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17 Results Found

  • Article
  • Open Access
5 Citations
3,421 Views
9 Pages

29 August 2021

Parkinson’s disease (PD) is characterized by a loss of dopaminergic cells in the substantia nigra, and its histopathological features include the presence of fibrillar aggregates of α-synuclein (α-syn), which are called Lewy bodies and Lewy neurites....

  • Article
  • Open Access
19 Citations
6,471 Views
22 Pages

Nuclear Translocation of SRPKs Is Associated with 5-FU and Cisplatin Sensitivity in HeLa and T24 Cells

  • Ioanna Sigala,
  • Maria Koutroumani,
  • Anastasia Koukiali,
  • Thomas Giannakouros and
  • Eleni Nikolakaki

30 March 2021

Serine/arginine protein kinases (SRPKs) phosphorylate Arg/Ser dipeptide-containing proteins that play crucial roles in a broad spectrum of basic cellular processes. The existence of a large internal spacer sequence that separates the bipartite kinase...

  • Feature Paper
  • Article
  • Open Access
4 Citations
4,884 Views
10 Pages

An ATM/CHK2 Signaling Pathway Induces Nuclear Translocation of SRPK2 in Cisplatin-Treated HeLa Cells

  • Ioanna Sigala,
  • Anastasia Koukiali,
  • Androulla Miliotou,
  • Phaedra Lougiaki,
  • Thomas Giannakouros and
  • Eleni Nikolakaki

9 December 2021

Chemotherapeutic agents are frequently used to treat various cancers, but the mechanisms mediating the cellular response to the drugs are still not fully understood. We previously reported that the nuclear translocation of serine/arginine protein kin...

  • Article
  • Open Access
6 Citations
2,604 Views
20 Pages

Currently, the treatment of gliomas still relies primarily on surgery and radiochemotherapy. Although there are various drugs available, including temozolomide, the overall therapeutic effect is unsatisfactory, and the prognosis remains poor. Therefo...

  • Article
  • Open Access
8 Citations
5,328 Views
19 Pages

Serine–Arginine Protein Kinase SRPK2 Modulates the Assembly of the Active Zone Scaffolding Protein CAST1/ERC2

  • Duxan Arancibia,
  • Matias Lira,
  • Yocelin Cruz,
  • Daniela P. Barrera,
  • Carolina Montenegro-Venegas,
  • Juan A. Godoy,
  • Craig C. Garner,
  • Nibaldo C. Inestrosa,
  • Eckart D. Gundelfinger and
  • Pedro Zamorano
  • + 1 author

29 October 2019

Neurons release neurotransmitters at a specialized region of the presynaptic membrane, the active zone (AZ), where a complex meshwork of proteins organizes the release apparatus. The formation of this proteinaceous cytomatrix at the AZ (CAZ) depends...

  • Review
  • Open Access
37 Citations
7,246 Views
19 Pages

Serine-Arginine Protein Kinase 1 (SRPK1) as a Prognostic Factor and Potential Therapeutic Target in Cancer: Current Evidence and Future Perspectives

  • Ilias P. Nikas,
  • Sophie C. Themistocleous,
  • Stavroula A. Paschou,
  • Konstantinos I. Tsamis and
  • Han Suk Ryu

19 December 2019

Cancer, a heterogeneous disease composed of tumor cells and microenvironment, is driven by deregulated processes such as increased proliferation, invasion, metastasis, angiogenesis, and evasion of apoptosis. Alternative splicing, a mechanism led by s...

  • Article
  • Open Access
2 Citations
6,209 Views
17 Pages

SR Protein Kinase 1 Inhibition by TAF15

  • Anastasia Koukiali,
  • Makrina Daniilidou,
  • Ilias Mylonis,
  • Thomas Giannakouros and
  • Eleni Nikolakaki

28 December 2022

Although SRPKs were discovered nearly 30 years ago, our understanding of their mode of regulation is still limited. Regarded as constitutively active enzymes known to participate in diverse biological processes, their prominent mode of regulation mai...

  • Article
  • Open Access

Knockdown of Serine–Arginine Protein Kinase 3 Impairs Sperm Development in Spodoptera frugiperda

  • Yilin Song,
  • Yi Zhou,
  • Ruoke Wang,
  • Bing Zhang,
  • Zhongwei Li,
  • Xiangyu Liu and
  • Dandan Li

11 December 2025

Lepidopterans produce two distinct types of sperm: nucleated eupyrene sperm for fertilization and anucleate apyrene sperm for auxiliary functions. However, the mechanisms underlying sperm dimorphism in fall armyworm Spodoptera frugiperda remain poorl...

  • Article
  • Open Access
3 Citations
3,861 Views
25 Pages

Synthesis and Anti-Angiogenic Activity of Novel c(RGDyK) Peptide-Based JH-VII-139-1 Conjugates

  • George Leonidis,
  • Anastasia Koukiali,
  • Ioanna Sigala,
  • Katerina Tsimaratou,
  • Dimitris Beis,
  • Thomas Giannakouros,
  • Eleni Nikolakaki and
  • Vasiliki Sarli

Peptide–drug conjugates are delivery systems for selective delivery of cytotoxic agents to target cancer cells. In this work, the optimized synthesis of JH-VII-139-1 and its c(RGDyK) peptide conjugates is presented. The low nanomolar SRPK1 inhi...

  • Article
  • Open Access
2 Citations
2,759 Views
20 Pages

SRSF5 Regulates the Expression of BQ323636.1 to Modulate Tamoxifen Resistance in ER-Positive Breast Cancer

  • Ho Tsoi,
  • Nicholas Nok-Ching Fung,
  • Ellen P. S. Man,
  • Man-Hong Leung,
  • Chan-Ping You,
  • Wing-Lok Chan,
  • Sum-Yin Chan and
  • Ui-Soon Khoo

13 April 2023

About 70% of breast cancer patients are oestrogen receptor-positive (ER +ve). Adjuvant endocrine therapy using tamoxifen (TAM) is an effective approach for preventing local recurrence and metastasis. However, around half of the patients will eventual...

  • Article
  • Open Access
40 Citations
6,734 Views
18 Pages

Altered VEGF Splicing Isoform Balance in Tumor Endothelium Involves Activation of Splicing Factors Srpk1 and Srsf1 by the Wilms’ Tumor Suppressor Wt1

  • Kay-Dietrich Wagner,
  • Mounir El Maï,
  • Michael Ladomery,
  • Tareg Belali,
  • Nathalie Leccia,
  • Jean-François Michiels and
  • Nicole Wagner

11 January 2019

Angiogenesis is one hallmark of cancer. Vascular endothelial growth factor (VEGF) is a known inducer of angiogenesis. Many patients benefit from antiangiogenic therapies, which however have limitations. Although VEGF is overexpressed in most tumors,...

  • Review
  • Open Access
50 Citations
19,292 Views
17 Pages

Lamin B Receptor: Interplay between Structure, Function and Localization

  • Eleni Nikolakaki,
  • Ilias Mylonis and
  • Thomas Giannakouros

31 August 2017

Lamin B receptor (LBR) is an integral protein of the inner nuclear membrane, containing a hydrophilic N-terminal end protruding into the nucleoplasm, eight hydrophobic segments that span the membrane and a short, nucleoplasmic C-terminal tail. Two se...

  • Article
  • Open Access
2,175 Views
19 Pages

Proteome and Phosphoproteome Profiling Reveal the Toxic Mechanism of Clostridium perfringens Epsilon Toxin in MDCK Cells

  • Nan Yue,
  • Jing Huang,
  • Mingxin Dong,
  • Jiaxin Li,
  • Shan Gao,
  • Jing Wang,
  • Yingshuang Wang,
  • Dongxue Li,
  • Xi Luo and
  • Tingting Liu
  • + 7 authors

14 September 2024

Epsilon toxin (ETX), a potential agent of biological and toxic warfare, causes the death of many ruminants and threatens human health. It is crucial to understand the toxic mechanism of such a highly lethal and rapid course toxin. In this study, we d...

  • Article
  • Open Access
6 Citations
3,610 Views
15 Pages

SR Protein Kinases Regulate the Splicing of Cardiomyopathy-Relevant Genes via Phosphorylation of the RSRSP Stretch in RBM20

  • Mingming Sun,
  • Yutong Jin,
  • Yanghai Zhang,
  • Zachery R Gregorich,
  • Jun Ren,
  • Ying Ge and
  • Wei Guo

25 August 2022

(1) Background: RNA binding motif 20 (RBM20) regulates mRNA splicing specifically in muscle tissues. Missense mutations in the arginine/serine (RS) domain of RBM20 lead to abnormal gene splicing and have been linked to severe dilated cardiomyopathy (...

  • Article
  • Open Access
1 Citations
2,418 Views
15 Pages

Identification of Vital Genes for NSCLC Integrating Mutual Information and Synergy

  • Xiaobo Yang,
  • Zhilong Mi,
  • Qingcai He,
  • Binghui Guo and
  • Zhiming Zheng

17 March 2023

Lung cancer, amongst the fast growing malignant tumors, has become the leading cause of cancer death, which deserves attention. From a prevention and treatment perspective, advances in screening, diagnosis, and treatment have driven a reduction in no...

  • Article
  • Open Access
6 Citations
2,957 Views
31 Pages

Chronic Kidney Disease Transdifferentiates Veins into a Specialized Immune–Endocrine Organ with Increased MYCN-AP1 Signaling

  • Fatma Saaoud,
  • Laisel Martinez,
  • Yifan Lu,
  • Keman Xu,
  • Ying Shao,
  • Jia L Zhuo,
  • Avrum Gillespie,
  • Hong Wang,
  • Marwan Tabbara and
  • Alghidak Salama
  • + 2 authors

26 May 2023

Most patients with end-stage renal disease (ESRD) and advanced chronic kidney disease (CKD) choose hemodialysis as their treatment of choice. Thus, upper-extremity veins provide a functioning arteriovenous access to reduce dependence on central venou...

  • Article
  • Open Access
7 Citations
6,291 Views
26 Pages

Mining Featured Biomarkers Linked with Epithelial Ovarian CancerBased on Bioinformatics

  • Varun Chandra Alur,
  • Varshita Raju,
  • Basavaraj Vastrad and
  • Chanabasayya Vastrad

Epithelial ovarian cancer (EOC) is the18th most common cancer worldwide and the 8th most common in women. The aim of this study was to diagnose the potential importance of, as well as novel genes linked with, EOC and to provide valid biological infor...