When we think of memory, we think of neurons. These wiry brain cells fire in complex circuits to help us recall names, faces, and where we left our keys. But a new study challenges that assumption. Researchers have discovered that non-neural human cells, including those from the kidney, can also exhibit memory-like behavior – and they’re not just holding vague impressions. These cells appear to recognize and respond to specific patterns of stimulation, much like neurons do during learning.
The study, led by scientists at NYU’s Center for Neural Science, focused on the massed-spaced effect, which describes how spread-out learning sessions are better for memorization than one large session. Traditionally linked to neurons, this effect was tested on two types of engineered human cells, including kidney cells. Researchers used a glowing protein reporter system triggered by memory-related molecules, such as cAMP response element-binding protein (CREB) and extracellular signal-regulated kinase (ERK), to track cellular responses to stimulation patterns.
The results were surprising. Cells exposed to spaced stimuli maintained stronger responses for over 24 hours. This pattern of stronger, long-lasting activity after spaced learning is a hallmark of memory formation. Even more compelling, when scientists blocked CREB or ERK, the memory-like response disappeared.
So what does this mean? At the very least, it suggests that memory might not be unique to the brain. It may be a fundamental feature shared by many cell types, rooted in basic biological processes. While the research was conducted under tightly controlled lab conditions, it opens the door to exciting possibilities. Could we one day “train” cells to stop dividing in cancer or to produce missing hormones?
This proof-of-principle offers a bold new perspective. Learning, memory, and even intelligence may not be limited to neurons. They could be features of cells throughout the body, waiting for the right signals to unlock their potential.
Categorised in: Uncategorized
This post was written by Christine Rizk