Immunohistochemical expression of mismatch repair proteins (MSH2, MSH6, MLH1, and PMS2) in prostate cancer: correlation with grade groups (WHO 2016…
Authors of this article are:
Albero-González R, Hernández-Llodrà S, Juanpere N, Lorenzo M, Lloret A, Segalés L, Duran X, Fumadó L, Cecchini L, Lloreta-Trull J.
A summary of the article is shown below:
The role of DNA MMR genes in prostate cancer (PrCa) is controversial, as genetic alterations leading to microsatellite instability are incompletely defined in these tumors. ERG rearrangements and PTEN loss are concomitant events in PrCa. The aim of this study has been to analyze the immunohistochemical (IHC) expression of MSH2, MSH6, MLH1, PMS2, ERG, and PTEN and their potential association with the grade group (GG) grading system (WHO 2016) and PSA recurrence in a series of 200 PrCa (PSMAR-Biobank, Barcelona, Spain). MSH2, MLH1, PMS2, and PTEN losses were documented in 8%, 5%, 2%, and 36.5%, respectively. ERG expression was found in 48%. MSH6 showed an increase of expression with respect to basal levels in 42.1% of the cases. A statistical association between MSH6 overexpression and GG5 was found (p = 0.0281). ERG-wild-type cases were associated with single MSH2 loss (p = 0.024), and MSH2 and/or MLH1 loss (p = 0.019). The percentage of cases with PTEN loss was 20.5% (8/39) in GG1, 37.6% (53/141) of clustered GG2 to 4, and 60% (12/20) of GG5 (chi-square test, p = 0.01). Thus, PTEN expression loss was statistically more frequent in the upper-grade tumors. PMS2 loss was an infrequent event, but it was statistically associated with shorter time to PSA recurrence (p = 0.011). These results suggest the existence of an alternative non-ERG pathway associated with MSH2 or MLH1 expression loss. MSH6 overexpression could be a marker of aggressiveness in PrCa. The IHC assessment of DNA MMR proteins, ERG and PTEN, could identify different altered PrCa pathways, which could aid patient stratification.
Check out the article’s website on Pubmed for more information:
This article is a good source of information and a good way to become familiar with topics such as: Biomarkers, Tumor;DNA Mismatch Repair;Humans;Immunohistochemistry;Male;Middle Aged;Neoplasm Grading;Neoplasm Recurrence, Local;PTEN Phosphohydrolase;Prostatic Neoplasms;Transcriptional Regulator ERG.
New Chemicals from MOLECULAR DEPOT
-
- Sale!
- Chemicals, Interference, Lipids
Triglyceride Mix for Interference Testing
- Original price was: $495.00.$295.00Current price is: $295.00.
- Add to cart
-
- Sale!
- Chemicals
Microparticle Stabilizer Solution
- Original price was: $595.00.$295.00Current price is: $295.00.
- Add to cart
-
- Sale!
- Buffers & Solutions, Chemicals
Enzyme Acceptor Stabilization Buffer
- Original price was: $495.00.$250.00Current price is: $250.00.
- Add to cart
-
- Sale!
- Buffers & Solutions, Chemicals
Enzyme Donor Stabilization Buffer
- Original price was: $495.00.$250.00Current price is: $250.00.
- Add to cart
-
- Sale!
- Chemicals, Conjugates
Progesterone Biotin Conjugate Solution
- Original price was: $650.00.$350.00Current price is: $350.00.
- Add to cart
-
- Sale!
- Buffers & Solutions, Chemicals
Microparticle Activation Buffer
- Original price was: $595.00.$295.00Current price is: $295.00.
- Add to cart
-
- Sale!
- Buffers & Solutions, Chemicals
Microparticle Washing Buffer
- Original price was: $595.00.$295.00Current price is: $295.00.
- Add to cart
-
- Sale!
- Buffers & Solutions, Chemicals
Microparticle Blocking Buffer
- Original price was: $650.00.$350.00Current price is: $350.00.
- Add to cart
-
- Sale!
- Buffers & Solutions, Chemicals
Microparticle Anti Aggregation Agent
- Original price was: $595.00.$295.00Current price is: $295.00.
- Add to cart
-
- Sale!
- Chemicals
CPRG (Chlorophenol red-β-D-galactopyranoside)
- Original price was: $850.00.$395.00Current price is: $395.00.
- Add to cart
New Proteins from MOLECULAR DEPOT
-
- Sale!
- Proteins, Conjugates
Tacrolimus BSA Conjugate Solution
- Original price was: $695.00.$495.00Current price is: $495.00.
- Add to cart
-
- Sale!
- Enzymes, Proteins
Cholesterol Oxidase from Streptomyces sp.
- Original price was: $595.00.$295.00Current price is: $295.00.
- Add to cart
-
- Sale!
- Proteins
Aprotinin from Bovine Lung (Lyophilized powder)
- Original price was: $450.00.$250.00Current price is: $250.00.
- Add to cart
-
- Sale!
- Proteins, Enzymes
Beta-galactosidase Enzyme Donor
- Original price was: $795.00.$450.00Current price is: $450.00.
- Add to cart
-
- Sale!
- Proteins, Enzymes
Beta-galactosidase Enzyme Acceptor
- Original price was: $795.00.$375.00Current price is: $375.00.
- Add to cart
-
- Sale!
- Enzymes, Proteins
Xanthine Oxidase Grade II (Lyophilized Powder)
- Original price was: $695.00.$395.00Current price is: $395.00.
- Add to cart
-
- Sale!
- Proteins, Enzymes
Ascorbate Oxidase (Lyophilized Powder)
- Original price was: $350.00.$250.00Current price is: $250.00.
- Add to cart
-
- Sale!
- Proteins
Silk Fibroin (Bombyx Mori Silkworm)
- Original price was: $595.00.$295.00Current price is: $295.00.
- Add to cart
-
- Sale!
- Proteins
Fibrinogen from Bovine Plasma Lyophilized
- Original price was: $595.00.$295.00Current price is: $295.00.
- Add to cart
-
- Sale!
- Proteins, Enzymes
Horseradish Peroxidase Biotinylated
- Original price was: $595.00.$295.00Current price is: $295.00.
- Add to cart
New Antibodies from MOLECULAR DEPOT
-
- Sale!
- Antibodies
Antibody to Thyroxine T4 Monoclonal
- Original price was: $995.00.$495.00Current price is: $495.00.
- Add to cart
-
- Antibodies
SAA Antibody Monoclonal Anti-Serum Amyloid A
- $350.00 – $1,550.00
- Select options
-
- Antibodies
Valproic Acid Antibody (Mouse Monoclonal)
- $250.00 – $1,095.00
- Select options
-
- Antibodies
Phenytoin Antibody (Mouse Monoclonal)
- $350.00 – $1,450.00
- Select options
-
- Sale!
- Antibodies
Anti Sheep IgG (H+L) Rabbit Polyclonal
- $250.00 – $1,495.00
- Select options
-
- Sale!
- Antibodies
Anti Human IgM Antibody Polyclonal
- Original price was: $595.00.$295.00Current price is: $295.00.
- Add to cart
-
- Sale!
- Antibodies
Myoglobin Antibody (Human Affinity Purified)
- Original price was: $650.00.$350.00Current price is: $350.00.
- Add to cart
-
- Sale!
- Antibodies, Interference
Rheumatoid Factor Interference Blocker
- Original price was: $595.00.$395.00Current price is: $395.00.
- Add to cart
-
- Sale!
- Antibodies, Interference
HAMA Blocking Reagent (Affinity Purified)
- Original price was: $895.00.$450.00Current price is: $450.00.
- Add to cart
New Research Kits from MOLECULAR DEPOT
-
- Sale!
- Interference, Research Kits
Interference Test Kit
- Original price was: $595.00.$395.00Current price is: $395.00.
- Add to cart
-
- Sale!
- Research Kits
Alpha Complementation Kit Beta-galactosidase
- Original price was: $1,395.00.$695.00Current price is: $695.00.
- Add to cart
-
- Sale!
- Research Kits
Crystallization Screen for Protein-DNA Complexes
- Original price was: $1,295.00.$650.00Current price is: $650.00.
- Add to cart
-
- Sale!
- Molecular Biology, Research Kits
NativeFolder Bacterial Culture Medium
- $350.00 – $19,500.00
- Select options
-
- Sale!
- Research Kits
CycloScreen: Cyclodextrins Kit for Screening
- Original price was: $595.00.$295.00Current price is: $295.00.
- Add to cart
-
- Sale!
- Research Kits
NativePro Bradford Protein Assay Kit (Automated)
- Original price was: $995.00.$495.00Current price is: $495.00.
- Add to cart
-
- Sale!
- Interference, Research Kits
Rheumatoid Factor Interference Kit
- Original price was: $1,495.00.$695.00Current price is: $695.00.
- Add to cart
-
- Sale!
- Interference, Research Kits
Interference Test Kit EXTRA
- Original price was: $795.00.$495.00Current price is: $495.00.
- Add to cart
-
- Sale!
- Interference, Research Kits
HAMA Interference Kit
- Original price was: $895.00.$595.00Current price is: $595.00.
- Add to cart
-
- Sale!
- Buffers & Solutions, ELISA, Research Kits
ELISA Microplate Production Kit
- Original price was: $795.00.$495.00Current price is: $495.00.
- Add to cart