Home | About IJMPO | Editorial board | Search | Ahead of print | Current Issue | Archives | Instructions | Subscribe | Advertise | Contact us |  Login 
Indian Journal of Medical and Paediatric Oncology
Search Article 
  
Advanced search 
 
ORIGINAL ARTICLE
Year : 2019  |  Volume : 40  |  Issue : 5  |  Page : 54-60

A study of hormone receptor status in breast carcinoma and use of HER2-targeted therapy in a tertiary care center of India


1 Department of Radiotherapy, SMS Medical College and Attached Group of Hospitals, Jaipur, Rajasthan, India
2 Department of Pathology, SMS Medical College and Attached Group of Hospitals, Jaipur, Rajasthan, India
3 Department of Radiation Oncology, Shalby Hospital, Jaipur, Rajasthan, India

Correspondence Address:
Kartick Rastogi
Department of Radiotherapy, SMS Hospital, Jaipur, Rajasthan
India
Login to access the Email id

Source of Support: None, Conflict of Interest: None


DOI: 10.4103/ijmpo.ijmpo_172_17

Rights and Permissions

Aims: The aim is to study the hormone receptor status, association of HER2 expression with prognostic factors and use of HER2-targeted therapy in North Indian breast cancer patients. Subjects and Methods: Immunohistochemistry reports of 288 breast cancer patients registered in the department of Radiotherapy, SMS Medical College, Jaipur in 2015–2016 were analyzed for estrogen receptor (ER), progesterone receptor (PR), and c-erb B-2 protein (HER2/neu) expression. Equivocal HER2 (2+) was further confirmed by fluorescent in situ hybridization (FISH). Number of patients receiving HER2/neu-targeted therapy was also studied. Results: For ER, positive status was more common (56%), whereas for PR and HER2/neu, negative status was more common (59% and 60% resp.). HER2 status was unknown for 25% patients. The percentage of equivocal HER2 (immunohistochemistry 2+) cases showing amplification on FISH was also high (56.7%). The percentage of eligible cases for targeted therapy actually receiving it was low (28%). The percentage of triple negative phenotype (ER-/PR-/HER2-) was high (29.8%). Triple-negative breast cancer phenotype was more common in young-aged premenopausal women but was not statistically significant. All HER2/neu + cases were infiltrating ductal carcinoma. HER2/neu expression was significantly higher with large tumor size (P = 0.001), high tumor grade (P < 0.001), advanced stage (P = 0.001), greater number of positive lymph nodes (P = 0.02), and ER/PR negativity (P < 0.001). Conclusions: Most of the breast cancer patients are ER and/or PR positive and HER2/neu negative. The percentage of triple-negative phenotype is higher. More than half of HER2/neu 2+ cases show amplification on FISH assay. The percentage of eligible patients actually receiving targeted therapy is low. HER2/neu protein expression is significantly higher with adverse features such as large tumor size, high grade, advanced stage, greater number of positive lymph nodes, and ER/PR negativity.


[FULL TEXT] [PDF]*
Print this article     Email this article
 Next article
 Previous article
 Table of Contents

 Similar in PUBMED
   Search Pubmed for
   Search in Google Scholar for
 Related articles
 Citation Manager
 Access Statistics
 Reader Comments
 Email Alert *
 Add to My List *
 * Requires registration (Free)
 

 Article Access Statistics
    Viewed287    
    Printed5    
    Emailed0    
    PDF Downloaded41    
    Comments [Add]    

Recommend this journal