{"id":20470,"date":"2026-07-16T14:57:42","date_gmt":"2026-07-16T07:57:42","guid":{"rendered":"https:\/\/fkg.ugm.ac.id\/?p=20470"},"modified":"2026-07-16T14:57:44","modified_gmt":"2026-07-16T07:57:44","slug":"antibodi-dari-kuning-telur-ayam-terbukti-lindungi-sel-imun-dari-racun-bakteri-berbahaya","status":"publish","type":"post","link":"https:\/\/fkg.ugm.ac.id\/en\/antibodi-dari-kuning-telur-ayam-terbukti-lindungi-sel-imun-dari-racun-bakteri-berbahaya\/","title":{"rendered":"Antibodies from Chicken Egg Yolks Proven to Protect Immune Cells from Harmful Bacterial Toxins"},"content":{"rendered":"<p class=\"wp-block-paragraph translation-block\">The blue pigment appears harmless under a microscope\u2014but its effects can be deadly. Pyocyanin, a substance secreted by the bacterium Pseudomonas aeruginosa, can kill human immune cells by activating a cell-death pathway involving caspase-3. Surprisingly, a study from the Department of Oral Biology, Faculty of Dentistry, Universitas Gadjah Mada, found that antibodies extracted from ordinary chicken egg yolks could significantly inhibit this cellular damage.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>An Old Bacterium, a New Threat<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph translation-block\">Pseudomonas aeruginosa is no stranger to the medical world. This Gram-negative opportunistic bacterium is known to cause serious nosocomial infections, ranging from urinary and respiratory tract infections to infections of the central nervous system. More concerningly, it is frequently found in patients with cystic fibrosis and has developed resistance to multiple types of antibiotics.<\/p>\n\n\n\n<p class=\"wp-block-paragraph translation-block\">In dentistry, its presence is equally concerning. P. aeruginosa has been detected in dental pulp and periapical lesions, and endodontic treatment failure has frequently been associated with the presence of this bacterium. One of its principal weapons is pyocyanin (PCN), a redox-active blue pigment belonging to the tricyclic phenazine family. PCN not only damages host cells but also suppresses B-cell, T-cell, and macrophage function while inducing neutrophil apoptosis. In short, the bacterium weakens the body's defense system from within.<\/p>\n\n\n\n<p class=\"wp-block-paragraph translation-block\">This is where the real challenge begins. The emergence of multidrug-resistant (MDR) P. aeruginosa has forced scientists to search for therapeutic strategies that go beyond conventional antibiotics.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Chickens as Antibody Factories<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Prof. drg. Heni Susilowati, M.Kes., Ph.D., PBO, together with researchers from FKG UGM, chose a passive immunotherapy approach using immunoglobulin Y (IgY), an antibody naturally found in chicken egg yolks. Why chickens? Because immunized hens transfer specific antibodies into their eggs\u2014a highly efficient and non-invasive biological mechanism.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In this study, five three-month-old Leghorn chickens were immunized subcutaneously with PCN mixed with complete Freund's adjuvant. Two booster doses were administered at two-week intervals. After the final immunization, the eggs were collected and IgY was isolated using a specialized purification kit.\nThe presence of anti-PCN antibodies was confirmed using two methods: an agar gel precipitation test (AGPT), which demonstrated clear precipitation lines, and ELISA, which confirmed substantial concentrations of specific IgY\u2014up to 8.95 \u03bcg\/\u03bcL in the first batch.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The experimental model consisted of Raji cells, a human B-cell line derived from lymphoma, which were treated with various concentrations of PCN to assess its cytotoxic effects. The results were consistent: the higher the PCN concentration, the more cells died in a dose-dependent manner (p &lt; 0.05).<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>When Eggs Protect Immune Cells<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The central question was whether anti-PCN IgY derived from chicken eggs could reverse the damage caused by pyocyanin in human B cells.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The answer was yes\u2014and the effect was statistically significant.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The experiments showed that anti-PCN IgY at concentrations of 28.19 \u03bcg\/mL or higher significantly suppressed the cytotoxic effects of PCN on Raji cells compared with the negative control (p &lt; 0.05). The protective effect was dose-dependent: the higher the IgY concentration, the greater the cell viability that could be preserved.\nMicroscopic observations using acridine orange\/ethidium bromide staining further supported the findings. Cells exposed to the PCN-IgY complex appeared substantially greener, indicating viability, than cells exposed to PCN alone.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>\u201cAntigen-specific IgY antibodies were able to inhibit PCN-induced Raji cell death, suggesting that PCN-specific IgY antibodies may be protective against PCN-induced Raji cell death.\u201d<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The precise mechanism remains incompletely understood. The research team hypothesized that the PCN-IgY complex fails to activate caspase-3 in Raji cells, thereby inhibiting the cell-death pathway. However, this hypothesis requires further investigation.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Between Promise and Unanswered Questions<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Funded by a grant from Indonesia's Ministry of Research, Technology, and Higher Education, this study opens an intriguing new avenue. Chicken-egg-derived IgY, which has traditionally been studied primarily in veterinary contexts, is now showing potential as an immunotherapeutic agent against antibiotic-resistant bacterial infections.<\/p>\n\n\n\n<p class=\"wp-block-paragraph translation-block\">The clinical implications could be significant. If PCN-specific IgY can be further developed as an adjunctive therapy alongside conventional antibiotics, patients with cystic fibrosis, nosocomial infections, and even endodontic treatment failures caused by P. aeruginosa could potentially benefit.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Of course, the road to clinical application remains long. Questions concerning the precise molecular mechanism, effective doses in vivo, and long-term safety remain unanswered. But the findings are already sufficient to demonstrate one thing: solutions to some of the most stubborn bacterial threats may sometimes be found in the most unexpected places\u2014inside an egg.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Source DOI: <a href=\"https:\/\/doi.org\/10.12688\/f1000research.19327.1\">https:\/\/doi.org\/10.12688\/f1000research.19327.1<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Authors: Anny Anggraini; drg. Achmad Zam Zam Aghasy, M.Kes.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Photo: Pexels <\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>","protected":false},"excerpt":{"rendered":"<p>Pigmen biru itu terlihat tidak berbahaya di bawah mikroskop \u2014 tetapi efeknya mematikan. Pyocyanin, zat yang disekresikan oleh bakteri Pseudomonas aeruginosa, mampu membunuh sel-sel imun manusia dengan cara mengaktifkan jalur kematian sel yang disebut caspase 3. Yang mengejutkan, sebuah penelitian dari Departemen Biologi Oral Fakultas Kedokteran Gigi Universitas Gadjah Mada menemukan bahwa antibodi yang diekstrak [&hellip;]<\/p>\n","protected":false},"author":615,"featured_media":20472,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[359,136],"tags":[298,307,289,291,297],"class_list":["post-20470","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-artikel","category-berita-terbaru","tag-sdg-10-mengurangi-ketidaksetaraan","tag-sdg-17-kemitraan-untuk-mencapai-tujuan","tag-sdg-3-kesehatan-dan-kesejahteraan-yang-baik","tag-sdg-4-pendidikan-berkualitas","tag-sdg-9-industri-inovasi-dan-infrastruktur"],"gutentor_comment":0,"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Antibodi dari Kuning Telur Ayam Terbukti Lindungi Sel Imun dari Racun Bakteri Berbahaya - Fakultas Kedokteran Gigi<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/fkg.ugm.ac.id\/en\/antibodi-dari-kuning-telur-ayam-terbukti-lindungi-sel-imun-dari-racun-bakteri-berbahaya\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Antibodi dari Kuning Telur Ayam Terbukti Lindungi Sel Imun dari Racun Bakteri Berbahaya - Fakultas Kedokteran Gigi\" \/>\n<meta property=\"og:description\" content=\"Pigmen biru itu terlihat tidak berbahaya di bawah mikroskop \u2014 tetapi efeknya mematikan. Pyocyanin, zat yang disekresikan oleh bakteri Pseudomonas aeruginosa, mampu membunuh sel-sel imun manusia dengan cara mengaktifkan jalur kematian sel yang disebut caspase 3. Yang mengejutkan, sebuah penelitian dari Departemen Biologi Oral Fakultas Kedokteran Gigi Universitas Gadjah Mada menemukan bahwa antibodi yang diekstrak [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/fkg.ugm.ac.id\/en\/antibodi-dari-kuning-telur-ayam-terbukti-lindungi-sel-imun-dari-racun-bakteri-berbahaya\/\" \/>\n<meta property=\"og:site_name\" content=\"Fakultas Kedokteran Gigi\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/p\/Fakultas-Kedokteran-Gigi-UGM-100075927681679\/\" \/>\n<meta property=\"article:published_time\" content=\"2026-07-16T07:57:42+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-07-16T07:57:44+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/fkg.ugm.ac.id\/wp-content\/uploads\/sites\/30\/2026\/07\/pexels-ron-lach-8858705-scaled.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2560\" \/>\n\t<meta property=\"og:image:height\" content=\"1707\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"achmadzamzamaghasy\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"achmadzamzamaghasy\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/fkg.ugm.ac.id\\\/antibodi-dari-kuning-telur-ayam-terbukti-lindungi-sel-imun-dari-racun-bakteri-berbahaya\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/fkg.ugm.ac.id\\\/antibodi-dari-kuning-telur-ayam-terbukti-lindungi-sel-imun-dari-racun-bakteri-berbahaya\\\/\"},\"author\":{\"name\":\"achmadzamzamaghasy\",\"@id\":\"https:\\\/\\\/fkg.ugm.ac.id\\\/id\\\/#\\\/schema\\\/person\\\/5e527b2939dff262f173d10f32d2638a\"},\"headline\":\"Antibodi dari Kuning Telur Ayam Terbukti Lindungi Sel Imun dari Racun Bakteri Berbahaya\",\"datePublished\":\"2026-07-16T07:57:42+00:00\",\"dateModified\":\"2026-07-16T07:57:44+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/fkg.ugm.ac.id\\\/antibodi-dari-kuning-telur-ayam-terbukti-lindungi-sel-imun-dari-racun-bakteri-berbahaya\\\/\"},\"wordCount\":724,\"publisher\":{\"@id\":\"https:\\\/\\\/fkg.ugm.ac.id\\\/id\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/fkg.ugm.ac.id\\\/antibodi-dari-kuning-telur-ayam-terbukti-lindungi-sel-imun-dari-racun-bakteri-berbahaya\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/fkg.ugm.ac.id\\\/wp-content\\\/uploads\\\/sites\\\/30\\\/2026\\\/07\\\/pexels-ron-lach-8858705-scaled.jpg\",\"keywords\":[\"SDG 10: Mengurangi Ketidaksetaraan\",\"SDG 17: Kemitraan untuk mencapai Tujuan\",\"SDG 3: Kesehatan dan Kesejahteraan yang Baik\",\"SDG 4: Pendidikan Berkualitas\",\"SDG 9: Industri, Inovasi dan Infrastruktur\"],\"articleSection\":[\"Artikel\",\"Berita Terbaru\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/fkg.ugm.ac.id\\\/antibodi-dari-kuning-telur-ayam-terbukti-lindungi-sel-imun-dari-racun-bakteri-berbahaya\\\/\",\"url\":\"https:\\\/\\\/fkg.ugm.ac.id\\\/antibodi-dari-kuning-telur-ayam-terbukti-lindungi-sel-imun-dari-racun-bakteri-berbahaya\\\/\",\"name\":\"Antibodi dari Kuning Telur Ayam Terbukti Lindungi Sel Imun dari Racun Bakteri Berbahaya - 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