UPDATE: Famous Tumors

Episode Summary

Executive Summary: This Radiolab episode explores the eerie, fascinating world of tumors that outgrow the body: President Grant’s fatal throat cancer, a contagious facial cancer ravaging Tasmanian devils, a transmissible dog tumor that may be millennia old, and the immortal HeLa cells from Henrietta Lacks that transformed science while raising major ethical and privacy questions. It ends by showing how human meaning, identity, and consent complicate biomedical progress.

Main Topics: Grant’s tumor as historical artifact (Priority: 5/5): The episode opens at the National Museum of Health and Medicine, where tissue from President Ulysses S. Grant’s throat tumor is preserved and displayed, framing tumors as both medical objects and historical evidence. Transmissible cancer in Tasmanian devils (Priority: 5/5): A facial cancer spread among devils through biting and inbreeding, collapsing populations and forcing listeners to rethink cancer as potentially contagious under rare conditions. Cancer as evolution and selection (Priority: 5/5): A cancer biologist explains tumors as competing cell populations that accumulate mutations, with rare variants gaining advantages for growth, invasion, and drug resistance. The long-lived canine transmissible venereal tumor (Priority: 4/5): A second transmissible tumor in dogs is described as an ancient, essentially immortal animal cell line, blurring the line between tumor and organism. Tumors that can feel beneficial (Priority: 4/5): The episode examines cases where a benign brain tumor produced pleasurable or spiritual experiences, including a man with safety-pin-induced orgasms and a nun whose tumor intensified her sense of God. Henrietta Lacks and the immortal HeLa line (Priority: 5/5): The story of Henrietta Lacks shows how a cervical tumor became the HeLa cell line, enabling huge advances in science, vaccine development, and biotechnology while exposing exploitation and consent issues. Ethics, consent, and genomic privacy (Priority: 5/5): The transcript closes with the Lacks family’s struggle over sequencing and public release of the HeLa genome, leading to controlled access and family participation in oversight.

Key Arguments: Cancer is not always a single rogue cell; it is often a dynamic ecosystem of competing cells that evolve over time, which helps explain invasion and treatment resistance. Rare transmissible cancers in Tasmanian devils and dogs show that under unusual biological and behavioral conditions, tumors can act like infectious parasites. Genetic similarity and inbreeding can leave animals unable to recognize foreign tumor cells, enabling transmission across individuals. Some tumors, especially benign brain tumors, can create profound subjective benefits—pleasure, altered perception, or spiritual intensity—making treatment decisions ethically complex. HeLa cells were foundational to modern biomedicine, including vaccine testing and cell culture, but they were taken and used without the Lacks family’s informed consent. Scientific progress does not eliminate the need for consent and privacy; genomic data can reveal sensitive information about patients and their relatives. When a tumor alters consciousness in positive ways, doctors must balance medical risk against the patient’s lived experience and quality of life.

Data Points: Grant cigar consumption: Up to 12 cigars a day - Used to describe President Ulysses S. Grant before his fatal throat cancer. Grant tumor diagnosis year: 1885 - Tissue was removed and examined in February 1885. Tasmanian devil population collapse: Up to 90% - Some devil populations collapsed rapidly after the facial cancer spread. Cancer mutations leading to invasion: Roughly 5 to 20 mutations - Biologist Carlo Maley described the number of mutations that can produce highly invasive cancer cells. Dog tumor age: 200 to 2,500 years - The canine transmissible venereal tumor may be the oldest continuous animal cell line on Earth. Temporal lobe tumor size: About the size of a raisin - The nun in the narrative had a benign meningioma in the temporal lobe. HeLa cell doubling time: Every 24 hours - Mary Kubicek described HeLa cells as doubling in size daily. HeLa production scale: About 6 trillion cells a week - The Tuskegee production center’s output at its peak. Henrietta Lacks age at death: 31 - Henrietta died young after her cervical cancer progressed. Lacks family meeting: 3 options - NIH presented three governance options for controlling access to the HeLa genome.

Pivotal Quotes: "You may know who's buried in Grant's tomb, but I know what's buried in Grant's tumor." — Robert Krulwich: Opening setup introducing the preserved tissue sample from President Grant. "This tumor is essentially an animal. A parasite." — David Quammen: Explaining the long-lived canine transmissible venereal tumor as an entity that behaves like a living parasite. "You're famous, but nobody knows it." — Deborah Lacks: Deborah speaking to a vial of HeLa cells, expressing grief and awe at her mother’s posthumous biological legacy.

Implications: The episode urges listeners to see tumors as biological, historical, and ethical forces: they can spread, evolve, benefit science, or alter identity. Medical innovation must be paired with consent, privacy protections, and respect for the people behind the cells.