What does this research mean for the field?

Androgen treatment attenuates the severity of lupus-associated diffuse alveolar hemorrhage (DAH) by restoring pulmonary natural killer (NK) cell predominance, which is otherwise reduced during disease development. Novelty: ClaimNovelty.NOVEL_FINDING. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

To determine how pulmonary innate lymphoid cells undergo remodeling during lupus-associated diffuse alveolar hemorrhage and evaluate whether androgen signaling modulates natural killer cell homeostasis and disease severity.

September 5, 2026AutoimmunityOpen Access

Androgen-associated remodeling of pulmonary NK cells and sex-biased susceptibility in lupus-associated diffuse alveolar hemorrhage

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Authors

LWLifang Wen XLXin Luo XCXiaoyun Chen

Discussion

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Overview

Preclinical study reveals that androgen therapy restores pulmonary NK cells and attenuates diffuse alveolar hemorrhage in female mice, highlighting hormonal targets for lupus lung complications.

Key Points

To determine how pulmonary innate lymphoid cells undergo remodeling during lupus-associated diffuse alveolar hemorrhage and evaluate whether androgen signaling modulates natural killer cell homeostasis and disease severity.
Pristane-induced diffuse alveolar hemorrhage models were established in C57BL/6J and Rag2−/− mice to evaluate innate lymphoid cell alterations independent of adaptive lymphocytes.
Pulmonary innate lymphoid cells were profiled via single-cell transcriptomics and flow cytometry, with baseline sex comparisons between healthy humans and mice.
In vivo interventions included male castration, female testosterone propionate administration, and antibody-mediated natural killer cell depletion.
Diffuse alveolar hemorrhage caused a marked reduction in pulmonary natural killer cells expressing elevated effector genes (Prf1, Ifng) alongside inhibitory Lag3 in both wild-type and Rag2−/− mice.
Testosterone propionate administration in female mice restored pulmonary natural killer cell dominance and significantly attenuated hemorrhage severity, whereas male castration did not significantly alter disease severity.
Pre-challenge depletion of natural killer cells trended toward exacerbating pulmonary hemorrhage severity (p = 0.084).

Cite This Study

Wen et al. (2026) studied this question.

synapsesocial.com/papers/6a9bd4536b95aff0620ebf97 https://doi.org/10.1080/08916934.2026.2722939

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September 5, 2026AutoimmunityOpen Access

Androgen-associated remodeling of pulmonary NK cells and sex-biased susceptibility in lupus-associated diffuse alveolar hemorrhage

View Full Paper

Ask AI

Bookmark

Authors

LWLifang Wen XLXin Luo XCXiaoyun Chen

Discussion

Member takes

Overview

Preclinical study reveals that androgen therapy restores pulmonary NK cells and attenuates diffuse alveolar hemorrhage in female mice, highlighting hormonal targets for lupus lung complications.

Key Points

To determine how pulmonary innate lymphoid cells undergo remodeling during lupus-associated diffuse alveolar hemorrhage and evaluate whether androgen signaling modulates natural killer cell homeostasis and disease severity.
Pristane-induced diffuse alveolar hemorrhage models were established in C57BL/6J and Rag2−/− mice to evaluate innate lymphoid cell alterations independent of adaptive lymphocytes.
Pulmonary innate lymphoid cells were profiled via single-cell transcriptomics and flow cytometry, with baseline sex comparisons between healthy humans and mice.
In vivo interventions included male castration, female testosterone propionate administration, and antibody-mediated natural killer cell depletion.
Diffuse alveolar hemorrhage caused a marked reduction in pulmonary natural killer cells expressing elevated effector genes (Prf1, Ifng) alongside inhibitory Lag3 in both wild-type and Rag2−/− mice.
Testosterone propionate administration in female mice restored pulmonary natural killer cell dominance and significantly attenuated hemorrhage severity, whereas male castration did not significantly alter disease severity.
Pre-challenge depletion of natural killer cells trended toward exacerbating pulmonary hemorrhage severity (p = 0.084).

Cite This Study

Wen et al. (2026) studied this question.

synapsesocial.com/papers/6a9bd4536b95aff0620ebf97 https://doi.org/10.1080/08916934.2026.2722939

View Full Paper

Ask AI

Bookmark