Circulating Chromogranin A Is Associated With Disease Extent, Progression, and Recurrence in Patients With Nonfunctioning Pancreatic Neuroendocrine Tumor
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View abstract on PubMed
Summary
This summary is machine-generated.Serum chromogranin A (CgA) is a valuable biomarker for monitoring nonfunctioning pancreatic neuroendocrine tumors (NF-PNETs) after surgery. Elevated CgA levels in patients with NF-PNETs indicate disease extent and aid in post-resection surveillance.
Area Of Science
- Oncology
- Biochemistry
- Medical Diagnostics
Background
- Nonfunctioning pancreatic neuroendocrine tumors (NF-PNETs) are rare and exhibit diverse biological characteristics.
- Current post-resection surveillance for NF-PNETs lacks a standardized protocol, relying on radiology and serum biomarkers.
- Serum chromogranin A (CgA) is often elevated in NF-PNET and generally reflects disease burden, though studies often combine pancreatic and gastrointestinal NET populations.
Purpose Of The Study
- To review the existing literature on NF-PNETs, focusing on post-resection surveillance strategies.
- To evaluate the utility of serum chromogranin A (CgA) as a biomarker for surveillance following NF-PNET resection.
- To hypothesize that CgA is a useful marker for monitoring disease recurrence after NF-PNET surgery.
Main Methods
- A comprehensive literature review was conducted using PICO criteria.
- The review focused on human patients with NF-PNETs who underwent pancreatectomy.
- The primary outcome assessed was the correlation between CgA levels and disease recurrence.
Main Results
- Analysis of four studies with 333 resected NF-PNET patients revealed that 110 (97%) of the 113 patients who recurred had elevated CgA levels.
- Seven additional studies, including mixed gastro-entero-pancreatic neuroendocrine tumors (NETs), involved 269 NF-PNET patients.
- In these mixed populations, CgA consistently demonstrated a correlation with the extent of the disease.
Conclusions
- Serum chromogranin A (CgA) levels demonstrate a significant correlation with the extent of nonfunctioning pancreatic neuroendocrine tumors (NF-PNETs).
- CgA is a useful biomarker for surveillance purposes after the surgical resection of NF-PNETs.
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