Identity Crisis: Weill Cornell Study Reframes Hodgkin Lymphoma as an Aborted State of Cell Development

Weill Cornell researchers find Hodgkin lymphoma cells are B cells stuck in a failed state of development, opening doors for UPR-targeted therapies.

By: AXL Media

Published: Apr 24, 2026, 12:22 PM EDT

Source: Information for this report was sourced from Weill Cornell Medicine and the Blood Cancer Journal.

A Developmental "Identity Crisis" in B Cells

In a study published April 22, 2026, in Blood Cancer Journal, a multidisciplinary team of researchers demonstrated that Hodgkin lymphoma (HL) cells—specifically the hallmark Reed-Sternberg cells—are the result of a developmental process gone wrong. Traditionally viewed as a cancer of uncontrolled growth, the research suggests HL is actually a cancer of failed differentiation. The cells begin the journey from a standard B cell toward a specialized plasma cell but become "stuck" partway through. While they successfully deactivate key B cell features, they fail to achieve the functional capacity of plasma cells, leading to a malignant state characterized by a profound identity crisis.

The Role of the Unfolded Protein Response (UPR)

By comparing gene expression profiles of primary tumors from Hodgkin lymphoma and primary mediastinal B cell lymphoma (PMBL), the team uncovered a biological signature more akin to multiple myeloma, a plasma cell cancer. A primary finding was the hyper-activation of the Unfolded Protein Response (UPR) pathway in HL cells. In healthy plasma cells, the UPR manages the physiological stress of massive antibody production. However, because HL cells are unable to actually produce these antibodies, they appear to be co-opting the UPR as a survival mechanism to manage internal cellular strain, effectively turning a stress-relief system into a shield against cell death.

Sophisticated Immune Evasion Strategies

The research also revealed new details on how Hodgkin lymphoma escapes the body’s natural defenses. The study highlighted two primary evasion tactics: