{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,17]],"date-time":"2026-03-17T06:32:53Z","timestamp":1773729173165,"version":"3.50.1"},"reference-count":30,"publisher":"Oxford University Press (OUP)","issue":"1","license":[{"start":{"date-parts":[[2001,4,1]],"date-time":"2001-04-01T00:00:00Z","timestamp":986083200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/journals\/pages\/open_access\/funder_policies\/chorus\/standard_publication_model"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2002,1,12]]},"abstract":"<jats:title>SUMMARY<\/jats:title><jats:p>Studies on immune responses to parasites have been undertaken in filariasis with a view to understand protective immunity, pathogenesis of the disease process and mechanisms of immune deviation. However none of the investigations conducted so far on antibody responses have addressed the issue of immunogenicity of filarial carbohydrate antigens in human lymphatic filariasis. In this communication we report details on relative protein and carbohydrate contents of various developmental stages of filarial parasites and antibody responses to filarial proteins (Fil.Pro) and carbohydrates (Fil.Cho) in different clinical spectrum of human bancroftian filariasis. As expected, antibodies of IgM and IgG2 subclass recognized primarily Fil.Cho while IgG4 filarial antibodies recognized exclusively Fil.Pro. Reactivity of IgG3 to Fil.Cho was similar to that of IgG2 while IgG1 more readily recognized Fil.Pro than Fil.Cho. The IgG2 and IgG3 antibodies to Fil.Cho were found to be significantly more in patients with chronic filarial disease and in endemic normals when compared with microfilariae (mf) carriers while IgG4 antibodies to Fil.Pro were significantly more in mf carriers. The dichotomy in reactivity of filarial IgG2, IgG3 and IgG4 was dependent on active filarial infection as indicated by presence of circulating filarial antigen (CFA). Individuals with CFA were found to possess significantly more IgG4 to Fil.Pro than those without CFA while IgG2 and IgG3 levels to Fil.Cho was significantly more in CFA negative subjects when compared to those with CFA. Although IgG1 reacted more readily with Fil.Pro, unlike IgG4, their levels were significantly more in CFA negative subjects when compared to those with active filarial infection. Absorption of sera with phosphorylcholine (PC) resulted in no significant loss of reactivity to Fil.Cho indicating that most of the anticarbohydrate antibodies were recognizing non-PC determinants in human filariasis. Elevated levels of IgG2 and IgG3 antibodies to Fil.Cho in individuals free of filarial infection indicate a possible role for carbohydrate antigens in induction of protective immunity in human filariasis.<\/jats:p>","DOI":"10.1046\/j.1365-2249.2001.01484.x","type":"journal-article","created":{"date-parts":[[2003,3,11]],"date-time":"2003-03-11T10:26:14Z","timestamp":1047378374000},"page":"54-61","source":"Crossref","is-referenced-by-count":26,"title":["Human bancroftian filariasis \u2013 a role for antibodies to parasite carbohydrates"],"prefix":"10.1093","volume":"124","author":[{"given":"M C","family":"Mohanty","sequence":"first","affiliation":[{"name":"Division of Immunology, &#x2028;Regional Medical Research Centre, ICMR, Bhubaneswar, India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"A K","family":"Satapathy","sequence":"additional","affiliation":[{"name":"Division of Immunology, &#x2028;Regional Medical Research Centre, ICMR, Bhubaneswar, India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"P K","family":"Sahoo","sequence":"additional","affiliation":[{"name":"Division of Immunology, &#x2028;Regional Medical Research Centre, ICMR, Bhubaneswar, India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"B","family":"Ravindran","sequence":"additional","affiliation":[{"name":"Division of Immunology, &#x2028;Regional Medical Research Centre, ICMR, Bhubaneswar, India"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"286","published-online":{"date-parts":[[2002,1,12]]},"reference":[{"key":"2022011305532036100_b1","doi-asserted-by":"crossref","first-page":"797","DOI":"10.1038\/365797a0","article-title":"Immunological modulation and evasion by helminth parasites in human populations","volume":"365","author":"Maizels","year":"1993","journal-title":"Nature"},{"key":"2022011305532036100_b2","doi-asserted-by":"crossref","first-page":"871","DOI":"10.1017\/S0031182000075259","article-title":"Infection and disease in lymphatic filariasis: an immunological perspective","volume":"104","author":"Ottesen","year":"1992","journal-title":"Parasitol"},{"key":"2022011305532036100_b3","doi-asserted-by":"crossref","first-page":"50","DOI":"10.1016\/0169-4758(95)80116-2","article-title":"T cell activation and the balance of antibody isotype in human filariasis","volume":"11","author":"Maizels","year":"1995","journal-title":"Parasitol Today"},{"key":"2022011305532036100_b4","doi-asserted-by":"publisher","first-page":"229","DOI":"10.1016\/s0169-4758(98)01244-7","article-title":"Immune Dynamics in the Pathogenesis of Human Lymphatic Filariasis","volume":"14","author":"Freedman","year":"1998","journal-title":"Parasitol Today"},{"key":"2022011305532036100_b5","doi-asserted-by":"crossref","first-page":"3917","DOI":"10.4049\/jimmunol.145.11.3917","article-title":"B cell responses to paramyosin. 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