RESEARCH: CANCER
FOLDING PROJECT #15203 PROFILE

This project looks at how PTCH1, a protein in our cells, moves cholesterol around to control cancer growth. When PTCH1 doesn't work right, it can lead to cancers like medulloblastoma and basal cell carcinoma. Understanding this process 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 essential for cell function.

Cholesterol is a vital component of cell membranes, aiding in their structure and fluidity. It also serves as a precursor for the production of hormones and vitamin D. While crucial for life, high cholesterol levels can contribute to heart disease.

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PTCH1

Patched 1

PTCH1 is a gene that codes for a protein involved in the hedgehog signaling pathway. This pathway plays a crucial role in embryonic development and tissue regeneration. Mutations in PTCH1 can lead to various developmental disorders and cancers.

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SMO

Smoothened

SMO is a protein that acts as a receptor in the hedgehog signaling pathway. It is activated by binding to ligands such as SHH, leading to downstream signaling events that regulate cell growth and differentiation.

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SHH

Sonic hedgehog

SHH is a signaling molecule that plays a vital role in embryonic development and tissue regeneration. It binds to the PTCH1 protein, activating the hedgehog signaling pathway.

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hedgehog signaling pathway

A conserved signaling cascade involved in development and cell fate determination.

The hedgehog signaling pathway is a critical communication system within cells that regulates various developmental processes, such as tissue growth, patterning, and differentiation. Dysregulation of this pathway can contribute to diseases like cancer.

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medulloblastoma

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

Medulloblastoma is an aggressive childhood brain cancer that arises from cells in the cerebellum, a region responsible for coordinating movement and balance. Treatment typically involves surgery, radiation therapy, and chemotherapy.

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basal cell carcinoma

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

Basal cell carcinoma is the most prevalent form of skin cancer. It develops from abnormal growth in the basal cells, which are responsible for producing new skin cells. While generally slow-growing and treatable, it can spread if left untreated.