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Dr. Zhang graduated from Johns Hopkins University with PhD. He has worked at Harvard University Genome Center as Senior System Biologist for years before joining University of Hong Kong in 2013. Dr. Zhang lab has broad interest in genetic and epigenetic regulation in development and diseases. Currently, his lab is focusing on epigenetic regulation of tumorigenesis. His lab employs high through-put ‘omics’ assays and large scale computation to dissect the gene regulatory network and signaling pathways involved in oncogenesis.


Cancer stem cells (CSCs) cause tumor heterogeneity, relapse, and resistance to therapy. The underpinnings of CSCs remain to be elucidated, especially the underlying gene regulatory network. We here conducted integrated analyses and identified a miRNA-regulatory network defining a stemness subtype with poor-prognosis from TCGA hepatocellular carcinoma (HCC) cohort with independent validations. The poor-prognosis subtype was characterized by the signature expression pattern of CSCs orchestrated by two miRNAs and their mRNA targets that formed a core regulatory circuitry (CRC). Within the CRC, miR483-3p bound a complementary sequence on SOX9 promoter, facilitating the recruitment of RNA polymerase II and STAT3, which was essential for SOX9 transcription activation. SOX9 can further activate SOX4 expression. Both SOX4 and its associated activator lncSOX4 were the direct targets of miR204-5p. SOX4 and miR204-5p formed double-negative feedback loop through mutual inhibition. The expression level of miR204-5p was tightly modulated by miR483-3p, whose promoter was significantly de-methylated in the stemness subtype. Activation of the CRC essential for the self-renewal and maintenance of liver CSCs culminated in downregulation of miR204-5p and upregulation of miR483-3p, SOX9, and SOX4. Functional significance of the CRC for HCC metastasis and drug resistance was further demonstrated with various in vitro and in vivo assays.

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Delegates are personally responsible for their belongings at the venue. The Organizers will not be held responsible for any stolen or missing items belonging to Delegates, Speakers or Attendees; due to any reason whatsoever.


Registration fees do not include insurance of any kind.


Please note that any (or) all transportation and parking is the responsibility of the registrant.


Press permission must be obtained from Allied Academies Conference Organizing Committee prior to the event. The press will not quote speakers or delegates unless they have obtained their approval in writing. The Allied Academies is an objective third-party nonprofit organization. This conference is not associated with any commercial meeting company.

Requesting an Invitation Letter

For security purposes, letter of invitation will be sent only to those individuals who had registered for the conference. Once your registration is complete, please contact to request a personalized letter of invitation.

Regarding refunds, all bank charges will be for the registrant's account.

All cancellations or modifications of registration must be made in writing to

Cancellation Policy

If Allied Academies cancels this event for any reason, you will receive a credit for 100% of the registration fee paid. You may use this credit for another Allied Academies event which must occur within one year from the date of cancellation.


If Allied Academies postpones an event for any reason and you are unable or unwilling to attend on rescheduled dates, you will receive a credit for 100% of the registration fee paid. You may use this credit for another Allied Academies event which must occur within one year from the date of postponement.

Transfer of registration

All fully paid registrations are transferable to other persons from the same organization if registered person is unable to attend the event. Transfers must be made by the registered person in writing to . Details must be included the full name of replacement person, their title, contact phone number and email address. All other registration details will be assigned to the new person unless otherwise specified.

Registration can be transferred to one conference to another conference of Allied Academies if the person is unable to attend one of the conferences.

However, Registration cannot be transferred if it is intimated within 14 days of the respective conference.

The transferred registrations will not be eligible for Refund.

Visa Information

Keeping in view of increased security measures, we would like to request all the participants to apply for Visa as soon as possible.

Allied Academies will not directly contact embassies and consulates on behalf of visa applicants. All delegates or invitees should apply for Business Visa only.

Important note for failed visa applications: Visa issues cannot come under the consideration of cancellation policy of Allied Academies, including the inability to obtain a visa.

Refund Policy:

If the registrant is unable to attend and is not in a position to transfer his/her participation to another person or event, then the following refund arrangements apply:

Keeping in view of advance payments towards Venue, Printing, Shipping, Hotels and other overheads, we had to keep Refund Policy is as following slabs-

  • Before 60 days of the conference: Eligible for Full Refund less $100 service Fee
  • Within 60-30 days of Conference: Eligible for 50% of payment Refund
  • Within 30 days of Conference: Not eligible for Refund
  • E-Poster Payments will not be refunded.

Accommodation Cancellation Policy:

Accommodation Providers (Hotels) have their own cancellation policies, and they generally apply when cancellations are made less than 30 days prior to arrival. Please contact us as soon as possible, if you wish to cancel or amend your accommodation. Allied Academies will advise the cancellation policy of your accommodation provider, prior to canceling or amending your booking, to ensure you are fully aware of any non-refundable deposits.

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