RESEARCH: CANCER
FOLDING PROJECT #15200 PROFILE

The project explores how PTCH1, a protein that regulates cell growth, moves cholesterol to control cancer-causing signals. Problems with this process can lead to cancers like medulloblastoma and basal cell carcinoma. Understanding how PTCH1 works could help 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 1 protein, a transmembrane receptor involved in the Hedgehog pathway.

PTCH1 is a protein found on cell surfaces. It plays a crucial role in the Hedgehog signaling pathway, which controls important processes like cell growth and development. PTCH1 normally blocks another protein called SMO when there's no Hedgehog signal present. This helps regulate cell division and prevent uncontrolled growth.

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SMO

Smoothened

SMO is a protein that acts as a switch in the Hedgehog signaling pathway. When PTCH1 detects a Hedgehog signal, it releases SMO, allowing it to activate downstream signals that promote cell growth and division.

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SHH

Sonic Hedgehog

SHH is a signaling molecule that triggers the Hedgehog pathway. It plays a vital role in embryonic development and tissue regeneration.

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cholesterol transport

The movement of cholesterol molecules within and between cells.

Cholesterol transport involves the movement of cholesterol molecules through the body. Cells need cholesterol for various functions, such as building cell membranes and producing hormones.

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transmembrane protein

A protein that spans the entire width of a cell membrane.

Transmembrane proteins are embedded within cell membranes. They often act as channels or receptors, allowing molecules to pass through or receive signals from outside the cell.

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cancer

A group of diseases characterized by uncontrolled cell growth.

Cancer is a broad term for diseases where cells grow and divide uncontrollably. This can lead to tumors and the spread of cancer to other parts of the body.

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medulloblastoma

A type of malignant brain tumor that originates in the cerebellum.

Medulloblastoma is a highly aggressive form of brain cancer that develops in the cerebellum, a part of the brain responsible for balance and coordination.

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basal cell carcinoma

The most common type of skin cancer.

Basal cell carcinoma is a type of skin cancer that starts in the basal cells, which are found in the lowest layer of the epidermis (outer layer of skin). It often appears as a pearly or waxy bump and usually grows slowly.