Lipoblast

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Lipoblast features, annotated
Lipoblasts and lipocytes
Dedifferentiated liposarcoma - cropped - very high mag
Histopathology of liposarcoma, annotated

Lipoblast is a type of precursor fat cell or adipocyte, which is found in the process of lipogenesis, the biological synthesis of fat from simpler molecules. Lipoblasts are critical in the development and storage of body fat, and they play a significant role in the body's energy regulation. These cells can differentiate into mature adipocytes, which are responsible for storing energy in the form of lipids.

Development and Function[edit | edit source]

Lipoblasts originate from mesenchymal stem cells in a process influenced by various growth factors and hormones, including insulin and cortisol. During lipogenesis, lipoblasts accumulate lipids, gradually transforming into mature adipocytes. This process is essential for energy balance, thermal insulation, and organ protection in the human body.

Pathology[edit | edit source]

In some cases, lipoblasts can be involved in pathological conditions. The presence of lipoblasts is a hallmark of liposarcoma, a rare type of cancer that arises in fat cells in deep soft tissue, such as that inside the thigh or in the retroperitoneum. Liposarcoma is characterized by the proliferation of lipoblasts that have not fully matured into adipocytes. Identifying lipoblasts under a microscope is crucial for the diagnosis of liposarcoma.

Clinical Significance[edit | edit source]

Understanding the biology of lipoblasts and their role in diseases like liposarcoma is important for developing targeted therapies. Research into the mechanisms that regulate the differentiation of lipoblasts into mature adipocytes may offer new approaches to treating obesity and related metabolic disorders.


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Contributors: Prab R. Tumpati, MD