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Published on: February 21, 2018
Protein expression and subcellular localization of familial acute myelogenous leukemia-related factor
Yuanmao Huang1, Lulu Chen, Meiling Ye
1Union Clinical Medical College, Fujian Medical University, Fuzhou 350001, P.R. China.
Abstract:
The present study was designed to evaluate the expression and subcellular distribution of the familial acute myelogenous leukemia-related factor (FAMLF). A 14-amino acid epitope of the predicted open reading frame of the FAMLF gene was identified using bioinformatics. This polypeptide was synthesized, conjugated to keyhole limpet hemocyanin and was subsequently used to produce antibodies. The antibody titer and specificity were characterized using ELISA and western blot assays, respectively. The antibody detected FAMLF protein expression in several human leukemia cell lines, bone marrow cells derived from one acute myeloid leukemia patient and one chronic myeloid leukemia patient, but not in bone marrow cells of healthy subjects. The FAMLF/GFP fusion protein was expressed in both the nucleus and the cytoplasm of transfected NIH3T3 cells. Our results demonstrate that the FAMLF gene is expressed in an AML patient but not in healthy controls, suggesting its association with AML.
Insights
Familial acute myelogenous leukemia-related factor (FAMLF) is expressed in leukemia patients but not healthy individuals. This finding suggests FAMLF
Area of Science:
- Hematology
- Molecular Biology
- Oncology
Background:
- Acute myeloid leukemia (AML) is a complex hematological malignancy.
- Identifying novel molecular markers is crucial for AML diagnosis and understanding.
- The familial acute myelogenous leukemia-related factor (FAMLF) role in AML is not well understood.
Purpose of the Study:
- To investigate the expression and subcellular localization of FAMLF.
- To determine if FAMLF is associated with acute myeloid leukemia.
Main Methods:
- Bioinformatic analysis to identify a FAMLF epitope.
- Polypeptide synthesis and antibody production.
- ELISA and Western blot for antibody characterization.
- FAMLF expression analysis in leukemia cell lines and patient bone marrow samples.
- FAMLF/GFP fusion protein expression in transfected cells.
Main Results:
- A specific antibody against FAMLF was successfully generated.
- FAMLF protein was detected in human leukemia cell lines and patient bone marrow.
- FAMLF was absent in bone marrow cells from healthy subjects.
- FAMLF/GFP fusion protein localized to both nucleus and cytoplasm in NIH3T3 cells.
Conclusions:
- FAMLF gene expression is elevated in AML patients compared to healthy controls.
- FAMLF's presence in leukemia cells suggests a potential role in AML pathogenesis.
- Further research into FAMLF's function in AML is warranted.
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