Version 2.79

Part Description

LP221212-6   Cells.programmed cell death ligand 1
Programmed cell death-ligand 1 (PD-L1), also known as cluster of differentiation 274 (CD274) or B7 homolog 1 (B7-H1), is a protein that in humans is encoded by the CD274 gene. PD-L1 is the major ligand for the programmed cell death-1 (PD-1) receptor, which is present on the surface of T, B and NK cells and is part of the B7-CD28 superfamily. Binding PD-L1 and PD-L2 to the PD-1 receptor found on T-cells inhibits T cell proliferation and cytokine production. An increase PD-L1 expression occurs in some tumors, which helps protect them against active T-cell immune surveillance by binding to PD-1 and inhibiting the T-cell response. Positive PD-L1 immunohistochemistry in tumor cells may predict tumor response to therapy with immune checkpoint inhibitors, which are a new class of drugs that trigger an immune response against cancer cells by effectively suppressing the tumor's ability to inhibit the immune response. PMID: 25682184 Drugs in this class include pembrolizumab and nivolumab, both of which are anti-PD-1 receptor antibodies, and atezolizumab, which is an anti-PD-L1 antibody. PD-L1 may be a prognostic, diagnostic, and therapeutic marker in a variety of neoplasms, including carcinomas of the bladder, lung, and kidney. Source: Regenstrief LOINC

Fully-Specified Name

Component
Cells.programmed cell death ligand 1/Viable tumor cells
Property
NFr
Time
Pt
System
Tiss
Scale
Qn
Method
Immune stain

Additional Names

Long Common Name
Cells.programmed cell death ligand 1/Viable tumor cells in Tissue by Immune stain
Short Name
Cells.PD-L1/Viab tum NFr Tiss ImStn
Display Name
Cells.programmed cell death ligand 1/Viable tumor cells Immune stain (Tiss)
Consumer Name Alpha Get Info
Cells.programmed cell death ligand 1/Viable tumor cells, Tissue

Basic Attributes

Class
PATH
Type
Laboratory
First Released
Version 2.58
Last Updated
Version 2.79 (NAM)
Change Reason
Release 2.79: COMPONENT: Triggered by Coll w SCT: This is a specific fraction case where the denominator is percentage or /100. Because the logic is that the percentage piece is captured by Property: NFr (Numeric Fraction), and by Unit: %, therefore, it is redundant to include "100" in the component;
Order vs. Observation
Observation
Common Test Rank Get Info
16229

Language Variants Get Info

Tag Language Translation
es-ES Spanish (Spain) Células. Muerte celular programada del ligando 1/100 células tumorales viables:Fracción numérica:Punto temporal:Tejido:Qn:Tinción de inmunohistoquímica
Synonyms: Cuantitativo
es-MX Spanish (Mexico) Células ligando de muerte celular programada 1/100 células tumorales viables:Fracción numérica:Punto temporal:Tejido y frotis:Cuantitativo:Mancha inmune
it-IT Italian (Italy) Cellule.morte cellulare programmata ligando 1/Cellule tumorali vitali:NFr:Pt:Tessuto:Qn:Colorazione immunologica
Synonyms: Cellule tumorali vitali Frazione numerica Patologia PD-L1 Punto nel tempo (episodio) Tessuto & Strisci
nl-NL Dutch (Netherlands) cellen.geprogrammeerde celdood ligand 1/100 levensvatbare tumorcellen:getalsfractie:moment:weefsel en uitstrijkjes:kwantitatief:immunokleuring
pl-PL Polish (Poland) Komórki.ligand 1 programowanej śmierci komórki/100 żywych komórek nowotworowych:frakcja liczbowa:punkt w czasie:tkanka i rozmazy:ilościowy:barwnik immunologiczny
Synonyms: barwnik immunologiczny Ligand 1 programowanej śmierci komórki/100 żywych komórek nowotworowych Ligand receptora programowanej śmierci 1
zh-CN Chinese (China) 细胞.程序性死亡配体 1/活肿瘤细胞:计数型分数:时间点:组织与涂片:定量型:免疫染色法
Synonyms: Ⅰ I 免疫染色;免疫组化;免疫组化染色;免疫组化染色法;免疫组化法;免疫组织化学染色;免疫组织化学染色法;细胞免疫染色;细胞免疫染色法 可用数量表示的;定量性;数值型;数量型;连续数值型标尺 数量型分数;数量或计数型分数;数量型分数或计数型分数 时刻;随机;随意;瞬间 未作说明的组织;组织;组织 & 涂片 染法 染色方法 染色法 活（活的、存活、活性、可以存活的、有活力的）肿瘤细胞 着色 着色方法 着色法 细胞.程序性死亡配体-1;细胞.PD-L1 细胞含量;细胞性;细胞性质;细胞构成;细胞类

Example Units

Unit Source
% Example UCUM Units

LOINC Terminology Service (API) using HL7® FHIR® Get Info

CodeSystem lookup
https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=83053-9