# Clinical characteristics and prognosis of newly diagnosed multiple myeloma patients with FGFR3 gene mutations

**Authors:** 娜 沈, 珏 张, 园 夏, 旭星 沈, 静 王, 媛媛 金, 闰 张, 建勇 李, 丽娟 陈

PMC · DOI: 10.3760/cma.j.issn.0253-2727.2023.12.004 · Chinese Journal of Hematology · 2023-12-01

## TL;DR

This study finds that FGFR3 gene mutations in newly diagnosed multiple myeloma patients are linked to worse clinical outcomes and shorter survival.

## Contribution

The study identifies FGFR3 mutations as an independent prognostic factor in multiple myeloma.

## Key findings

- FGFR3-mutated patients had lower albumin and higher β2-microglobulin levels.
- FGFR3 mutations were associated with shorter progression-free and overall survival.
- Combining FGFR3 mutations with t(4;14) showed even worse survival outcomes.

## Abstract

探讨FGFR3基因突变对初诊多发性骨髓瘤（MM）患者临床特征及预后的影响。

回顾性分析2016年1月至2023年2月江苏省人民医院血液科诊治的198例初诊MM患者，所有患者采用二代测序技术检测FGFR3基因突变，以及胞质轻链免疫荧光结合荧光原位杂交技术检测t（4；14）核型，使用Log-rank检验和Cox风险比例回归模型分析FGFR3基因突变与临床特征及预后的相关性。

198例患者中，28例（14.1％）伴FGFR3突变。与无FGFR3突变的患者相比，FGFR3突变的患者初诊时白蛋白水平明显降低（P＝0.012），β2-微球蛋白水平明显升高（P＝0.014），t（4；14）阳性率增加（P<0.001），R-ISS分期Ⅲ期比例更高（P<0.001）。相较于无FGFR3突变患者，FGFR3突变患者具有更短的无进展生存（PFS）期（28个月对33个月，P＝0.024）和总生存（OS）期（54个月对未达到，P＝0.028）。联合FGFR3突变和 t（4；14）进行生存分析，FGFR3突变和（或）t（4；14）阳性患者较FGFR3突变且t（4；14）均阴性组患者PFS期（30个月对38个月，P＝0.012）和OS期（54个月对未达到，P＝0.017）均缩短。Cox比例风险回归分析显示，FGFR3突变是影响初诊MM患者PFS及OS的独立危险因素。

FGFR3基因突变与初诊MM患者预后不良显著相关。

## Linked entities

- **Genes:** FGFR3 (fibroblast growth factor receptor 3) [NCBI Gene 2261]
- **Diseases:** multiple myeloma (MONDO:0009693)

## Full-text entities

- **Genes:** ALB (albumin) [NCBI Gene 213] {aka FDAHT, HSA, PRO0883, PRO0903, PRO1341}, FGFR3 (fibroblast growth factor receptor 3) [NCBI Gene 2261] {aka ACH, CD333, CEK2, HSFGFR3EX, JTK4}, HLA-G (major histocompatibility complex, class I, G) [NCBI Gene 3135] {aka MHC-G}
- **Diseases:** NDMM (MESH:D009101)
- **Species:** Homo sapiens (human, species) [taxon 9606]

## Full text

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## Figures

2 figures with captions in the complete paper: https://tomesphere.com/paper/PMC10834875/full.md

## References

24 references — full list in the complete paper: https://tomesphere.com/paper/PMC10834875/full.md

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Source: https://tomesphere.com/paper/PMC10834875