Facebook

2017年1月5日 星期四

[醫如往常] Senior Clerkship Day 110: Pathology: IHC Markers

IHC Markers
鄭醫師
------------
Pleomorphic undifferentiated sarcoma(abbreviated PUS), also undifferentiated pleomorphic sarcoma and previously malignant fibrous histiocytoma(abbreviated MFH), is a type of soft tissue sarcoma.

PUS occurs most commonly in the extremities and retroperitoneum, but has been reported in other sites. Metastasisoccurs most frequently in the lungs (90%), bones (8%), and liver(1%).

------------
IHC
Peroxidase
Purple DAB+H2O2->O2+H2O+brown DAB
AEC紅色

Fab+Fc<2nd Ab< enzyme

avidin biotin complex 許世明副院長
Endogenous biotin background interference

Fab+Fc<2nd Ab-PPP 只要三小時

一次抽血
Mouse 200 ul
Rabbit 50 ml

------------
Counterstain
Blue hematoxylin

------------
Melanoma
S-100 (paraganglion也有)
HMG45
------------
Glioma(Astro, Ependymomas, GBM)
GFAP; glial fibrillary actin protein

Oligodendroma
FISH: 1p19q 自費一萬元
------------
Hematology
T CD3
B CD20
NK CD56
Macrophage CD68
Myeloid MPO
Hodgkin CD30
------------
Sarcoma
Rhabdomyosarcoma, embryonal: mRNA myogenin
Leiomyosarcoma: desmin
Angiosarcoma CD31

Liposarcoma lipoblast
Amplification of MDM2, CDK4

GIST
C-kit
Dog-1

Synovial sarcoma
CK, TLE-1

MPNST
s-100(-), fibroblast H3K27Me3

不用染IHC:
Osteosarcoma osteoid
Chondrosarcoma cartilage
------------
Carcinoma
Squamous cell carcinoma
P40
(p63, squamous, basal 都有)

Cervix HPV 抑制p105RB, 表現p16
------------
Adenocarcinoma
Prostate: PSA
Lung: TTF-1 (Routine 已經變成用分子定義了)
ALK1

Breast: ER, PR, Her2, GATA3
Liver: HepPar 1 (直接到liver cells到老鼠做出來的antibody, antigen不明) sensitivity 80%
Arginase 1: sensitivity 90%


Stomach, Colon: CDX-2 (mRNA)
Gyn/GU: Pax-8 (mRNA)

Pancreas, gall bladder: morphology

Stomach: annexin A10 for signet ring cells
------------
Molecule
EGFR
KRAS
------------
IHC
Herpes
CMV

NTUH沒有進:
Adenovirus
Helicobacter pylori
------------
Collision tumor
gastrointestinal epithelial malignant tumor (EMT)
epithelialmesenchymal transition (EMT)
------------


沒有留言:

張貼留言

歡迎指教