RESEARCH: CANCER
FOLDING PROJECT #15214 PROFILE

The project relates to how a protein called PTCH1 moves cholesterol around in cells to control cancer growth. When PTCH1 doesn't work right, it can lead to cancers like medulloblastoma and basal cell carcinoma. Learning how PTCH1 moves cholesterol could help scientists 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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PTCH1

Patched Homolog 1, a transmembrane protein

PTCH1 is a protein that plays a crucial role in the hedgehog signaling pathway. It acts as a receptor for SHH and inhibits SMO (Smoothened), another protein in the pathway, when SHH is absent. This inhibition prevents uncontrolled cell growth and development.

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SMO

Smoothened

SMO is a transmembrane protein that acts as a key component in the hedgehog signaling pathway. When activated by SHH (Sonic Hedgehog), SMO promotes cell proliferation and differentiation.

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SHH

Sonic Hedgehog

SHH is a signaling protein that plays a vital role in embryonic development and tissue regeneration. It binds to PTCH1 and activates the hedgehog pathway, leading to cell growth and differentiation.

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Cholesterol Transport

The movement of cholesterol molecules within and between cells.

Cholesterol transport is essential for maintaining cell membrane integrity and regulating various cellular processes. PTCH1 plays a role in transporting cholesterol to specific locations within the cell.

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Cancer

A group of diseases characterized by abnormal cell growth and spread.

Cancer is a broad term encompassing various diseases that involve uncontrolled cell proliferation and invasion into surrounding tissues. Dysregulation of the hedgehog pathway has been linked to several types of cancer.

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Medulloblastoma

An aggressive brain tumor that originates in the cerebellum.

Medulloblastoma is a type of childhood brain cancer that arises from the cerebellum. It is characterized by rapid growth and spread.

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Basal Cell Carcinoma

A common type of skin cancer that originates in the basal cells.

Basal cell carcinoma is the most prevalent form of skin cancer. It typically arises from sun-exposed areas and presents as a pearly or waxy bump.