Li-Cathepsins: Li-Protease tsa Key Lysosomal Lipatlisisong tsa Mafu le ho Fumana Lithethefatsi

Selelekela

Li-cathepsin ke sehlopha sa li-enzyme tsa proteolytic tse fumanehang ka har'a lysosomes, moo li bapalang karolo ea bohlokoa ho senyeha ha protheine ea intracellular le homeostasis ea lisele. Li-enzyme tsena li kenya letsoho ho aroleng liprotheine hore e be li-peptide tse nyane le li-amino acid, ho thusa lisele ho tsosolosa li-biomolecule le ho boloka tšebetso e tloaelehileng ea metabolism.

Le hoja li-cathepsin li atisa ho amahanngoa le ts'ebetso ea lysosomal, litho tse ngata tsa lelapa lena la enzyme le tsona li kenya letsoho mekhoeng ea extracellular le e seng ea lysosomal. Ka lebaka leo, li-cathepsin li se li le bohlokoa haholo lipatlisisong tsa biomedical, haholo-holo lithutong tse amanang le ho ruruha, mofets'e, mathata a neurodegenerative, tokiso ea lisele le taolo ea 'mele ea ho itšireletsa mafung.

Cathepsins ke eng?

Li-cathepsin li arotsoe haholo ho latela masala a amino acid sebakeng sa bona se sebetsang, ho kenyelletsa le cysteine ​​cathepsins, aspartic cathepsins, le serine cathepsins. Har'a tsona, li-cysteine ​​​​cathepsin tse kang cathepsin B, L, S, le K ke tsona tse ithutoang ka ho fetisisa. Mofuta o mong le o mong o na le mekhoa e fapaneng ea ho hlalosa le mesebetsi ea tlhaho, e leng se etsang hore lelapa la cathepsin le fapane haholo 'me le be le bohlokoa ba tlhaho.

Har'a li-subtypes tse ithutoang haholo, Cathepsin B, Cathepsin L, le Cathepsin K e 'ngoe le e' ngoe e na le likarolo tse ikhethang tsa bophelo. Cathepsin B ke lysosomal cysteine ​​​​protease e amehang ho senyeha ha protheine ea intracellular hape e ithutoa haholo bakeng sa karolo ea eona ea tsoelo-pele ea mofetše, ho ruruha, le ho nchafatsa matrix a extracellular. Cathepsin L ke e 'ngoe ea bohlokoa ea cysteine ​​​​protease e kenyang letsoho phetisong ea protheine, ts'ebetso ea antigen, le cellular homeostasis,' me hangata e amahanngoa le tlhaselo ea hlahala le boits'oaro ba metastatic. Cathepsin K e tsebahala haholo ka collagen ea eona e matla - ts'ebetso e nyenyefatsang le karolo ea eona ea bohlokoa ho lokisoeng ha masapo, haholo ho osteoclast-mediated bone resorption. Hobane li-cathepsin tsena li amahanngoa le litsela tse fapaneng tsa likokoana-hloko le mekhoa ea mafu, li sebelisoa haholo ho oncology, ho ruruha, lysosome biology, le lipatlisiso tsa ho sibolla lithethefatsi.

Mesebetsi ea Biological ea Cathepsins

Li-cathepsin li tsebahala haholo ka karolo ea tsona ho protheine catabolism ka har'a lysosome, empa mesebetsi ea tsona e fetela hole ho feta ho senyeha ha motheo. Liseleng tsa 'mele oa ho itšireletsa mafung, li-cathepsin tse ling li ameha ts'ebetsong ea antigen le tlhahiso, ho tšehetsa likarabo tsa 'mele oa ho itšireletsa mafung. Lithakong tse hokahaneng, li-cathepsin tse ling li nka karolo ho senyeheng ha matrix a extracellular le tokisong ea lisele.

Li-enzyme tsena li boetse li hokahane le apoptosis, autophagy, le litsela tsa lipontšo tsa lisele. Hobane ts'ebetso ea cathepsin e ka ama ts'ebetso e tloaelehileng ea lisele le lefu-mekhoa e amanang le eona, li amoheloa ka bophara e le lipheo tsa bohlokoa bakeng sa lipatlisiso tsa baeloji le nts'etsopele ea kalafo.

Lisebelisoa

Li-Cathepsin ke sehlopha sa li-enzyme tsa proteolytic tse fumanehang haholo ho lysosomes, moo li bapalang karolo ea bohlokoa ho senyeha ha protheine ea intracellular le homeostasis ea lisele. Lelapa lena la enzyme le kenyelletsa li-subtypes tse 'maloa tse thehiloeng ho masala a catalytic sebakeng se sebetsang, joalo ka cysteine ​​cathepsins, aspartic cathepsins, le serine cathepsins. Har'a li-subtypes tse ithutoang haholo, Cathepsin B, Cathepsin L, le Cathepsin K e 'ngoe le e' ngoe e na le likarolo tse ikhethang tsa bophelo. Cathepsin B ke lysosomal cysteine ​​​​protease e amehang ho senyeha ha protheine ea intracellular hape e ithutoa haholo bakeng sa karolo ea eona ea tsoelo-pele ea mofetše, ho ruruha, le ho nchafatsa matrix a extracellular. Cathepsin L e kenya letsoho phetisong ea liprotheine, ts'ebetso ea antigen, le cellular homeostasis, 'me hangata e amahanngoa le tlhaselo ea tumor le boits'oaro ba metastatic. Cathepsin K e tsebahala haholo ka collagen ea eona e matla - ts'ebetso e nyenyefatsang le karolo ea eona ea bohlokoa ho lokisoeng ha masapo, haholo ho osteoclast-mediated bone resorption.

Ka lebaka la mesebetsi ena e fapaneng, li-cathepsin li bohlokoa haholo lipatlisisong tsa mafu le ho sibolloa ha lithethefatsi. Li sebelisoa haholo litekong tsa ts'ebetso ea enzyme, tlhahlobo ea li-inhibitor, le phallo ea mosebetsi oa nts'etsopele ea assay. Lipatlisisong tsa oncology, Cathepsin B hangata e batlisisoa e le sepheo sa biomarker le kalafo ka lebaka la kamano ea eona le tlhaselo ea hlahala, metastasis, le ho senyeha ha matrix ea extracellular. Ka ntle ho mofetše, li-cathepsin li boetse li ithutoa ka mafu a ho ruruha, mafu a neurodegenerative, le maemo a mang a amanang le ho se sebetse ha lysosomal le ts'ebetso e sa tloaelehang ea protease.

Qetello

Li-Cathepsins ke lelapa la bohlokoa la bioloji la li-lysosomal protease tse bohlokoa haholo ho baeloji ea lisele, lipatlisiso tsa mafu le ho sibolloa ha lithethefatsi. Karolo ea bona ho fokotseng protheine, taolong ea 'mele ea ho itšireletsa mafung, ho nchafatsa lisele, le lits'ebetso tsa pathological li ba etsa lisebelisoa tsa bohlokoa bakeng sa lipatlisiso tsa mantlha le lithuto tsa biomedical tse sebelisitsoeng.

Ha lipatlisiso mabapi le ts'ebetso ea lysosome le biology ea protease li ntse li hola, li-cathepsin li tla lula e le taba ea bohlokoa ho nts'etsopele ea litlhahlobo tse ncha, li-biomarker le maano a kalafo.