Dynamic interplay between corticosteroid treatment and the role of SRC-1 gene dysregulation in the progression of WHO-Grade 4 Astrocytoma
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Published:2023-07
Issue:3
Volume:163
Page:693-705
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ISSN:0167-594X
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Container-title:Journal of Neuro-Oncology
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language:en
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Short-container-title:J Neurooncol
Author:
Kurdi MaherORCID, Fadul Motaz M, Addas Bassam M. J., Faizo Eyad, Alkhayyat Shadi, Bamaga Ahmed K., Alsinani Taghreed, Katib Yousef, Okal Fahad, Maghrabi Yazid, Sabbagh Abdulrahman J., Moshref Rana, Albalawi Sultan, Alkhotani Alaa, Halawa Taher F., Mulla Nasser, Hakamy Sahar, Baeesa Saleh
Abstract
Abstract
Background
Corticosteroid is commonly used before surgery to control cerebral oedema in brain tumours and is frequently continued throughout treatment. Its long-term effect of on the recurrence of WHO-Grade 4 astrocytoma remains controversial. The interaction between corticosteroid, SRC-1 gene and cytotoxic T-cells has never been investigated.
Methods
A retrospective cohort of 36 patients with WHO-Grade 4 astrocytoma were examined for CD8 + T-cell and SRC-1 gene expressions through IHC and qRT-PCR. The impact of corticosteroid on CD8+T-cells infiltration, SRC-1 expression, and tumour recurrence was analyzed.
Results
The mean patients age was 47-years, with a male to female ratio 1.2. About 78% [n = 28] of the cases showed reduced or no CD8+T-cell expression while 22% [n = 8] of cases have showed medium to high CD8+T-cell expression. SRC-1 gene was upregulated in 5 cases [14%] and 31 cases [86%] showed SRC-1 downregulation. The average of total days and doses of administered corticosteroid from the preoperative period to the postoperative period was at range of 14–106 days and 41–5028 mg, respectively. There was no significant statistical difference in RFI among tumours expressing high or low CD8+T-cells when corticosteroid was administered in recommended or exceeded doses [p-value = 0.640]. There was a significant statistical difference in RFI between CD8+T-Cell expression and SRC-1 gene dysregulation [p-value = 002]. Tumours with high CD8+T T-cell expression and SRC-1 gene downregulation had late recurrence.
Conclusions
Corticosteroid treatment can directly affect the SRC-1 gene regulation but does not directly influence cytotoxic T-cells infiltration or tumor progression. However, SRC-1 gene downregulation can facilitate late tumor recurrence.
Funder
King Abdulaziz University
Publisher
Springer Science and Business Media LLC
Subject
Cancer Research,Neurology (clinical),Neurology,Oncology
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