RESEARCH: CANCER
FOLDING PROJECT #15215 PROFILE

The project relates to how PTCH1 moves cholesterol in cells. This protein helps control a pathway that's important for growth. When it doesn't work right, it can lead to cancers like medulloblastoma and basal cell carcinoma. Understanding 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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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 the hedgehog signaling molecule and inhibits another protein called SMO when hedgehog signals are absent. This inhibition prevents the activation of downstream pathways involved in cell growth and differentiation.

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SMO

Smoothened

SMO is a protein that acts as a key component in the hedgehog signaling pathway. When activated by the hedgehog molecule, SMO triggers a cascade of events leading to cell growth and differentiation. Dysregulation of SMO activity has been implicated in various cancers.

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SHH

Sonic Hedgehog

SHH is a signaling protein that plays a critical role in embryonic development and tissue homeostasis. It binds to the PTCH1 receptor, activating the hedgehog pathway and promoting cell growth and differentiation.

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cholesterol

A waxy, fat-like substance found in all cells.

Cholesterol is a vital component of cell membranes, contributing to their structural integrity and fluidity. It also serves as a precursor for the synthesis of various hormones and bile acids.

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cancer

Uncontrolled cell growth and spread.

Cancer is a group of diseases characterized by the uncontrolled proliferation and spread of abnormal cells. It arises from mutations in genes that regulate cell growth and division.

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medulloblastoma

A type of brain cancer that originates in the cerebellum.

Medulloblastoma is a malignant brain tumor that develops in the cerebellum, the part of the brain responsible for coordinating movement and balance. It is the most common pediatric brain tumor.

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basal cell carcinoma

A type of skin cancer that arises from the basal cells.

Basal cell carcinoma is the most common type of skin cancer. It develops from the basal cells, which are found in the deepest layer of the epidermis. It typically appears as a pearly or waxy bump and can be cured with local treatments.