evaluation of an 18F-labeled nanobody to target SARS-CoV-2's spike protein
Lopes van den Broek, Sara, García-Vázquez, Rocío, Andersen, Ida Vang, Valenzuela-Nieto, Guillermo, Shalgunov, Vladimir, Battisti, Umberto M., Schwefel, David, Modhiran, Naphak, Kramer, Vasko, Cheuquemilla, Yorka, Jara, Ronald, Salinas-Varas, Constanza, Amarilla, Alberto A., Watterson, Daniel, Rojas-Fernandez, Alejandro and Herth, Matthias M. (2022). Development and evaluation of an 18F-labeled nanobody to target SARS-CoV-2's spike protein. Frontiers in Nuclear Medicine, 2 1033697. doi: 10.3389/fnume.2022.1033697
2022
Journal Article
Skin-patch delivered subunit vaccine induces broadly neutralising antibodies against SARS-CoV-2 variants of concern
McMillan, Christopher L.D., Amarilla, Alberto A., Modhiran, Naphak, Choo, Jovin J.Y., Azuar, Armira, Honeyman, Kate E., Khromykh, Alexander A., Young, Paul R., Watterson, Daniel and Muller, David A. (2022). Skin-patch delivered subunit vaccine induces broadly neutralising antibodies against SARS-CoV-2 variants of concern. Vaccine, 40 (34), 4929-4932. doi: 10.1016/j.vaccine.2022.07.013
2022
Journal Article
SARS-CoV-2 triggers complement activation through interactions with heparan sulfate
Lo, Martin W., Amarilla, Alberto A., Lee, John D., Albornoz, Eduardo A., Modhiran, Naphak, Clark, Richard J., Ferro, Vito, Chhabra, Mohit, Khromykh, Alexander A., Watterson, Daniel and Woodruff, Trent M. (2022). SARS-CoV-2 triggers complement activation through interactions with heparan sulfate. Clinical and Translational Immunology, 11 (8) e1413, e1413. doi: 10.1002/cti2.1413
2022
Journal Article
Nucleocapsid specific diagnostics for the detection of divergent SARS-CoV-2 variants
Isaacs, Ariel, Amarilla, Alberto A., Aguado, Julio, Modhiran, Naphak, Albornoz, Eduardo A., Baradar, Alireza A., McMillan, Christopher L. D., Choo, Jovin J. Y., Idris, Adi, Supramaniam, Aroon, McMillan, Nigel A. J., Muller, David A., Young, Paul R., Woodruff, Trent M., Wolvetang, Ernst J., Chappell, Keith J. and Watterson, Daniel (2022). Nucleocapsid specific diagnostics for the detection of divergent SARS-CoV-2 variants. Frontiers in Immunology, 13 926262, 926262. doi: 10.3389/fimmu.2022.926262
2022
Journal Article
The distinguishing NS5-M114V mutation in American Zika virus isolates has negligible impacts on virus replication and transmission potential
Peng, Nias Y. G., Amarilla, Alberto A., Hugo, Leon E., Modhiran, Naphak, Sng, Julian D. J., Slonchak, Andrii, Watterson, Daniel, Setoh, Yin Xiang and Khromykh, Alexander A. (2022). The distinguishing NS5-M114V mutation in American Zika virus isolates has negligible impacts on virus replication and transmission potential. PLoS Neglected Tropical Diseases, 16 (5) e0010426, 1-17. doi: 10.1371/journal.pntd.0010426
2022
Journal Article
Absence of anti-RBD antibodies in SARS-CoV-2 infected or naive individuals prior to vaccination with CoronaVac leads to short protection of only four months duration
Oliveira, Camille F. de, Neto, Walter F. F., Silva, Carla P. da, Ribeiro, Ana Claudia S., Martins, Lívia C., Sousa, Alana W. de, Freitas, Maria N. O., Chiang, Jannifer O., Silva, Franko A., Santos, Eder B. dos, Medeiros, Daniele B. A., Pinheiro, Gleiciane S., Brandão, Gleiciane F., Carvalho, Valéria L., Azevedo, Raimunda S. S., Vasconcelos, Pedro F. C., Costa, Igor B., Costa, Iran B., Santos, Mirleide C. dos, Soares, Luana S., Bedran, Rayssa L. S., Ferreira, James L., Amarilla, Alberto A., Modhiran, Naphak, McMillan, Christopher L. D., Freney, Morgan E., Muller, David A., Watterson, Daniel, Casseb, Lívia M. N. and Henriques, Daniele F. (2022). Absence of anti-RBD antibodies in SARS-CoV-2 infected or naive individuals prior to vaccination with CoronaVac leads to short protection of only four months duration. Vaccines, 10 (5) 690, 690. doi: 10.3390/vaccines10050690
2022
Journal Article
Peptide-based vaccine against SARS-CoV-2: peptide antigen discovery and screening of adjuvant systems
Shalash, Ahmed O., Azuar, Armira, Madge, Harrison Y. R., Modhiran, Naphak, Amarilla, Alberto A., Liang, Benjamin, Khromykh, Alexander A., Hussein, Waleed M., Chappell, Keith J., Watterson, Daniel, Young, Paul R., Skwarczynski, Mariusz and Toth, Istvan (2022). Peptide-based vaccine against SARS-CoV-2: peptide antigen discovery and screening of adjuvant systems. Pharmaceutics, 14 (4) 856, 856. doi: 10.3390/pharmaceutics14040856
Funding
Past funding
Supervision
Availability
- Dr Alberto Amarilla Ortiz is:
- Available for supervision
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Supervision history
Current supervision
-
Doctor Philosophy
Predicting and preparing for the unfolding evolution of SARS-CoV-2
Associate Advisor
Other advisors: Dr Yousef Alhammad, Professor Alexander Khromykh, Dr Rhys Parry
-
Doctor Philosophy
Broad-spectrum vaccines and therapies for coronaviruses
Associate Advisor
Other advisors: Dr Naphak Modhiran, Professor Daniel Watterson
-
Doctor Philosophy
Predicting and preparing for the unfolding evolution of SARS-CoV-2
Associate Advisor
Other advisors: Dr Rhys Parry, Dr Yousef Alhammad, Professor Alexander Khromykh
Media
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