Siva malunga nomhlaza osasazekayo, kwaye ukuba siye sazifumanisa thina, soyika ukuba iya kwasasazeka. Kodwa unokuba uzibuza ukuba kutheni iseli somhlaza sisasazeka xa iiseli eziqhelekileyo zihlala apho zihlala khona. Kwaye ziphelela njani kwiindawo zomzimba osususwe kude nesisu esiqalile?
Kubaluleka kokuSasazeka (iMetastasis)
I-Cancer - xa ihlala apho iqala khona - isoloko iyaphiliswa ngokuhlinzwa okanye ezinye izibonelelo.
Isizathu sokuba amagqirha kunye nezigulane zomhlaza ziloyike le nto kuba ukusabalalisa (i- metastase ) ixanduva lweepesenti ezingama-90 zokufa komhlaza. Uphando olunzulu luqhubeka lujonga iindlela zokukhusela umdlavuza ukusasazeka.
Kutheni I-Cancer Isasazeka?
I-Cancer iqala emva koluhlu lweenguqulelo ezikhokelela kwiiseli ezahlukana ngokungathi zifi (azifi). Oku kulandelwa kukukhula kwe-tumor engakwazi ukuhlasela izicubu kunye nezitho eziseduze. Kodwa iiseli zomhlaza zithintela njani kwi-tumor (ngokungafani neeseli eziqhelekileyo ezihlala kwilungu abahlala kuzo) kwaye zisasazeka? Indlela elula yokuyijonga kukuba iiseli eziqhelekileyo "zinamathele." Iifestile zentliziyo zinamathela kwezinye iiseli zentliziyo kwaye awuhambi kwinqanaba ngomzekelo. Iisensi eziqhelekileyo zenzululwazi zenza izinto ezibizwa ngokuba yi-molecules ezinamathelisi ezenza zihlangane kunye. Iimodemu ze-Adhesion zinokujongwa njengefana neglue. Iiseli zengqumbo, ngokuchaseneyo, zithintela iimleksi ze-adhesion ezenza kube lula ukuba ziphule kwaye zihambe ngoko.
Iiseli eziqhelekileyo ziyakuqonda imida yazo engcono kunomhlaza wamaseli ngokuthetha kunye namaseli kunye nezicubu.
Isifaniso esinokunceda nabani na oye wancedisa umntwana kwisikolo seprayimari ingaba oku. Kwiphepha lekwakha, ubeka iglue. Emva koko ufefe i-glue nge-glitter.
I-glitter ehambelana ne-glue ihlala endaweni, kanti i-glitter ewela apho kungekho glue ingagqiba etafileni, umgangatho, umtya wakho, okanye phantsi kweengubo zakho ukuhamba naphi na apho uya kwenzeka khona.
Iindlela Zomdlavuza Usasazeka
Xa umhlaza weselulane ukhululekile (emva kokusinda ngenxa yokungabikho kwamakhemikhali okubambelela kwi-tumor kunye nezinye iindlela) kukhululekile ukuhamba. Kukho iiprayimari ezi-3 ezisemgangathweni zingathabatha:
- Kwindawo (KwiNgingqi: Ngokuqhelekileyo umhlaza wesifo sokuqala usasazeka kwindawo esondeleyo apho i-tumor iqala.Oogqirha basebenzise amagama athi "indawo" okanye "indawo" ukuchaza lolu hlobo lokusasazeka ngandlela-thile. umhlaza), kodwa ngezinye iindlela zihluke. Nangona izilonda ezinobungozi zingabangela iingxaki (ingakumbi ukuba zikwindawo efihliweyo njengengqondo) zivame ukuba "zihloniphekile" kwaye zihloniphe imida engumda kwaye zidale umonakalo xa ziphosa kwii-tissue ezikufuphi. I-Cancers, ngokuchaseneyo, iyayihoxisa loo mida kwaye inokuhlasela izicubu ezinxulumeneyo kunye namalungu omzimba. yesikhumba.
- Ngegazi: Amaseli omhlaza angaphinda angene egazini apho aqhutyelwa khona emzimbeni.
- Ngokusebenzisa i-Lymphatic System: I-lymphatic system idlala indima ebalulekileyo ekukhuseleni umzimba kumdlavuza, kodwa inokuthi isebenze njengomzila apho umdlavuza usasazeka khona. Emva kokunyusa kwendawo, iisomhlaza zithatha ukusasaza kwii-lymph nodes ezisekuqaleni ngeziteshi zelymph kuqala.
Emva koko
Xa iiseli zomhlaza zisasazeka kwenye inxalenye yomzimba kwaye ziqala ukwenza i-tumor, kuyimfuneko ukuba isisu sibe nomthombo wesondlo. Bakwenza oku ngenkqubo yokwenza imithambo entsha yegazi ukuzisa izondlo kumhlaza. Abaphandi baye bathi igama elithi angiogenesis . Imithi ebizwa ngokuthi i-angiogenesis inhibitors isetyenzisiwe kwezinye i-cancer, kwaye umsebenzi oqhubekayo uqhubeka ukufumana iziyobisi ukuyeka inkqubo yokwenziwa kweempahla zegazi ngamathumba ukuze bakwazi ukukhula.
Iziphumo
Njengoko kuphawuliwe ngasentla, ukusabalalisa (i-metastasis) yezidumbu zijongene nomdla wokufa komhlaza. Kodwa imiphumo iyahlukahluka kuxhomekeke apho umhlaza usasazeka khona. Ukusasaza kwingqondo kungabangela ukuxhwala, ukukhubazeka, nokufa. Ukusasazeka kwimiphaphu kunokunciphisa ukusebenza kwemiphunga. Ukusasaza amathambo kunokubangela ukuba i-fractures kunye nokukhubazeka kuhambelane neziqhekeza.
Imithombo:
National Cancer Institute. Yintoni iCancer? Ukuhlaziywa 02/09/15. https://www.cancer.gov/about-cancer/understanding/what-cancercer