Immunohistochemistry

Immunohistochemistry (IHC) inzira ine simba yemurabhoritari inoshandiswa kuona maantigen chaiwo (mapuroteni) mumaseru echikamu chetishu. Inosanganisa misimboti yeimmunology uye microscopy kuona uye kutsvaga chaiwo mapuroteni mumasampunzi ematishu, zvichiita kuti zvive zvakakosha munzvimbo dzakawanda dzekutsvaga kwekurapa, kuongororwa, uye pathology. Iyo tekinoroji inoshandiswa zvakanyanya mukuongororwa kwegomarara, pamwe nekuona matishu ezvimwe zvirwere, zvichibatsira mukunzwisisa hunhu hwebundu uye kutungamira sarudzo dzekurapa.

Chii chinonzi Immunohistochemistry?

Immunohistochemistry (IHC) inzira yemurabhoritari inoshandiswa kuona kuvepo kwemaantigen chaiwo mumasero echikamu chetishu. Inoshandisa musimboti wekudyidzana kweantigen-antibody kusunga masoja ekudzivirira chirwere kumaantigen, zvichiita kuti antigen ionekwe pasi pemaikorosikopu.

Maitirwo eIHC anosanganisira kushandisa masoja ekudzivirira chirwere akaiswa chiratidzo chinooneka, senge enzyme kana dhayi yefluorescent, kunanga nekusunga kune chaiwo maantigen mumuenzaniso wetishu. Masoja ekudzivirira chirwere aya anonyanyonangana neantigen aakagadzirirwa kuti aone, zvichiita kuti IHC ive nzira chaiyo chaiyo yekuziva mapuroteni kana mamaki mumasamples ematishu.

Immunohistochemistry Inoshanda Sei?

Matanho akakosha anosanganisirwa muImmunohistochemistry ndeaya anotevera:

1. Tissue Muenzaniso Kugadzirira: Muenzaniso wetishu (kazhinji kubva kubiopsy) inounganidzwa uye inogadziriswa kuchengetedza chimiro chayo. Sample yacho inochekwa kuita zvidimbu zvitete zvoiswa pagirazi siraidhi.
2. Antigen Retrieval: Iyo matishu inowanzobatwa nekupisa kana makemikari kufumura mapuroteni kana maantigen kune masoja ekudzivirira chirwere, sezvo formaldehyde fixation inogona kuvhara maantigen nzvimbo.
3. Antibody application: Chikamu chetishu chinopinzwa nekutanga antibody inosungirira kune yakananga antigen.
4. Secondary Antibody Binding: Yechipiri masoja ekudzivirira chirwere anozoiswa, anosunga kune yekutanga masoja ekudzivirira chirwere uye anobatanidzwa nechiratidzo (senge enzyme kana dhayi refluorescent).
5. Kuwanikwa: Iyo tishu inobatwa ne substrate inobata ne enzyme kana chiratidzo, ichigadzira shanduko yeruvara kana fluorescence panzvimbo yeantigen. Izvi zvinobvumira antigen kuti ionekwe pasi pe microscope.
6. Kududzira: Pathologists vanoongorora mhedzisiro nekuongorora maitiro ekusvibisa. Kana iyo antigen inotarirwa iripo, matishu acharatidza kusviba chaiko, kungave sekushanduka kwemavara kana fluorescence, zvichiratidza nzvimbo uye kuwanda kweantigen.

Sei Immunohistochemistry Inoitwa?

Immunohistochemistry chishandiso chakasiyana-siyana chine mashandisirwo akasiyana siyana, kunyanya mumunda wepathology uye diagnostics. Pazasi pane zvimwe zvezvikonzero zvikuru nei IHC inoitwa:

• Kuongororwa kweCancer uye Kurongeka: IHC inoita basa rakakosha mukuongororwa uye kurongwa kwegomarara. Masero ebundu anowanzo ratidza mamaki chaiwo anogona kubatsira kuziva rudzi rwegomarara uye kwayakabva. Semuyenzaniso, gomarara repazamu rinogona kurongwa zvichibva pakutaura kwemakaki seestrogen receptors (ER), progesterone receptors (PR), uye HER2. IHC inogona kuona aya mamakisi, ichibatsira kuona nzira dzekurapa dzakanyanya kushanda.
• Kuziva Tumor Origin: IHC inoshandiswa kuona kwakabva bundu kana sampuli yetishu isingaonekwe zviri nyore. Semuenzaniso, kana gomarara rikaonekwa mune lymph node, IHC inogona kubatsira kuziva kuti yakabva pazamu, colon, kana mapapu nekuona mavara-chaiwo.
• Staging Cancer uye Kufanotaura Prognosis: IHC inoshandiswa kuongorora huwandu hwekupinda kwegomarara munyama, ichibatsira kuona danho regomarara uye kufungidzira. Inogona zvakare kushandiswa kufanotaura kuti hutsinye hwegomarara hungave hwakavakirwa pakutaura kwemamwe mapuroteni.
• Autoimmune uye Zvirwere zvinotapukira: IHC inoshandiswawo kuongorora zvirwere zve autoimmune, senge lupus, kana kuona hutachiona hunokonzerwa nebhakitiriya kana mavhairasi. Mamwe maseru ekudzivirira emuviri kana hutachiona hunogona kutariswa uchishandisa chaiwo mamaki mumasampuri ematishu.
• Zvinangwa zvekutsvakurudza: Mukutsvagisa, IHC inoshandiswa kudzidza kutaura kweprotein mumasero nematishu. Izvi zvinogona kubatsira vaongorori kuti vanzwisise kuti zvirwere zvinokura sei uye kuti mapuroteni akasiyana anopindirana sei mumaitiro echirwere. Inowanzoshandiswa mukugadzirwa kwezvinodhaka uye kuongorora kushanda kwemaitiro ekurapa.

Maitiro Ekugadzirira Immunohistochemistry

Immunohistochemistry pachayo haidi gadziriro yemurwere sezvo iri bvunzo yekuongorora inoitwa pamasampunzi enyama. Nekudaro, matanho anotevera anogona kuve nechekuita mukugadzirira bvunzo yeIHC:

• Tissue Sample Collection: Kuongororwa kweIHC kunoda sampuli yetishu, kazhinji inowanikwa kuburikidza nebiopsy kana kuvhiyiwa. Kana biopsy ichidikanwa, mutarisiri wako wehutano anotsanangura maitiro, angangosanganisira anesthesia yemunharaunda, sedation, kana anesthesia yeruzhinji zvichienderana nenzvimbo uye saizi yesampuli yetishu.
• Nhoroondo Yemurwere: Kupa mutarisiri wako wehutano nhoroondo yakadzama yekurapa kwakakosha pakududzira zvabuda. Kana uine nhoroondo yemhuri yegomarara chairo kana zvirwere zve autoimmune, kugovera ruzivo urwu kunobatsira vanoongorora zvirwere kusarudza masoja ekudzivirira chirwere akakodzera pakuongororwa.
• Ongororo yeZviratidzo: Usati waita chero biopsy kana kuvhiyiwa iyo inopa sampu yeIHC, chiremba wako anogona kukumbira kuongororwa kwakadzama kwezviratidzo zvako kutungamira kusarudzwa kweiyo bvunzo uye mamaki ekuongorora.

Kuturikira Migumisiro Yekuedza

Kududzirwa kwemigumisiro yeImmunohistochemistry kunoenderana nemuenzaniso uye kusimba kwekusvibiswa, iyo inoongororwa nenyanzvi yehutano yakadzidziswa. Zvinhu zvakakosha zvekufunga nezvazvo ndezvi:

• Staining Intensity:
  • Strong Staining: Inoratidza huwandu hwepamusoro hwechinangwa antigen munyama.
  • Kusviba zvine mwero: Inoratidza kuvapo kuri pakati nepakati kweantigen.
  • Husina Kusimba kana Pasina Kusviba: Inopa zano kuti antigen haipo kana kuti iripo pane yakaderera.
• Staining Nzvimbo:
  • Cytoplasmic Staining: Kana iyo tsvina inowanikwa mu cytoplasm yesero, inoratidza kuti chinangwa cheprotein chiripo.
  • Nuclear Staining: Kana ruvara rwuri munucleus, zvinoreva kuti protein yainonangwa inobata basa mukati mesero.
  • Membranous Staining: Kusvibisa pane membrane yesero kunogona kuratidza chiitiko chekugamuchira kana kunamatira mamorekuru.
• Muenzaniso weStaining: Maitiro ekusvibisa, kusanganisira kuti akapararira kana kuti akatarisana, anobatsira kuongorora kugoverwa uye kuwanda kweantigen uye inoshandiswa mukuongorora mhando dzekenza kana zvirwere.
• Specific Markers: Zvirwere zvakasiyana zvinosanganiswa nemakasi chaiwo. Semuenzaniso, HER2 positivity yakakosha pakusarudza nzira dzekurapa mugomarara rezamu, nepo maCD marker achibatsira kurongedza mhando dzakasiyana dze lymphoma.

Normal Range yeImmunohistochemistry

Sezvo Immunohistochemistry iri nzira inoshandiswa kuona maantigen chaiwo, hapana yechinyakare "yakajairwa mhando" yemhinduro dzebvunzo. Pane kudaro, zvigumisiro zvinodudzirwa zvichienderana nokuti antigen inotarirwa iripo mumuenzaniso uye maitiro ekutaura. Mhedzisiro yakanaka yechiratidzo chaiyo inogona kuratidza kuvepo kwegomarara kana chirwere, nepo mhedzisiro yakaipa inogona kuratidza kusavapo kwayo. Kududzirwa kunoenderana nekiriniki mamiriro uye chaiwo mamakisi ari kuedzwa.

Kushandiswa kweImmunohistochemistry

Immunohistochemistry ine kushandiswa kwakasiyana-siyana mukuongororwa kwekurapa, kusanganisira:

• Kuongororwa kweCancer uye Subtyping: IHC inobatsira kuona rudzi rwegomarara, kuona kwayakabva, uye kuronga subtype yayo (semuenzaniso, kenza yemazamu, lymphoma).
• Kuziva Tumor Markers: Inoshandiswa kuona kuvepo kwemapuroteni akadai seHER2 mugomarara rezamu kana CD20 mune mamwe marudzi e lymphoma.
• Autoimmune Chirwere Kuongororwa: IHC inogona kubatsira kuona kuvepo kwemasero ekudzivirira emuviri kana masoja ekudzivirira chirwere anoratidza zvirwere zve autoimmune zvakaita se lupus kana rheumatoid arthritis.
• Infectious Disease Dignosis: IHC inoshandiswa kuona hutachiona mumatishu, kusanganisira mabhakitiriya, hutachiona, kana hutachiona hwehutachiona.
• Tsvakurudzo: Inowanzo shandiswa mukutsvagisa kudzidza mapuroteni kutaura mumatishu uye maseru kuti anzwisise nzira dzechirwere, kunyanya mukuvandudza zvinodhaka.
• Chirwere cheCancer: IHC inogona kubatsira mukuona nhanho yegomarara, kunyanya mumamiriro ezvinhu apo kuona huwandu hwekupararira kwechirwere kwakakosha.

10 Mibvunzo Inowanzo bvunzwa Nezve Immunohistochemistry

1. Chii chinonzi Immunohistochemistry? Immunohistochemistry inzira yemurabhoritari inoshandisa masoja ekudzivirira chirwere kuti aone maantigen chaiwo muzvikamu zvetishu. Inoshandiswa kuongorora zvirwere, kunyanya kenza, uye kuona kuvepo kwemapuroteni chaiwo mumasero.
2. Immunohistochemistry inoitwa sei? Matishu samples anounganidzwa, kazhinji kuburikidza nebiopsy. Sample inorapwa nemasoja ekudzivirira chirwere akanangana nemapuroteni ari kuongororwa. Kana antigen iripo, inosunga kune antibody uye inogadzira chiratidzo chekuona, icho chinoongororwa pasi pe microscope.
3. Ndeapi mamiriro anogona kuongororwa neImmunohistochemistry? Immunohistochemistry inoshandiswa kuongorora kenza (yakadai sezamu, mapapu, kana lymphoma), zvirwere zve autoimmune, uye zvirwere. Inobatsira kuona kuvapo uye rudzi rwemaantigen anogona kuratidza chirwere.
4. Ndeipi basa reImmunohistochemistry mukuongororwa kenza? IHC inobatsira kuona tumor markers seHER2, estrogen receptors, uye progesterone receptors, izvo zvakakosha pakuongorora mhando dzegomarara, subtyping, uye kuona marapirwo akakodzera.
5. Is Immunohistochemistry invasive? Immunohistochemistry pachayo haisi invasive. Nekudaro, inoda sampuli yetishu inowanikwa kuburikidza nematanho senge biopsy kana kuvhiyiwa, izvo zvinogona kusanganisira kumwe kusagadzikana zvichienderana nemaitiro.
6. Zvinotora nguva yakareba sei kuti uwane mhinduro kubva kuImmunohistochemistry? Mhedzisiro yeIHC inowanzo tora mazuva mashoma kusvika kusvondo, zvichienderana nekuoma kwebvunzo uye kudiwa kweimwe ongororo.
7. Chii chinonzi Immunohistochemistry mhedzisiro inorevei? Mhedzisiro yakanaka inoratidza kuti iyo antigen inotarirwa yakawanikwa mumuenzaniso wenyama. Mukuongororwa kwegomarara, izvi zvinogona kureva kuvepo kwemucherechedzo wegomarara, nepo muzvirwere zve autoimmune, zvinogona kuratidza kuvepo kweakananga maseru edziviriro.
8. Chii chinonzi Immunohistochemistry mhedzisiro inorevei? Mhedzisiro isina kunaka inoreva kuti antigen haina kuwanikwa mumuenzaniso wetishu. Mukuongororwa kwegomarara, izvi zvinogona kuratidza kuti chiratidzo, senge HER2 mugomarara rezamu, hachipo.
9. Ko Immunohistochemistry inogona kushandiswa kugadzirisa cancer? Ehe, IHC inobatsira mukuita cancer nekuona kukura kwebundu, kupararira, uye kutaura kwemamwe mamaki anopesvedzera kufungidzira uye kurapwa sarudzo.
10. Immunohistochemistry yakasiyana sei nedzimwe bvunzo? Kusiyana nekuongororwa kwemajini kana kuongororwa kwema molecular, Immunohistochemistry inotarisa pakutaura kweprotein mumasampuni ematishu, zvichiita kuti zvive zvakakosha pakuona uye kuongorora mamiriro paserura.

mhedziso

Immunohistochemistry chinhu chakakosha chekuongorora mumishonga yemazuva ano, inopa ruzivo rwakakosha mukuvapo uye chimiro chezvirwere, kunyanya kenza uye autoimmune mamiriro. Nekuona chaiwo maantigen, inobatsira pathologists kunyatsoongorora mamiriro, gomarara redanho, uye kunyange kuona nzira yekurapa yakanakisa. Nepo maitiro acho asingapindire, kuunganidzwa kwetishu kunogona kuda kunyatsogadzirira uye hunyanzvi hwekurapa.

Kunzwisisa maitiro eImmunohistochemistry, mashandisiro ayo, uye nzira yekududzira mhedzisiro inogona kutungamira vese varwere nevarapi vehutano mukuita sarudzo dzine ruzivo nezve kuongororwa uye kurapwa. Kunyangwe iwe urikuongororwa IHC yekuongororwa kenza kana sechikamu chetsvagurudzo yeongororo, nzira iyi ibwe repakona rekuongororwa kwekurapa uye kuenderera mberi nekutsvaga.