ArticleHeliyon2017
Down-regulation of hK7 in the sera of breast cancer and benign breast disease patients.
Article in Heliyon, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
4 citing papers in PubMed, 8 citations in OpenAlex.
- Dysregulated serum levels of human tissue kallikreins, hK7 and hK10, as potential biomarkers of asthma.Biochemistry and biophysics reports · 2026Article
- Prognostic value of kallikrein-related peptidase 7 (KLK7) mRNA expression in advanced high-grade serous ovarian cancer.Journal of ovarian research · 2020Article
- High levels of KLK7 protein expression are related to a favorable prognosis in triple-negative breast cancer patients.American journal of cancer research · 2020Article
- Analysis of expression and prognosis of KLK7 in ovarian cancer.Open medicine (Warsaw, Poland) · 2020Article
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Authors and funding
4 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
introductionBreast cancer is known as a leading cause of cancer-related death among women all over the world. Biomarkers facilitate diagnosis at the earliest possible stage and better prognosis of the disease. Hence, may help to improve the overall survival rate among breast cancer patients. To find a better diagnostic/prognostic marker we evaluated human tissue kallikrein 7 (hK7) as biomarker of breast cancer. hK7 is a secreted serine protease having chymotrypsin like activity. Serum hK7 is known to have aberrant expression in ovarian and prostate cancer but has not been yet studied in breast cancer. However, the expression level of KLK7 mRNA in breast cancer tissues has been indicated as a better prognostic marker for the unfavorable prognosis of breast carcinoma. MATERIALS AND
methodsIn this study a time-resolved immunofluorometric indirect back titration ELISA (bt-ELISA) was employed for the quantification of hK7 in serum of breast cancer patients (n = 47), benign breast disease patients (n = 13) alongwith the gender and age group specific controls (n = 99).
resultshK7 was significantly down-regulated in the sera of female breast cancer patients (p < 0.0001; Mean 0.704 ± 0.533 μg/L) and benign breast disease patients (p = 0.0008; Mean 0.651 ± 0.584) as compared to normal controls (Mean 1.665 ± 1.174 μg/L).
conclusionsDown regulation of hK7 suggests the possible role of this protein in natural course of breast cancer and benign breast diseases. Study should be extended on large-scale to confirm the potential of hK7 as biomarker of breast cancer.
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