What does this research mean for the field?

Interstitial palladin expression correlates with tubulointerstitial chronicity and is associated with poorer event-free survival in patients with lupus nephritis. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

To evaluate whether interstitial expression of the actin-associated protein palladin is associated with histopathological chronicity indices and long-term clinical prognosis in lupus nephritis.

August 22, 2026Lupus

Interstitial palladin is associated with tubulointerstitial chronicity and adverse outcomes in patients with lupus nephritis

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Authors

NYNaoki YamamotoKanazawa University NSNorihiko SakaiKanazawa University SNShiori NakagawaKanazawa University

Discussion

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Implication

Retrospective study finds interstitial palladin expression correlates with tubulointerstitial chronicity in lupus nephritis, suggesting its potential role in disease progression.

Key Points

To evaluate whether interstitial expression of the actin-associated protein palladin is associated with histopathological chronicity indices and long-term clinical prognosis in lupus nephritis.
Retrospectively analyzed 34 Japanese patients with biopsy-proven lupus nephritis evaluated at Kanazawa University Hospital between 1990 and 2018.
Quantified interstitial palladin area using immunohistochemistry (log2-transformed) and examined its colocalization with α-smooth muscle actin (αSMA) via immunofluorescence.
Correlated expression levels with modified NIH activity and chronicity indices, and evaluated event-free survival for renal replacement therapy initiation or all-cause death over a median follow-up of 10.1 years (IQR, 3.3–17.5).
Palladin was predominantly expressed in the interstitium, colocalized with αSMA-positive cells, and log2 palladin correlated significantly with the modified NIH chronicity index (ρ = 0.61, p < 0.01), tubular atrophy (ρ = 0.53, p < 0.01), interstitial fibrosis (ρ = 0.56, p < 0.01), and interstitial inflammation (ρ = 0.55, p < 0.01).
Log2 palladin showed no significant correlation with the total activity index (ρ = 0.24, p = 0.16).
Seven patients reached the composite endpoint (five in the high-palladin group vs. two in the low-palladin group), with high palladin expression significantly associated with poorer event-free survival (log-rank p = 0.04).

Cite This Study

Yamamoto et al. (2026) studied this question.

synapsesocial.com/papers/6a895f9cca7ade938187e5da https://doi.org/10.1177/09612033261479120

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August 22, 2026Lupus

Interstitial palladin is associated with tubulointerstitial chronicity and adverse outcomes in patients with lupus nephritis

View Full Paper

Ask AI

Bookmark

Authors

NYNaoki YamamotoKanazawa University NSNorihiko SakaiKanazawa University SNShiori NakagawaKanazawa University

Discussion

Member takes

Implication

Retrospective study finds interstitial palladin expression correlates with tubulointerstitial chronicity in lupus nephritis, suggesting its potential role in disease progression.

Key Points

To evaluate whether interstitial expression of the actin-associated protein palladin is associated with histopathological chronicity indices and long-term clinical prognosis in lupus nephritis.
Retrospectively analyzed 34 Japanese patients with biopsy-proven lupus nephritis evaluated at Kanazawa University Hospital between 1990 and 2018.
Quantified interstitial palladin area using immunohistochemistry (log2-transformed) and examined its colocalization with α-smooth muscle actin (αSMA) via immunofluorescence.
Correlated expression levels with modified NIH activity and chronicity indices, and evaluated event-free survival for renal replacement therapy initiation or all-cause death over a median follow-up of 10.1 years (IQR, 3.3–17.5).
Palladin was predominantly expressed in the interstitium, colocalized with αSMA-positive cells, and log2 palladin correlated significantly with the modified NIH chronicity index (ρ = 0.61, p < 0.01), tubular atrophy (ρ = 0.53, p < 0.01), interstitial fibrosis (ρ = 0.56, p < 0.01), and interstitial inflammation (ρ = 0.55, p < 0.01).
Log2 palladin showed no significant correlation with the total activity index (ρ = 0.24, p = 0.16).
Seven patients reached the composite endpoint (five in the high-palladin group vs. two in the low-palladin group), with high palladin expression significantly associated with poorer event-free survival (log-rank p = 0.04).

Cite This Study

Yamamoto et al. (2026) studied this question.

synapsesocial.com/papers/6a895f9cca7ade938187e5da https://doi.org/10.1177/09612033261479120

Also Consider

Synapse has enriched 4 closely related papers on similar clinical questions. Consider them for comparative context:

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