Oxytocin · research summary

Maternal Social Support Reshapes the Offspring Brain Transcriptome to Buffer Prenatal Stress in Mice.

Research square · 2026. Summary drawn from the study's full text. Each statement is followed by the exact sentence it comes from. This is a research summary, not medical advice.

Study type

Preclinical animal study using a mouse model of prenatal stress and social support
“Using a mouse model, we examined whether gestational social support from a familiar female protects against prenatal stress and whether this protection restores a stress-free molecular phenotype or engages a distinct compensatory program.”

Subjects

CF-1 mice (female dams, support females, and offspring)
“CF-1 mice (crlfcen:CF1) from the colony of the Bioterio Central, Facultad de Ciencias Exactas y Naturales (University of Buenos Aires), were used for all experiments.”

Sample size

Approximately 8-12 animals per group for behavioral and molecular analyses
“Data are presented as mean ± SD (n = 10–12 per group).”

Duration

Prenatal stress exposure from gestational day 1 to 12, with offspring assessments up to postnatal day 35
“Prenatal stress was applied daily from GD1 to GD12.”

Reported findings

Social support prevented prenatal stress-induced deficits in maternal care, offspring maternal odor preference, and long-term spatial memory
“Strikingly, socially supported mothers and their offspring were virtually indistinguishable from unstressed controls across these behavioral and candidate-gene measures.”
Social support increased affiliative interactions specifically in response to the pregnant female's distress
“Female companions increased affiliative interactions specifically in response to the pregnant female’s distress, consistent with a targeted prosocial response.”
The transcriptome of socially supported offspring did not return to the control state but diverged further along the same trajectory as prenatal stress
“Instead, it diverged further along the same trajectory as prenatal stress, indicating an amplified rather than reversed molecular shift.”

Limitations stated by the authors

Transcriptomic analyses were restricted to the prefrontal cortex and a single developmental time point, and the design does not establish causal relationships among maternal physiology, behavior, and offspring outcomes
“First, transcriptomic analyses were restricted to the prefrontal cortex and a single developmental time point, so the identified changes may represent only part of the broader neural adaptations induced by the prenatal social environment.”

Source: PubMed 42818933 · DOI 10.21203/rs.3.rs-10820227/v1 · all study summaries

Study type

Preclinical animal study using a mouse model of prenatal stress and social support

“Using a mouse model, we examined whether gestational social support from a familiar female protects against prenatal stress and whether this protection restores a stress-free molecular phenotype or engages a distinct compensatory program.”

Reported findings

Social support prevented prenatal stress-induced deficits in maternal care, offspring maternal odor preference, and long-term spatial memory

“Strikingly, socially supported mothers and their offspring were virtually indistinguishable from unstressed controls across these behavioral and candidate-gene measures.”

Social support increased affiliative interactions specifically in response to the pregnant female's distress

“Female companions increased affiliative interactions specifically in response to the pregnant female’s distress, consistent with a targeted prosocial response.”

The transcriptome of socially supported offspring did not return to the control state but diverged further along the same trajectory as prenatal stress

“Instead, it diverged further along the same trajectory as prenatal stress, indicating an amplified rather than reversed molecular shift.”

Limitations stated by the authors

Transcriptomic analyses were restricted to the prefrontal cortex and a single developmental time point, and the design does not establish causal relationships among maternal physiology, behavior, and offspring outcomes

“First, transcriptomic analyses were restricted to the prefrontal cortex and a single developmental time point, so the identified changes may represent only part of the broader neural adaptations induced by the prenatal social environment.”