Publications by authors named "Tannie Huang"

Article Synopsis
  • Somatic KRAS mutations are common in different types of cancer, while certain germline KRAS mutations can lead to disorders called RASopathies.
  • Researchers created special mice with two different KRAS mutations to study their effects on development and health.
  • The study found that one mutation (KrasT58I) caused facial problems and organ growth issues, while another (KrasP34R) led to breathing problems that resulted in early death, showing that these mutations affect the body in different ways.
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In this case report we evaluate the genetics of and scientific basis of therapeutic options for a 14-yr-old male patient diagnosed with metastatic PAX3-FOXO1 fusion positive alveolar rhabdomyosarcoma. A distinguishing genetic feature of this patient was a germline RET C634F mutation, which is a known driver of multiple endocrine neoplasia type 2A (MEN2A) cancer. Through sequential DNA and RNA sequencing analyses over the patient's clinical course, a set of gene mutations, amplifications, and overexpressed genes were identified and biological hypotheses generated to explore the biology of RET and coexisting signaling pathways in rhabdomyosarcoma.

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Article Synopsis
  • KRAS is the most frequently mutated oncogene, with different allele frequencies appearing in various cancers, raising questions about the biological selection for certain mutant forms.
  • Research combined structural biology and mouse models to show that two specific KRAS mutants have distinct effects on tissue homeostasis, reflecting their prevalence in human cancers.
  • The study highlights that the signaling properties of these KRAS mutants vary by context, explaining why certain mutants are more common in specific cancer types.
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Preclinical studies using genetically engineered mouse models (GEMM) have the potential to expedite the development of effective new therapies; however, they are not routinely integrated into drug development pipelines. GEMMs may be particularly valuable for investigating treatments for less common cancers, which frequently lack alternative faithful models. Here, we describe a multicenter cooperative group that has successfully leveraged the expertise and resources from philanthropic foundations, academia, and industry to advance therapeutic discovery and translation using GEMMs as a preclinical platform.

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Oncogenic NRAS mutations are highly prevalent in acute myeloid leukemia (AML). Genetic analysis supports the hypothesis that NRAS mutations cooperate with antecedent molecular lesions in leukemogenesis, but have limited independent prognostic significance. Using short hairpin RNA-mediated knockdown in human cell lines and primary mouse leukemias, we show that AML cells with NRAS/Nras mutations are dependent on continued oncogene expression in vitro and in vivo.

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We investigated whether the relative increased height of childhood acute lymphoblastic leukemia (ALL) survivors at diagnosis was due to referral bias, the height of California children, socio-economic status, or race/ethnicity. We reviewed the records of all Pediatric Oncology referrals to our institution from 1988 to 2007. Height at diagnosis, sex, age at and date of diagnosis, date of birth, diagnosis, race/ethnicity, and socio-economic status were evaluated.

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Patients with brain tumors are some of the most complex patients in the medical system, necessitating treatment teams of multiple subspecialists for optimal care. This article examines the roles of these subspecialists, with the goal of summarizing standard-of-care practices, recent therapeutic advances, and ongoing clinical investigations within each subspecialty.

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We examined records of all admissions to an isolated community neonatal intensive care unit (NICU) in California between 2001 and 2006. We also reviewed the echocardiograms for diagnosis, disposition of patient and necessity for transport. In 2004, a telemedicine link (mainly store-and-forward) was established to a university children's hospital (UCH) 290 km away.

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