Cited by 82Ovarian cancer diagnosis and treatmentCancer, Hypoxia, and MetabolismEndometrial and Cervical Cancer Treatments

Prognostic significance of Hypoxia-Inducible Factor 1 alpha(HIF-1alpha) expression in serous ovarian cancer: an immunohistochemical study

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Daponte, Alexandros, Ioannou, Maria, Mylonis, Ilias, Simos, George, Minas, Marcos, Messinis, Ioannis E, Koukoulis, George·2008·BMC Cancer

Abstract

BACKGROUND: The hypoxia-inducible factor (HIF) has emerged as an attractive target for cancer therapy. The few publications addressing the prognostic significance of Hypoxia-Inducible Factor 1 alpha (HIF-1 alpha) cellular expression in ovarian cancer produced contradictory findings which are not permissible to widely acceptable conclusions and clinical applications. Our study was designed to investigate this by including a comparatively large number of cases and by using a combination of antibodies to analyze immunohistochemically the expression of HIF-1 alpha. METHODS: One hundred (n = 100) neoplastic and 20 benign (controls) pathological samples from paraffin-embedded tissue were included. They were classified after surgery as stage I (n = 23) and stage III G3 (n = 55). Also 22 borderline serous adenocarcinoma patients and 20 benign controls were stained. The mean follow up was 3 years. Only patients with the diagnosis of serous carcinoma of stage III, G3 who received 6 cycles of postoperative TC (175-180 mg/m2 paclitaxel and carboplatin after calculating the area under the concentration curve) with complete medical records (n = 55) were selected for survival analysis. The survival analysis of the samples compared two groups after the patients were dichotomized by HIF-1 alpha final score to positive and negative. RESULTS: The frequency of the nuclear expression of HIF-1 alpha in benign tumours was significantly lower (median: no expression) than in borderline and ovarian cancer tumours combined (p < 0.001). HIF-1 alpha expression in serous ovarian carcinoma was not stage dependent. The overall survival of patients with tumours that stained strongly for HIF-1 alpha was significantly shorter than that of patients with tumours that stained weakly or were negative for HIF-1 alpha (p = 0.01). Kaplan-Meier survival curves confirmed that HIF-1 alpha "positive" had decreased overall survival compared to HIF-1 alpha "negative" patients (p = 0.003) and this was an independent adverse prognostic factor (multivariable analysis p = 0.006). HIF-1 alpha "positive" patients displayed a shorter median progress free interval (PFI) (not statistically significant p > 0.05). Interestingly the overall PFI of the subgroup of patients that have undergone suboptimal cytoreduction at primary surgery (n = 21) with tumours that stained strongly for HIF-1 alpha was significantly worse than that of patients with tumours that stained weakly or were negative for HIF- 1 alpha (p = 0.03). CONCLUSION: Our report confirms the prognostic value of HIF-1 alpha when restricted to poorly differentiated serous ovarian carcinoma. In addition it shows that this association is elusive, since it is not only methodology-related but it can be antibody-depended. There is adequate evidence to speculate that targeting HIF-1 alpha could improve the long-term prognosis of these patients In order to increase the overall sensitivity of the immunoassay, maintaining acceptable levels of specificity, a panel of antibodies should be used.

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Crossref · 10.1186/1471-2407-8-335

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  • HIF-1α protein is overexpressed in various common solid malignant tumors including breast, colon, gastric, lung, skin, ovarian, pancreatic, prostate, and renal carcinomas compared to their respective normal tissues.

    “The HIF-1α protein is overexpressed in various common solid malignant tumors including breast, colon, gastric, lung, skin, ovarian, pancreatic, prostate, and renal carcinomas compared to their respective normal tissues.”

    From Therapeutic targeting of hypoxia and hypoxia-inducible factors in cancer (2016) · cites this paper as Daponte et al., 2008

    The Results (page unavailable) report HIF-1α protein expression in 60% of cancerous ovarian samples versus 14% of non-cancerous ovarian samples. The Discussion says expression has been noted in many tumor types, but our copy does not establish overexpression relative to normal tissue for the other eight named carcinomas. (LLM, conf=0.90)

    Experimental — accuracy not yet measured
  • Many benign tumors show very little or no HIF-1α expression.

    “In contrast, many benign tumors show very little or no HIF-1α expression (Zhong et al., 1999;Daponte et al., 2008;Simiantonaki et al., 2008;Mayer et al., 2008b).”

    From Therapeutic targeting of hypoxia and hypoxia-inducible factors in cancer (2016) · cites this paper as Daponte et al., 2008

  • Wenger et al. found that the suppressive effects of carboplatin and etoposide on mouse embryonic fibroblast proliferation were significantly increased when HIF-1α was deactivated.

    “Notably, Wenger et al. examined the impact of hypoxia on mouse embryonic fibroblast proliferation, and found that the suppressive effects of agents like carboplatin and etoposide on cell growth were significantly increased when HIF-1α was deactivated.296”

    From Drug repurposing for cancer therapy (2024) · cites this paper as [296]

    The Discussion links HIF-1α and hypoxia to possible chemoresistance in ovarian tumours, but does not report the claimed mouse embryonic fibroblast experiment. Searches for fibroblasts, carboplatin, etoposide, and HIF-1α deactivation found no passage describing that result; the References list Wenger works but do not establish this finding. (LLM, conf=0.76)

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Research works printed but not linked: 2

  1. Semenza GL Regulation of mammalian O2 homeostasis by hypoxia inducible factor 1 Annu Rev Cell Dev Biol 1999 15 551 78 10611972
  2. Semenza GL Targeting HIF-1 for cancer therapy Nat Rev Cancer 2003 3 721 32 13130303

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Authors
Daponte, A., Ioannou, M., Mylonis, I., Simos, G., Minas, M., Messinis, I. E., & Koukoulis, G.
Affiliations
University of Thessaly (GR)
Corresponding author
Daponte, Alexandros
Venue
BMC Cancer
Published
2008-11-16
Volume
8
Issue
1
Pages
335-335
ISSN
1471-2407 (ISSN-L)
OpenAlex
W2114133947
Cited by
82
References
34
Citations by year
2026: 2 · 2025: 3 · 2024: 5 · 2023: 7 · 2022: 6 · 2021: 6 · 2020: 8 · 2019: 5 · 2018: 4 · 2017: 2 · 2016: 4 · 2015: 2 · 2014: 7 · 2013: 6 · 2012: 4
FWCI
4.26
Type
journal article
Language
en
Open access
Locations
  • BMC Cancer (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • University of Thessaly Institutional Repository (University of Thessaly) (submittedVersion)
Topics
  • Health Sciences › Medicine › Reproductive Medicine › Ovarian cancer diagnosis and treatment
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Cancer, Hypoxia, and Metabolism
  • Health Sciences › Medicine › Obstetrics and Gynecology › Endometrial and Cervical Cancer Treatments
Keywords
HIF-1α, HIF-1, serous ovarian cancer, prognostic factors, overall survival, progression-free interval, paclitaxel, carboplatin, tumor hypoxia, tumor angiogenesis, TNF-α, tumor cell proliferation
MeSH terms
Female, Humans, Immunohistochemistry, Neoplasm Staging, Ovarian Neoplasms, Prognosis, Survival, Gene Expression, Hypoxia-Inducible Factor 1, alpha Subunit

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