{"id":24996,"date":"2023-04-22T18:31:00","date_gmt":"2023-04-22T11:31:00","guid":{"rendered":"http:\/\/noithathoaphat.in\/ctv\/?p=24996"},"modified":"2023-04-28T19:47:10","modified_gmt":"2023-04-28T12:47:10","slug":"tong-quan-ve-neutrophils-te-bao-chinh-trong-phan-ung-viem-cap","status":"publish","type":"post","link":"http:\/\/noithathoaphat.in\/ctv\/index.php\/2023\/04\/22\/tong-quan-ve-neutrophils-te-bao-chinh-trong-phan-ung-viem-cap\/","title":{"rendered":"T\u1ed5ng quan v\u1ec1 Neutrophils: T\u1ebf b\u00e0o ch\u00ednh trong ph\u1ea3n \u1ee9ng vi\u00eam c\u1ea5p"},"content":{"rendered":"<p>Neutrophils l\u00e0 lo\u1ea1i t\u1ebf b\u00e0o b\u1ea1ch c\u1ea7u l\u01b0u h\u00e0nh ph\u1ed5 bi\u1ebfn nh\u1ea5t trong c\u01a1 th\u1ec3. Nh\u1eefng t\u1ebf b\u00e0o n\u00e0y \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong ph\u1ea3n \u1ee9ng mi\u1ec5n d\u1ecbch b\u1ea9m sinh v\u00e0 tham gia v\u00e0o giai \u0111o\u1ea1n \u0111\u1ea7u c\u1ee7a vi\u00eam v\u00e0 nhi\u1ec5m tr\u00f9ng. Kh\u1ea3 n\u0103ng di chuy\u1ec3n nhanh ch\u00f3ng \u0111\u1ebfn c\u00e1c \u0111i\u1ec3m nhi\u1ec5m tr\u00f9ng v\u00e0 th\u1ef1c b\u00e0o (phagocytosis) hi\u1ec7u qu\u1ea3 vi khu\u1ea9n khi\u1ebfn ch\u00fang tr\u1edf n\u00ean c\u1ea7n thi\u1ebft trong vi\u1ec7c ch\u1ed1ng l\u1ea1i c\u00e1c vi sinh v\u1eadt.<\/p>\n<h2>1. Gi\u1edbi thi\u1ec7u v\u1ec1 Neutrophils<\/h2>\n<figure style=\"width: 600px\" class=\"wp-caption alignnone\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/nursing.unboundmedicine.com\/nursingcentral\/repview?type=539-141&amp;name=N17\" alt=\"neutrophil, neutrophile | Taber's Medical Dictionary\" width=\"600\" height=\"408\" \/><figcaption class=\"wp-caption-text\">H\u00ecnh d\u1ea1ng Neutrophils tr\u00ean ph\u1ebft m\u00e1u ngo\u1ea1i bi\u00ean<\/figcaption><\/figure>\n<p>Neutrophils (b\u1ea1ch c\u1ea7u h\u1ea1t trung t\u00ednh) l\u00e0 t\u1ebf b\u00e0o b\u1ea1ch c\u1ea7u \u01b0u th\u1ebf trong c\u01a1 th\u1ec3, chi\u1ebfm 50-70% t\u1ed5ng s\u1ed1 l\u01b0\u1ee3ng b\u1ea1ch c\u1ea7u. Nh\u1eefng t\u1ebf b\u00e0o n\u00e0y \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong ph\u1ea3n \u1ee9ng mi\u1ec5n d\u1ecbch b\u1ea9m sinh v\u00e0 tham gia v\u00e0o giai \u0111o\u1ea1n \u0111\u1ea7u c\u1ee7a ph\u1ea3n \u1ee9ng vi\u00eam v\u00e0 nhi\u1ec5m tr\u00f9ng. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd cung c\u1ea5p m\u1ed9t c\u00e1i nh\u00ecn t\u1ed5ng quan v\u1ec1 c\u00e1c t\u00ednh ch\u1ea5t v\u00e0 ch\u1ee9c n\u0103ng c\u1ee7a neutrophils. C\u0169ng nh\u01b0 t\u1ea7m quan tr\u1ecdng c\u1ee7a ch\u00fang trong h\u1ec7 mi\u1ec5n d\u1ecbch c\u1ee7a c\u01a1 th\u1ec3.<\/p>\n<h2>2. T\u00ednh ch\u1ea5t<\/h2>\n<p>Neutrophils l\u00e0 c\u00e1c t\u1ebf b\u00e0o c\u1ea7u v\u1edbi \u0111\u01b0\u1eddng k\u00ednh kho\u1ea3ng 12-15 \u00b5m. T\u00ean g\u1ecdi &#8220;polymorphonuclear leukocytes (PMNs)&#8221; &#8211; &#8220;B\u1ea1ch c\u1ea7u h\u1ea1t \u0111a nh\u00e2n trung t\u00ednh&#8221;, th\u01b0\u1eddng \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 ph\u00e2n bi\u1ec7t neutrophils v\u00e0 t\u1ebf b\u00e0o b\u1ea1ch c\u1ea7u \u0111\u01a1n nh\u00e2n kh\u00f4ng ph\u00e2n thu\u1ef3 kh\u00e1c (macrophages, lymphocytes). Tuy nhi\u00ean, th\u1eadt ch\u1ea5t Neutrophils c\u0169ng l\u00e0 b\u1ea1ch c\u1ea7u \u0111\u01a1n nh\u00e2n, h\u1ea1t nh\u00e2n c\u1ee7a ch\u00fang \u0111\u01b0\u1ee3c ph\u00e2n th\u00e0nh 3-5 \u0111o\u1ea1n v\u1eabn c\u00f2n n\u1ed1i v\u1edbi nhau.<br \/>\nT\u1ebf b\u00e0o ch\u1ea5t c\u1ee7a neutrophils c\u00f3 hai lo\u1ea1i h\u1ea1t v\u00e0 \u0111\u01b0\u1ee3c bao b\u1ecdc b\u1edfi m\u00e0ng t\u1ebf b\u00e0o:<\/p>\n<ul>\n<li><strong>&#8220;H\u1ea1t \u0111\u1eb7c tr\u01b0ng&#8221; (specific granules):<\/strong> Ch\u1ee9a c\u00e1c enzyme nh\u01b0 lysozyme, collagenase v\u00e0 elastase. Lo\u1ea1i h\u1ea1t n\u00e0y kh\u00f4ng b\u1eaft m\u00e0u v\u1edbi thu\u1ed1c nhu\u1ed9m bazo v\u00e0 acid, gi\u00fap ph\u00e2n bi\u1ec7t ch\u00fang v\u1edbi c\u00e1c lo\u1ea1i t\u1ebf b\u00e0o b\u1ea1ch c\u1ea7u kh\u00e1c: basophils (b\u1ea1ch c\u1ea7u \u01b0a bazo) v\u00e0 eosinophils (b\u1ea1ch c\u1ea7u \u01b0a acid).<\/li>\n<li><strong>H\u1ea1t azurophilic (azurophilic granules):\u00a0<\/strong>Lo\u1ea1i h\u1ea1t n\u00e0y b\u1eaft m\u00e0u v\u1edbi thu\u1ed1c nhu\u1ed9m azure A. Ch\u1ee9a c\u00e1c nzyme v\u00e0 ch\u1ea5t di\u1ec7t khu\u1ea9n nh\u01b0 myeloperoxidase, defensins v\u00e0 cathelicidins.<\/li>\n<\/ul>\n<p>Neutrophils \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t trong t\u1ee7y x\u01b0\u01a1ng v\u00e0 \u0111\u01b0\u1ee3c k\u00edch th\u00edch b\u1edfi Granulocyte colony-stimulating factor (G-CSF)\u00a0 &#8211; Y\u1ebfu t\u1ed1 k\u00edch th\u00edch b\u1ea1ch c\u1ea7u h\u1ea1t &#8211; v\u00e0 granulocyte-macrophage colony-stimulating factor (GM-CSF) &#8211; Y\u1ebfu t\u1ed1 k\u00edch th\u00edch b\u1ea1ch c\u1ea7u h\u1ea1t v\u00e0 \u0111\u1ea1i th\u1ef1c b\u00e0o. M\u1ed7i ng\u00e0y, m\u1ed9t ng\u01b0\u1eddi tr\u01b0\u1edfng th\u00e0nh s\u1ea3n xu\u1ea5t h\u01a1n 10<sup>11 <\/sup>neutrophils, m\u1ed7i t\u1ebf b\u00e0o l\u01b0u h\u00e0nh trong m\u00e1u trong v\u00e0i gi\u1edd ho\u1eb7c t\u1ed1i \u0111a 5 ng\u00e0y tr\u01b0\u1edbc khi ch\u1ebft. Neutrophils c\u00f3 th\u1ec3 di chuy\u1ec3n nhanh ch\u00f3ng \u0111\u1ebfn c\u00e1c v\u1ecb tr\u00ed nhi\u1ec5m tr\u00f9ng sau khi vi khu\u1ea9n x\u00e2m nh\u1eadp, v\u00e0 sau khi v\u00e0o m\u00f4, ch\u00fang ch\u1ec9 ho\u1ea1t \u0111\u1ed9ng trong 1 \u0111\u1ebfn 2 ng\u00e0y tr\u01b0\u1edbc khi ch\u1ebft.<\/p>\n<h2>3. Ch\u1ee9c n\u0103ng<\/h2>\n<p>Ch\u1ee9c n\u0103ng ch\u00ednh c\u1ee7a t\u1ebf b\u00e0o b\u1ea1ch c\u1ea7u trung t\u00ednh l\u00e0 qu\u00e1 tr\u00ecnh th\u1ef1c b\u00e0o (phagocytosis), qu\u00e1 tr\u00ecnh m\u00e0 ch\u00fang &#8220;nu\u1ed1t ch\u1eedng&#8221; v\u00e0 ti\u00eau di\u1ec7t vi khu\u1ea9n, n\u1ea5m v\u00e0 virus. Neutrophils \u0111\u1eb7c bi\u1ec7t hi\u1ec7u qu\u1ea3 trong vi\u1ec7c th\u1ef1c b\u00e0o nh\u1eefng vi sinh v\u1eadt \u0111\u00e3 \u0111\u01b0\u1ee3c \u0111\u00e1nh d\u1ea5u \u0111\u1ec3 ti\u00eau di\u1ec7t b\u1edfi kh\u00e1ng th\u1ec3 ho\u1eb7c c\u00e1c b\u1ed5 th\u1ec3. M\u1ed9t khi \u0111\u00e3 v\u00e0o trong t\u1ebf b\u00e0o, vi sinh v\u1eadt s\u1ebd \u0111\u01b0\u1ee3c bao quanh trong c\u00e1c t\u00fai phagosome, sau \u0111\u00f3 k\u1ebft h\u1ee3p v\u1edbi lysosome t\u1ea1o th\u00e0nh phagolysosome v\u00e0 ti\u00eau di\u1ec7t vi sinh v\u1eadt trong \u0111\u00f3. Neutrophils c\u0169ng c\u00f3 th\u1ec3 b\u00e0i ti\u1ebft c\u00e1c h\u1ea1t nh\u01b0 cytokine, chemokine v\u00e0 protease, g\u00f3p ph\u1ea7n v\u00e0o vi\u1ec7c ch\u1ed1ng vi\u00eam, b\u1ea3o v\u1ec7 h\u1ec7 mi\u1ec5n d\u1ecbch c\u01a1 th\u1ec3 ng\u01b0\u1eddi.<\/p>\n<p>Ngo\u00e0i qu\u00e1 tr\u00ecnh th\u1ef1c b\u00e0o, Neutrophils c\u0169ng c\u00f3 th\u1ec3 ph\u00f3ng ra \u201cc\u00e1c b\u1eaby b\u1ea1ch c\u1ea7u trung t\u00ednh ngo\u1ea1i b\u00e0o\u201d\u00a0 (NETs). C\u1ea5u tr\u00fac n\u00e0y bao g\u1ed3m v\u1eadt li\u1ec7u di truy\u1ec1n v\u00e0 protein kh\u00e1ng khu\u1ea9n c\u00f3 th\u1ec3 l\u00e0m t\u00ea li\u1ec7t v\u00e0 ti\u00eau di\u1ec7t c\u00e1c vi sinh v\u1eadt. Tuy nhi\u00ean, NETs c\u0169ng c\u00f3 th\u1ec3 g\u00f3p ph\u1ea7n v\u00e0o t\u1ed5n th\u01b0\u01a1ng m\u00f4 v\u00e0 vi\u00eam nhi\u1ec5m trong m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p.<\/p>\n<h2>4. S\u1ef1 di chuy\u1ec3n c\u1ee7a Neutrophils trong ph\u1ea3n \u1ee9ng vi\u00eam<\/h2>\n<p>Sau khi tr\u01b0\u1edfng th\u00e0nh trong t\u1ee7y x\u01b0\u01a1ng, neutrophils v\u00e0 monocytes v\u00e0o m\u00e1u v\u00e0 l\u01b0u th\u00f4ng kh\u1eafp c\u01a1 th\u1ec3. Ch\u1ee9c n\u0103ng ch\u00ednh c\u1ee7a ch\u00fang, bao g\u1ed3m vi\u1ec7c th\u1ef1c b\u00e0o v\u00e0 ph\u00e1 h\u1ee7y vi sinh v\u00e2t v\u00e0 t\u1ebf b\u00e0o m\u00f4 ch\u1ebft.<\/p>\n<p>Neutrophils v\u00e0 monocytes trong m\u00e1u \u0111\u1ec3 \u0111\u1ebfn \u0111\u01b0\u1ee3c c\u00e1c \u0111i\u1ec3m m\u00f4 nhi\u1ec5m tr\u00f9ng v\u00e0 t\u1ed5n th\u01b0\u01a1ng l\u00e0 m\u1ed9t qu\u00e1 tr\u00ecnh g\u1ed3m nhi\u1ec1u b\u01b0\u1edbc ph\u1ee5 thu\u1ed9c v\u00e0o selectin, integrin v\u00e0 chemokine. Neutrophils th\u01b0\u1eddng l\u00e0 lo\u1ea1i t\u1ebf b\u00e0o b\u1ea1ch c\u1ea7u s\u1ed1 l\u01b0\u1ee3ng nhi\u1ec1u nh\u1ea5t t\u00edch t\u1ee5 t\u1ea1i v\u1ecb tr\u00ed nhi\u00eam tr\u00f9ng hay m\u00f4 t\u1ed5n th\u01b0\u01a1ng trong v\u00f2ng 24 \u0111\u1ebfn 48 gi\u1edd v\u00e0 sau \u0111\u00f3 \u0111\u01b0\u1ee3c thay th\u1ebf b\u1edfi monocytes. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 ph\u1ea3n \u00e1nh vi\u1ec7c c\u00f3 nhi\u1ec1u neutrophils h\u01a1n trong m\u00e1u, ch\u00fang ph\u1ea3n \u1ee9ng nhanh h\u01a1n v\u1edbi chemokine so v\u1edbi monocytes ho\u1eb7c c\u00e1c t\u1ebf b\u00e0o b\u1ea1ch c\u1ea7u kh\u00e1c. Sau khi v\u00e0o c\u00e1c m\u00f4, neutrophils c\u00f3 tu\u1ed5i th\u1ecd ng\u1eafn tr\u01b0\u1edbc khi ch\u1ebft b\u1edfi ch\u1ebft t\u1ebf b\u00e0o theo ch\u01b0\u01a1ng tr\u00ecnh (apoptosis). Trong khi \u0111\u00f3 monocytes s\u1ed1ng l\u00e2u h\u01a1n v\u00e0 c\u00f3 th\u1ec3 sinh s\u1ea3n trong c\u00e1c m\u00f4. Tuy nhi\u00ean, \u1edf m\u1ed9t s\u1ed1 \u0111i\u1ec3m vi\u00eam, ch\u1ec9 c\u00f3 monocytes \u0111\u01b0\u1ee3c tri\u1ec7u t\u1eadp c\u00f2n neutrophils kh\u00f4ng \u0111\u01b0\u1ee3c tri\u1ec7u t\u1eadp. Nh\u1eefng s\u1ef1 di chuy\u1ec3n kh\u00e1c nhau n\u00e0y c\u00f3 th\u1ec3 ph\u1ea3n \u00e1nh s\u1ef1 kh\u00e1c bi\u1ec7t trong vi\u1ec7c t\u01b0\u01a1ng \u0111\u1ed1i v\u1ec1 s\u1ef1 bi\u1ec3u hi\u1ec7n c\u1ee7a ph\u00e2n t\u1eed k\u1ebft d\u00ednh (adhesion molecules) v\u00e0 c\u00e1c th\u1ee5 th\u1ec3 c\u1ee7a chemokine tr\u00ean neutrophils so v\u1edbi monocytes.<\/p>\n<h2>4. K\u1ebft lu\u1eadn<\/h2>\n<p>T\u1ebf b\u00e0o b\u1ea1ch c\u1ea7u trung t\u00ednh l\u00e0 th\u00e0nh ph\u1ea7n quan tr\u1ecdng c\u1ee7a h\u1ec7 mi\u1ec5n d\u1ecbch b\u1ea9m sinh, \u0111\u00f3ng vai tr\u00f2 ch\u1ee7 ch\u1ed1t trong giai \u0111o\u1ea1n \u0111\u1ea7u c\u1ee7a s\u1ef1 vi\u00eam nhi\u1ec5m. Kh\u1ea3 n\u0103ng di chuy\u1ec3n nhanh ch\u00f3ng \u0111\u1ebfn c\u00e1c \u0111i\u1ec3m nhi\u1ec5m tr\u00f9ng v\u00e0 th\u1ef1c b\u00e0i hi\u1ec7u qu\u1ea3 vi sinh v\u1eadt khi\u1ebfn ch\u00fang tr\u1edf n\u00ean v\u00f4 c\u00f9ng c\u1ea7n thi\u1ebft trong vi\u1ec7c ch\u1ed1ng l\u1ea1i c\u00e1c m\u1ea7m b\u1ec7nh. Ngo\u00e0i ra, kh\u1ea3 n\u0103ng b\u00e0i ti\u1ebft cytokine v\u00e0 chemokine c\u1ee7a ch\u00fang g\u00f3p ph\u1ea7n v\u00e0o ph\u1ea3n \u1ee9ng vi\u00eam v\u00e0 t\u0103ng c\u01b0\u1eddng h\u1ec7 mi\u1ec5n d\u1ecbch. Tuy nhi\u00ean, c\u00e1c neutrophils c\u0169ng c\u00f3 th\u1ec3 g\u00f3p ph\u1ea7n v\u00e0o t\u1ed5n th\u01b0\u01a1ng m\u00f4 v\u00e0 vi\u00eam nhi\u1ec5m trong m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p. V\u00ec v\u1eady, hi\u1ec3u r\u00f5 t\u00ednh ch\u1ea5t v\u00e0 ch\u1ee9c n\u0103ng c\u1ee7a ch\u00fang r\u1ea5t quan tr\u1ecdng v\u1edbi chuy\u00ean gia y t\u1ebf \u0111\u1ec3 c\u00f3 th\u1ec3 ch\u1ea9n \u0111o\u00e1n v\u00e0 \u0111i\u1ec1u tr\u1ecb hi\u1ec7u qu\u1ea3 c\u00e1c r\u1ed1i lo\u1ea1n li\u00ean quan \u0111\u1ebfn Neutrophils trong h\u1ec7 mi\u1ec5n d\u1ecbch.<\/p>\n<p>C\u00e1c \u0111\u1ed9c gi\u1ea3 c\u00f3 th\u1ec3 truy c\u1eadp v\u00e0o trang web <a href=\"https:\/\/vinmecdr.com\/\">vinmecdr.com<\/a>, \u0111\u1ec3 tham kh\u1ea3o th\u00eam nh\u1eefng b\u00e0i vi\u1ebft chuy\u00ean s\u00e2u v\u1ec1 Neutrophils v\u00e0 h\u1ec7 mi\u1ec5n d\u1ecbch c\u1ee7a c\u01a1 th\u1ec3 con ng\u01b0\u1eddi.<\/p>\n<p><strong>T\u00e0i li\u1ec7u tham kh\u1ea3o<\/strong><br \/>\nAbul K Abbas, Andrew H. Lichtman, and Shiv Oillai. 2021. Cellular and Molecular Immunology. 10th ed.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Neutrophils l\u00e0 lo\u1ea1i t\u1ebf b\u00e0o b\u1ea1ch c\u1ea7u l\u01b0u h\u00e0nh ph\u1ed5 bi\u1ebfn nh\u1ea5t trong c\u01a1 th\u1ec3. Nh\u1eefng t\u1ebf b\u00e0o n\u00e0y \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong ph\u1ea3n \u1ee9ng mi\u1ec5n d\u1ecbch b\u1ea9m sinh v\u00e0 tham gia v\u00e0o giai \u0111o\u1ea1n \u0111\u1ea7u c\u1ee7a vi\u00eam v\u00e0 nhi\u1ec5m tr\u00f9ng. Kh\u1ea3 n\u0103ng di chuy\u1ec3n nhanh ch\u00f3ng \u0111\u1ebfn c\u00e1c \u0111i\u1ec3m nhi\u1ec5m tr\u00f9ng v\u00e0 [&hellip;]<\/p>\n","protected":false},"author":55,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[73,33],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>T\u1ed5ng quan v\u1ec1 Neutrophils: T\u1ebf b\u00e0o ch\u00ednh trong ph\u1ea3n \u1ee9ng vi\u00eam c\u1ea5p<\/title>\n<meta name=\"description\" content=\"Neutrophils l\u00e0 lo\u1ea1i t\u1ebf b\u00e0o b\u1ea1ch c\u1ea7u ph\u1ed5 bi\u1ebfn nh\u1ea5t trong c\u01a1 th\u1ec3, \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong ph\u1ea3n \u1ee9ng mi\u1ec5n d\u1ecbch b\u1ea9m sinh.\" \/>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" 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