Aspects of Progression in Breast Carcinoma: from ductal carcinoma in situ to invasive cancer

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MARC

Zhou, Wenjing,1979-Uppsala universitet,Institutionen för kirurgiska vetenskaper (author)

Aspects of Progression in Breast Carcinoma : from ductal carcinoma in situ to invasive cancer

BookEnglish2012

Publisher, publication year, extent ...

Uppsala :Acta Universitatis Upsaliensis,2012
38 s.
electronicrdacarrier

Numbers

LIBRIS-ID:oai:DiVA.org:uu-166745
ISBN:9789155482565
https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-166745URI

Supplementary language notes

Language:English
Summary in:English

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SwePubSwePub

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Subject category:vet swepub-contenttype
Subject category:dok swepub-publicationtype

Series

Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Medicine,1651-6206 ;735

Notes

In the past decades our knowledge concerning breast cancer progression from ductal carcinoma in situ (DCIS) to invasive cancer has grown rapidly. However, molecular factors driving the progression are still largely unknown.In the first study, we investigated tumor evolution in breast cancer by analyzing TP53 mutation status in tumors from various stages of the disease. Presence of the same TP53 mutations in both DCIS and invasive components from the same tumor indicates same cellular origin. The role of mutant TP53 in the progression of breast cancer is less clear and may vary between subtypes.In the second study, we studied the prognosis of basal-like DCIS in a large population-based cohort. Basal-like DCIS was associated with about doubled but not statistically significant risk for local recurrence compared with the other molecular subtypes. Molecular subtype was a better prognostic parameter than histopathological grade.In the third study, we studied markers in primary DCIS in relation to type of recurrence. Interestingly, recurrences after an ER-/HER2+, ER negative or EGFR positive primary DCIS were more often of the in situ type. The molecular subtype ER+/HER2+, FOXA1 positivity and FOXC1 positivity were risk factors for any recurrence.In the fourth study, we proposed a histological classification system for a new entity: neoductgenesis. We also evaluated histologic criteria for neoductgenesis. According to our criteria, good agreements among pathologists were achieved. Neoductgenesis was related to more aggressive tumor biology and to mammographic features. The result indicates potential benefits for women earlier considered having pure DCIS but later diagnosed as breast carcinoma with neoductgenesis, suggesting a need to develop appropriate treatment regiments. Our findings have to be repeated and the relation to prognosis warrants further studies.

Subject headings and genre

MEDICIN OCH HÄLSOVETENSKAP Klinisk medicin Cancer och onkologi hsv//swe
MEDICAL AND HEALTH SCIENCES Clinical Medicine Cancer and Oncology hsv//eng
progression
ductal carcinoma in situ
breast cancer
Medicinsk vetenskap
Medical Science

Added entries (persons, corporate bodies, meetings, titles ...)

Wärnberg, FredrikUppsala universitet,Institutionen för kirurgiska vetenskaper (thesis advisor)
Fjällskog, Marie-LouiseUppsala universitet,Institutionen för radiologi, onkologi och strålningsvetenskap (thesis advisor)
Blomqvist, Carl,professorDepartment of Oncology, Helsinki University Central Hospital (thesis advisor)
Sund, Malin,docentDepartment of Medical Biosciences, Umeå University (opponent)
Uppsala universitetInstitutionen för kirurgiska vetenskaper (creator_code:org_t)

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