Immunohistochemistry

Immunohistochemistry (IHC) yog cov txheej txheem kuaj muaj zog siv los kuaj xyuas cov antigens tshwj xeeb (cov protein) hauv cov hlwb ntawm cov ntaub so ntswg. Nws ua ke cov hauv paus ntsiab lus ntawm kev tiv thaiv kab mob thiab microscopy txhawm rau txheeb xyuas thiab nrhiav cov protein tshwj xeeb hauv cov qauv ntaub so ntswg, ua rau nws tseem ceeb hauv ntau qhov kev tshawb fawb kho mob, kuaj mob, thiab pathology. Cov txheej txheem no tau siv dav hauv kev kuaj mob qog noj ntshav, nrog rau kev txheeb xyuas cov ntaub so ntswg keeb kwm ntawm qee yam kab mob, pab nkag siab txog qog tus cwj pwm thiab coj kev txiav txim siab kho mob.

Immunohistochemistry yog dab tsi?

Immunohistochemistry (IHC) yog ib qho kev kuaj mob uas siv los kuaj pom muaj cov antigens tshwj xeeb hauv cov hlwb ntawm cov ntaub so ntswg. Nws siv lub hauv paus ntsiab lus ntawm antigen-antibody kev sib cuam tshuam los khi cov tshuaj tiv thaiv rau antigens, tso cai rau cov tshuaj tiv thaiv kom pom nyob rau hauv lub tshuab tsom.

Cov txheej txheem ntawm IHC suav nrog kev siv cov tshuaj tiv thaiv kab mob uas tau cim nrog cov cim ntsuas, xws li cov enzyme lossis cov fluorescent zas xim, txhawm rau tsom thiab khi rau cov tshuaj tiv thaiv tshwj xeeb hauv cov qauv ntaub so ntswg. Cov tshuaj tiv thaiv no yog qhov tshwj xeeb rau cov tshuaj tiv thaiv uas lawv tau tsim los kuaj xyuas, ua rau IHC yog ib txoj hauv kev zoo kawg rau kev txheeb xyuas cov protein tshwj xeeb lossis cov cim hauv cov qauv ntaub so ntswg.

Immunohistochemistry ua haujlwm li cas?

Cov kauj ruam yooj yim koom nrog hauv Immunohistochemistry yog raws li hauv qab no:

1. Kev npaj cov ntaub so ntswg: Cov qauv ntawm cov ntaub so ntswg (feem ntau yog los ntawm biopsy) tau sau thiab kho kom khaws nws cov qauv. Cov qauv yog txiav mus rau hauv nyias ntu thiab muab tso rau hauv ib lub iav swb.
2. Antigen Retrieval: Cov ntaub so ntswg feem ntau raug kho nrog cua sov lossis tshuaj kom nthuav tawm cov proteins lossis antigens rau cov tshuaj tiv thaiv, vim tias formaldehyde fixation tuaj yeem npog qhov chaw antigen.
3. Daim ntawv thov Antibody: Cov ntaub so ntswg yog incubated nrog ib tug thawj antibody uas tshwj xeeb khi rau lub hom phiaj antigen.
4. Secondary Antibody Binding: Tom qab ntawd cov tshuaj tiv thaiv kab mob thib ob yog siv, uas khi rau thawj cov tshuaj tiv thaiv kab mob thiab tau txuas nrog cov cim (xws li cov enzyme lossis cov fluorescent dye).
5. Nrhiav kom tau: Cov ntaub so ntswg yog kho nrog lub substrate uas reacts nrog lub enzyme los yog marker, ua ib tug hloov xim los yog fluorescence ntawm qhov chaw ntawm lub antigen. Qhov no tso cai rau cov antigen kom pom nyob rau hauv lub tshuab tsom.
6. Txhais: Pathologists txheeb xyuas cov txiaj ntsig los ntawm kev tshuaj xyuas cov qauv staining. Yog tias lub hom phiaj antigen tam sim no, cov ntaub so ntswg yuav pom cov xim tshwj xeeb, xws li hloov xim lossis fluorescence, qhia qhov chaw thiab ntau ntawm cov antigen.

Vim li cas thiaj ua Immunohistochemistry?

Immunohistochemistry yog ntau yam cuab yeej nrog rau ntau yam kev siv, tshwj xeeb tshaj yog nyob rau hauv lub teb ntawm pathology thiab kev kuaj mob. Hauv qab no yog qee qhov laj thawj tseem ceeb vim li cas IHC tau ua:

• Cancer Diagnosis thiab Classification: IHC ua lub luag haujlwm tseem ceeb hauv kev kuaj mob thiab kev faib cov qog nqaij hlav. Cov qog hlwb feem ntau qhia cov cim tshwj xeeb uas tuaj yeem pab txheeb xyuas hom mob qog noj ntshav thiab nws keeb kwm. Piv txwv li, mob qog noj ntshav mis tuaj yeem raug cais raws li kev qhia ntawm cov cim xws li estrogen receptors (ER), progesterone receptors (PR), thiab HER2. IHC tuaj yeem txheeb xyuas cov cim no, pab txiav txim siab txog kev kho mob zoo tshaj plaws.
• Kev txheeb xyuas qhov keeb kwm ntawm Tumor: IHC yog siv los txiav txim qhov keeb kwm ntawm cov qog thaum cov qauv ntaub so ntswg tsis yooj yim txheeb xyuas. Piv txwv li, yog tias kuaj pom mob qog noj ntshav hauv cov qog nqaij hlav, IHC tuaj yeem pab txheeb xyuas seb nws puas yog los ntawm lub mis, txoj hnyuv, lossis lub ntsws los ntawm kev kuaj xyuas cov cim tshwj xeeb.
• Staging Cancer thiab Predicting Prognosis: IHC yog siv los ntsuas qhov kev cuam tshuam ntawm kev mob qog noj ntshav hauv cov ntaub so ntswg, pab txiav txim siab txog theem mob qog noj ntshav thiab kuaj mob. Nws kuj tseem tuaj yeem siv los kwv yees tias mob qog noj ntshav yuav ua li cas raws li kev qhia ntawm qee cov proteins.
• Cov kab mob autoimmune thiab kis kab mob: IHC kuj tau ua haujlwm los kuaj cov kab mob autoimmune, xws li lupus, lossis txheeb xyuas cov kab mob los ntawm cov kab mob lossis kab mob. Qee lub cev tiv thaiv kab mob lossis kab mob tuaj yeem txheeb xyuas tau siv cov cim tshwj xeeb hauv cov qauv ntaub so ntswg.
• Lub Hom Phiaj Tshawb Fawb: Hauv kev tshawb fawb, IHC yog siv los kawm txog kev qhia cov proteins hauv cov hlwb thiab cov ntaub so ntswg. Qhov no tuaj yeem pab cov kws tshawb fawb nkag siab tias cov kab mob txhim kho li cas thiab cov protein sib txawv cuam tshuam li cas hauv cov txheej txheem kab mob. Nws yog feem ntau siv hauv kev txhim kho tshuaj thiab tshuaj xyuas qhov ua tau zoo ntawm cov kev pabcuam kho mob.

Yuav Ua Li Cas Npaj Rau Immunohistochemistry

Immunohistochemistry nws tus kheej tsis tas yuav muaj kev npaj tshwj xeeb rau tus neeg mob vim nws yog ib qho kev kuaj mob uas ua rau cov ntaub so ntswg kuaj. Txawm li cas los xij, cov kauj ruam hauv qab no tuaj yeem koom nrog hauv kev npaj rau kev xeem IHC:

• Cov ntaub so ntswg Sample Collection: Ib qho kev kuaj IHC yuav tsum tau kuaj cov ntaub so ntswg, feem ntau tau los ntawm kev kuaj ntshav lossis phais. Yog tias xav tau kev kuaj ntshav biopsy, koj tus kws kho mob yuav piav qhia txog cov txheej txheem, uas yuav suav nrog tshuaj loog hauv zos, sedation, lossis tshuaj loog dav dav nyob ntawm qhov chaw thiab qhov loj ntawm cov ntaub so ntswg.
• Tus neeg mob keeb kwm: Kev muab koj tus kws kho mob nrog cov keeb kwm kho mob kom ntxaws yog qhov tseem ceeb rau kev txhais cov txiaj ntsig. Yog tias koj muaj tsev neeg keeb kwm ntawm cov qog nqaij hlav tshwj xeeb lossis kab mob autoimmune, sib qhia cov ntaub ntawv no pab cov kws kho mob xaiv cov tshuaj tiv thaiv zoo rau kev kuaj.
• Kev tshuaj xyuas cov tsos mob: Ua ntej yuav mus rau ib qho biopsy lossis kev phais phais uas yuav muab cov qauv rau IHC, koj tus kws kho mob yuav nug kom ntxaws ntxaws txog koj cov tsos mob los qhia kev xaiv cov kev ntsuam xyuas tshwj xeeb thiab cov cim rau kev tshuaj xyuas.

Test Results txhais lus

Kev txhais ntawm Immunohistochemistry tau tshwm sim nyob ntawm tus qauv thiab kev siv ntawm cov staining, uas yog soj ntsuam los ntawm tus kws kho mob uas tau kawm tiav. Cov ntsiab lus tseem ceeb uas yuav tsum xav txog yog:

• Staining Intensity:
  • Strong Staining: Qhia txog qib siab ntawm lub hom phiaj antigen hauv cov ntaub so ntswg.
  • Moderate Staining: Qhia tau tias muaj qhov nruab nrab ntawm cov antigen.
  • Tsis muaj zog lossis tsis muaj xim: Qhia tias tsis muaj antigen los yog tam sim no nyob rau theem qis.
• Qhov chaw Staining:
  • Cytoplasmic Staining: Yog tias qhov stain pom nyob rau hauv cytoplasm ntawm lub cell, nws qhia tau hais tias lub hom phiaj protein nyob ntawd.
  • Nuclear Staining: Yog hais tias lub stain nyob rau hauv lub nucleus, nws qhia tau hais tias lub hom phiaj protein plays lub luag hauj lwm nyob rau hauv lub cell nucleus.
  • Membranous Staining: Staining ntawm daim nyias nyias ntawm tes yuav qhia tau tias kev ua haujlwm receptor lossis adhesion molecules.
• Pattern ntawm Staining: Tus qauv ntawm staining, suav nrog seb nws puas yog diffuse lossis focal, pab ntsuas kev faib thiab ntau ntawm cov antigen thiab yog siv los kuaj xyuas qee hom qog nqaij hlav lossis kab mob.
• Cov cim tshwj xeeb: Cov kab mob sib txawv yog txuam nrog cov cim tshwj xeeb. Piv txwv li, HER2 qhov zoo yog qhov tseem ceeb rau kev txiav txim siab txog kev kho mob qog noj ntshav hauv lub mis, thaum CD cov cim pab cais ntau hom lymphoma.

Ib txwm Range rau Immunohistochemistry

Txij li Immunohistochemistry yog ib qho txheej txheem siv los kuaj xyuas cov antigens tshwj xeeb, tsis muaj ib txwm "ib txwm muaj" rau kev xeem. Hloov chaw, cov txiaj ntsig tau raug txhais raws li seb lub hom phiaj antigen puas muaj nyob hauv cov qauv thiab cov qauv ntawm kev qhia. Ib qho txiaj ntsig zoo rau cov cim tshwj xeeb yuav qhia tias muaj mob qog noj ntshav lossis kab mob, thaum qhov tshwm sim tsis zoo yuav qhia tau tias nws tsis tuaj. Kev txhais lus nyob ntawm qhov chaw kho mob thiab cov cim tshwj xeeb raug kuaj.

Kev siv Immunohistochemistry

Immunohistochemistry muaj kev siv dav hauv kev kuaj mob, suav nrog:

• Cancer Diagnosis thiab Subtyping: IHC pab txheeb xyuas hom mob qog noj ntshav, txiav txim siab nws keeb kwm, thiab faib nws cov subtype (xws li mob qog noj ntshav mis, lymphoma).
• Kev txheeb xyuas cov kab mob qog nqaij hlav: Nws yog siv los kuaj pom muaj cov proteins xws li HER2 hauv kev mob qog noj ntshav mis lossis CD20 hauv qee hom qog ntshav qog ntshav.
• Kev kuaj mob autoimmune: IHC tuaj yeem pab tshawb pom muaj cov kab mob tiv thaiv kab mob tshwj xeeb lossis cov tshuaj tiv thaiv kab mob uas qhia cov kab mob autoimmune xws li lupus lossis mob caj dab rheumatoid.
• Infectious Disease Diagnosis: IHC yog siv los txheeb xyuas cov kab mob hauv cov ntaub so ntswg, suav nrog cov kab mob, kab mob, lossis kab mob parasitic.
• Kev Tshawb Fawb: Nws yog feem ntau siv hauv kev tshawb fawb los kawm txog cov protein qhia hauv cov ntaub so ntswg thiab cov hlwb kom nkag siab txog cov kab mob, tshwj xeeb tshaj yog hauv kev tsim tshuaj.
• Mob Cancer: IHC tuaj yeem pab txiav txim siab txog theem ntawm kev mob qog noj ntshav, tshwj xeeb tshaj yog nyob rau hauv cov xwm txheej uas txiav txim siab qhov kis ntawm tus kab mob yog qhov tseem ceeb.

10 Cov lus nug nquag nug txog Immunohistochemistry

1. Immunohistochemistry yog dab tsi? Immunohistochemistry yog ib qho kev kuaj mob uas siv cov tshuaj tiv thaiv kab mob los kuaj xyuas cov antigens tshwj xeeb hauv cov ntaub so ntswg. Nws yog siv los kuaj xyuas cov kab mob, tshwj xeeb yog mob qog noj ntshav, thiab txheeb xyuas qhov muaj cov proteins tshwj xeeb hauv cov hlwb.
2. Immunohistochemistry ua li cas? Cov ntaub so ntswg raug sau, feem ntau los ntawm kev kuaj ntshav. Cov qauv yog tom qab ntawd kho nrog cov tshuaj tiv thaiv tshwj xeeb rau cov proteins uas raug kuaj. Yog tias muaj cov tshuaj tiv thaiv tam sim no, nws khi rau cov tshuaj tiv thaiv kab mob thiab ua kom pom cov teeb liab, uas tau txheeb xyuas hauv lub tshuab tsom.
3. Cov xwm txheej twg tuaj yeem kuaj tau Immunohistochemistry? Immunohistochemistry yog siv los kuaj mob qog noj ntshav (xws li lub mis, ntsws, lossis lymphoma), kab mob autoimmune, thiab kab mob. Nws pab txiav txim qhov muaj thiab hom antigens uas tuaj yeem qhia tau tus kab mob.
4. Lub luag haujlwm ntawm Immunohistochemistry hauv kev kuaj mob qog noj ntshav yog dab tsi? IHC pab txheeb xyuas cov qog nqaij hlav xws li HER2, estrogen receptors, thiab progesterone receptors, uas yog qhov tseem ceeb rau kev kuaj mob qog noj ntshav, subtyping, thiab txiav txim siab cov kev kho mob tsim nyog.
5. Puas yog Immunohistochemistry invasive? Immunohistochemistry nws tus kheej tsis yog invasive. Txawm li cas los xij, nws yuav tsum muaj cov qauv ntaub so ntswg tau los ntawm cov txheej txheem xws li biopsy lossis phais, uas yuav muaj qee qhov tsis xis nyob nyob ntawm tus txheej txheem.
6. Nws siv sijhawm ntev npaum li cas thiaj tau txais cov txiaj ntsig los ntawm Immunohistochemistry? IHC cov txiaj ntsig feem ntau siv ob peb hnub rau ib lub lis piam, nyob ntawm qhov nyuaj ntawm qhov kev sim thiab qhov xav tau rau kev tshuaj xyuas ntxiv.
7. Qhov txiaj ntsig zoo Immunohistochemistry txhais li cas? Qhov txiaj ntsig zoo qhia tau tias lub hom phiaj antigen tau pom nyob rau hauv cov ntaub so ntswg. Hauv kev kuaj mob qog noj ntshav, qhov no tuaj yeem txhais tau tias muaj cov kab mob qog noj ntshav, thaum nyob hauv cov kab mob autoimmune, nws tuaj yeem qhia tias muaj cov kab mob tiv thaiv kab mob tshwj xeeb.
8. Qhov txiaj ntsig tsis zoo Immunohistochemistry txhais li cas? Qhov tshwm sim tsis zoo txhais tau hais tias tsis pom cov antigen hauv cov qauv ntaub so ntswg. Hauv kev kuaj mob qog noj ntshav, qhov no yuav qhia tau tias ib qho cim tshwj xeeb, xws li HER2 hauv kev mob qog noj ntshav mis, tsis tuaj.
9. Immunohistochemistry puas tuaj yeem siv rau kev mob qog noj ntshav? Yog lawm, IHC pab hauv kev mob qog noj ntshav los ntawm kev txheeb xyuas qhov loj ntawm cov qog loj hlob, kev sib kis, thiab kev qhia txog cov cim tshwj xeeb uas cuam tshuam rau kev kuaj mob thiab kev txiav txim siab kho mob.
10. Immunohistochemistry txawv ntawm lwm yam kev kuaj li cas? Tsis zoo li kev tshuaj ntsuam genetic tests lossis molecular diagnostics, Immunohistochemistry tsom rau cov protein qhia hauv cov qauv ntaub so ntswg, ua rau nws muaj txiaj ntsig tshwj xeeb rau kev pom thiab kuaj mob ntawm qib cellular.

xaus

Immunohistochemistry yog ib qho tseem ceeb rau kev kuaj mob hauv cov tshuaj niaj hnub no, muab kev nkag siab zoo rau qhov muaj thiab qhov xwm txheej ntawm cov kab mob, tshwj xeeb yog mob qog noj ntshav thiab mob autoimmune. Los ntawm kev kuaj xyuas cov antigens tshwj xeeb, nws pab cov kws kho mob kom kuaj xyuas cov xwm txheej, mob qog noj ntshav, thiab txawm tias txiav txim siab txog kev kho mob zoo tshaj plaws. Thaum cov txheej txheem tsis cuam tshuam, kev sau cov ntaub so ntswg tuaj yeem xav tau kev npaj ua tib zoo thiab kev paub txog kev kho mob.

Nkag siab txog cov txheej txheem Immunohistochemistry, nws siv, thiab txhais cov txiaj ntsig yuav ua li cas coj cov neeg mob thiab cov kws kho mob hauv kev txiav txim siab txog kev kuaj mob thiab kev kho mob. Txawm hais tias koj tab tom kuaj IHC rau kev kuaj mob qog noj ntshav lossis ua ib feem ntawm txoj kev tshawb fawb, txoj kev no yog lub hauv paus ntawm kev kuaj mob thiab kev tshawb fawb tsis tu ncua.