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Bou Zerdan M, Kassab J, Saba L, Haroun E, Bou Zerdan M, Allam S, Nasr L, Macaron W, Mammadli M, Abou Moussa S, Chaulagain CP. Liquid biopsies and minimal residual disease in lymphoid malignancies. Front Oncol 2023; 13:1173701. [PMID: 37228488 PMCID: PMC10203459 DOI: 10.3389/fonc.2023.1173701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Accepted: 04/21/2023] [Indexed: 05/27/2023] Open
Abstract
Minimal residual disease (MRD) assessment using peripheral blood instead of bone marrow aspirate/biopsy specimen or the biopsy of the cancerous infiltrated by lymphoid malignancies is an emerging technique with enormous interest of research and technological innovation at the current time. In some lymphoid malignancies (particularly ALL), Studies have shown that MRD monitoring of the peripheral blood may be an adequate alternative to frequent BM aspirations. However, additional studies investigating the biology of liquid biopsies in ALL and its potential as an MRD marker in larger patient cohorts in treatment protocols are warranted. Despite the promising data, there are still limitations in liquid biopsies in lymphoid malignancies, such as standardization of the sample collection and processing, determination of timing and duration for liquid biopsy analysis, and definition of the biological characteristics and specificity of the techniques evaluated such as flow cytometry, molecular techniques, and next generation sequencies. The use of liquid biopsy for detection of minimal residual disease in T-cell lymphoma is still experimental but it has made significant progress in multiple myeloma for example. Recent attempt to use artificial intelligence may help simplify the algorithm for testing and may help avoid inter-observer variation and operator dependency in these highly technically demanding testing process.
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Affiliation(s)
- Maroun Bou Zerdan
- Department of Internal Medicine, State University of New York (SUNY) Upstate Medical University, Syracuse, NY, United States
| | - Joseph Kassab
- Cleveland Clinic, Research Institute, Cleveland, OH, United States
| | - Ludovic Saba
- Department of Hematology-Oncology, Myeloma and Amyloidosis Program, Maroone Cancer Center, Cleveland Clinic Florida, Weston, FL, United States
| | - Elio Haroun
- Department of Medicine, State University of New York (SUNY) Upstate Medical University, New York, NY, United States
| | | | - Sabine Allam
- Department of Medicine and Medical Sciences, University of Balamand, Balamand, Lebanon
| | - Lewis Nasr
- University of Texas MD Anderson Cancer Center, Texas, TX, United States
| | - Walid Macaron
- University of Texas MD Anderson Cancer Center, Texas, TX, United States
| | - Mahinbanu Mammadli
- Department of Internal Medicine, State University of New York (SUNY) Upstate Medical University, Syracuse, NY, United States
| | | | - Chakra P. Chaulagain
- Department of Hematology-Oncology, Myeloma and Amyloidosis Program, Maroone Cancer Center, Cleveland Clinic Florida, Weston, FL, United States
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Tumor-reactive antibodies evolve from non-binding and autoreactive precursors. Cell 2022; 185:1208-1222.e21. [PMID: 35305314 DOI: 10.1016/j.cell.2022.02.012] [Citation(s) in RCA: 69] [Impact Index Per Article: 34.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Revised: 12/20/2021] [Accepted: 02/09/2022] [Indexed: 12/27/2022]
Abstract
The tumor microenvironment hosts antibody-secreting cells (ASCs) associated with a favorable prognosis in several types of cancer. Patient-derived antibodies have diagnostic and therapeutic potential; yet, it remains unclear how antibodies gain autoreactivity and target tumors. Here, we found that somatic hypermutations (SHMs) promote antibody antitumor reactivity against surface autoantigens in high-grade serous ovarian carcinoma (HGSOC). Patient-derived tumor cells were frequently coated with IgGs. Intratumoral ASCs in HGSOC were both mutated and clonally expanded and produced tumor-reactive antibodies that targeted MMP14, which is abundantly expressed on the tumor cell surface. The reversion of monoclonal antibodies to their germline configuration revealed two types of classes: one dependent on SHMs for tumor binding and a second with germline-encoded autoreactivity. Thus, tumor-reactive autoantibodies are either naturally occurring or evolve through an antigen-driven selection process. These findings highlight the origin and potential applicability of autoantibodies directed at surface antigens for tumor targeting in cancer patients.
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