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Heme biosynthesis in human breast cancer—mimetic “in vitro” studies and some heme enzymic activity levels
Open accessAbstract
1. Porphyrin biosynthesis from delta-aminolevulinic acid (ALA) was investigated using the technique of tissue explant cultures, in both human breast cancer and its original normal tissue. 2. The activity of ALA-dehydratase, porphobilinogenase and uroporphyrinogen decarboxylase was directly determined in both tumor and normal mammary tissues. 3. Porphyrin synthesis capacity of human breast carcinoma was 20-fold enhanced, as compared with normal tissue, at least between the stages of porphobilinogen and coproporphyrinogen formation. 4. The activity of the three enzymes examined was always lower in normal tissue than in tumoral tissue. 5. Present findings show that porphyrin biosynthesis is increased in breast cancer tissue.
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Enhanced activity of enzymes leading to production of PpIX, such as ALAD, UROD, or PBGD, has been observed in tumor cells.
“Enhanced activity of enzymes leading to production of PpIX, such as ALAD [43], UROD [43], or PBGD [38,43,44] has also been observed in tumor cells.”
From Aminolevulinic Acid (ALA) as a Prodrug in Photodynamic Therapy of Cancer (2011) · cites this paper as [43]
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References 28 · Cited by 103
Research works printed but not linked: 28
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Metadata
- Authors
- Navone, N. M., Polo, C. F., Frisardi, A. L., Andrade, N. E., & del C. Baille, A. M.
- Affiliations
- Consejo Nacional de Investigaciones Científicas y Técnicas (AR)
- ORCID
- Navone, Nora M.
- Venue
- International Journal of Biochemistry
- Publisher
- Elsevier BV
- Published
- 1990-01
- Volume
- 22
- Issue
- 12
- Pages
- 1407-1411
- ISSN
- 0020-711X (ISSN-L)
- OpenAlex
- W2032803546
- Cited by
- 103
- References
- 28
- Citations by year
- 2026: 2 · 2025: 2 · 2024: 1 · 2023: 4 · 2022: 3 · 2021: 3 · 2020: 5 · 2019: 3 · 2018: 3 · 2017: 5 · 2016: 1 · 2015: 5 · 2014: 3 · 2012: 2
- FWCI
- 0.70
- Type
- journal article
- Language
- en
- Open access
- green
- hdl.handle.net
- Licence
- Locations
- International Journal of Biochemistry (publishedVersion)
- PubMed (publishedVersion)
- Repositorio Digital Institucional de la Universidad de Buenos Aires (Universidad de Buenos Aires) (publishedVersion, other-oa)
- LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) (publishedVersion, other-oa)
- Greater South Information System
- Funders
- Consejo Nacional de Investigaciones Científicas y Técnicas
- Topics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Porphyrin Metabolism and Disorders
- Physical Sciences › Materials Science › Materials Chemistry › Porphyrin and Phthalocyanine Chemistry
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Photodynamic Therapy Research Studies
- Keywords
- heme biosynthesis, breast cancer, porphyrin synthesis, 5-aminolevulinic acid, delta-aminolevulinic acid dehydratase, uroporphyrinogen decarboxylase, explant culture, enzyme activity
- MeSH terms
- Adult, Aged, Porphobilinogen Synthase, Ammonia-Lyases, Breast, Breast Neoplasms, Female, Heme, Humans, Middle Aged, Uroporphyrinogen Decarboxylase, Culture Techniques
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