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HOX Loci Focused CRISPR/sgRNA Library Screening Identifying Critical CTCF Boundaries

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Published on: March 31, 2019

Epigenetic regulations in hematopoietic Hox code.

H He¹, X Hua, J Yan

¹Institute for Marine Biosystem and Neurosciences, Department of Hydrobiology, College of Fisheries and Life Sciences, Shanghai Ocean University, Lingang New City, Shanghai, PR China.

|October 26, 2010

Summary

This summary is machine-generated.

Hox genes establish positional identity in development. This study proposes a hematopoietic Hox code model to understand their role in blood cell development and leukemia, offering insights into epigenetic therapy.

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Hemogenic Reprogramming of Human Fibroblasts by Enforced Expression of Transcription Factors

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Published on: November 4, 2019

Area of Science:

Developmental Biology
Hematopoiesis
Cancer Biology

Background:

Hox genes are crucial for embryonic development, defining positional identity through a 'Hox code'.
Their role in hematopoietic stem cells (HSCs) and their derivatives, including during migration and differentiation, is not well understood.
Key questions involve the existence of an axis in the hematopoietic system, epigenetic regulation of Hox gene expression in blood cells, and their involvement in leukemia.

Purpose of the Study:

To propose a combinatorial axial model for the hematopoietic Hox code.
To predict the positional identity of hematopoietic cells based on this model.
To offer new insights into epigenetic mechanisms and potential therapies for leukemia.

Main Methods:

The study proposes a theoretical model based on existing knowledge of Hox gene regulation and hematopoietic development.
The model integrates concepts of axial patterning with the unique characteristics of hematopoiesis.
No new experimental data generation is described; it's a conceptual framework.

Main Results:

The proposed model offers a framework to understand how Hox genes might establish positional identity within the hematopoietic system.
It predicts how epigenetic mechanisms could restrict Hox gene expression to specific blood cell lineages.
The model provides a basis for investigating the role of Hox genes in leukemic transformation.

Conclusions:

A combinatorial axial model of the hematopoietic Hox code can explain positional identity in blood cells.
This model may elucidate the epigenetic regulation of Hox genes in hematopoiesis and leukemia.
The framework holds potential for advancing epigenetic therapy strategies in leukemia treatment.