An Investigation into KLK5, KLK6 and KLK7 Expressions in Intracranial Tumors

Year 2020, Volume: 7 Issue: 3, 272 - 277, 30.09.2020

Gamze Turna , Nedret Kılıc Gokhan Kurt Fikret Dogulu Necdet Cevıker

https://doi.org/10.34087/cbusbed.673053

Cited By: 1

Abstract

Aim: Kallikrein-related peptidases (KLKs) are a subgroup of serine proteases which consists of 15 genes located on the 19th (19q13.3-4) chromosome. Previous studies have shown that kallikrein-related peptidases (KLKs) associated with a variety of cancer types. However, few studies have investigated the role of KLKs in diagnosis and prognosis in intracranial tumors. Therefore, this study aimed to determine expression level changes of KLK5, KLK6 and KLK7 in intracranial tumors.
Materials and methods: Meningioma grade I (n=15) and glioblastoma multiforme (n=15) tumor samples were examined for KLK5, KLK6 and KLK7 mRNA gene expression using reverse transcriptase polymerase chain reaction (RT-PCR). Their protein expression were determined using Western blotting.
Results: KLK5 and KLK7 mRNAs and proteins are expressed more frequently in meningioma group whereas KLK6 mRNA and proteins are expressed more frequently in glioblastoma group.
Conclusion: To conclude, when meningioma and glioblastoma groups were compared, it was found that there were differences in mRNA and protein expression levels of KLK5, KLK6 and KLK7. These genes may have a potential as a new biomarker for diagnosis in intracranial tumors.

Keywords

Kallikrein-related peptidases 5, kallikrein-related peptidases 6, kallikrein-related peptidases 7, meningioma, glioblastoma

Supporting Institution

Gazi University Scientific Research Projects

Project Number

01/2010-106

Thanks

We thank to Assoc. Prof. Dr. Sevin Guney and Yasemin Isik Koc, M.Sc. for their valuable support. This research was supported by Gazi University Scientific Research Projects No. 01/2010-106.

İntrakranial Tümörlerde KLK5, KLK6 ve KLK7 Ekspresyonlarının Araştırılması

Abstract

Amaç: 19. kromozom (19q13.3-4) üzerinde bulunan 15 genden oluşan kallikrein ilişkili peptidazlar (KLK’lar), serin proteazların bir alt grubudur. Daha önce yapılan bazı çalışmalar KLK'ların çeşitli kanser türleriyle ilişkili olduğunu göstermiştir. Bununla birlikte, intrakranial tümörlerde KLK'ların tanı ve prognozdaki rolünü araştıran az sayıda çalışma bulunmaktadır. Bu nedenle, bu çalışmada intrakranial tümörlerde KLK5, KLK6 ve KLK7'nin ekspresyon düzeylerindeki değişimlerin belirlenmesi amaçlamıştır.
Materyal ve metod: Menenjiom grade I (n = 15) ve glioblastoma multiforme (n = 15) tümör örneklerinde, KLK5, KLK6 ve KLK7 mRNA ekspresyon düzeyleri ters transkriptaz polimeraz zincir reaksiyonu (RT-PCR) kullanılarak tespit edildi. Protein ekspresyonları ise western blotting yöntemi kullanılarak belirlendi.
Bulgular: KLK5 ve KLK7’nin mRNA ve proteinleri menenjiom grubunda daha sıklıkla ifade edilirken, KLK6’nın mRNA ve proteini glioblastoma grubunda daha sıklıkla ifade edilmektedir.
Sonuç: Menenjiom ve glioblastoma grupları karşılaştırıldığında KLK5, KLK6 ve KLK7 mRNA ve protein ekspresyon düzeylerinde farklılıklar olduğu tespit edilmiştir. Bu genler intrakranial tümörlerin tanısı için yeni bir biyobelirteç olma potansiyeline sahip olabilir.

Keywords

Kallikrein ilişkili peptidaz 5, kallikrein ilişkili peptidaz 6, kallikrein ilişkili peptidaz 7, menenjiom, glioblastoma

Project Number

01/2010-106

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