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Atkinson B, Abassi A, Sajadi MM, Tehrani ZR, Le NM, Chen HH, Sausville E, DeVico AL, Lewis GK, Fan X, Heredia A. Replacement of Antiretroviral Therapy with HIV Broadly Neutralizing Antibodies to Maximize the Effectiveness of Chemotherapy in HIV Patients with Lung Cancer. AIDS Res Hum Retroviruses 2023; 39:475-481. [PMID: 37053110 PMCID: PMC10510690 DOI: 10.1089/aid.2022.0181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/14/2023] Open
Abstract
Non-small cell lung cancer (NSCLC) is the most fatal non-AIDS defining cancer in people living with HIV (PWH) on antiretroviral therapy (ART). Treatment of malignancies in PWH requires concomitant cancer therapy and ART, which can lead to potential drug-drug interactions (DDIs) and overlapping toxicities. In this study, we hypothesize that replacement of ART with HIV broadly neutralizing antibodies (bNAbs) during cancer chemotherapy (chemo) may maintain HIV suppression and tumor inhibition while minimizing DDIs and overlapping toxicities. We compared HIV suppression, tumor inhibition, and toxicity between conventional treatment (ART plus chemo) and a new modality (bNAbs plus chemo) in humanized mice. Humanized mice infected with HIVYU2 and xenografted with human NSCLC A549 cells were treated with NSCLC chemo (cisplatin and gemcitabine) and first-line ART (dolutegravir, tenofovir disoproxil difumarate, and emtricitabine) or bNAbs (N49P9.6-FR and PGT 121) at human equivalent drug doses. We monitored plasma HIV RNA, tumor volume, and toxicities over five cycles of chemo. We found that chemo plus ART or bNAbs were equally effective at maintaining suppression of HIV viremia and tumor growth. Comparative analysis showed that mice on ART and chemo had significant reductions in body weight and significant increases in plasma creatinine concentrations compared with mice on bNAbs and chemo, which suggests that a combination of bNAbs and chemo produces less renal toxicity than an ART and chemo combination. These data suggest that bNAb therapy during concomitant chemo may be an improved treatment option over ART for PWH and NSCLC, and possibly other cancers, because bNAbs maintain HIV suppression while minimizing DDIs and toxicities.
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Affiliation(s)
- Ben Atkinson
- Institute of Human Virology, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Abdolrahim Abassi
- Institute of Human Virology, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Mohammad M. Sajadi
- Institute of Human Virology, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | | | - Nhut M. Le
- Institute of Human Virology, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Hegang H. Chen
- Marlene and Stewart Greenebaum Comprehensive Cancer Center, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Edward Sausville
- Marlene and Stewart Greenebaum Comprehensive Cancer Center, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Anthony L. DeVico
- Institute of Human Virology, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - George K. Lewis
- Institute of Human Virology, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Xiaoxuan Fan
- Marlene and Stewart Greenebaum Comprehensive Cancer Center, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Alonso Heredia
- Institute of Human Virology, University of Maryland School of Medicine, Baltimore, Maryland, USA
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Neralkar M, Xu B, Horiya S, Krauss IJ. Large-Scale Synthesis of Man 9GlcNAc 2 High-Mannose Glycan and the Effect of the Glycan Core on Multivalent Recognition by HIV Antibody 2G12. ACS Infect Dis 2022; 8:2232-2241. [PMID: 36278940 DOI: 10.1021/acsinfecdis.2c00442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Access to homogeneous high-mannose glycans in high-mg quantities is necessary for carbohydrate-based HIV vaccine development research. We have used directed evolution to design highly antigenic oligomannose clusters that are recognized in low-nM affinity by HIV antibodies. Herein we report an optimized large-scale synthesis of Man9GlcNAc2 including improved building block synthesis and a fully stereoselective 5 + 6 coupling, yielding 290 mg of glycan. We then use this glycan to study the effect of the GlcNAc2 core on the antigenicity of an evolved 2G12-binding glycopeptide, 10F2.
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Affiliation(s)
- Mahesh Neralkar
- Department of Chemistry, Brandeis University, Waltham, Massachusetts 02454, United States
| | - Bokai Xu
- Department of Chemistry, Brandeis University, Waltham, Massachusetts 02454, United States
| | - Satoru Horiya
- Department of Chemistry, Brandeis University, Waltham, Massachusetts 02454, United States
| | - Isaac J Krauss
- Department of Chemistry, Brandeis University, Waltham, Massachusetts 02454, United States
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Martinez-Navio JM, Fuchs SP, Pantry SN, Lauer WA, Duggan NN, Keele BF, Rakasz EG, Gao G, Lifson JD, Desrosiers RC. Adeno-Associated Virus Delivery of Anti-HIV Monoclonal Antibodies Can Drive Long-Term Virologic Suppression. Immunity 2019; 50:567-575.e5. [PMID: 30850342 PMCID: PMC6457122 DOI: 10.1016/j.immuni.2019.02.005] [Citation(s) in RCA: 87] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Revised: 12/10/2018] [Accepted: 02/08/2019] [Indexed: 01/03/2023]
Abstract
Long-term delivery of anti-HIV monoclonal antibodies (mAbs) using adeno-associated virus (AAV) vectors holds promise for the prevention and treatment of HIV infection. We describe a therapy trial in which four rhesus monkeys were infected with SHIV-AD8 for 86 weeks before receiving the AAV-encoded mAbs 3BNC117, 10-1074, and 10E8. Although anti-drug antibody (ADA) responses restricted mAb delivery, one monkey successfully maintained 50-150 μg/mL of 3BNC117 and 10-1074 for over 2 years. Delivery of these two mAbs to this monkey resulted in an abrupt decline in plasma viremia, which remained undetectable for 38 successive measurements over 3 years. We generated two more examples of virologic suppression using AAV delivery of a cocktail of four mAbs in a 12-monkey study. Our results provide proof of concept for AAV-delivered mAbs to produce a "functional cure." However, they also serve as a warning that ADAs may be a problem for practical application of this approach in humans.
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Affiliation(s)
- José M Martinez-Navio
- Department of Pathology, Miller School of Medicine, University of Miami, Miami, Florida, USA
| | - Sebastian P Fuchs
- Department of Pathology, Miller School of Medicine, University of Miami, Miami, Florida, USA
| | - Shara N Pantry
- Department of Pathology, Miller School of Medicine, University of Miami, Miami, Florida, USA
| | - William A Lauer
- Department of Pathology, Miller School of Medicine, University of Miami, Miami, Florida, USA
| | - Natasha N Duggan
- Department of Pathology, Miller School of Medicine, University of Miami, Miami, Florida, USA
| | - Brandon F Keele
- AIDS and Cancer Virus Program, Frederick National Laboratory for Cancer Research, Frederick, Maryland, USA
| | - Eva G Rakasz
- Wisconsin National Primate Research Center, University of Wisconsin, Madison, WI, USA
| | - Guangping Gao
- Gene Therapy Center, University of Massachusetts Medical School, Worcester, MA, USA
| | - Jeffrey D Lifson
- AIDS and Cancer Virus Program, Frederick National Laboratory for Cancer Research, Frederick, Maryland, USA
| | - Ronald C Desrosiers
- Department of Pathology, Miller School of Medicine, University of Miami, Miami, Florida, USA.
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Abstract
The last 6 years have witnessed an explosion of discoveries at the interface of glycobiology and immunology. Binding of clustered oligosaccharides has turned out to be a very frequent mode by which human antibodies have developed broadly neutralizing activity against HIV. This mini-review will cover many recent developments in the HIV antibody field, as well as emerging data about Dengue broadly neutralizing antibodies.
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Affiliation(s)
- Isaac J Krauss
- Department of Chemistry, Brandeis University, Waltham, MA 02454, USA
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