Sonic hedgehog signalling proteins are frequently expressed in retinoblastoma and are associated with aggressive clinicopathological features

Ji Young Choe, Ji Yun Yun, Yoon Kyung Jeon, SeHoon Kim, Ho Kyung Choung, Sohee Oh, Mira Park, Ji Eun Kim

Research output: Contribution to journalArticle

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Abstract

Aims: This study aimed to examine the expression of Sonic hedgehog (SHH) signalling proteins in retinoblastoma and to evaluate its clinical significance.

Methods: Seventy-nine enucleated retinoblastoma tumours were investigated immunohistochemically using antibodies against SHH pathway proteins, such as SHH, glioma-associated oncogene homologue (GLI) 1, GLI2, GLI3 and ABC binding cassette G2 (ABCG2). Western blotting of SHH signalling proteins was performed in two retinoblastoma cell lines.

Results: SHH was expressed in most retinoblastoma cases (78 of 79, 98.7%), with 21 cases (26.6%) showing strong expression. GLI1 and GLI2 were also frequently expressed: 67 of 78 cases (85.9%) and 71 of 77 cases (92.2%), respectively. GLI3, a transcriptional repressor, was expressed at low levels in 23 of the 78 cases (29.5%). High ABCG2 expression was found in 23 of the 78 cases (29.5%). High expression levels of these proteins in retinoblastoma cell lines were confirmed by western blotting. The expression of SHH was associated with advanced stages, local invasion and metastasis (all p<0.05).

Conclusions: SHH signalling molecules were frequently expressed in retinoblastoma tumour cells, and high SHH expression was closely related to an advanced disease status. Our results suggest that the SHH signalling pathway may play a role in the progression of retinoblastoma.

Original languageEnglish
Pages (from-to)6-11
Number of pages6
JournalJournal of Clinical Pathology
Volume68
Issue number1
DOIs
Publication statusPublished - 2015 Jan 1

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Hedgehog Proteins
Retinoblastoma
Western Blotting
Cell Line
Retinoblastoma Protein
Oncogenes
Glioma
Neoplasms
Neoplasm Metastasis
Antibodies

All Science Journal Classification (ASJC) codes

  • Pathology and Forensic Medicine

Cite this

Choe, Ji Young ; Yun, Ji Yun ; Jeon, Yoon Kyung ; Kim, SeHoon ; Choung, Ho Kyung ; Oh, Sohee ; Park, Mira ; Kim, Ji Eun. / Sonic hedgehog signalling proteins are frequently expressed in retinoblastoma and are associated with aggressive clinicopathological features. In: Journal of Clinical Pathology. 2015 ; Vol. 68, No. 1. pp. 6-11.
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abstract = "Aims: This study aimed to examine the expression of Sonic hedgehog (SHH) signalling proteins in retinoblastoma and to evaluate its clinical significance.Methods: Seventy-nine enucleated retinoblastoma tumours were investigated immunohistochemically using antibodies against SHH pathway proteins, such as SHH, glioma-associated oncogene homologue (GLI) 1, GLI2, GLI3 and ABC binding cassette G2 (ABCG2). Western blotting of SHH signalling proteins was performed in two retinoblastoma cell lines.Results: SHH was expressed in most retinoblastoma cases (78 of 79, 98.7{\%}), with 21 cases (26.6{\%}) showing strong expression. GLI1 and GLI2 were also frequently expressed: 67 of 78 cases (85.9{\%}) and 71 of 77 cases (92.2{\%}), respectively. GLI3, a transcriptional repressor, was expressed at low levels in 23 of the 78 cases (29.5{\%}). High ABCG2 expression was found in 23 of the 78 cases (29.5{\%}). High expression levels of these proteins in retinoblastoma cell lines were confirmed by western blotting. The expression of SHH was associated with advanced stages, local invasion and metastasis (all p<0.05).Conclusions: SHH signalling molecules were frequently expressed in retinoblastoma tumour cells, and high SHH expression was closely related to an advanced disease status. Our results suggest that the SHH signalling pathway may play a role in the progression of retinoblastoma.",
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Sonic hedgehog signalling proteins are frequently expressed in retinoblastoma and are associated with aggressive clinicopathological features. / Choe, Ji Young; Yun, Ji Yun; Jeon, Yoon Kyung; Kim, SeHoon; Choung, Ho Kyung; Oh, Sohee; Park, Mira; Kim, Ji Eun.

In: Journal of Clinical Pathology, Vol. 68, No. 1, 01.01.2015, p. 6-11.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Sonic hedgehog signalling proteins are frequently expressed in retinoblastoma and are associated with aggressive clinicopathological features

AU - Choe, Ji Young

AU - Yun, Ji Yun

AU - Jeon, Yoon Kyung

AU - Kim, SeHoon

AU - Choung, Ho Kyung

AU - Oh, Sohee

AU - Park, Mira

AU - Kim, Ji Eun

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N2 - Aims: This study aimed to examine the expression of Sonic hedgehog (SHH) signalling proteins in retinoblastoma and to evaluate its clinical significance.Methods: Seventy-nine enucleated retinoblastoma tumours were investigated immunohistochemically using antibodies against SHH pathway proteins, such as SHH, glioma-associated oncogene homologue (GLI) 1, GLI2, GLI3 and ABC binding cassette G2 (ABCG2). Western blotting of SHH signalling proteins was performed in two retinoblastoma cell lines.Results: SHH was expressed in most retinoblastoma cases (78 of 79, 98.7%), with 21 cases (26.6%) showing strong expression. GLI1 and GLI2 were also frequently expressed: 67 of 78 cases (85.9%) and 71 of 77 cases (92.2%), respectively. GLI3, a transcriptional repressor, was expressed at low levels in 23 of the 78 cases (29.5%). High ABCG2 expression was found in 23 of the 78 cases (29.5%). High expression levels of these proteins in retinoblastoma cell lines were confirmed by western blotting. The expression of SHH was associated with advanced stages, local invasion and metastasis (all p<0.05).Conclusions: SHH signalling molecules were frequently expressed in retinoblastoma tumour cells, and high SHH expression was closely related to an advanced disease status. Our results suggest that the SHH signalling pathway may play a role in the progression of retinoblastoma.

AB - Aims: This study aimed to examine the expression of Sonic hedgehog (SHH) signalling proteins in retinoblastoma and to evaluate its clinical significance.Methods: Seventy-nine enucleated retinoblastoma tumours were investigated immunohistochemically using antibodies against SHH pathway proteins, such as SHH, glioma-associated oncogene homologue (GLI) 1, GLI2, GLI3 and ABC binding cassette G2 (ABCG2). Western blotting of SHH signalling proteins was performed in two retinoblastoma cell lines.Results: SHH was expressed in most retinoblastoma cases (78 of 79, 98.7%), with 21 cases (26.6%) showing strong expression. GLI1 and GLI2 were also frequently expressed: 67 of 78 cases (85.9%) and 71 of 77 cases (92.2%), respectively. GLI3, a transcriptional repressor, was expressed at low levels in 23 of the 78 cases (29.5%). High ABCG2 expression was found in 23 of the 78 cases (29.5%). High expression levels of these proteins in retinoblastoma cell lines were confirmed by western blotting. The expression of SHH was associated with advanced stages, local invasion and metastasis (all p<0.05).Conclusions: SHH signalling molecules were frequently expressed in retinoblastoma tumour cells, and high SHH expression was closely related to an advanced disease status. Our results suggest that the SHH signalling pathway may play a role in the progression of retinoblastoma.

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