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Hormone receptor mR...
Hormone receptor mRNA and protein levels as predictors of premenopausal tamoxifen benefit
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- Engström, Terese (författare)
- Lund University,Lund Univ, Sweden
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- Ekholm, Maria (författare)
- Linköpings universitet,Linköping University,Ryhov County Hospital, Jönköping,Avdelningen för kirurgi, ortopedi och onkologi,Medicinska fakulteten,Ryhov Hosp, Sweden
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- Fernö, Mårten (författare)
- Lund University,Lunds universitet,Medicinsk onkologi,Sektion I,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Individuell Bröstcancerbehandling,Forskargrupper vid Lunds universitet,LUCC: Lunds universitets cancercentrum,Övriga starka forskningsmiljöer,Medical oncology,Section I,Department of Clinical Sciences, Lund,Faculty of Medicine,Personalized Breast Cancer Treatment,Lund University Research Groups,LUCC: Lund University Cancer Centre,Other Strong Research Environments,Lund Univ, Sweden
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- Lundgren, Christine (författare)
- Linköpings universitet,Avdelningen för kirurgi, ortopedi och onkologi,Medicinska fakulteten,Lund Univ, Sweden; Ryhov Hosp, Sweden
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- Nordenskjöld, Bo (författare)
- Linköpings universitet,Linköping University,Avdelningen för kirurgi, ortopedi och onkologi,Medicinska fakulteten,Region Östergötland, Onkologiska kliniken US
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- Stål, Olle (författare)
- Linköpings universitet,Linköping University,Avdelningen för kirurgi, ortopedi och onkologi,Medicinska fakulteten,Region Östergötland, Onkologiska kliniken US
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- Bendahl, Pär Ola (författare)
- Lund University,Lunds universitet,Individuell Bröstcancerbehandling,Forskargrupper vid Lunds universitet,The Liquid Biopsy och Tumörprogression i Bröstcancer,LUCC: Lunds universitets cancercentrum,Övriga starka forskningsmiljöer,Personalized Breast Cancer Treatment,Lund University Research Groups,The Liquid Biopsy and Tumor Progression in Breast Cancer,LUCC: Lund University Cancer Centre,Other Strong Research Environments,Lund Univ, Sweden
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- Tutzauer, Julia (författare)
- Lund University,Lunds universitet,LUCC: Lunds universitets cancercentrum,Övriga starka forskningsmiljöer,Bröstcancerbehandling,Sektion I,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,LUCC: Lund University Cancer Centre,Other Strong Research Environments,Breast cancer treatment,Section I,Department of Clinical Sciences, Lund,Faculty of Medicine,Lund Univ, Sweden
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- Rydén, Lisa (författare)
- Lund University,Lunds universitet,Bröstcancerkirurgi,Forskargrupper vid Lunds universitet,The Liquid Biopsy och Tumörprogression i Bröstcancer,LUCC: Lunds universitets cancercentrum,Övriga starka forskningsmiljöer,Breast Cancer Surgery,Lund University Research Groups,The Liquid Biopsy and Tumor Progression in Breast Cancer,LUCC: Lund University Cancer Centre,Other Strong Research Environments,Skåne University Hospital,Lund Univ, Sweden; Skane Univ Hosp, Sweden
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(creator_code:org_t)
- Medical Journal Sweden AB, 2024
- 2024
- Engelska 12 s.
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Ingår i: Acta Oncologica. - : Medical Journal Sweden AB. - 0284-186X .- 1651-226X. ; 63, s. 125-136
- Relaterad länk:
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http://dx.doi.org/10... (free)
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https://lup.lub.lu.s...
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https://doi.org/10.2...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- Background and purpose: Tamoxifen remains an important adjuvant treatment in premenopausal patients with hormone receptor-positive breast cancer. Thus, determination of hormone receptors is important. Here, we compare cytosol-based methods, immunohistochemistry (IHC), and gene expression (GEX) analysis for determining hormone receptor status in premenopausal breast cancer patients from a randomised tamoxifen trial, to evaluate their performance in identifying patients that benefit from tamoxifen. Patients and Methods: Premenopausal patients (n=564) were randomised to 2 years of tamoxifen or no systemic treatment. Estrogen receptor (ER) and progesterone receptor (PR) status by protein expression measured by cytosol-based methods and IHC, and mRNA by GEX analysis were compared in 313 patients with available data from all methods. Kaplan Meier estimates and Cox regression were used to evaluate the treatment-predictive value for recurrence-free interval (RFi) and overall survival (OS). Median follow-up for event-free patients was 26 (RFi) and 33 (OS) years. Results: The mRNA data of ESR1 and PGR distributed bimodally, patterns confirmed in an independent cohort. Kappa-values between all methods were 0.76 and 0.79 for ER and PR, respectively. Tamoxifen improved RFi in patients with ER-positive (ER+) or PR-positive (PR+) tumours (Hazard Ratio [HR] and 95% confidence interval [CI]), cytosol-ER+ 0.53 [0.36–0.79]; IHC-ER+ 0.55 [0.38–0.79]; GEX-ER+ 0.54 [0.37–0.77]; cytosol-PR+ 0.49 [0.34–0.72]; IHC-PR+ 0.58 [0.40–0.85]; GEX-PR+ 0.55 [0.38–0.80]). Results were similar for OS. Interpretation: These methods can all identify patients that benefit from 2 years of tamoxifen with equal performance, indicating that GEX data might be used to guide adjuvant tamoxifen therapy.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Cancer och onkologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Cancer and Oncology (hsv//eng)
Nyckelord
- breast cancer
- estrogen receptor status
- predictive information
- premenopausal patients
- progesterone receptor status
- randomized trial
- tamoxifen
- breast cancer; tamoxifen; premenopausal patients; randomized trial; estrogen receptor status; progesterone receptor status; predictive information
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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