Expression of Ki-67 and Prognosis of Breast Invasive Carcinoma in Congolese Women
Nday Guy,
Kabamba Michel,
Mukalay Abdon,
Tshilombo François,
Odimba Etienne,
Lebwaz Bienvenu,
Kalenga Prospère,
Ilunga Julien
Issue:
Volume 3, Issue 1, February 2018
Pages:
1-9
Received:
26 January 2018
Accepted:
24 February 2018
Published:
19 March 2018
Abstract: Breast invasive carcinoma is the most cancer in the world. In low resource countries, cancer are of poor prognosis for they are diagnosed at later stage. There is not a cancer registry in the Democratic Republic of Congo and studies on biomarkers are lacking. This study had the main purpose to determine the expression of Ki-67 and the prognosis of invasive breast carcinoma in Congolese women. Cross-sectional study of 86 women with invasive Breast Carcinoma were included in the Democratic Republic of Congo from Kinshasa (n=73) and Lubumbashi Cities (n= 13). Age at the time of diagnosis, tumor size, tumor necrosis, grade of tumor and proliferation index measured by Ki-67 were taken into account. Statistical analysis used SPSS program and Pearson Chi-square test. From 2014 to 2016, biopsies were collected from 86 Congolese patients to determine the expression of Ki-67 and the prognosis of invasive breast carcinoma. The proliferation marker was observed in 91.9%. K-i67 > 20% and > 30% were found respectively in 55.8% and in 33.7% of patients. The value of the Ki-67 was influenced by the tumor stage. The association between the size of the tumor and Ki-67 was statistically significant. The risk of tumor necrosis was 2.9 times in case of tumor with positive Ki-67. Ki-67 was positive in many patients younger than 45 years. However, the difference was not statistically significant. In patients with T3 and T4 tumors, the risk of positive Ki-67 was 7 times compared to those of T1 and T2 tumors. Patients with G3 tumors had 9 times the risk to have positive Ki-67 compared to those with G1 and G2 tumors. In conclusion, tumors in Congolese women are associated with higher proliferation index and poor prognosis for most of them are diagnosed at later stage. Chemotherapy can be justified for prior care in low resource countries and radical mastectomy should be encouraged.
Abstract: Breast invasive carcinoma is the most cancer in the world. In low resource countries, cancer are of poor prognosis for they are diagnosed at later stage. There is not a cancer registry in the Democratic Republic of Congo and studies on biomarkers are lacking. This study had the main purpose to determine the expression of Ki-67 and the prognosis of ...
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Correlation of TAZ Immunohistochemistry Expression and Breast Carcinoma
Rafah Mohammed Jaffar Alkhateeb,
Salim Rashid Alaubaidy
Issue:
Volume 3, Issue 1, February 2018
Pages:
10-13
Received:
6 March 2018
Accepted:
20 March 2018
Published:
12 April 2018
Abstract: Overexpression of TAZ induces cell transformation and tumor-forming ability in mammary epithelial cells. The deactivation of the Hippo pathway, which leads to up regulation of YAP and TAZ is frequently observed in many human cancers. The study samples included seventy four formalin-fixed, paraffin embedded tissue blocks which have been diagnosed as forty four cases of breast carcinoma and their lymph nodes. In the present study from 74 total cases, 33cases (44.6%) were showing TAZ marker positive while 41cases (55.4%) were showing negative immunohistochemistry for TAZ marker. Sub classification of malignant cases, 11 malignant breast cancer cases (25%) showed no TAZ expression, while 20 malignant cases (45.5%) were strongly positive for TAZ expression. There is significant correlation between breast carcinoma grade, stage and TAZ expression.
Abstract: Overexpression of TAZ induces cell transformation and tumor-forming ability in mammary epithelial cells. The deactivation of the Hippo pathway, which leads to up regulation of YAP and TAZ is frequently observed in many human cancers. The study samples included seventy four formalin-fixed, paraffin embedded tissue blocks which have been diagnosed as...
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