Evidence map›Paper›PMID 42655830›Full record

ArticleVeterinary sciences2026

Exploring the Immunohistochemical Expression of Iron-Related Proteins in Non-Metastatic and Metastatic Feline Mammary Carcinomas.

Rebecca Leandri, Giorgia Rosato, Teresa Chianese, Evaristo Di Napoli, Manuela Martano, Karen Power

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Article in Veterinary sciences, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

6 authors.

Rebecca LeandriDepartment of Biology, University of Naples Federico II, 80126 Naples, Italy.ORCID 0009-0006-1509-5294
Giorgia RosatoDepartment of Biology, University of Naples Federico II, 80126 Naples, Italy.ORCID 0009-0005-9508-9953
Teresa ChianeseDepartment of Biology, University of Naples Federico II, 80126 Naples, Italy.
Evaristo Di NapoliDepartment of Veterinary Medicine and Animal Productions, University of Naples Federico II, 80126 Naples, Italy.ORCID 0009-0008-6975-1482
Manuela MartanoDepartment of Veterinary Medicine and Animal Productions, University of Naples Federico II, 80126 Naples, Italy.ORCID 0000-0002-1577-4223
Karen PowerDepartment of Biology, University of Naples Federico II, 80126 Naples, Italy.ORCID 0000-0002-2940-7520

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Feline mammary tumors are the third most common neoplasms in female cats and they are characterized by high aggressiveness and high metastatic rates. Given the pivotal role of iron in human breast cancer development, in this study, we preliminarily explore the immunohistochemical expression of proteins involved in iron uptake, storage and efflux [Transferrin Receptor 1 (TfR1), Transferrin Receptor 2 (TfR2), ferritin (FTH1), and ferroportin (SLC40A1)] in non-metastatic and metastatic feline mammary carcinomas and their tributary lymph node and the possible correlation with hypoxia-inducible factor-1 (HIF-1). Our results showed an increased expression of TfR1 and TfR2 in relation to tumor progression. FTH1 immunolabeling was mainly observed in cancer cells delimiting necrotic areas and in lymph node metastasis, indicating greater iron storage possibly associated with hypoxic environments, as suggested by increased expression of HIF-1α. Also, an increase in SLC40A1 labeling in tumoral cells suggested greater iron efflux. Although preliminary, our results underline interesting differences between feline normal and tumoral mammary tissues, which could pave the way to further in vitro studies to better understand the role of iron in the progression of feline mammary tumors.

Indexed as

hypoxiaimmunohistochemistryiron metabolismlymph node metastasisWestern blotting

Identifiers

PMID42655830
PMCPMC13517384

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