Stem cell transplant Flashcards

1
Q

BM collection has lower ______ content than PBSC and do not require mobilization

A

T cell

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2
Q

Target cell dose for BM collection

A

2 x 10^8 TNC/kg

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3
Q

Target cell dose for PBSC

A

> 5 X 10^6 CD34/kg

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4
Q

HLA matching appears to demonstrate survival benefit at this stage of disease

A

early and intermediate

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5
Q

risk of GVHD associated with HLA-DPB1 mismatching was influenced by the HLA-DPB1 rs9277534 expression marker, with _____ subtype being associated with greater risk than ______ subtype

A

G;A

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6
Q

Melting Temperature equation

A

Tm= 4(G+C) + 2 (A+T)

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7
Q

Temperature and salt conditions favored for high stringency

A

High and low

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8
Q

PCR: temperature at which denaturation occurs

A

94-96C

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9
Q

PCR: temperature at which primers anneal

A

50-65C

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10
Q

PCR: temperature at which extention occurs

A

72C

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11
Q

Too much Mg can decrease _______

A

fidelity

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12
Q

Variable EDTA and Citrate in sample can effect amount of _____

A

MG

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13
Q

Mg required for ______ activation

A

Taq polymerase

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14
Q

KCl important in _______

A

primer annealing

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15
Q

DMSO can be added and temperatures lowered when ____ content is high; however this can negatively affect_____

A

GC; Taq

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16
Q

SSP requires ______ specificity

A

3’end

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17
Q

Ideal primer length

A

~20 nucleotides

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18
Q

Ideal primer GC content; however avoid ______

A

50%; GC runs

19
Q

Probe design: best specificity lies in ______ at the _____ of the probe

A

polymorphism; center

20
Q

Early CD3 engraftment may identify patients at risk of _____

A

GVHD

21
Q

How many cells do you need for 1 ng of template?

A

150

22
Q

How many cells do you need for 10 ng of template?

A

1500

23
Q

How many cell do you need for 100 ng of template

A

150,000

24
Q

Minimum dose of single cord transplant

A

3 x 10^7 TNC/kg

25
Q

http://hla.alleles.org

A

Nomenclature

26
Q

http://igdawg.org/cwd.html

A

Common and well documented alleles

27
Q

http://www.ebi.ac.uk/ipd/imgt/hla/

A

Allele history, alignments, serologic links

28
Q

https://bioinformatics.bethematchcli nical.org/

A

Allele/haplotype frequencies in US, haplotype tools, multi-allele codes, link to NMDP search strategy advice, CT policies

29
Q

http://www.pypop.org/popdata/

A

World-wide allele distribution maps

30
Q

http://www.bmdw.org/

A

World-wide database HLA phenotypes of volunteer donors, cbu for transplant centers/search coordinators; requires authorization to access

31
Q

National registries / cord blood banks; USA–

https://bethematchclinical.org/

A

Preliminary & formal unrelated donor/cbu search (physician (prelim only), transplant center)

32
Q

https://www.mh-hannover.de/institute/transfusion/histocheck/

A

visualizing ribbon structure of HLA molecule and interrogation of peptide groove

33
Q

______ are rules mandated by the government

A

regulations

34
Q

______ are rules established by accrediting agency

A

standards

35
Q

STR: Mixture of donor and host

A

Mixed chimerism

36
Q

STR: One or more lineages complete donor others complete host

A

Split chimerism

37
Q

STR: Mixed chimerism in a subset (e.g., T cells)

A

Subset chimerism

38
Q

STR: <1% donor chimerism

A

microchimerim

39
Q

STRs are this long and are known as _______

A

2-8 basepairs(some variability); microsatellites

40
Q

VNTR are this long and are known as _______

A

> 8 basepairs, usually much larger; minisatellites

41
Q

STR: Repeats that are short sequences of the same length

A

Simple

42
Q

STR: 2 or more adjacent repeats of same length

A

Compound

43
Q

STR: Variable length and composition repeats

A

Complex