Lichen planus-like lesions in 36 patients with pemphigus: A cross-sectional study

Uncommon and Unusual Variants of Autoimmune Bullous Diseases

Background

Autoimmune blistering diseases (AIBDs) are a type of dermatosis with antibodies produced against various structural proteins of the epidermis or dermoepidermal junction. AIBDs are broadly divided into intraepidermal and subepidermal types. Apart from the common AIBDs, there is an array of uncommon AIBDs.

Objective

To discuss uncommon variants of AIBDs so that the readers are updated about them.

Methods

In this review, we have discussed uncommon and unusual variants like pemphigus herpetiformis, IgA pemphigus, paraneoplastic pemphigus, induced pemphigus, IgG/IgA pemphigus, oral lichenoid pigmentation in pemphigus, pemphigus acanthoma, and follicular pemphigus. Rarer variants of the pemphigoid group of disorders include anti-laminin 332 pemphigoid, mixed linear IgA/IgG pemphigoid, anti-p200 pemphigoid, Brunsting-Perry pemphigoid, IgM pemphigoid, granular C3 pemphigoid, anti-p105 pemphigoid, ORF-induced anti-laminin 332 pemphigoid, and acral purpura in dermatitis herpetiformis.

Conclusion

This review will help in early diagnosis and treatment of uncommon and unusual variants of AIBDs.

Pemphigus and pemphigoid research by dermatologists and stomatologists: A scientometric and comparative study

Background/purpose

Pemphigus and pemphigoid are systemic bullous autoimmune diseases affecting skin and/or mucosal membranes with the life-threatening nature, especially pemphigus vulgaris. The papers published by dermatologists and stomatologists preferentially represent their concerns of a mucocutaneous disease.

Materials and methods

The objective of this study was to compare the scientometric characteristics of pemphigus and pemphigoid publications by dermatologists and stomatologists in the Scopus database.

Results

There are 9276 and 760 papers published by dermatologists and stomatologists, respectively. The annual number of the publications by dermatologists stably raised from 218 to 526 during 2007-2022; while the number by stomatologists raised with a small amount from 18 to 51 during this period. For the most-cited top-200 papers, the total citation count is 42,766 and the h index is 148 for pemphigus publications by dermatologists; whereas the count is 14,689 and h index is 63 for publications by stomatologists. Notably, first signs of pemphigus often appear in oral mucosa, manifesting as erythema, blisters, as well as mouth ulcer, gingivitis, lichen planus-like pemphigus.

Conclusion

This study firstly reports the scientometric characteristics of pemphigus publications by dermatologists and stomatologists. The scale and citations of dermatologists' publications greatly outweigh stomatologists' ones, suggesting stomatologists can learn from and more cooperate with dermatologists regarding pemphigus research.

A potential reciprocal emergence of regulatory T cells in oral lichen planus and pemphigus vulgaris: A meta-analysis

Oral lichen planus (OLP) and pemphigus vulgaris (PV) are 2 common inflammatory mucocutaneous diseases of immune-based etiology. Evidence indicates regulatory T (Treg) cells maybe play a role in the pathogenesis of OLP and PV, which are caused by aberrant immune responses. In this report, 7 eligible case-control studies containing 517 OLP patients and 261 healthy controls (HC) were identified. The level of Tregs was significantly higher in OLP patients than HC (mean difference: 1.79; 95%CI: 0.99, 2.60). On the other hand, 7 eligible case-control studies containing 169 PV patients and 121 HC were identified. Conversely, the level of Tregs was significantly lower in PV patients than HC (mean difference: -2.49; 95%CI: -3.90, -1.08). Collectively, this analysis for the first time reported reciprocal emergence of Tregs in OLP and PV using meta-analysis, and provided an interesting insight into a previously undescribed the linkage of the 2 mucocutaneous diseases.

Coexistence of Pemphigus Vulgaris and Lichen Planus following COVID-19 Vaccination

SARS-CoV-2 vaccines were approved without long-term monitoring due to emergent situation and might have several side effects. Herein, we describe the first case with development of both LP and PV following COVID-19 vaccination. Immunological alteration due to COVID-19 vaccination and its potential role in triggering autoimmune disorders were also dealt with.