RESEARCH: CANCER
FOLDING PROJECT #15238 PROFILE

The project relates to how PTCH1 moves cholesterol around in cells to control a pathway that's important for growth. When this pathway is messed up, it can lead to cancers like medulloblastoma and basal cell carcinoma. Figuring out how PTCH1 works could help us develop new cancer treatments.

Note: This TLDR is a simplication and may not be 100% accurate.

This project aims to elucidate the cholesterol transport mechanism in PTCH1, a transmembrane protein responsible for inhibiting SMO in the absence of SHH in the hedgehog signaling pathway by reducing access to ciliary membrane cholesterol.

Dysregulation of this pathway (such as the inability of PTCH1 to transport cholesterol and thereby inhibit SMO) has been linked to various cancers, including medulloblastoma and basal cell carcinoma.

Thus, understanding the mechanisms behind PTCH1 cholesterol transport will allow for therapeutic treatments to target these cancers.

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cholesterol

A waxy, fat-like substance found in the body and some foods.

Cholesterol is a vital component of cell membranes, helping maintain their structure and fluidity. It also plays a role in producing hormones and vitamin D. While essential, high levels of cholesterol in the blood can increase the risk of heart disease and stroke.

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PTCH1

Patched 1

PTCH1 is a gene that provides instructions for making a protein involved in cell signaling. This protein acts as a receptor, binding to certain molecules like Hedgehog (SHH) and regulating cellular growth and development.

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SMO

Smoothened

SMO is a protein that plays a crucial role in the Hedgehog signaling pathway. When activated by SHH, SMO triggers a cascade of events leading to gene expression changes that control cell growth and differentiation.

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SHH

Sonic Hedgehog

SHH is a signaling molecule essential for embryonic development. It directs the growth and organization of tissues and organs, influencing processes like limb formation and brain patterning.

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hedgehog signaling pathway

A complex series of molecular interactions that regulates cell growth, differentiation, and survival.

The Hedgehog signaling pathway is a vital communication system in cells, essential for various developmental processes. When activated, it triggers a cascade of events leading to changes in gene expression, ultimately influencing cell behavior.

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medulloblastoma

A type of brain tumor that arises from the cerebellum.

Medulloblastoma is a malignant brain tumor typically found in children. It originates in the cerebellum, a part of the brain responsible for coordinating movement and balance.

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basal cell carcinoma

The most common type of skin cancer.

Basal cell carcinoma is a slow-growing skin cancer that originates in the basal cells of the epidermis. It typically appears as a pearly or waxy bump and is often treatable with surgery.