Plasma Cell Cheilitis: A Clinicopathological and Immunohistochemical Study of 13 Cases

BACKGROUND: Plasma cell cheilitis is an unusual benign plasma cell proliferative disease of an unknown etiology that typically presents on the lip. OBJECTIVE: The aim of this study was to investigate the clinicopathological characteristics of 13 cases of plasma cell cheilitis. METHODS: The present study investigated the clinical manifestations, treatment modalities, and outcome of 13 patients diagnosed with plasma cell cheilitis from 2011 to 2016 at Kangdong Sacred Heart Hospital and Hallym University Sacred Heart Hospital. Biopsy specimens of the all cases were evaluated using conventional hematoxylin and eosin staining with kappa and lambda immunoglobulin light chain immunohistochemistry. RESULTS: The age of the patients ranged from 39 to 86 years (mean, 64.7 years), with male predominance. Histopathologically, 61.5% and 38.5% of patients showed band-like and pan dermal plasmacytic infiltrates, respectively. Eosinophilic infiltration was noted in 69.2% of patients. All cases showed both kappa and lambda immunoglobulin light chain reactivities, and kappa predominance was confirmed in 9 patients (69.2%). A majority of the patients was treated with local therapy, such as intralesional steroid injection with topical tacrolimus. Among the 13 patients, plasma cell cheilitis completely resolved, partially resolved, and recurred in 3 (23.1%), 5 (38.5%), and 5 patients (38.5%), respectively. CONCLUSION: Plasma cell cheilitis presented as erosive edematous circumscribed patches or plaques affecting mainly the lower lip of elderly male patients. The majority of histopathology cases showed characteristic plasma cell aggregation on the upper dermis that was immunopositive for immunoglobulin light chain, with kappa predominance.

A Case of Primary Cutaneous Plasmacytoma / 대한피부과학회지

Primary cutaneous plasmacytoma is a rare cutaneous B cell lymphoma characterized by monoclonal proliferation of mature plasma cells in the skin without systemic involvement. Although a significant proportion of patients, especially with multiple lesions, went on to develop systemic disease with a poor prognosis, the abnormal clone of plasma cells may arise in the skin and never progress to multiple myeloma involving the bone marrow in a number of patients. We report a case of primary cutaneous plasmacytoma and review data published in the literature. A 19-year-old man developed multiple 0.2 to 0.5cm sized erythematous grouped papules on his posterior neck for 4 years. Histopathologic examination represented superficial and deep interstitial and nodular dense infiltration of plasma cells showing monoclonal expression of immunoglobulin lambda light chain. F-18 FDG coincidence PET(CoDe-PET) scan and serum electrophoresis were within normal limit. Any systemic disease has not developed for 6 months after diagnosis.

Expression of recombined human immunoglobulin ? light chain 022 and TOM1 mRNA in omental adipose tissues of patients with type 2 diabetes and insulin resistance / 第二军医大学学报

Objective:To investigate the expression of recombined human immunoglobulin ? light chain 022 and TOM1 gene and to determine the protein expression of HSIGVL022 in omental adipose tissues of patients with type 2 diabetes and insulin resistance(T2DM-IR).Methods: Fat tissues from greater omentum of T2DM-IR patients and normal controls were obtained.The mRNA levels of recombined human immunoglobulin ? light chain 022 and TOM1 were measured by fluorescent quantitative RT-PCR;expression of HSIGVL022 protein was identified by immunohistochemistry.Results: The mRNA levels of HSIGVL022 and TOM1 in T2DM-IR patients were(34 140?6 160) copy/million house-keeping genes and(4 440?617) copy/million house-keeping genes,respectively;those in control group were(5 930?661) copy/million house-keeping genes and(1 360?82) copy/million house-keeping genes,respectively.There were significant difference between the 2 groups(P

PREPARATION AND PRELIMINARY CLINICAL APPLICATION OF McAb AGAINST HUMAN IgK AND Ig? / 解放军医学杂志

Five hybridoma cell lines have been developed by fusion of SP2/O or NS-1 myeloma cell with splenocytes of BALb/c mice immunized with colostrum and serum IgA and screened by means of ELI-SA sandwich method. Of these, three lines (1Dl, 5C3, 11A7) secreted antibodies against human free A chains and combined A light chains, while the other two lines (4G12. 14A6) against human free K and combined K light chains. The 4G12 reacted better with combined K chains than with free K chains. These cell lines were stable to secrete specific McAb in long term culture for one year, and after storage in liquid nitrogen for ten months as well. With competitive ELISA using solid phase antigen, McAbs 4G12 and 14A6 were proved to react with different antigen epitopes, while McAbs IDl, 5C3 and 11A7 reacted with same antigen epitopes. These McAbs are good in both specificity and sensitivity for detection of paraproteins and Bence-Jones proteins. Mixed McAbs of 4G12-HRP and 1D1-HRP could be used to detect VCA and EA of EB virus satisfactorily. Preliminary application to the detection of antinuclar antibodies was also successful.