Increasing evidence suggests that aberrant long non-coding RNAs (lncRNAs) are significantly correlated with the pathogenesis, development and metastasis of cancers. RHPN1 antisense RNA 1 (RHPN1-AS1) is a 2030-bp transcript originating from human chromosome 8q24. However, the role of RHPN1-AS1 in uveal melanoma (UM) remains to be clarified. In this study, we aimed to elucidate the molecular function of RHPN1-AS1 in UM. The RNA levels of RHPN1-AS1 in UM cell lines were examined using the quantitative real-time polymerase chain reaction (qRT-PCR). Short interfering RNAs (siRNAs) were designed to quench RHPN1-AS1 expression, and UM cells stably expressing short hairpin (sh) RHPN1-AS1 were established. Next, the cell proliferation and migration abilities were determined using a colony formation assay and a transwell migration/invasion assay. A tumor xenograft model in nude mice was established to confirm the function of RHPN1-AS1 in vivo. RHPN1-AS1 was significantly upregulated in a number of UM cell lines compared with the normal human retinal pigment epithelium (RPE) cell line. RHPN1-AS1 knockdown significantly inhibited UM cell proliferation and migration in vitro and in vivo. Our data suggest that RHPN1-AS1 could be an oncoRNA in UM, which may serve as a candidate prognostic biomarker and target for new therapies in malignant UM.

Purpose: Divided nevus with verrucous hyperplasia will always recur after surgery but non-verrucous divided eyelid nevus rarely recur. This study analyzed the differential expression of Ki-67, S100, Melan A and HMB45 and identified the correlation between the clinical and histopathological features of verrucous and non-verrucous divided eyelid nevus. Methods: This study included 29 patients, of whom 8 patients had verrucous divided nevus. Immunohistochemistry labeling was used to assess the expression of Ki-67, S100, Melan A and HMB45 after excision. The difference between verrucous and non-verrucous divided eyelid nevus was analyzed. Results: The patients’ ages ranged from 2 to 59 years, with a mean age of 19 years. The lesion size ranged from 1.5 to 2.0 cm in diameter and invaded the eyelid margins and the posterior lamella of the eyelids. Immunohistochemistry labeling showed strong positivity for approximately 98.5% of S100 and positive staining for approximately 27.6% of Ki-67, 72.4% of Melan A and 6.8% of HMB45. However, Ki-67 was significantly upregulated in verrucous divided nevus of the eyelids compared with non-verrucous divided nevus, with approximately 38.8% upregulation in verrucous and 18.3% upregulation in non-verrucous nevus. Conclusions: This study correlated the clinic-pathologic features of verrucous divided eyelid nevus by means of statistically analyzing the varied clinical features and pathological impressions. The significant over-expression of S100 may be used as an indicator of divided nevus of the eyelids, and the over-expressed Ki-67 may contribute to the recurrence of verrucous divided nevus. High expression of HMB45 and Melan A may represent malignant transformation.

Orbital fractures, particularly of the medial and inferior walls, often require precise reconstruction to restore orbital volume and prevent enophthalmos, diplopia, and facial deformity. The selection of repair material, ranging from titanium meshes and porous polyethylene to resorbable polymers and tissue-engineered scaffolds, is therefore central to surgical success, yet a clinically oriented synthesis of the available options remains lacking. This study combines a bibliometric mapping with a focused review of repair materials to chart how the field has evolved and to clarify the relationship between material properties, fracture pattern, and treatment strategy. Literature published from 1990 to 2025 was retrieved from the Web of Science Core Collection and analyzed using VOSviewer, CiteSpace, and the R package “bibliometrix”; 1156 articles were included. The USA contributed the largest number of publications (272), followed by South Korea (124) and China (118), with the University of Helsinki (58 articles) and the Journal of Craniofacial Surgery (H-index 32) being the most productive institution and journal, respectively. Six thematic clusters were identified: biomaterial types, outcome prediction, complications, absorbable polymers, allografts, and surgical approaches. Keyword burst analysis highlighted emerging interests in “floor” (2021–2025) and “intraoperative navigation” (2022–2025). We further map these clusters onto concrete clinical scenarios: small orbital floor defects may be managed with resorbable polymers, whereas extensive, comminuted fractures or cases with severe enophthalmos require the rigid support of titanium or patient-specific implants (PSI). The field is progressing from conventional fixation toward computer-assisted planning, PSI, and bioactive tissue-engineered constructs. Future efforts should prioritize validating navigation-guided implantation for orbital floor reconstruction while advancing novel biomaterials that promote osteogenesis and minimize complications.

Introduction: Retinoblastoma is divided into two clinical types, sporadic and heritable, and is the most common primary intraocular malignancy in infancy and childhood. It was the first malignancy to demonstrate the genetic etiology of cancer, with the RB1 gene as the only pathological gene present in heritable cases. Although the RB1 mutation p.E125* had been previously reported in other retinoblastoma patients, it lacked functional analysis. Methods: In this study, we identified the RB1 p.E125* mutation in a bilateral retinoblastoma patient from China. We investigated the distribution, cell localization, and function of this mutation using molecular biology and structural analysis following the transfection of cells with plasmids encoding the mutant RB1 gene. Results: Functional analyses revealed abnormal protein localization, altered cell cycle distribution, and apoptosis in cells transfected with the mutant RB1 plasmids. Discussion: Our findings contribute to a better understanding of RB1 mutation hotspots. Furthermore, our results highlight the importance of offering targeted genetic testing and counseling to families with RB1 mutations. The identification of the somatic origin of this mutation was vital in ruling out the heritability of this condition in this specific patient.