<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE root>
<article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Acta Naturae</journal-id><journal-title-group><journal-title xml:lang="en">Acta Naturae</journal-title><trans-title-group xml:lang="ru"><trans-title>Acta Naturae</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2075-8251</issn><publisher><publisher-name xml:lang="en">Acta Naturae Ltd</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">10814</article-id><article-id pub-id-type="doi">10.32607/20758251-2009-1-2-66-72</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Статьи</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Covalent Binding Antibodies Suppress Advanced glycation: On the Innate Tier of Adaptive Immunity</article-title><trans-title-group xml:lang="ru"><trans-title>Covalent Binding Antibodies Suppress Advanced glycation: On the Innate Tier of Adaptive Immunity</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name><surname>Shcheglova</surname><given-names>T</given-names></name><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name><surname>Makker</surname><given-names>S P</given-names></name><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name><surname>Tramontano</surname><given-names>A</given-names></name><email>tramontano@ucdavis.edu</email><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru"></institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Department of Pediatrics, University of California, Davis – School of Medicine Davis</institution></aff><aff><institution xml:lang="ru"></institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2009-09-15" publication-format="electronic"><day>15</day><month>09</month><year>2009</year></pub-date><volume>1</volume><issue>2</issue><issue-title xml:lang="en">NO2 (2009)</issue-title><issue-title xml:lang="ru">№2 (2009)</issue-title><fpage>66</fpage><lpage>72</lpage><history><date date-type="received" iso-8601-date="2020-01-17"><day>17</day><month>01</month><year>2020</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2009, Shcheglova T., Makker S.P., Tramontano A.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2009, Shcheglova T., Makker S.P., Tramontano A.</copyright-statement><copyright-year>2009</copyright-year><copyright-holder xml:lang="en">Shcheglova T., Makker S.P., Tramontano A.</copyright-holder><copyright-holder xml:lang="ru">Shcheglova T., Makker S.P., Tramontano A.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://actanaturae.ru/2075-8251/article/view/10814">https://actanaturae.ru/2075-8251/article/view/10814</self-uri><abstract xml:lang="en"><p/></abstract><trans-abstract xml:lang="ru"><p>Non-enzymatic protein glycation is a source of metabolic stress that contributes to cytotoxicity and tissue damage. Hyperglycemia has been linked to elevation of advanced glycation endproducts, which mediate much of the vascular pathology leading to diabetic complications. Enhanced glycation of immunoglobulins and their accelerated vascular clearance is proposed as a natural mechanism to intercept alternative advanced glycation endproducts, thereby mitigating microvascular disease. We reported that antibodies against the glycoprotein KLH have elevated reactivity for glycopeptides from diabetic serum. These reactions are mediated by covalent binding between antibody light chains and carbonyl groups of glycated peptides. Diabetic animals that were immunized to induce reactive antibodies had attenuated diabetic nephropathy, which correlated with reduced levels of circulating and kidney-bound glycation products. Molecular analysis of antibody glycation revealed the preferential modification of light chains bearing germline-encoded lambda V regions. We previously noted that antibody fragments carrying V regions in the germline configuration are selected from a human Fv library by covalent binding to a reactive organophosphorus ester. These Fv fragments were specifically modified at light chain V region residues, which map to the combining site at the interface between light and heavy chains. These findings suggest that covalent binding is an innate property of antibodies, which may be encoded in the genome for specific physiological purposes. This hypothesis is discussed in context with current knowledge of the natural antibodies that recognize altered self molecules and the catalytic autoantibodies found in autoimmune disease.</p></trans-abstract><kwd-group xml:lang="en"><kwd>Natural autoantibodies</kwd><kwd>covalent binding</kwd><kwd>reactive antibody</kwd><kwd>advanced glycation</kwd><kwd>carbonyl group</kwd><kwd>diabetic complications</kwd><kwd>hydrolytic abzymes</kwd></kwd-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Lerner R.A., Benkovic S.J., Schultz P.G. // At the crossroads of chemistry and immunology: catalytic antibodies. Science. 1991. 252. 659–667.</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Wagner J., Lerner R.A., Barbas C.F., 3rd. Efficient aldolase catalytic antibodies that use the enamine mechanism of natural enzymes.// Science. 1995. 270. 1797–1800.</mixed-citation></ref><ref id="B3"><label>3.</label><mixed-citation>Zhu X., Tanaka F., Hu Y., Heine A., Fuller R., Zhong G., Olson A.J., Lerner R.A., Barbas C.F., 3rd, Wilson I.A.// The origin of enantioselectivity in aldolase antibodies: crystal structure, site-directed mutagenesis, and computational analysis. J Mol Biol. 2004. 343. 1269–1280.</mixed-citation></ref><ref id="B4"><label>4.</label><mixed-citation>Chou M.Y., Fogelstrand L., Hartvigsen K., Hansen L.F., Woelkers D., Shaw P.X., Choi J., Perkmann T., Backhed F., Miller Y.I., et al.// Oxidation-specific epitopes are dominant targets of innate natural antibodies in mice and humans. J Clin Invest. 2009. 119. 1335–1349.</mixed-citation></ref><ref id="B5"><label>5.</label><mixed-citation>Kearney J.F.// Innate-like B cells. Springer Semin Immunopathol. 2005. 26. 377–383.</mixed-citation></ref><ref id="B6"><label>6.</label><mixed-citation>Lutz H.U., Binder C.J., Kaveri S.// Naturally occurring auto-antibodies in homeostasis and disease. Trends Immunol. 2009. 30.43–51.</mixed-citation></ref><ref id="B7"><label>7.</label><mixed-citation>Briles D.E., Forman C., Hudak S., Claflin J.L.// Anti-phosphorylcholine antibodies of the T15 idiotype are optimally protective against Streptococcus pneumoniae. J Exp Med. 1982. 156.1177–1185.</mixed-citation></ref><ref id="B8"><label>8.</label><mixed-citation>Vlassara H., Palace M.R.// Diabetes and advanced glycation endproducts. J Intern Med. 2002. 251.87–101.</mixed-citation></ref><ref id="B9"><label>9.</label><mixed-citation>Brownlee M.// Glycation products and the pathogenesis of diabetic complications. Diabetes Care. 1992. 15. 1835–1843.</mixed-citation></ref><ref id="B10"><label>10.</label><mixed-citation>Cerami A., Vlassara H., Brownlee M.// Role of advanced glycosylation products in complications of diabetes. Diabetes Care. 1988. 11 Suppl 1. 73–79.</mixed-citation></ref><ref id="B11"><label>11.</label><mixed-citation>Saito A., Nagai R., Tanuma A., Hama H., Cho K., Takeda T., Yoshida Y., Toda T., Shimizu F., Horiuchi S., et al.// Role of megalin in endocytosis of advanced glycation end products: implications for a novel protein binding to both megalin and advanced glycation end products. J Am Soc Nephrol. 2003. 14. 1123–1131.</mixed-citation></ref><ref id="B12"><label>12.</label><mixed-citation>Zhu W., Sano H., Nagai R., Fukuhara K., Miyazaki A., Horiuchi S.// The role of galectin-3 in endocytosis of advanced glycation end products and modified low density lipoproteins. Biochem Biophys Res Commun. 2001. 280. 1183–1188.</mixed-citation></ref><ref id="B13"><label>13.</label><mixed-citation>Vlassara H.// The AGE-receptor in the pathogenesis of diabetic complications. Diabetes Metab Res Rev. 2001. 17. 436–443.</mixed-citation></ref><ref id="B14"><label>14.</label><mixed-citation>Pricci F., Leto G., Amadio L., Iacobini C., Romeo G., Cordone S., Gradini R., Barsotti P., Liu F.T., Di Mario U., et al.// Role of galectin-3 as a receptor for advanced glycosylation end products. Kidney Int Suppl. 2000. 77. S31–39.</mixed-citation></ref><ref id="B15"><label>15.</label><mixed-citation>Smedsrod B., Melkko J., Araki N., Sano H., Horiuchi S.// Advanced glycation end products are eliminated by scavenger-receptor-mediated endocytosis in hepatic sinusoidal Kupffer and endothelial cells. Biochem J. 1997. 322 ( Pt 2). 567–573.</mixed-citation></ref><ref id="B16"><label>16.</label><mixed-citation>Vasan S., Foiles P.G., Founds H.W.// Therapeutic potential of AGE inhibitors and breakers of AGE protein cross-links. Expert Opin Investig Drugs. 2001. 10. 1977–1987.</mixed-citation></ref><ref id="B17"><label>17.</label><mixed-citation>Bucciarelli L.G., Wendt T., Qu W., Lu Y., Lalla E., Rong L.L., Goova M.T., Moser B., Kislinger T., Lee D.C., et al.// RAGE blockade stabilizes established atherosclerosis in diabetic apolipoprotein E-null mice. Circulation. 202. 106. 2827–2835.</mixed-citation></ref><ref id="B18"><label>18.</label><mixed-citation>Liggins J., Furth A.J.// Role of protein-bound carbonyl groups in the formation of advanced glycation endproducts. Biochim Biophys. 1997. Acta. 1361. 123–130.</mixed-citation></ref><ref id="B19"><label>19.</label><mixed-citation>Soulis-Liparota T., Cooper M., Papazoglou D., Clarke B., Jerums G.// Retardation by aminoguanidine of development of albuminuria, mesangial expansion, and tissue fluorescence in streptozocin-induced diabetic rat. Diabetes. 1991. 40. 1328–1334.</mixed-citation></ref><ref id="B20"><label>20.</label><mixed-citation>Cohen M.P., Sharma K., Jin Y., Hud E., Wu V.Y., Tomaszewski J., Ziyadeh F.N.// Prevention of diabetic nephropathy in db/db mice with glycated albumin antagonists. A novel treatment strategy. J Clin Invest. 1995. 95. 2338–2345.</mixed-citation></ref><ref id="B21"><label>21.</label><mixed-citation>Cohen M.P., Hud E., Wu V.Y.// Amelioration of diabetic nephropathy by treatment with monoclonal antibodies against glycated albumin. Kidney Int. 1994. 45. 1673–1679.</mixed-citation></ref><ref id="B22"><label>22.</label><mixed-citation>Lapolla A., Tonani R., Fedele D., Garbeglio M., Senesi A., Seraglia R., Favretto D., Traldi, P.// Non-enzymatic glycation of IgG: an in vivo study. Horm Metab Res. 2002.34. 260–264.</mixed-citation></ref><ref id="B23"><label>23.</label><mixed-citation>Kennedy D.M., Skillen A.W., Self, C.H.// Glycation of monoclonal antibodies impairs their ability to bind antigen. Clin Exp Immunol. 1994. 98. 245–251.</mixed-citation></ref><ref id="B24"><label>24.</label><mixed-citation>Danze P.M., Tarjoman A., Rousseaux J., Fossati P., Dautrevaux M.// Evidence for an increased glycation of IgG in diabetic patients. Clin Chim Acta. 1987. 166. 143–153.</mixed-citation></ref><ref id="B25"><label>25.</label><mixed-citation>Gugliucci A., Menini T.// Circulating advanced glycation peptides in streptozotocininduced diabetic rats: evidence for preferential modification of IgG light chains. Life Sci. 1998. 62. 2141–2150.</mixed-citation></ref><ref id="B26"><label>26.</label><mixed-citation>Mitsuhashi T., Li Y.M., Fishbane S., Vlassara H.// Depletion of reactive advanced glycation endproducts from diabetic uremic sera using a lysozyme-linked matrix. J Clin Invest. 1997. 100. 847–854.</mixed-citation></ref><ref id="B27"><label>27.</label><mixed-citation>Armentano F., Knight T., Makker S., Tramontano A.// Induction of covalent binding antibodies. Immunol Lett. 2006. 103. 51–57.</mixed-citation></ref><ref id="B28"><label>28.</label><mixed-citation>Shcheglova T., Makker S., Tramontano A.// Reactive immunization suppresses advanced glycation and mitigates diabetic nephropathy. J Am Soc Nephrol. 2009. 20. 1012–1019.</mixed-citation></ref><ref id="B29"><label>29.</label><mixed-citation>Kennedy D.M., Skillen A.W., Self C.H.// Glycation increases the vascular clearance rate of IgG in mice. Clin Exp Immunol. 1993. 94. 447–451.</mixed-citation></ref><ref id="B30"><label>30.</label><mixed-citation>Kowluru A., Kowluru R.A.// Preferential excretion of glycated albumin in C57BL-KsJ mice: effects of diabetes. Experientia. 1992. 48. 486–488.</mixed-citation></ref><ref id="B31"><label>31.</label><mixed-citation>Groop L., Makipernaa A., Stenman S., DeFronzo R.A., Teppo A.M.// Urinary excretion of κ light chains in patients with diabetes mellitus. Kidney Int. 1990. 37. 1120–1125.</mixed-citation></ref><ref id="B32"><label>32.</label><mixed-citation>Hutchison C.A., Harding S., Hewins P., Mead G.P., Townsend J., Bradwell A.R., Cockwell P.// Quantitative assessment of serum and urinary polyclonal free light chains in patients with chronic kidney disease. Clin J Am Soc Nephrol. 2008. 3. 1684–1690.</mixed-citation></ref><ref id="B33"><label>33.</label><mixed-citation>May R.J., Beenhouwer D.O., Scharff M.D.// Antibodies to keyhole limpet hemocyanin cross-react with an epitope on the polysaccharide capsule of Cryptococcus neoformans and other carbohydrates: implications for vaccine development. J Immunol. 2003. 171. 4905–4912.</mixed-citation></ref><ref id="B34"><label>34.</label><mixed-citation>Harris J.R., Markl J.// Keyhole limpet hemocyanin (KLH): a biomedical review. Micron. 1999. 30. 597–623.</mixed-citation></ref><ref id="B35"><label>35.</label><mixed-citation>Reshetnyak A.V., Armentano M.F., Ponomarenko N.A., Vizzuso D., Durova O.M., Ziganshin R., Serebryakova M., Govorun V., Gololobov G., Morse H.C., 3rd, et al. // Routes to covalent catalysis by reactive selection for nascent protein nucleophiles. J Am Chem Soc. 2007. 129. 16175–16182.</mixed-citation></ref><ref id="B36"><label>36.</label><mixed-citation>Griffiths A.D., Williams S.C., Hartley O., Tomlinson I.M., Waterhouse P., Crosby W.L., Kontermann R.E., Jones P.T., Low N.M., Allison T.J., et al.// Isolation of high affinity human antibodies directly from large synthetic repertoires. Embo J. 1994. 13. 3245–3260.</mixed-citation></ref><ref id="B37"><label>37.</label><mixed-citation>Shaw P.X., Goodyear C.S., Chang M.K., Witztum J.L., Silverman G.J.// The autoreactivity of anti-phosphorylcholine antibodies for atherosclerosis-associated neo-antigens and apoptotic cells. J Immunol. 2003. 170. 6151–6157.</mixed-citation></ref><ref id="B38"><label>38.</label><mixed-citation>Quartier P., Potter P.K., Ehrenstein M.R., Walport M.J., Botto M.// Predominant role of IgM-dependent activation of the classical pathway in the clearance of dying cells by murine bone marrow-derived macrophages in vitro. Eur J Immunol. 2005. 35. 252–260.</mixed-citation></ref><ref id="B39"><label>39.</label><mixed-citation>Pasare C., Medzhitov R.// Toll-like receptors: linking innate and adaptive immunity. Adv Exp Med Biol. 2005. 560. 11–18.</mixed-citation></ref><ref id="B40"><label>40.</label><mixed-citation>Binder C.J., Shaw P.X., Chang M.K., Boullier A., Hartvigsen K., Horkko S., Miller Y.I., Woelkers D.A., Corr M., Witztum J.L.// The role of natural antibodies in atherogenesis. J Lipid Res. 2005. 46. 1353–1363.</mixed-citation></ref><ref id="B41"><label>41.</label><mixed-citation>Toyoda K., Nagae R., Akagawa M., Ishino K., Shibata T., Ito S., Shibata N., Yamamoto T., Kobayashi M., Takasaki Y., et al.// Protein-bound 4-hydroxy-2-nonenal: an endogenous triggering antigen of antI-DNA response. J Biol Chem. 2007. 282. 25769–25778.</mixed-citation></ref><ref id="B42"><label>42.</label><mixed-citation>Younis N., Sharma R., Soran H., Charlton-Menys V., Elseweidy M., Durrington P.N. // Glycation as an atherogenic modification of LDL. Curr Opin Lipidol. 2008. 19. 378–384.</mixed-citation></ref><ref id="B43"><label>43.</label><mixed-citation>Akagawa M., Ito S., Toyoda K., Ishii Y., Tatsuda E., Shibata T., Yamaguchi S., Kawai Y., Ishino K., Kishi Y., et al.// Bispecific abs against modified protein and DNA with oxidized lipids. Proc Natl Acad Sci U S A. 2006. 103. 6160–6165.</mixed-citation></ref><ref id="B44"><label>44.</label><mixed-citation>Horiuchi S., Murakami M., Takata K., Morino Y.// Scavenger receptor for aldehydemodified proteins. J. Biol. Chem. 1986. 261. 4962–4966.</mixed-citation></ref><ref id="B45"><label>45.</label><mixed-citation>Zhou Z.H., Tzioufas A.G., Notkins A.L.// Properties and function of polyreactive antibodies and polyreactive antigen-binding B cells. J Autoimmun. 2007. 29. 219–228.</mixed-citation></ref><ref id="B46"><label>46.</label><mixed-citation>Kawarada Y., Miura N., Sugiyama T.// Antibody against single-stranded DNA useful for detecting apoptotic cells recognizes hexadeoxynucleotides with various base sequences. J Biochem. 1998. 123. 492–498.</mixed-citation></ref><ref id="B47"><label>47.</label><mixed-citation>Frankfurt O.S., Robb J.A., Sugarbaker E.V., Villa L.// Monoclonal antibody to singlestranded DNA is a specific and sensitive cellular marker of apoptosis. Exp Cell Res. 1996. 226. 387–397.</mixed-citation></ref><ref id="B48"><label>48.</label><mixed-citation>Shuster A.M., Gololobov G.V., Kvashuk O.A., Bogomolova A.E., Smirnov I.V., Gabibov A.G.// DNA hydrolyzing autoantibodies. Science. 1992. 256. 665–667.</mixed-citation></ref><ref id="B49"><label>49.</label><mixed-citation>Kim Y.R., Kim J.S., Lee S.H., Lee W.R., Sohn J.N., Chung Y.C., Shim H.K., Lee,S.C., Kwon M.H., Kim Y.S.// Heavy and light chain variable single domains of an anti-DNA binding antibody hydrolyze both double- and single-stranded DNAs without sequence specificity. J Biol Chem. 2006. 281. 15287–15295.</mixed-citation></ref><ref id="B50"><label>50.</label><mixed-citation>Gololobov G.V., Chernova E.A., Schourov D.V., Smirnov I.V., Kudelina I.A., Gabibov A.G.// Cleavage of supercoiled plasmid DNA by autoantibody Fab fragment: application of the flow linear dichroism technique. Proc Natl Acad Sci U S A. 1995. 92. 254–257.</mixed-citation></ref><ref id="B51"><label>51.</label><mixed-citation>Gololobov G.V., Rumbley C.A., Rumbley J.N., Schourov D.V., Makarevich O.I., Gabibov A.G., Voss E.W., Jr., Rodkey L.S.// DNA hydrolysis by monoclonal anti-ssDNA autoantibody BV 04-01: origins of catalytic activity. Mol Immunol. 1997. 34. 1083–1093.</mixed-citation></ref><ref id="B52"><label>52.</label><mixed-citation>Wellmann U., Letz M., Herrmann M., Angermuller S., Kalden J.R., Winkler T.H. //The evolution of human anti-double-stranded DNA autoantibodies. Proc Natl Acad Sci U S A. 2005. 102. 9258–9263.</mixed-citation></ref><ref id="B53"><label>53.</label><mixed-citation>Demaison C., Chastagner P., Theze J., Zouali M.// Somatic diversification in the heavy chain variable region genes expressed by human autoantibodies bearing a lupus-associated nephritogenic anti-DNA idiotype. Proc Natl Acad Sci U S A. 1994. 91. 514–518.</mixed-citation></ref><ref id="B54"><label>54.</label><mixed-citation>Harada T., Suzuki N., Mizushima Y., Sakane T.// Usage of a novel class of germ-line Ig variable region gene for cationic anti-DNA autoantibodies in human lupus nephritis and its role for the development of the disease. J Immunol. 1994. 153. 4806–4815.</mixed-citation></ref><ref id="B55"><label>55.</label><mixed-citation>O’Keefe T.L., Datta S.K., Imanishi-Kari T.// Cationic residues in pathogenic anti-DNA autoantibodies arise by mutations of a germ-line gene that belongs to a large VH gene subfamily. Eur J Immunol. 1992. 22. 619–624.</mixed-citation></ref><ref id="B56"><label>56.</label><mixed-citation>Tanner J.J., Komissarov A.A., Deutscher S.L.// Crystal structure of an antigen-binding fragment bound to single-stranded DNA. J Mol Biol. 2001. 314. 807–822.</mixed-citation></ref><ref id="B57"><label>57.</label><mixed-citation>Herron J.N., He X.M., Ballard D.W., Blier P.R., Pace P.E., Bothwell A.L., Voss E.W., Jr., Edmundson A.B.// An autoantibody to single-stranded DNA: comparison of the threedimensional structures of the unliganded Fab and a deoxynucleotide-Fab complex. Proteins. 1991. 11. 159–175.</mixed-citation></ref><ref id="B58"><label>58.</label><mixed-citation>Giusti A.M., Chien N.C., Zack D.J., Shin S.U., Scharff M.D.// Somatic diversification of S107 from an antiphosphocholine to an anti-DNA autoantibody is due to a single base change in its heavy chain variable region. Proc Natl Acad Sci U S A. 1987. 84. 2926–2930.</mixed-citation></ref><ref id="B59"><label>59.</label><mixed-citation>Kieber-Emmons T., von Feldt J.M., Godillot A.P., McCallus D., Srikantan V., Weiner D.B., Williams W.V.// Isolated VH4 heavy chain variable regions bind DNA characterization of a recombinant antibody heavy chain library derived from patient(s) with active SLE. Lupus. 1994. 3. 379–392.</mixed-citation></ref><ref id="B60"><label>60.</label><mixed-citation>Siminovitch K.A., Chen P.P.// The biologic significance of human natural autoimmune responses: relationship to the germline, early immune and malignant B cell variable gene repertoire. Int Rev Immunol. 1990. 5. 265–277.</mixed-citation></ref><ref id="B61"><label>61.</label><mixed-citation>Siminovitch K.A., Misener V., Kwong P.C., Song Q.L., Chen P.P.// A natural autoantibody is encoded by germline heavy and lambda light chain variable region genes without somatic mutation. J Clin Invest. 1989. 84. 1675–1678.</mixed-citation></ref><ref id="B62"><label>62.</label><mixed-citation>Sanz I., Dang H., Takei M., Talal N., Capra J.D.// VH sequence of a human anti-Sm autoantibody. Evidence that autoantibodies can be unmutated copies of germline genes. J Immunol. 1989. 142. 883–887.</mixed-citation></ref><ref id="B63"><label>63.</label><mixed-citation>Planque S., Bangale Y., Song X.T., Karle S., Taguchi H., Poindexter B., Bick R., Edmundson A., Nishiyama Y., Paul S.// Ontogeny of proteolytic immunity: IgM serine proteases. J Biol Chem. 2004. 279. 14024–14032.</mixed-citation></ref><ref id="B64"><label>64.</label><mixed-citation>Matejuk A., Beardall M., Xu Y., Tian Q., Phillips D., Alabyev B., Mannoor K., Chen C./Exclusion of natural autoantibody-producing B cells from IgG memory B cell compartment during T cell-dependent immune responses. J Immunol. 2009. 182. 7634–7643.</mixed-citation></ref><ref id="B65"><label>65.</label><mixed-citation>Brown M., Schumacher M.A., Wiens G.D., Brennan R.G., Rittenberg M.B.// The structural basis of repertoire shift in an immune response to phosphocholine. J Exp Med. 2000. 191. 2101–2112.</mixed-citation></ref><ref id="B66"><label>66.</label><mixed-citation>Tawfik D.S., Chap R., Green B.S., Sela M., Eshhar Z.// Unexpectedly high occurrence of catalytic antibodies in MRL/lpr and SJL mice immunized with a transition-state analog: is there a linkage to autoimmunity- Proc Natl Acad Sci U S A. 1995. 92. 2145–2149.</mixed-citation></ref></ref-list></back></article>
