Clinical course and potential associated factors of progressive calcinosis cutis in early systemic sclerosis: a cohort study

BACKGROUND

Calcinosis cutis of hands can progress and impair hand function in systemic sclerosis (SSc). Understanding the natural disease and comprehensive management is crucial.

OBJECTIVE

To examine clinical course and identify risk factors associated with progressive calcinosis cutis in early SSc.

METHODS

Dual time-point hand radiography was performed at initial and after diagnosis at median interval (range 2.9 ± 0.4 years) in 53 recruited patients with early SSc. Progressive calcinosis cutis defined as the worsening of severity according to simple soring scoring system (no, mild, moderate, severe) comparing to previous hand radiography. Odds ratio (OR) and their 95%CI were used to evaluate associated factors and calcinosis cutis progression.

RESULTS

A total of 35 cases (155 per 100 person-year), showed progressive calcinosis cutis with the incidence of 22.6 per 100-person-years (95%CI 16.2-31.4). The most common area of progressive calcinosis cutis was at right distal phalanx, 12 of 35 (22.6%). Although statistically not significant by logistic regression analysis, elderly patients, Raynaud's phenomenon, ischemic ulcer, telangiectasia, and salt-pepper tended to be more frequent in progressive calcinosis cutis than those who had no progression. Around one-quarter of those who had no calcinosis cutis experienced worsening across more than one level of severity.

CONCLUSION

Progression of calcinosis cutis in early SSc increased over time, particularly within 3 years after the first evaluation. Elderly patients and those with vasculopathy were found more frequently. Further study with a larger cohort is needed to support these findings.

Use of biologic drug in the treatment of localized scleroderma and systemic sclerosis in children: A scoping review

OBJECTIVE

Biologic drugs are a potential treatment option in resistant cases of juvenile scleroderma. In this review, we aimed to examine previous studies regarding biologic drug use in pediatric patients with localized scleroderma and systemic sclerosis.

METHODS

We performed a search on MEDLINE and Scopus for articles involving pediatric localized scleroderma and systemic sclerosis patients treated with biologic drugs.

RESULTS

We identified 17 articles describing 58 pediatric patients with localized scleroderma treated with biologic drugs and 12 articles describing 29 pediatric patients with systemic sclerosis treated with biologic drugs during our literature search. The most frequently used biologic drug in localized scleroderma treatment was abatacept (55.2 %), followed by tocilizumab (48.3 %). These biologic drugs were mainly preferred for treating resistant/progressive skin disease in pediatric patients with localized scleroderma (58.5 % and 68.8 %, respectively). The improvement rates associated with abatacept and tocilizumab were 92.9 % and 77.4 %, respectively. Adverse events were observed in 23.5 % of all localized scleroderma patients. The most frequently used biologic drug in systemic sclerosis treatment was rituximab (51.7 %), followed by tocilizumab (44.8 %). Rituximab was predominantly favored for managing cardiac involvement (45.5 %), whereas tocilizumab was preferred for pulmonary involvement (50 %) in pediatric patients with systemic sclerosis. The improvement rates associated with rituximab and tocilizumab were 72.7 % and 94.1 %, respectively. Adverse events were reported in 40 % of all systemic sclerosis patients.

CONCLUSION

Our results showed that abatacept and tocilizumab were more frequently used in patients with localized scleroderma, while rituximab and tocilizumab were the predominantly used biologics in patients with systemic sclerosis. The improvement rate with these biologics were quite high with acceptable safety profile.

Disabling pansclerotic morphoea: a century of discovery

BACKGROUND

Disabling pansclerotic morphoea (DPM) is a rare systemic inflammatory disorder at the severe end of the localized scleroderma spectrum. It primarily affects children < 14 years old. DPM is characterized by rapid sclerosis with circumferential involvement that frequently extends to the fascia, muscle and bone. Disease progression often involves the development of sclerotic plaques, chronic skin ulcers and painful joint contractures, leading to patient immobility and a high mortality rate. Internal organ fibrosis is typically absent. The aggressive and systemic nature of DPM leads patients to seek multidisciplinary care. Current treatments are targeted toward immunomodulation and measures to preserve mobility while limiting infection, but they often have limited efficacy.

OBJECTIVES

To summarize all patients with DPM reported in the English-language literature, common clinical symptoms, laboratory investigations and treatments reported to date.

METHODS

A literature search was conducted on PubMed and Google Scholar. All English-language original articles, case reports, abstracts and letters to the editor were included. Each publication was reviewed for diagnosis, clinical presentation, available laboratory/histological studies, treatment and outcome.

RESULTS

We identified 52 reports comprising 86 patients published up to December 2023. Assessment of published cases suggested that the number of treatments does not influence disease outcome and that female patients are younger at the time of reported death.

CONCLUSIONS

Clinician familiarity and awareness of common DPM symptoms are important for an accurate and early diagnosis. Knowledge of treatments that have been reported to be effective in mitigating disease progression may be helpful in expanding the available treatment options.

Antioxidant, Antiinflammation, and Antifibrotic Activity of Ciplukan (Physalis angulata L). Extract

Purpose

Physalis angulata Linn. (Ciplukan) is a plant widely used in traditional medicine in subtropical and tropical regions. Most studies focus on its antioxidant and anti-inflammatory activity. Many studies also reported its therapeutic potential for treating cancer, malaria, hepatitis, rheumatism, liver problems, and tumors, but few studies have reported its anti-fibrosis activity. Here, we aimed to investigate the potential of P. angulata as an antioxidant and anti-inflammatory that may be correlated with its anti-fibrosis action.

Methods

In our study, we treated 3T3-L1 and TGF-β-induced 3T3-L1 cells with an ethanol extract of P. angulata. We then monitored the cell's response, evaluated the antioxidant activity using an MTT assay, and observed the cells' migration using the cell scratch assay. We used RT-PCR to determine the expression of HIF-1α and IL-6 on TGF-β-induced 3T3-L1 cells.

Results

The ethanol extract of P. angulata showed antioxidant activity and promoted cell proliferation on 3T3-L1 cells. Interestingly, the extract inhibited the migration of TGF-β-induced 3T3-L1 cells. Further analysis revealed that the extract could inhibit HIF-1α expression and suppress IL-6 expression on TGF-β-induced 3T3-L1 cells.

Conclusion

The ethanol extract of P. angulata showed antioxidant and anti-inflammation activities in 3T3-L1 cells. Both activities are associated with the antifibrotic activity of P. angulata's ethanol extract.

Synthetic Nucleic Acid Antigens in Localized Scleroderma

We investigated the impact of synthetic nucleic acid antigens on the autoantibody profiles in patients with localized scleroderma, an autoimmune skin disease. Anti-DNA antibodies, including double-stranded DNA (dsDNA) and single-stranded DNA (ssDNA), are common among autoimmune diseases, such as systemic lupus erythematosus and localized scleroderma. Based on recent studies, we hypothesized that the sequence of nucleic acid antigens has an impact on the autoimmune reactions in localized scleroderma. To test our hypothesis, we synthesized a panel of DNA and RNA antigens and used them for autoantibody profiling of 70 children with localized scleroderma compared with the healthy controls and patients with pediatric systemic lupus erythematosus (as a disease control). Among the tested antigens, dsD4, which contains the sequence of the human oncogene BRAF, showed a particularly strong presence in localized scleroderma but not systemic lupus erythematosus. Disease activity in patients was significantly associated with dsD4 autoantibody levels. We confirmed this result in vivo by using a bleomycin-induced mouse model of localized scleroderma. When administered intraperitoneally, dsD4 promoted an active polyclonal response in the mouse model. Our study highlights sequence specificity for nucleic acid antigens in localized scleroderma that could potentially lead to developing novel early-stage diagnostic tools.

Prevalence and clinical association with calcinosis cutis in early systemic sclerosis

OBJECTIVES

Calcinosis cutis is often found with systemic sclerosis (SSc). However the calcinosis cutis and its clinical association among SSc patients is limited. Our aims were to assess the prevalence of calcinosis cutis and its association with clinical features of SSc patients at early onset of the disease.

METHODS

A cross-sectional study on clinical characteristics and hand radiographs of 120 newly diagnosed SSc patients with the onset less than four years were evaluated. Calcinosis cutis was described based on the anatomical regions, density (level 1-3) and shapes (net, plate, stone, and amorphous).

RESULTS

Among all SSc patients enrolled, 62.5% were females and 56.1% were diffuse cutaneous SSc. The mean disease duration was 2.0 ± 1.3 years. Calcinosis cutis was detected in 60 patients with the prevalence of 50% (95%confidence interval (CI), 0.41-0.59), of which 53.3% occurred at distal phalanx, 96.7% had stone shape and 48.3% were high density. Univariate analysis revealed that calcinosis cutis was associated with age (p = .02) and high-density calcinosis cutis was associated with Raynaud's phenomenon (p = .02), ischemic ulcer (p = .04), and telangiectasis (p = .02). Logistic regression analysis revealed that calcinosis cutis at distal phalanx was negatively associated with edema at the onset (odds ratio, 0.09).

CONCLUSION

Occult calcinosis cutis can be detected by hand radiograph in one half of SSc patients at early onset of the disease. Elderly patient has a risk for calcinosis cutis development and Raynaud's phenomenon was associated with high density calcinosis cutis. Calcinosis cutis, particularly at distal phalanx was less likely to be detected in an edematous phase of disease.

Mesenchymal stem cell as a novel approach to systemic sclerosis; current status and future perspectives

Systemic sclerosis is a rare chronic autoimmune disease with extensive microvascular injury, damage of endothelial cells, activation of immune responses, and progression of tissue fibrosis in the skin and various internal organs. According to epidemiological data, women's populations are more susceptible to systemic sclerosis than men. Until now, various therapeutic options are employed to manage the symptoms of the disease. Since stem cell-based treatments have developed as a novel approach to rescue from several autoimmune diseases, it seems that stem cells, especially mesenchymal stem cells as a powerful regenerative tool can also be advantageous for systemic sclerosis treatment via their remarkable properties including immunomodulatory and anti-fibrotic effects. Accordingly, we discuss the contemporary status and future perspectives of mesenchymal stem cell transplantation for systemic sclerosis.

An update on investigations of autoimmune diseases affecting orofacial region

Autoimmune diseases are better diagnosed currently with advances in cellular immunology, molecular biology, and genetics. Clinical diagnosis of systemic and organ specific autoimmune diseases is a challenging task for the Oral physicians and the development of chairside investigation methods has not only saved the time but also cost factor. To understand patient's immune status, the clinical chair side diagnostic aids along with laboratory testing methods are necessary. Laboratory investigations have great importance in detecting, confirming and analyzing the severity, and predicting the prognosis of the autoimmune disease. This article aims to list out the diagnostic methods to diagnose autoimmune conditions and focuses on various diagnostic methods to effectively evaluate autoimmune disease of orofacial region.

Pirfenidone gel in patients with localized scleroderma: a phase II study

Introduction

Localized scleroderma is an inflammatory disease in its first stages and a fibrotic process in later stages, principally mediated by the transforming growth factor β. To date, there is no standard treatment. The objective of this study was to determine the effectiveness and safety of 8% pirfenidone gel in patients with localized scleroderma.

Methods

This was an open phase II clinical trial that included 12 patients. Treatment with pirfenidone was indicated, three times daily for 6 months. Patients were evaluated clinically with the modified Localized Scleroderma Skin Severity Index (mLoSSI), as well with a durometer and histologically using hematoxylin and eosin stain and Masson’s trichrome stain.

Results

The baseline mLoSSI average scores were 5.83 ± 4.80 vs. 0.83 ± 1.75 (P = 0.002) at 6 months. The initial durometer induration of the scleroderma plaques was 35.79 ± 9.10 vs. 32.47 ± 8.97 at 6 months (P = 0.05). We observed histopathological improvement with respect to epidermal atrophy, inflammation, dermal or adipose tissue fibrosis and annex atrophy from 12.25 ± 3.25 to 9.75 ± 4.35 (P = 0.032). The 8% pirfenidone gel application was well tolerated, and no side effects were detected.

Conclusions

This is the first study on the therapeutic use of pirfenidone gel in localized scleroderma. It acts on both the inflammatory and the fibrotic phases. Considering its effectiveness, good safety profile and the advantage of topical application, pirfenidone is a treatment option in this condition.