» Articles » PMID: 38103783

A SMART Method for Isolating Monoclonal Antibodies from Individual Rhesus Macaque Memory B Cells

Overview
Publisher Elsevier
Date 2023 Dec 16
PMID 38103783
Authors
Affiliations
Soon will be listed here.
Abstract

Characterizing antigen-specific B cells is a critical component of vaccine and infectious disease studies in rhesus macaques (RMs). However, it is challenging to capture immunoglobulin variable (IgV) genes from individual RM B cells using 5' multiplex (MTPX) primers in nested PCR reactions. In particular, the diversity within RM IgV gene leader sequences necessitates large 5' MTPX primer sets to amplify IgV genes, decreasing PCR efficiency. To address this problem, we developed a switching mechanism at the 5' ends of the RNA transcript (SMART)-based method for amplifying IgV genes from single RM B cells to capture Ig heavy and light chain pairs. We demonstrate this technique by isolating simian immunodeficiency virus (SIV) envelope-specific antibodies from single-sorted RM memory B cells. This approach has several advantages over existing methods for cloning antibodies from RMs. First, optimized PCR conditions and SMART 5' and 3' rapid amplification of cDNA ends (RACE) reactions generate full-length cDNAs from individual B cells. Second, it appends synthetic primer binding sites to the 5' and 3' ends of cDNA during synthesis, allowing for PCR amplification of low-abundance antibody templates. Third, the nested PCR primer mixes are simplified by employing universal 5' primers, eliminating the need for complex 5' MTPX primer sets. We anticipate this method will enhance the isolation of antibodies from individual RM B cells, supporting the genetic and functional characterization of antigen-specific B cells.

References
1.
Chernyshev M, Kaduk M, Corcoran M, Karlsson Hedestam G . VDJ Gene Usage in IgM Repertoires of Rhesus and Cynomolgus Macaques. Front Immunol. 2022; 12:815680. PMC: 8786739. DOI: 10.3389/fimmu.2021.815680. View

2.
Picelli S, Faridani O, Bjorklund A, Winberg G, Sagasser S, Sandberg R . Full-length RNA-seq from single cells using Smart-seq2. Nat Protoc. 2014; 9(1):171-81. DOI: 10.1038/nprot.2014.006. View

3.
Kulpa D, Topping R, Telesnitsky A . Determination of the site of first strand transfer during Moloney murine leukemia virus reverse transcription and identification of strand transfer-associated reverse transcriptase errors. EMBO J. 1997; 16(4):856-65. PMC: 1169686. DOI: 10.1093/emboj/16.4.856. View

4.
von Boehmer L, Liu C, Ackerman S, Gitlin A, Wang Q, Gazumyan A . Sequencing and cloning of antigen-specific antibodies from mouse memory B cells. Nat Protoc. 2016; 11(10):1908-1923. DOI: 10.1038/nprot.2016.102. View

5.
Kuwata T, Katsumata Y, Takaki K, Miura T, Igarashi T . Isolation of potent neutralizing monoclonal antibodies from an SIV-Infected rhesus macaque by phage display. AIDS Res Hum Retroviruses. 2010; 27(5):487-500. DOI: 10.1089/AID.2010.0191. View