Abstract 1789
Background
FMS-Like Tyrosine Kinase III (FLT3 / CD135), also known as stem cell tyrosine kinase 1 (STK1) or fetal liver kinase 2 (FLK2), belong to the group of class3 receptor of tyrosine kinase activity. The expression of FLT3 receptor is confined to early hematopoietic progenitor’s cells in normal BM. Even though new FLT3 mutations in Acute Myeloid Leukemia (AML) are increasing, the role of FLT3 receptor surface expression in AML and precursor B acute lymphoblastic leukemia (pre-B-ALL) had infrequently been addressed.
Methods
To further evaluate the significance of FLT3 (CD135) expression in AML and pre B-ALL we investigated FLT3 level of expression in newly diagnosed 76 AML patients, 80 pre B-ALL patients and 72 healthy control donors by flowcytometry. The cut-off value for FLT3 positivity was 20%. FLT3 expression was correlated with standards prognostic parameters.
Results
We demonstrated FLT3 protein expression >20% in 68.4% of AML patients, its level was different in FAB subtypes with increasing levels in the following order: M1
Conclusions
High FLT3 expression can predict outcome and is associated with poor prognostic factors in AML while it is associated with good prognostic factors in ALL.
Clinical trial identification
Legal entity responsible for the study
Faculty of Medicine, Menoufia University, Shebin Elkom, Egypt.
Funding
Has not received any funding.
Editorial Acknowledgement
Disclosure
All authors have declared no conflicts of interest.
Resources from the same session
4679 - Correlative analyses of serum biomarkers and efficacy outcomes in the randomized phase 2 trial of lenvatinib (LEN), everolimus (EVE), or LEN+EVE in patients with metastatic renal cell carcinoma
Presenter: Chung-Han Lee
Session: Poster display session: Biomarkers, Gynaecological cancers, Haematological malignancies, Immunotherapy of cancer, New diagnostic tools, NSCLC - early stage, locally advanced & metastatic, SCLC, Thoracic malignancies, Translational research
Resources:
Abstract
5379 - End-to-end learning to predict survival in patients with gastric cancer using convolutional neural networks
Presenter: Armin Meier
Session: Poster display session: Biomarkers, Gynaecological cancers, Haematological malignancies, Immunotherapy of cancer, New diagnostic tools, NSCLC - early stage, locally advanced & metastatic, SCLC, Thoracic malignancies, Translational research
Resources:
Abstract
5394 - Detection of Targetable Kinase Fusions in 7260 patients in an integrated Cancer System
Presenter: Ankur Parikh
Session: Poster display session: Biomarkers, Gynaecological cancers, Haematological malignancies, Immunotherapy of cancer, New diagnostic tools, NSCLC - early stage, locally advanced & metastatic, SCLC, Thoracic malignancies, Translational research
Resources:
Abstract
5884 - Clinical and analytical validation of an FDA approved comprehensive genomic profiling (CGP) assay incorporating multiple companion diagnostics for targeted and immunotherapies
Presenter: Yali Li
Session: Poster display session: Biomarkers, Gynaecological cancers, Haematological malignancies, Immunotherapy of cancer, New diagnostic tools, NSCLC - early stage, locally advanced & metastatic, SCLC, Thoracic malignancies, Translational research
Resources:
Abstract
5912 - SET overexpression promotes colorectal cancer progression and determines poor outcome in patients with localized disease.
Presenter: Blanca Torrejón
Session: Poster display session: Biomarkers, Gynaecological cancers, Haematological malignancies, Immunotherapy of cancer, New diagnostic tools, NSCLC - early stage, locally advanced & metastatic, SCLC, Thoracic malignancies, Translational research
Resources:
Abstract
1168 - The functional MDM4 genetic variant in advanced lung adenocarcinoma patients treated with EGFR-TKIs
Presenter: Nasha Zhang
Session: Poster display session: Biomarkers, Gynaecological cancers, Haematological malignancies, Immunotherapy of cancer, New diagnostic tools, NSCLC - early stage, locally advanced & metastatic, SCLC, Thoracic malignancies, Translational research
Resources:
Abstract
3071 - PD-L1 expression on pre-treatment circulating tumour cells, but not serum VEGF, is predictive of response to pembrolizumab in melanoma
Presenter: Muhammad Khattak
Session: Poster display session: Biomarkers, Gynaecological cancers, Haematological malignancies, Immunotherapy of cancer, New diagnostic tools, NSCLC - early stage, locally advanced & metastatic, SCLC, Thoracic malignancies, Translational research
Resources:
Abstract
4062 - Olaparib plus paclitaxel sensitivity in biomarker subgroups of gastric cancer
Presenter: Yu-Zhen Liu
Session: Poster display session: Biomarkers, Gynaecological cancers, Haematological malignancies, Immunotherapy of cancer, New diagnostic tools, NSCLC - early stage, locally advanced & metastatic, SCLC, Thoracic malignancies, Translational research
Resources:
Abstract
4801 - A diagnostic model for hepatitis B virus-related hepatocellular carcinoma in China: a large-scale, multi-center study
Presenter: Tian Yang
Session: Poster display session: Biomarkers, Gynaecological cancers, Haematological malignancies, Immunotherapy of cancer, New diagnostic tools, NSCLC - early stage, locally advanced & metastatic, SCLC, Thoracic malignancies, Translational research
Resources:
Abstract
4874 - Dissecting Gastric Cancer biology and how and when to use immunotherapy
Presenter: Meghna Das Thakur
Session: Poster display session: Biomarkers, Gynaecological cancers, Haematological malignancies, Immunotherapy of cancer, New diagnostic tools, NSCLC - early stage, locally advanced & metastatic, SCLC, Thoracic malignancies, Translational research
Resources:
Abstract