← Back to all signals
RESEARCH PAPER ANALYSIS

Immunophenotypic assessment of pure embryonal carcinoma and yolk sac tumour suggests that reprogramming to non-seminoma occurs outside the spermatogonial niche.

AI interpretation is pending for this paper.

Open original publication →
PMID41988850
JournalHistopathology
Publication Date2026-04-16
Ingested2026-07-15 04:28 PM
EXECUTIVE SUMMARY

What the AI sees

Not AI summarized yet.

WHY IT MATTERS

Research significance

Pending deeper interpretation.

ABSTRACT

Source abstract

AIMS: Germ cell neoplasia in situ (GCNIS) is the precursor of GCNIS-derived testicular germ cell tumours, including seminomas and non-seminomas. Most non-seminomas show mixed histology, often including components of seminoma. A small subset presents as pure non-seminomatous germ cell tumors. In these neoplasms, the absence of invasive seminoma. raises the possibility that reprogramming to non-seminoma may occur at an early in-situ stage (i.e., within the spermatogonial niche). This study examined GCNIS associated with pure embryonal carcinoma (EC) and postpubertal-type yolk sac tumour (YST) using immunohistochemistry for transcription factors characteristic of GCNIS/seminoma, EC, and YST phenotypes to determine if reprogramming to non-seminoma occurs within the spermatogonial niche. METHODS: GCNIS associated with pure testicular YST and EC was assessed using OCT4, FOXA2 (only YST), CD30 (only EC), SOX2 (only EC), SOX17, and NANOG immunohistochemistry. Adjacent foci of intratubular and invasive tumour were also evaluated, if present. RESULTS: Sixty-seven pure non-seminomas (63 EC, 4 YST) were evaluated. In all cases, GCNIS expressed OCT4, SOX17, and NANOG. GCNIS associated with EC was consistently negative for CD30 and SOX2, and GCNIS associated with YST was consistently negative for FOXA2. Adjacent invasive EC (62/67 cases) and intratubular EC (19/67) showed the classic EC immunophenotype: OCT4+/NANOG+/SOX17-/SOX2+/CD30+. Similarly, invasive YST adjacent to GCNIS was OCT4-/NANOG-/SOX17+/FOXA2+. CONCLUSIONS: Assessment of transcription factors involved in the induction and maintenance of EC and YST phenotypes suggests that, in pure non-seminomas, reprogramming occurs outside the spermatogonial niche.

SUPPORTING PAPER SET

32 more papers to review

Ranked by current scoring engine
1 Transoral excision of pediatric submandibular gland pleomorphic adenoma: A single-center case series. International journal of pediatric otorhinolaryngology 54.5 2 Endocrine features and hormone-related pathways in Wilms' tumor: From developmental biology to clinical implications. Pediatrics and neonatology 65.3 3 Low Gut Bifidobacterium Relative Abundance and Low Intake of Zinc, Omega-3 Fatty Acids, and Vitamin D Are Associated With Inflammation in Children. Journal of interferon & cytokine research : the official journal of the International Society for Interferon and Cytokine Research 62.5 4 Outcomes of proximal humeral chondroblastoma treated with intralesional curettage, electrocauterization of the cavity and bone grafting: A retrospective study. PloS one 66.4 5 An Integrated Transcriptional and Post-Transcriptional Regulatory Circuit Orchestrated by NUDT21 Maintains the Proliferation and Survival of Neuroblastoma. Neuro-oncology 51.12 6 Sugar rationing during the first 1000 days and Early-Onset Cancer: A Natural Experiment. The American journal of clinical nutrition 67.9 7 Ophthalmic features of WAGR syndrome: strategies for timely diagnosis, surveillance and improved quality of life. BMJ case reports 37.0 8 Bilateral optic nerve infiltration and leukaemic retinopathy as initial signs of relapsed B cell acute lymphoblastic leukaemia with CNS and testicular involvement. BMJ case reports 63.62 9 Machine learning prediction of complications after surgery in cirrhotic patients: Integrating nutritional risk with liver function. Arab journal of gastroenterology : the official publication of the Pan-Arab Association of Gastroenterology 56.0 10 Assessment and Reporting of Self‑Harm and Suicidal Ideation Among Adolescents and Young Adults with Cancer: A Mixed‑Methods Systematic Review. Seminars in oncology nursing 73.5 11 Revisiting classical genetic subtypes reveals subtype-specific relapse patterns and MRD prognostic relevance in pediatric acute lymphoblastic leukemia. Leukemia 49.12 12 Late complications after autologous HSCT for autoimmune diseases: a retrospective survey from the autoimmune diseases working party (ADWP), transplant complications working party (TCWP) and paediatric diseases working party (PDWP) of the european society for blood and marrow transplantation (EBMT). Bone marrow transplantation 68.3 13 Germline pathogenic variants in Japanese adolescents and young adults with advanced solid tumors: a nationwide tumor-normal paired sequencing study. International journal of clinical oncology 68.0 14 Population Pharmacokinetics of Bosutinib in Children with Philadelphia Chromosome-Positive Chronic Myelogenous Leukemia Based on a Phase I Dose-Finding Trial (ITCC-054/COG AAML1921) and Pediatric Recommended Phase II Dosage Evaluation. Clinical pharmacokinetics 78.22 15 Circulating tumor DNA precision oncology enables effective and sensitive molecular diagnostics and actionable target detection in pediatric solid tumors - the INFORM experience. Genome medicine 76.0 16 Pediatric neurosarcoidosis with cavernous sinus involvement and internal carotid artery stenosis. Zeitschrift fur Rheumatologie 61.2 17 A Case of Breast Metastasis from Primary Rhabdomyosarcoma of the Lower Leg. Surgical case reports 60.6 18 Golden Code Strategy: A Retrospective Study Evaluating the Implementation of a Direct Referral Pathway in Children and Adolescents With Suspected Cancer in a Middle-Income Country. Cancer control : journal of the Moffitt Cancer Center 68.0 19 A Case of Adenocarcinoma in a Stoma Site after 27 Years of Stoma Surgery for Hirschsprung's Disease. Surgical case reports 51.9 20 Evidence map and gap analysis of metabolic change in pediatric growth hormone deficiency treated with growth hormone. Pediatric investigation 39.70 21 Retrospective evaluation of palliative care consultation in critically ill adult and pediatric cancer subjects. Pediatric investigation 60.5 22 [Prevalence and associated factors of Helicobacter pylori in pediatric patients at a high-complexity institution in Medellín]. Revista de gastroenterologia del Peru : organo oficial de la Sociedad de Gastroenterologia del Peru 60.0 23 Hodgkin lymphoma of the ampulla of Vater: A rare cause of obstructive jaundice in children. JPGN reports 45.5 24 Successful propranolol therapy for infantile hepatic hemangioma with cardiac failure. JPGN reports 61.64 25 A case report of Peutz-Jeghers syndrome in a child with Crohn's disease. JPGN reports 47.5 26 The transformative potential of artificial intelligence in pediatric medicine: Current applications, methodological challenges, and future directions. Pediatric investigation 62.0 27 Myeloid sarcoma presenting as an isolated pancreatic mass in a 3-year-old child. JPGN reports 60.4 28 Association between Salivary Cortisol, Secretory IgA, and Inflammatory Cytokines with Early Childhood Caries: A Cross-sectional Analytical Study. Journal of International Society of Preventive & Community Dentistry 64.0 29 Applications and prospects of artificial intelligence and digital medicine in pediatric nasal skull base tumors. Pediatric investigation 58.4 30 Successful allo-hematopoietic stem cell transplantation using washed hematopoietic stem cells in a pediatric patient complicated by acute myeloid leukemia and severe anaphylaxis to blood product. Pediatric investigation 47.5 31 Paraneoplastic Opsoclonus Without Myoclonus Secondary to High-Grade Serous Carcinoma in an Adult. Cureus 60.4 32 Mandibular Inflammatory Myofibroblastic Tumors: A Literature Review with a New Case Presentation. Current oncology (Toronto, Ont.) 58.4
Neurocompute Parkinson’s Narrative Velocity Infographic
NEUROCOMPUTE VISUAL SYSTEM

Open the Narrative Velocity Map

Explore the full Parkinson’s research intelligence diagram.

Expand Intelligence View →
Full Neurocompute Infographic