He mau mea hoʻolaha maʻi liʻiliʻi loa nā virus i hiki ke hoʻohua hou i loko o nā hunaola o nā meaola ola. Ua ʻike ʻia nā virus he ʻāpana koʻikoʻi o ka ʻōnaehana ola o ka Honua, me nā kuleana like ʻole, mai nā mea hoʻoulu maʻi a hiki i nā mea hana i ka noiʻi ʻepekema a me ka biotechnology.
Ka Wehewehena a me nā ʻAno o nā Virus
Ma ke ʻano hoʻonohonoho, aia nā virus i ka waikawa nucleic (DNA a i ʻole RNA) i hoʻopuni ʻia e kahi ʻaʻahu protein i kapa ʻia he capsid. Loaʻa i kekahi mau virus kahi papa hou i kapa ʻia he envelope, i hana ʻia me nā lipids a me nā protein. ʻAʻohe o nā virus i nā organelles a i ʻole nā ʻano cellular ʻē aʻe e pono ai no ka metabolism kūʻokoʻa a me ka hana hou ʻana. Akā, hilinaʻi lākou i nā cell host no kēia mau kaʻina hana.
He liʻiliʻi loa nā virus, mai 20 a 300 nanometers, e liʻiliʻi ai lākou ma mua o ka bacteria a me ka hapa nui o nā cell ʻē aʻe. ʻO ko lākou liʻiliʻi e hiki ai iā lākou ke komo i loko o nā cell host ma o nā ʻano hana like ʻole.
Ka Hoʻokaʻawale ʻana o nā Maʻi
Hoʻokaʻawale ʻia nā virus ma muli o nā ʻano like ʻole, me ke ʻano o ka waikawa nucleic i loko o lākou (DNA a i ʻole RNA), ke ʻano a me ka nui o ko lākou capsid, ke alo a i ʻole ka ʻole o kahi envelope, a me kā lākou hoʻolālā hana hou. Kōkua kēia hoʻokaʻawale ʻana i nā kānaka ʻepekema e ʻike a aʻo i nā virus a hoʻomohala i nā ʻano hana e kāohi ai i nā maʻi a lākou e hoʻokumu ai.
Ke Kūlana o nā Virus i nā Maʻi
ʻO kekahi o nā hana kaulana loa o nā viruses ʻo ia ke ʻano he mau mea hoʻoulu maʻi. Hiki i nā viruses ke hoʻopili i nā ʻano meaola like ʻole, me nā kānaka, nā holoholona, nā mea kanu, a me nā bacteria (i kapa ʻia he bacteriophages). ʻO kekahi o nā maʻi i hoʻokumu ʻia e nā viruses e komo pū me ka influenza, HIV/AIDS, hepatitis, dengue fever, a me COVID-19.
Ke hoʻopilikia nā virus i nā cell host, hoʻohana lākou i nā mīkini cell o ka host e hana hou iā lākou iho. Hoʻopōʻino pinepine kēia kaʻina hana a pepehi paha i nā cell host, hiki ke alakaʻi i nā hōʻailona maʻi. No ka laʻana, hoʻopilikia ka virus influenza i nā cell i loko o ke ala hanu, e hana ana i nā hōʻailona e like me ke kuni, ka ʻū, a me ka ʻāʻī ʻeha. Hoʻouka ka HIV i ka ʻōnaehana pale, e waiho ana i ka poʻe maʻi i maʻalahi i nā maʻi a me nā maʻi ʻē aʻe.
Nā Virus i loko o nā ʻōnaehana kaiaola a me ka Evolution
Ma waho aʻe o ko lākou kūlana ma ke ʻano he mau mea hoʻolaha maʻi, he kuleana koʻikoʻi nō hoʻi nā virus i nā ʻōnaehana ola a me ka ulu ʻana. Hiki i nā virus ke hoʻololi i ka heluna kanaka a me ke kaiāulu o nā meaola a kōkua i ka hoʻoili ʻana o nā gene ma waena o nā ʻano.
I loko o nā ʻōnaehana olaola, hoʻomalu pinepine nā virus i nā heluna microbial ma o nā maʻi lytic, kahi e luku ʻia ai ke kelepona kikowaena ma hope o ka hana hou ʻana o ka virus. Hiki i kēia ke kōkua i ka mālama ʻana i ke kaulike o nā heluna microbial a pale i ka noho aliʻi ʻana o kekahi mau ʻano.
He kuleana ko nā virus i ka ulu ʻana ma o ka hoʻoili ʻana o nā genes ākea, ke kaʻina hana e hoʻoili ʻia ai nā genes mai kekahi meaola i kekahi me ka ʻole o ka hana hou ʻana i ka moekolohe. Hiki i nā virus ke lawe i nā genes mai kekahi kikowaena i kekahi, hiki ke alakaʻi i ka loli genetic a me ka ulu ʻana o nā ʻano hou. ʻIke ʻia kēia hanana i nā bacteria, kahi e hiki ai i nā bacteriophages ke hoʻoili i nā genes e hoʻopili ana i ke kūʻē ʻana i ka antibiotic ma waena o nā bacteria, e hoʻolalelale ana i ka ulu ʻana o ke kūʻē ʻana i ka antibiotic.
Nā Pōmaikaʻi o nā Virus i ka ʻEpekema a me ka ʻenehana
Ma waho aʻe o ko lākou kuleana i nā ʻōnaehana ola a me ka ulu ʻana, he mau pono koʻikoʻi ko nā virus i ka ʻepekema a me ka ʻenehana. I ka noiʻi biomedical, hoʻohana ʻia nā virus ma ke ʻano he mea hana e aʻo ai i ka hana gene a me nā ʻano maʻi. No ka laʻana, ua hoʻohana ʻia nā retrovirus e like me ka HIV e hoʻomaopopo i ka hoʻoponopono ʻana o nā gene a me ke kaʻina hana o ke kelepona.
He kuleana koʻikoʻi nō hoʻi nā virus i ka biotechnology, ʻoi aku hoʻi i ka gene therapy a me ka hana ʻana i nā lāʻau pale. Pili ka Gene therapy i ka hoʻohana ʻana i nā virus i hoʻololi ʻia e hāʻawi i nā genes i nā cell o ka mea maʻi. Hiki ke hana ʻia nā virus e kāpae i nā genes e hoʻoulu ai i nā maʻi genetic a i ʻole e hoʻolauna i nā genes e kōkua i ke kaua ʻana iā lākou. No ka laʻana, hoʻohana ka gene therapy i nā virus adeno-associated (AAVs) e mālama i nā maʻi genetic e like me Duchenne muscular dystrophy a me hemophilia.
I ka hana ʻana i nā lāʻau pale, hoʻohana pinepine ʻia nā virus ma ke ʻano he kumu hoʻohālike no ka hoʻomohala ʻana i nā pale ʻana. Ua hoʻomohala ʻia kekahi mau lāʻau pale holomua loa, e like me ka lāʻau pale polio a me ka lāʻau pale hepatitis B, me ka hoʻohana ʻana i nā virus i hoʻonāwaliwali ʻia a i ʻole i hoʻopau ʻia. Hoʻoulu kēia mau lāʻau pale i ka ʻōnaehana pale e hana i kahi pane pale me ka ʻole o ka maʻi.
Nā Hoʻomohala Hou ma Virology
Ke hoʻomau nei ka ulu ʻana o ka ʻepekema virology me ka holomua o ka ʻenehana a me ka ʻike ʻepekema. ʻO kahi hoʻomohala hou loa, ʻo ia ka hoʻohana ʻana i ka ʻenehana CRISPR-Cas9 e hoʻololi i nā genomes o nā virus a me nā cell host. Hiki i kēia ʻenehana i nā ʻepekema ke ʻoki a hoʻololi i nā ʻāpana kikoʻī o ka DNA, e wehe ana i nā manawa hou no ka hoʻōla gene a me ka noiʻi maʻi.
Eia kekahi, ua hoʻoulu ka maʻi ahulau COVID-19 i ka noiʻi nui ʻana i ka hoʻomohala ʻana i nā lāʻau pale a me nā lāʻau lapaʻau antiviral. ʻO nā lāʻau pale mRNA, e like me nā mea i hoʻomohala ʻia e Pfizer-BioNTech lāua ʻo Moderna, he mau holomua nui ia e hoʻohana ana i ka ʻenehana genetic e hana i kahi pane pale ikaika a maikaʻi hoʻi. Ua hoʻomaikaʻi pū kēia noiʻi i ko mākou ʻike i ka dinamika o ka maʻi a me kāna mau pilina me ka ʻōnaehana pale.
Nā Pilikia i ka Kaohi ʻana i nā Virus
ʻOiai ke holomua nui nei, he pilikia nui ka kaohi ʻana i ka maʻi. ʻO kahi pilikia nui ka ulu wikiwiki ʻana o ka maʻi, hiki ke hana i nā ʻano hou i ʻoi aku ka laha a kūʻē paha i nā lāʻau pale a me nā lāʻau lapaʻau. Hiki ke hana maʻamau kēia mau mutations i ka wā o ka replication viral a hiki ke makemake ʻia ma o nā kaomi koho, e like me ka hoʻohana ʻana i nā lāʻau antiviral a i ʻole ka lāʻau pale nui.
Eia kekahi, ʻo nā maʻi i hiki ke hoʻopili i nā ʻano like ʻole, e like me nā maʻi influenza a me nā coronaviruses, he mau pilikia nui ia i ke olakino kanaka a me nā holoholona. ʻO ka hoʻoili ʻana o nā maʻi ma waena o nā ʻano (zoonosis) hiki ke alakaʻi i nā maʻi ahulau hou, e like me ka mea i ʻike ʻia ma ka maʻi ahulau COVID-19, i hoʻomaka mai ka maʻi SARS-CoV-2.
ʻO ka hoʻoponopono ʻana i kēia mau pilikia e pono ai kahi ala multidisciplinary e pili ana i nā kānaka ʻepekema, nā limahana olakino, nā aupuni, a me ka lehulehu. ʻO kēia ala e pili ana i ka nānā ʻana i nā maʻi, ka hoʻomohala ʻana i nā lāʻau pale a me nā lāʻau lapaʻau hou, a me ka hoʻokō ʻana i nā kulekele olakino lehulehu kūpono.
Ka hopena
He mau mea hoʻolaha maʻi nā virus e pāʻani ana i kahi kuleana like ʻole i nā ʻōnaehana ola a me ka ʻepekema. ʻOiai ua ʻike nui ʻia he kumu o nā maʻi, hāʻawi pū nā virus i ka ulu ʻana a he mau noi koʻikoʻi i ka noiʻi a me ka biotechnology. Hāʻawi nā holomua i ka virology a me ka ʻenehana i ka manaʻolana hou i ka kaohi ʻana a me ka hoʻohana ʻana i nā virus no ka pono o ke kanaka. Eia nō naʻe, pono nā pilikia o ka kaohi ʻana i nā virus i ka laulima honua a me nā ʻano hana hou e pale ai i ke olakino kanaka a me ke kaiapuni.
