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Sapozhnikova KA, Misyurin VA, Ryazantsev DY, Kokin EA, Finashutina YP, Alexeeva AV, Ivanov IA, Kocharovskaya MV, Tikhonova NA, Popova GP, Alferova VA, Ustinov AV, Korshun VA, Brylev VA. Sensitive Immunofluorescent Detection of the PRAME Antigen Using a Practical Antibody Conjugation Approach. Int J Mol Sci 2021; 22:12845. [PMID: 34884647 PMCID: PMC8657778 DOI: 10.3390/ijms222312845] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 11/21/2021] [Accepted: 11/25/2021] [Indexed: 11/17/2022] Open
Abstract
Bioconjugation of antibodies with various payloads has diverse applications across various fields, including drug delivery and targeted imaging techniques. Fluorescent immunoconjugates provide a promising tool for cancer diagnostics due to their high brightness, specificity, stability and target affinity. Fluorescent antibodies are widely used in flow cytometry for fast and sensitive identification and collection of cells expressing the target surface antigen. Nonetheless, current approaches to fluorescent labeling of antibodies most often use random modification, along with a few rather sophisticated site-specific techniques. The aim of our work was to develop a procedure for fluorescent labeling of immunoglobulin G via periodate oxidation of antibody glycans, followed by oxime ligation with fluorescent oxyamines. Here, we report a novel technique based on an in situ oxime ligation of ethoxyethylidene-protected aminooxy compounds with oxidized antibody glycans. The approach is suitable for easy modification of any immunoglobulin G, while ensuring that antigen-binding domains remain intact, thus revealing various possibilities for fluorescent probe design. The technique was used to label an antibody to PRAME, a cancer-testis protein overexpressed in a number of cancers. A 6H8 monoclonal antibody to the PRAME protein was directly modified with protected-oxyamine derivatives of fluorescein-type dyes (FAM, Alexa488, BDP-FL); the stoichiometry of the resulting conjugates was characterized spectroscopically. The immunofluorescent conjugates obtained were applied to the analysis of bone marrow samples from patients with oncohematological diseases and demonstrated high efficiency in flow cytometry quantification. The approach can be applied for the development of various immunofluorescent probes for detection of diagnostic and prognostic markers, which can be useful in anticancer therapy.
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MESH Headings
- Antibodies, Monoclonal/chemistry
- Antibodies, Monoclonal/immunology
- Antigens, Neoplasm/analysis
- Antigens, Neoplasm/immunology
- Bone Marrow/immunology
- Bone Marrow/metabolism
- Bone Marrow/pathology
- Cell Line, Tumor
- Fluorescent Antibody Technique/methods
- Fluorescent Dyes/chemistry
- Humans
- Immunoconjugates/chemistry
- Immunoconjugates/immunology
- Immunoconjugates/metabolism
- Leukemia, Myeloid, Acute/diagnosis
- Leukemia, Myeloid, Acute/immunology
- Leukemia, Myeloid, Acute/metabolism
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Affiliation(s)
- Ksenia A. Sapozhnikova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Miklukho-Maklaya 16/10, 117997 Moscow, Russia; (K.A.S.); (D.Y.R.); (E.A.K.); (I.A.I.); (M.V.K.); (G.P.P.); (V.A.A.); (A.V.U.)
| | - Vsevolod A. Misyurin
- N.N. Blokhin National Medical Research Center of Oncology, Kashirskoye Highway 23, 115478 Moscow, Russia; (V.A.M.); (Y.P.F.)
| | - Dmitry Y. Ryazantsev
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Miklukho-Maklaya 16/10, 117997 Moscow, Russia; (K.A.S.); (D.Y.R.); (E.A.K.); (I.A.I.); (M.V.K.); (G.P.P.); (V.A.A.); (A.V.U.)
| | - Egor A. Kokin
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Miklukho-Maklaya 16/10, 117997 Moscow, Russia; (K.A.S.); (D.Y.R.); (E.A.K.); (I.A.I.); (M.V.K.); (G.P.P.); (V.A.A.); (A.V.U.)
| | - Yulia P. Finashutina
- N.N. Blokhin National Medical Research Center of Oncology, Kashirskoye Highway 23, 115478 Moscow, Russia; (V.A.M.); (Y.P.F.)
| | - Anastasiya V. Alexeeva
- Faculty of General Medicine, Pirogov Russian National Research Medical University, Ostrovityanova 1, 117992 Moscow, Russia;
| | - Igor A. Ivanov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Miklukho-Maklaya 16/10, 117997 Moscow, Russia; (K.A.S.); (D.Y.R.); (E.A.K.); (I.A.I.); (M.V.K.); (G.P.P.); (V.A.A.); (A.V.U.)
| | - Milita V. Kocharovskaya
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Miklukho-Maklaya 16/10, 117997 Moscow, Russia; (K.A.S.); (D.Y.R.); (E.A.K.); (I.A.I.); (M.V.K.); (G.P.P.); (V.A.A.); (A.V.U.)
- Moscow Institute of Physics and Technology, Institutsky Lane 9, 141700 Dolgoprudny, Russia
| | | | - Galina P. Popova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Miklukho-Maklaya 16/10, 117997 Moscow, Russia; (K.A.S.); (D.Y.R.); (E.A.K.); (I.A.I.); (M.V.K.); (G.P.P.); (V.A.A.); (A.V.U.)
| | - Vera A. Alferova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Miklukho-Maklaya 16/10, 117997 Moscow, Russia; (K.A.S.); (D.Y.R.); (E.A.K.); (I.A.I.); (M.V.K.); (G.P.P.); (V.A.A.); (A.V.U.)
- Gause Institute of New Antibiotics, B. Pirogovskaya 11, 119021 Moscow, Russia
| | - Alexey V. Ustinov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Miklukho-Maklaya 16/10, 117997 Moscow, Russia; (K.A.S.); (D.Y.R.); (E.A.K.); (I.A.I.); (M.V.K.); (G.P.P.); (V.A.A.); (A.V.U.)
| | - Vladimir A. Korshun
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Miklukho-Maklaya 16/10, 117997 Moscow, Russia; (K.A.S.); (D.Y.R.); (E.A.K.); (I.A.I.); (M.V.K.); (G.P.P.); (V.A.A.); (A.V.U.)
| | - Vladimir A. Brylev
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Miklukho-Maklaya 16/10, 117997 Moscow, Russia; (K.A.S.); (D.Y.R.); (E.A.K.); (I.A.I.); (M.V.K.); (G.P.P.); (V.A.A.); (A.V.U.)
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Misyurina OY, Chipitsyna EV, Finashutina YP, Lazarev VN, Akopian TA, Savicheva AM, Govorun VM. Mutations in a 23S rRNA gene of Chlamydia trachomatis associated with resistance to macrolides. Antimicrob Agents Chemother 2004; 48:1347-9. [PMID: 15047540 PMCID: PMC375314 DOI: 10.1128/aac.48.4.1347-1349.2004] [Citation(s) in RCA: 67] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
For six clinical isolates of Chlamydia trachomatis, in vitro susceptibility to erythromycin, azithromycin, and josamycin has been determined. Four isolates were resistant to all the antibiotics and had the mutations A2058C and T2611C (Escherichia coli numbering) in the 23S rRNA gene. All the isolates had mixed populations of bacteria that did and did not carry 23S rRNA gene mutations.
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Affiliation(s)
- O Y Misyurina
- Research Institute of Physico-Chemical Medicine, Russian Federation Ministry of Health, Moscow, Russia
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