8 Matching Annotations
  1. Last 7 days
    1. c.533T>G p.Leu178Arg

      PatientID: None (proband 10’s son)

      KindredID: 10

      Case: M, 30Y0M, Chinese

      DiseaseAssertion: VHL

      FamilyInfo: Patient’s father was found with hemangioblastoma diagnosed at 39Y, as well as retinal capillary hemangioma, renal cell carcinoma and pancreatic cysts diagnose at 57Y

      CasePresentingHPOs: HP:0005584 (renal cell carcinoma)

      CaseHPOFreeText: patient had RCC diagnosed at 30Y

      CaseNotHPOs: N/A

      CaseNotHPOFreeText: N/A

      CasePreviousTesting: N/A

      PreviouslyPublished: N/A

      SupplementalData: N/A

      Variant: p.L178R (c.533T>G)

      CaseProblemVariantFreeText: N/A

      LegacyVariant: N/A

      ClinVarID: 625261 https://www.ncbi.nlm.nih.gov/clinvar/variation/625261/

      CAID: N/A

      gnomAD: N/A

      VariantEvidence: N/A

      MutationType: missense_variant; transversion

      CivicName: L178R (c.533T>G)

      MultipleGeneVariants: N/A

    2. c.533T>G p.Leu178Arg

      PatientID: None (proband 10)

      KindredID: 10

      Case: M, 57Y0M, Chinese

      DiseaseAssertion: VHL

      FamilyInfo: Patient’s son was found with the same mutation, as well as RCC diagnosed at 30Y

      CasePresentingHPOs: HP:0010797; HP:0009711; HP:0005584; HP:0001737 (hemangioblastoma, retinal capillary hemangioma, renal cell carcinoma, pancreatic cysts)

      CaseHPOFreeText: patient had hemangioblastoma diagnosed at 39Y, as well as retinal capillary hemangioma, renal cell carcinoma and pancreatic cysts diagnose at 57Y

      CaseNotHPOs: N/A

      CaseNotHPOFreeText: N/A

      CasePreviousTesting: N/A

      PreviouslyPublished: N/A

      SupplementalData: N/A

      Variant: p.L178R (c.533T>G)

      CaseProblemVariantFreeText: N/A

      LegacyVariant: N/A

      ClinVarID: 625261 https://www.ncbi.nlm.nih.gov/clinvar/variation/625261/

      CAID: N/A

      gnomAD: N/A

      VariantEvidence: N/A

      MutationType: missense_variant; transversion

      CivicName: L178R (c.533T>G)

      MultipleGeneVariants: N/A

    3. Relative telomere length assessment Genomic DNA was isolated from peripheral blood by using a blood DNA extraction kit (Tiangene). We followed the method described by Cawthon to quantify relative telomere length by measuring copy number ratio of telomere repeats (T) to the single copy gene 36B4 (S) using qRT-PCR (24). The 10-μL PCR mixture contained 2X SYBR master mix (Takara) 5 μL, genomic DNA 30 ng, 300 nmol/L telomere primer Tel1 (5′-GGTTTTTGAGGGTGAGGGTGAGGGTGAGGGTGAGGGT) and 900 nmol/L Tel2 (5′-TCCCGACTATCCCTATCCCTATCCCTATCCCTATCCCTA), or 200 nmol/L single copy gene primer 36B4u (5′-CAGCAAGTGGGAAGGTGTAATCC), and 500 nmol/L 36B4d (5′-CCCATTCTATCATCAACGGGTACAA; ref. 19). qRT-PCR was run in an ABI 7500 PCR instrument using the profile of 95°C for 30 seconds and 40 cycles of 95°C for 15 seconds, 54°C for 2 minutes, and 72°C for 15 seconds. A standard curve from a control DNA sample (male, 45 years old) by serial 1/4 dilutions from 50 ng to 0.19 ng was constructed to evaluate the amplification efficiency (E), and this sample was measured in every batch of PCRs as the inter-run calibration. Threshold cycle (Ct) values were automatically determined by the 7500 software v2.0.5. The measurements of telomere length and single copy gene 36B4 were triplicate in one batch for each sample, and the mean of the three Ct values (Cm) was used for the calculation. PCR efficiency and the calibration of copy numbers were also enrolled in the telomere length calculation (19, 25). The formula to calculate the copy number ratio of telomere repeats (T) to single copy gene 36B4 (S) is as follows, and T/S represents the value of relative telomere length. <img class="highwire-embed" alt="Embedded Image" src="https://cancerres-aacrjournals-org.uhn.idm.oclc.org/sites/default/files/highwire/canres/74/14/3802/embed/graphic-1.gif"/> The relationship between age and relative telomere length in 325 normal controls can be expressed by the linear regression equation of Y = 1.4503-0.0117*X (see Fig. 2). Normal relative telomere length at the DNA sample-obtained age can then be predicted by this equation. The difference between predicted normal relative telomere length at the DNA-obtained age and the relative telomere length actually measured was the age-adjusted relative telomere length (19), which was used for the comparison among patients with VHL in generations. Telomere length measurement by Southern blot analysis The oligonucleotide (TTAGGG)4 was tailed with DIG-dUTP as the probe by using terminal transferase. Two micrograms of genomic DNA were digested with HinfI/RsaI and separated in 0.8% agarose gel. The DNA fragments in the gel were then transferred onto a Hybond-N membrane by Southern blotting. After UV cross-link and prehybridization, the membrane was hybridized in a solution containing 2 pmol/mL probe, 50% formamide, 2× SSC, 0.1% lauroyl sarcosine, 0.02% SDS, and 1% milk powder at 42°C for 6 hours, washed at room temperature in 2× SSC, 0.1% SDS for two times, and in 0.1× SSC, 0.1% SDS, 15 minutes for two times. Hybridized probe on the membrane was recognized by alkaline phosphatase conjugated anti-DIG antibody and chemiluminescent method. The luminescent image was developed on a phosphoimager. The telomere length was calculated by a telomeric software (version 1.2; ref. 26).
    1. PatientID: 233

      KindredID: 86

      Case: M, 30Y0M, Chinese

      DiseaseAssertion: VHL

      FamilyInfo: The proband (patient 229) had a sister (patient 230) who was genetically confirmed with the mutation, and presented with a CNS hemangioblastoma at age 40. The proband's brother 1 (patient 231) was also confirmed with the mutation and had a retinal angioma at 25, and renal cell carcinoma at 54. The proband's brother 2 passed away before they could be diagnosed/ confirmed with the mutation, but they had a CNS hemangioblastoma at 35. Finally, the proband's nephew (son of brother 2) was genetically confirmed with the mutation and presented with renal cell carcinoma at age 30.

      CasePresentingHPOs: HP:0005584 (Renal cell carcinoma)

      CaseHPOFreeText: The proband's nephew (son of brother 2) (patient 233) had a renal cell carcinoma at age 30.

      CaseNotHPOs: HP:0002666; HP:0001737; HP:0001732; HP:0009711; HP:0010797 (Pheochromocytoma, Pancreatic cysts, Abnormality of the pancreas, Retinal capillary hemangioma, Hemangioblastoma)

      CaseNotHPOFreeText: N/A

      CasePreviousTesting: N/A

      PreviouslyPublished: This patient was also published in a later paper by Wang et al., 2018 (PMID: 29330336).

      SupplementalData: Patient and family genotype-phenotype information is listed in Supplementary Table 1.

      Variant: p.L178R (c.533T>G)

      LegacyVariant: N/A

      CaseProblemVariantFreeText: N/A

      ClinVarID: 625261, https://www.ncbi.nlm.nih.gov/clinvar/variation/625261/

      CAID: N/A

      gnomAD: N/A

      VariantEvidence: N/A

      MutationType: missense_variant;transversion

      CivicName: L178R (c.533T>G)

      MultipleGeneVariants: N/A

    2. PatientID: 230

      KindredID: 86

      Case: F, 40Y0M, Chinese

      DiseaseAssertion: VHL

      FamilyInfo: The proband (patient 229) had a sister (patient 230) who was genetically confirmed with the mutation, and presented with a CNS hemangioblastoma at age 40. The proband's brother 1 (patient 231) was also confirmed with the mutation and had a retinal angioma at 25, and renal cell carcinoma at 54. The proband's brother 2 passed away before they could be diagnosed/ confirmed with the mutation, but they had a CNS hemangioblastoma at 35. Finally, the proband's nephew (son of brother 2) was genetically confirmed with the mutation and presented with renal cell carcinoma at age 30.

      CasePresentingHPOs: HP:0010797 (Hemangioblastoma)

      CaseHPOFreeText: The proband's sister (patient 230) had a CNS hemangioblastoma at age 40.

      CaseNotHPOs: HP:0002666; HP:0001737; HP:0001732; HP:0005584; HP:0009711 (Pheochromocytoma, Pancreatic cysts, Abnormality of the pancreas, Renal cell carcinoma, Retinal capillary hemangioma)

      CaseNotHPOFreeText: N/A

      CasePreviousTesting: N/A

      PreviouslyPublished: This patient was also published in a later paper by Wang et al., 2018 (PMID: 29330336).

      SupplementalData: Patient and family genotype-phenotype information is listed in Supplementary Table 1.

      Variant: p.L178R (c.533T>G)

      LegacyVariant: N/A

      CaseProblemVariantFreeText: N/A

      ClinVarID: 625261, https://www.ncbi.nlm.nih.gov/clinvar/variation/625261/

      CAID: N/A

      gnomAD: N/A

      VariantEvidence: N/A

      MutationType: missense_variant;transversion

      CivicName: L178R (c.533T>G)

      MultipleGeneVariants: N/A

    1. p.Leu178Arg51M−Retinal/cerebellar/spinal hemangioblastoma, pancreatic cyst

      A retrospective medical chart review was performed on patients referred to the genetics service. A 51 year old male presented with retinal, cerebellar, and spinal hemangioblastoma and a pancreatic cyst. Genetic testing confirmed a non-familial mutation (presumed) at c.533T>G of the VHL gene. Family history is negative.

    1. PatientID: N/A

      KindredID: 7

      Case: M, 58Y0M, Chinese

      DiseaseAssertion: Assumed VHL

      FamilyInfo: Patient had family history of VHL disease. Patient’s nephew presented with renal cell carcinoma at 30, patient's sister/brother presented with a hemangioblastoma at age 39 and then retinal capillary hemangioma, renal cell carcinoma, and abnormality of the pancreas at age 57. Patient’s sister presented with a hemangioblastoma at age 40. All three of these family members were genetically tested and possessed the same mutation. Patient’s other brother presented with a hemangioblastoma at age 35 but died before diagnosis and genetic testing.

      CohortInfo: 16 Chinese patients clinically diagnosed with VHL disease.

      CasePresentingHPOs: HP:0009711, HP:0005584 (retinal capillary hemangioma, renal cell carcinoma)

      CaseHPOFreeText: Patient presented with retinal hemangioma at age 25 and renal cell carcinoma at age 54.

      CaseNotHPOs: HP:0002666, HP:0030393, HP:0010797, HP:0001732 (pheochromocytoma, endolymphatic sac tumor, hemangioblastoma, abnormality of the pancreas)

      CaseNotHPOFreeText: N/A

      CasePreviousTesting: N/A

      PreviouslyPublished: N/A

      SupplementalData: N/A

      Variant: p.L178R (c.533T>G)

      LegacyVariant: N/A

      CaseProblemVariantFreeText: N/A

      ClinVarID: 625261, https://www.ncbi.nlm.nih.gov/clinvar/variation/625261/

      CAID: N/A

      gnomAD: N/A

      VariantEvidence: N/A

      MutationType: missense_variant; transversion

      CivicName: L178R (c.533T>G)

      MultipleGeneVariants: N/A

  2. Oct 2026
    1. A retrospective cohort study included all the VHL patients diagnosed at Peking University First Hospital (Beijing, China) prior to June 1 2016. A total of 291 patients from 115 different families were included for analysis. This familial mutation was confirmed in family #86. The proband (patient 229) was a male who was diagnosed with CNS hemangioblastoma at 39Y, retinal angioma at 57Y, renal cell carcinoma at 57Y, and multiple pancreatic cysts/tumors at 57Y. His sister (patient 230) was diagnosed with CNS hemangioblastoma at 40Y. His first brother (brother 1, patient 231) was diagnosed with retinal angioma at 25Y and renal cell carcinoma at 54Y. His second brother (patient 232), who passed away before he could be genetically confirmed with the mutation, was diagnosed with CNS hemangioblastoma at 35Y. His nephew (son of second brother, patient 233) was diagnosed with a renal cell carcinoma at 30Y. This kindred was also published in a paper by Wang et al., 2018 (PMID: 29330336).