Nā Nīnau Laʻana a me ke Kūkākūkā: Ka Pane ʻana o ka Palekana a me ka ʻIke ʻana i ke Kino
He pūnaewele paʻakikī o nā ʻōkana, nā keena, a me nā molekala i loko o ke kino ka ʻōnaehana pale e hana pū ana e pale iā mākou mai ka maʻi a me ka maʻi. He mea nui ka hoʻomaopopo ʻana i ka pane ʻana o ka pale a pehea e ʻike ai ke kino i nā mea ʻē i ka biology a me ka lāʻau lapaʻau. Ma kēia ʻatikala, e kūkākūkā mākou i kekahi mau pilikia hoʻohālike e pili ana i ka pane ʻana o ka pale a me ka ʻike ʻana o ke kino, me nā kūkākūkā kikoʻī e kōkua i ka hoʻoikaika ʻana i ko mākou ʻike ʻana i kēia kumuhana.
Nīnau 1: E wehewehe i ka ʻokoʻa ma waena o ka pale kūlohelohe a me ka pale hoʻololi
Kūkākūkā:
ʻO ka pale kūlohelohe a me ka pale adaptive nā ʻāpana nui ʻelua o ka ʻōnaehana pale e hana pū ana e pale i ke kino mai nā pathogens.
– Palekana kūlohelohe:
– Pane wikiwiki: Pane koke i nā maʻi, maʻamau i loko o nā minuke a i ʻole nā hola.
– ʻAʻole kikoʻī: ʻAʻole hoʻokaʻawale i waena o nā ʻano pathogen; hana ma ke ʻano he laina pale mua.
– Nā ʻāpana nui: Nā pale kino (ʻili a me ka mucosa), nā pūnaewele phagocytic (e like me macrophages a me neutrophils), nā pūnaewele pepehi kanaka kūlohelohe, a me nā protein plasma (e like me ka complement).
- Hoʻomanaʻo: ʻAʻohe ona hoʻomanaʻo palekana, no laila ua like ka pane me kēlā me kēia hōʻike ʻana i ka maʻi.
– Palekana Hoʻololi:
– Pane lohi: ʻOi aku ka lōʻihi o ka hoʻāla ʻana (nā lā a i nā pule) ke hiki mua mai ka maʻi.
– Kikoʻī: Pane kikoʻī hou aku i kahi pathogen kikoʻī.
– Nā ʻĀpana Nui: Nā lymphocytes B a me T, a me nā antibodies i hana ʻia e nā pūnaewele B.
- Hoʻomanaʻo: Loaʻa ka hoʻomanaʻo immunological, no laila hiki iā ia ke hāʻawi i kahi pane wikiwiki a ikaika hoʻi i ka hōʻike ʻana ma hope i ka pathogen like.
Hoʻokō kēia mau ʻano palekana ʻelua kekahi i kekahi. Hāʻawi ka palekana kūlohelohe i ka pale mua wikiwiki, ʻoiai ʻo ka palekana adaptive e hāʻawi i ka pale lōʻihi a kikoʻī.
Nīnau 2: He aha nā T-Regulatory Cells a he aha kā lākou kuleana i ka pane ʻana o ka pale kino?
Kūkākūkā:
ʻO nā pūnaewele T-regulatory (Tregs) he subpopulation o nā pūnaewele T e pāʻani ana i kahi kuleana koʻikoʻi i ka mālama ʻana i ka homeostasis immune a me ka pale ʻana i ka autoimmunity. Kōkua lākou i:
– Hoʻoponopono i ka pane ʻana o ka pale ʻana: Hoʻomalu a kāohi nā pūnaewele Tregs i nā pane pale nui loa e hiki ai ke hōʻino i nā ʻiʻo ponoʻī o ke kino.
– Ka mālama ʻana i ka hoʻomanawanui o ka pale ʻana i ka maʻi: Ke pale ʻana i ka ʻōnaehana pale mai ka hoʻouka ʻana i nā ʻāpana a me nā ʻiʻo ponoʻī o ke kino (autoimmunity). Hoʻokō ʻia kēia ma ke kāohi ʻana i ka hana o nā pūnaewele effector T e pane ana i nā antigens o ke kino.
– Kāohi i ka mumū: Hoʻemi nā pūnaewele Tregs i ka mumū ma o ka hana ʻana i nā cytokines anti-inflammatory e like me IL-10 a me TGF-beta.
Ma ka kaohi ʻana i ka pane pale kino, mālama ʻo Tregs i kahi kaulike ma waena o ka detoxification o nā mea haole a me ka pale ʻana i nā ʻiʻo o ke kino.
Nīnau 3: E wehewehe i ke ʻano hana o ka hana Antibody i ke kaua ʻana i nā pathogens
Kūkākūkā:
ʻO nā antibodies he mau protein i hana ʻia e nā cell B, e kaapuni ana i loko o ke koko, a he kuleana koʻikoʻi ko lākou i loko o ka ʻōnaehana pale humoral. Hoʻomaopopo nā antibodies i nā antigens kikoʻī ma luna o ka ʻili o nā pathogens a hoʻāla i nā ʻano hana e hakakā ai i ka maʻi:
– Neutralization: Hiki i nā antibodies ke hoʻopau i nā pathogens ma ka hoʻopili ʻana i nā ʻāpana i hoʻohana ʻia e ka pathogen e komo i loko o ka cell host, no ka laʻana e uhi ana i ka mea loaʻa o ka maʻi virus.
– Opsonization: ʻO nā antibodies e hoʻopili ana i ka ʻili o nā pathogens e hoʻomaʻamaʻa i ka phagocytosis. Loaʻa i nā cell phagocytic, e like me nā macrophages a me nā neutrophils, nā mea loaʻa no ka ʻāpana Fc o nā antibodies, e maʻalahi ai ka ʻike a me ka ʻai ʻana i nā pathogens.
– Hoʻāla ʻana i ka Hoʻopihapiha: Hiki i nā antibodies ke hoʻoulu i ka cascade complement e hopena ai i ka lysis cell target a i ʻole ka hoʻonui ʻana i ka pane pale ma o nā kaʻina hana e like me ka opsonization a me ka chemotaxis.
– Agglutination a me ka Precipitation: Hiki i nā antibodies ke hui pū i nā pathogens hiki ke hoʻoheheʻe ʻia a i ʻole nā antigens i maʻalahi ke ʻike a hoʻopau ʻia e ka ʻōnaehana pale.
Loaʻa i kēlā me kēia papa o ka antibody (IgM, IgG, IgA, IgE, a me IgD) kāna hana a me kona wahi kikoʻī i loko o ke kino, e kōkua ana i ka hoʻolaha ʻana i kahi pane pale kino i hoʻolālā ʻia a kūpono hoʻi.
Nīnau 4: Pehea e hoʻokaʻawale ai ke kino ma waena o nā pūnaewele ponoʻī a me nā pūnaewele ʻaʻole ponoʻī?
Kūkākūkā:
ʻO ke hiki o ke kino ke hoʻokaʻawale ma waena o nā pūnaewele ponoʻī a me nā pūnaewele ʻaʻole ponoʻī ke kumu o ka pane ʻana o ka pale ʻana a me ka pale ʻana i ka autoimmunity. Hoʻopili ʻia kēia kaʻina hana e nā molekala i kapa ʻia ʻo Major Histocompatibility Complex (MHC):
– MHC Papa I: Loaʻa ma nā ʻāpana kino āpau koe wale nō nā ʻāpana koko ʻulaʻula. Hōʻike i nā antigens mai loko mai o ke ʻāpana no nā ʻāpana T cytotoxic e scan. Inā ʻike ʻia ʻo ia iho, ʻaʻohe hopena hou aʻe e hana ʻia.
– MHC Papa II: Loaʻa wale nō ma nā pūnaewele hōʻike antigen (APC) e like me macrophages, nā pūnaewele dendritic, a me nā pūnaewele B. Hōʻike i nā antigens o waho i nā pūnaewele T kōkua, e kōkua ana i ka hoʻoulu ʻana i nā pūnaewele B a me nā pūnaewele cytotoxic.
Ke hele nei ka ʻōnaehana pale ma ke kaʻina hana aʻo i loko o ka thymus gland a me ka iwi iwi e hoʻomohala i ka hoʻomanawanui i nā self-antigens. Hoʻopau pinepine ʻia nā cell e pane ana i nā self-antigens i kēia kaʻina hana e pale aku i ka ulu ʻana o ka autoimmunity.
Ka hopena
ʻO ka hoʻomaopopo ʻana i ka ʻōnaehana pale a pehea e ʻike ai ke kino a pane aku i nā pathogens he mea nui ia i ka biology a me ka lāʻau lapaʻau. Hōʻuluʻulu kēia ʻatikala i kekahi mau manaʻo nui, me nā ʻokoʻa ma waena o ka pale kūlohelohe a me ka pale adaptive, ke kuleana o nā cell Treg, nā ʻano hana antibody, a me ke kaʻina hana o ka ʻōnaehana pale o ka ʻike ponoʻī a me ka ʻike ʻole iā ia iho. ʻO ka hoʻomaopopo hohonu ʻana i kēia mau kumuhana e hiki ke hoʻomākaukau i ke ala no ka hoʻomohala ʻana i nā lāʻau lapaʻau hou a me ka hoʻomaikaʻi ʻana i ke olakino kanaka.
