ArticleInternational journal of experimental pathology2013
Angiogenin expression in human kidneys and Wilms' tumours: relationship with hypoxia and angiogenic factors.
Article in International journal of experimental pathology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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3 citing papers in PubMed, 10 citations in OpenAlex.
- Expression of hsa-miRNA-15b, -99b, -181a and Their Relationship to Angiogenesis in Renal Cell Carcinoma.Biomedicines · 2024Article
- tRNA fragmentation and protein translation dynamics in the course of kidney injury.RNA biology · 2018Review
- FGF2-mediated reciprocal tumor cell-endothelial cell interplay contributes to the growth of chemoresistant cells: a potential mechanism for superficial bladder cancer recurrence.Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2016Article
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4 authors at 1 institution in 1 country.
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Abstract
Angiogenin (ANG) is a potent angiogenic factor that is up-regulated by hypoxia. ANG expression is well documented in normal tissues and in common tumours, but its expression has not been reported in the normal human kidney or in Wilms' tumours (WT). We examined ANG expression in WTs, human fetal kidney (FK) and childhood kidney (NK) samples and studied its relationship with microvascular density (MVD) and with three other hypoxia-induced angiogenic factors: lactate dehydrogenase A (LDHA), vascular endothelial growth factor (VEGFA) and BHLHE40 (basic helix-loop-helix transcription factor E40). Total ANG protein levels were significantly lower in WTs when compared with those in 15 matched-paired NKs. ANG immunoreactivity was observed in the glomeruli, proximal tubules and vessels in the FKs and NKs, indicating that ANG plays a physiological role in the human kidney. ANG cellular localization and distribution in 27 WTs reflected the pattern observed in the FKs. ANG colocalized with LDHA in the perinecrotic areas of untreated WTs suggesting up-regulation by hypoxia. There was a significant correlation between CD31-MVD and ANG-MVD. ANG, CD31, VEGFA and BHLHE40 mRNA levels were significantly lower in 15 WTs compared with matched-paired NKs. Univariable and multivariable statistical analyses showed significant correlations between ANG and CD31, ANG and BHLHE40 mRNAs and a weaker relationship between ANG and VEGFA mRNAs. ANG expression in WTs recapitulates that seen during nephrogenesis, and correlation with CD31-MVDs and mRNAs is consistent with a contribution to angiogenesis in WTs. Our study contributes to the understanding of angiogenesis during development and in WTs.
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